on-load tap-changer gridcon® itap®...table of contents 6 gridcon® itap® 4288748/02 en...

On-Load Tap-ChangerGRIDCON® iTAP®

Operating Instructions

4288748/02 EN

© All rights reserved by Maschinenfabrik ReinhausenDissemination and reproduction of this document and use and disclosure of its content are strictly prohibitedunless expressly permitted.Infringements will result in liability for compensation. All rights reserved in the event of the granting of patents,utility models or designs.The product may have been altered since this document was published.We reserve the right to change the technical data, design and scope of supply.Generally the information provided and agreements made when processing the individual quotations and ordersare binding.The original operating instructions were written in German.

Table of contents

Maschinenfabrik Reinhausen GmbH 2015 34288748/02 EN GRIDCON® iTAP®

Table of contents

1 Introduction......................................................................................................................... 71.1 Validity................................................................................................................................................. 7

1.2 Manufacturer....................................................................................................................................... 7

1.3 Subject to change without notice......................................................................................................... 7

1.4 Completeness...................................................................................................................................... 7

1.5 Supporting documents......................................................................................................................... 7

1.6 Safekeeping......................................................................................................................................... 8

1.7 Notation conventions........................................................................................................................... 81.7.1 Symbols................................................................................................................................................................. 8

1.7.2 Hazard communication system............................................................................................................................. 9

1.7.3 Information system.............................................................................................................................................. 11

1.7.4 Instruction system............................................................................................................................................... 11

1.7.5 Typographic conventions.................................................................................................................................... 11

2 Safety................................................................................................................................. 132.1 General safety information................................................................................................................ 13

2.2 Appropriate use................................................................................................................................. 13

2.3 Inappropriate use............................................................................................................................... 14

2.4 Personnel qualification...................................................................................................................... 15

2.5 Operator's duty of care...................................................................................................................... 15

2.6 Personal protective equipment.......................................................................................................... 15

3 Product description.......................................................................................................... 173.1 Scope of delivery............................................................................................................................... 17

3.2 Function description.......................................................................................................................... 173.2.1 Suitability............................................................................................................................................................. 18

3.2.2 Voltage regulation............................................................................................................................................... 18

3.2.3 Basic circuit arrangements of the tapped transformer with preventive auto transformer.................................... 18

3.3 Variants............................................................................................................................................. 22

3.4 Performance features........................................................................................................................ 22

3.5 Setup/models..................................................................................................................................... 23

4 Packaging, transport and storage................................................................................... 304.1 Packaging.......................................................................................................................................... 304.1.1 Suitability............................................................................................................................................................. 30

Table of contents

Maschinenfabrik Reinhausen GmbH 20154 4288748/02 ENGRIDCON® iTAP®

4.1.2 Markings.............................................................................................................................................................. 30

4.2 Transportation, receipt and handling of shipments............................................................................ 31

4.3 Storage of shipments......................................................................................................................... 32

4.4 Unpacking shipments and checking for transportation damages...................................................... 33

5 Installing the on-load tap-changer in the transformer................................................... 34

6 Carrying out the transformer ratio test........................................................................... 38

7 Measuring DC resistance on transformer....................................................................... 41

8 Drying the on-load tap-changer....................................................................................... 42

9 Filling transformer with oil............................................................................................... 43

10 Commissioning of on-load tap-changer by transformer manufacturer....................... 4410.1 Connecting and securing motor-drive unit to on-load tap-changer.................................................... 44

10.2 Connecting control unit/regulation unit to motor-drive unit and voltage supply................................. 46

10.3 Carrying out automatic adjustment.................................................................................................... 48

10.4 Performing trial tap-change operations............................................................................................. 52

10.5 Electrical high-voltage tests on the transformer................................................................................ 55

10.6 Dielectric tests on transformer wiring................................................................................................ 56

11 Transporting transformer to equipment manufacturer................................................. 57

12 Commissioning the transformer at the operating site.................................................. 5812.1 Mounting control unit/regulation unit.................................................................................................. 58

12.2 Connecting control unit/regulation unit.............................................................................................. 6112.2.1 Cable recommendation....................................................................................................................................... 61

12.2.2 Electromagnetic compatibility.............................................................................................................................. 62

12.2.3 Connecting control unit/regulation unit to motor-drive unit.................................................................................. 65

12.2.4 Connecting control unit/regulation unit to voltage supply.................................................................................... 66

12.3 Performing trial tap-change operations............................................................................................. 68

12.4 Checking automatic voltage regulation.............................................................................................. 69

12.5 Switching on the low-voltage busbar................................................................................................. 70

13 Configuring the control unit/regulation unit................................................................... 7313.1 Calling up the web interface.............................................................................................................. 73

13.2 Setting the operating responses........................................................................................................ 74

13.3 Configuring voltage regulation........................................................................................................... 7613.3.1 Busbar................................................................................................................................................................. 76

Table of contents


13.3.2 Remote sensor.................................................................................................................................................... 78

13.3.3 Current-dependent desired value adjustment..................................................................................................... 80

13.3.4 Power-dependent desired value adjustment....................................................................................................... 83

13.3.5 Multi-sensor......................................................................................................................................................... 86

13.4 Configuring the connection to the control system.............................................................................. 8813.4.1 Protocol specification.......................................................................................................................................... 89

13.4.2 IEC 60870-5-104 data points.............................................................................................................................. 90

13.4.3 MODBUS TCP data points.................................................................................................................................. 99

13.4.4 Configuring IOA for IEC 60870-5-104............................................................................................................... 111

13.5 Show system data........................................................................................................................... 112

13.6 Activating additional functions......................................................................................................... 115

13.7 Security settings.............................................................................................................................. 116

13.8 Setting measured value logging (optional)...................................................................................... 116

13.9 Carrying out LED test...................................................................................................................... 117

14 Connecting external measuring device (only key-operated switch variant)............. 118

15 Maintenance and care..................................................................................................... 119

16 Fault elimination.............................................................................................................. 120

17 Messages (optional)........................................................................................................ 122

18 Technical data................................................................................................................. 12318.1 Technical data for the on-load tap-changer..................................................................................... 123

18.2 Technical data for the motor-drive unit............................................................................................ 124

18.3 Technical data of the control unit/regulation unit............................................................................. 124

19 Appendix.......................................................................................................................... 12719.1 Connection diagram for on-load tap-changer with 9 operating positions, equalizer winding, and

maximum number of windings for operating position 1 (3052067).................................................. 128

19.2 Connection diagram for on-load tap-changer with 9 operating positions, equalizer winding, andmaximum number of windings for operating position 9 (3052066).................................................. 129



19.5 Dimensional drawing for 30 A on-load tap-changer, as an example for 9 operating positions(7816150)........................................................................................................................................ 132

19.6 Dimensional drawing for 85 A on-load tap-changer, as an example for 9 operating positions(100120340).................................................................................................................................... 133

Table of contents


19.7 Dimensional drawing for on-load tap-changer, as an example for 9 operating positions (7816150)...... 134

19.8 On-load tap-changer rated withstand voltage (780029).................................................................. 135

19.9 Dimension diagram for control unit/regulation unit.......................................................................... 136

19.10 Dimensional drawing of device carrier............................................................................................. 138

19.11 Motor-drive unit terminal diagram.................................................................................................... 139

19.12 Control unit/regulation unit terminal diagram................................................................................... 139

19.13 Floating contacts (optional) terminal diagram.................................................................................. 140

1 Introduction


IntroductionThis technical file contains detailed descriptions on the safe and proper in-stallation, connection, commissioning and monitoring of the product. +

In addition, this file contains technical data [ 123] for selecting the appro-priate product for a respective application.

It also includes safety instructions and general information about the prod-uct.

This technical file is intended solely for specially trained and authorized per-sonnel.

ValidityThis technical file applies to the GRIDCON® iTAP® on-load tap-changer, as-sociated motor-drive unit and control unit/regulation unit.

ManufacturerThe product is manufactured by:

Maschinenfabrik Reinhausen GmbH

Falkensteinstraße 893059 Regensburg, GermanyTel.: (+49) 9 41/40 90-0Fax: (+49) 9 41/40 90-7001E-mail: [email protected]

Further information on the product and copies of this technical file are avail-able from this address if required.

Subject to change without noticeThe information contained in this technical file comprises the technical speci-fications approved at the time of printing. Significant modifications will be in-cluded in a new edition of the technical file.

The document number and version number of this technical file are shown inthe footer.

CompletenessThis technical file is incomplete without the supporting documentation.

Supporting documentsThe following documents also apply in addition to this technical file: Connection diagrams

1

1.1

1.2

1.3

1.4

1.5

1 Introduction


Routine test report Preventive auto transformer design guideline (available upon request as

needed) Preventive auto transformer installation manual (available upon request

as needed)

Also observe generally valid legislation, standards, and guidelines as well asspecifications on accident prevention and environmental protection in the re-spective country of use.

SafekeepingThis technical file and all supporting documents must be kept ready at handand accessible for future use at all times.

Notation conventionsThis section contains an overview of the symbols and textual emphasisused.

Symbols

Symbol MeaningWrench size

Tightening torque

Number and type of fastening material used

Fill with oil

Cut open, cut through

Clean

Visual inspection

Use your hand

1.6

1.7

1.7.1

1 Introduction


Symbol MeaningAdapter ring

Apply a coat of paint

Use a file

Grease

Coupling bolt

Use a ruler

Use a saw

Hose clip

Wire eyelet, safety wire

Use a screwdriver

Apply adhesive

Lock tab

Table 1: Symbols

Hazard communication system

Warnings in this technical file are displayed as follows.

Warning relating to section

Warnings relating to sections refer to entire chapters or sections, sub-sec-tions or several paragraphs within this technical file. Warnings relating tosections use the following format:

1.7.2

1.7.2.1

1 Introduction


WARNING Type and source of dangerConsequences Action Action

Embedded warning information

Embedded warnings refer to a particular part within a section. These warn-ings apply to smaller units of information than the warnings relating to sec-tions. Embedded warnings use the following format:

DANGER! Instruction for avoiding a dangerous situation.

Signal words and pictograms

The following signal words are used:

Signalword

Meaning

DANGER Indicates a hazardous situation which, if not avoided, willresult in death or serious injury.

WARNING Indicates a hazardous situation which, if not avoided, couldresult in death or serious injury.

CAUTION Indicates a hazardous situation which, if not avoided, couldresult in injury.

NOTICE Indicates measures to be taken to prevent damage toproperty.

Table 2: Signal words in warning notices

Pictograms warn of dangers:

Pictogram MeaningWarning of a danger point

Warning of dangerous electrical voltage

Warning of combustible substances

1.7.2.2

1.7.2.3

1 Introduction


Pictogram MeaningWarning of danger of tipping

Table 3: Pictograms used in warning notices

Information system

Information is designed to simplify and improve understanding of particularprocedures. In this technical file it is laid out as follows:

Important information.

Instruction system

This technical file contains single-step and multi-step instructions.

Single-step instructions

Instructions which consist of only a single process step are structured as fol-lows:

Aim of actionü Requirements (optional). Step 1 of 1.

ð Result of step (optional).ð Result of action (optional).

Multi-step instructions

Instructions which consist of several process steps are structured as follows:

Aim of actionü Requirements (optional).1. Step 1.

ð Result of step (optional).2. Step 2.

ð Result of step (optional).ð Result of action (optional).

Typographic conventions

The following typographic conventions are used in this technical file:

1.7.3

1.7.4

1.7.5

1 Introduction


Typographic convention Purpose ExampleUPPERCASE Operating controls, switches ON/OFF[Brackets] PC keyboard [Ctrl] + [Alt]Bold Software operating controls Press Continue button…>…>… Menu paths Parameter > Control parameterItalics System messages, error mes-

sages, signalsFunction monitoring alarm trig-gered

[ Number of pages]. Cross reference [ 41].Table 4: Typographic conventions

2 Safety


Safety

General safety informationThe technical file contains detailed descriptions on the safe and proper in-stallation, connection, commissioning and monitoring of the product. Read this technical file through carefully to familiarize yourself with the

product. Particular attention should be paid to the information given in this chap-

ter.

Appropriate useIf used as intended and in compliance with the requirements and conditionsspecified in this technical file as well as the warning notices in this technicalfile and attached to the product, then the product does not present any haz-ards to people, property or the environment. This applies throughout theproduct's entire life, from delivery through installation and operation to disas-sembly and disposal.

The operational quality assurance system ensures a consistently high qualitystandard, particularly in regard to the observance of health and safety re-quirements.

The following is considered appropriate use Only operate the product in accordance with this technical file and the

agreed delivery conditions and technical data Use the equipment and special tools supplied solely for the intended

purpose and in accordance with the specifications of this technical file Use the product only with the transformer specified in the order You will find the standard valid for the product and the year of issue on

the name plate The serial numbers of on-load tap-changers and on-load tap-changer

accessories (drive, drive shaft, bevel gear, protective relay etc.) mustmatch if the on-load tap-changers and on-load tap-changer accessoriesare supplied as a set for one order.

The serial numbers of the motor-drive unit, on-load tap-changer andcontrol unit/regulation unit must match

The on-load tap-changer may be operated only in entirely oil-filled trans-formers. Please contact Maschinenfabrik Reinhausen for use in sealedtransformers with a gas cushion underneath the transformer cover

2

2.1

2.2

2 Safety


DANGER Danger of death or severe injury and damage to property andthe environment!Danger of death or severe injury and damage to property and the environ-ment due to electrical voltage, falling and/or tipping parts as well as danger-ous cramped conditions resulting from moving parts! Adherence to the following prerequisites and conditions is mandatory. Adhere to warning notices.

Since the on-load tap-changer was dimensioned as per IEC 60214-1, it canswitch currents of up to twice the value of the rated through current.

On-load tap-change operations are not to be performed during operatingconditions with higher currents.

Examples of such operating conditions are: Inrush current impulses when transformers are switched on Short circuit

The rated step voltage may be briefly exceeded by up to 10 % as long as therated through current is not exceeded. Such an operating condition can oc-cur due to overexcitation of the transformer after load shedding, for example.

The on-load tap-changer can be operated in the temperature range of thesurrounding transformer oil of between -25 ° and +105 °C and with overloadup to +115 °C in accordance with IEC 60214-1.

Inappropriate useUse is considered to be inappropriate if the product is used other than as de-scribed in the Appropriate use section. Please also note the following: Risk of explosion and fire from highly flammable or explosive gases, va-

pors, or dusts. Do not operate product in areas at risk of explosion. Risk of personal injury or damage to property if product is used in a field

of application not authorized for measuring devices in accordance withIEC 61010-2-030. The product is not suited to operation within the fieldof application of measurement category CAT IV. Only operate the prod-uct within the field of application authorized in accordance with theTechnical data chapter.

Unauthorized or inappropriate changes to the product may lead to per-sonal injury, material damage, and operational faults. Only modify prod-uct following discussion with Maschinenfabrik Reinhausen GmbH.

2.3

2 Safety


Personnel qualificationThe product is designed solely for use in electrical energy systems and facili-ties operated by appropriately trained staff. This staff comprises people whoare familiar with the installation, assembly, commissioning and operation ofsuch products.

Operator's duty of careTo prevent accidents, disruptions and damage as well as unacceptable ad-verse effects on the environment, those responsible for transport, installa-tion, operation, maintenance and disposal of the product or parts of the prod-uct must ensure the following: All warning and hazard notices are complied with. Personnel are instructed regularly in all relevant aspects of operational

safety, the operating instructions and particularly the safety instructionscontained therein.

Regulations and operating instructions for safe working as well as therelevant instructions for staff procedures in the case of accidents andfires are kept on hand at all times and are displayed in the workplacewhere applicable.

The product is only used when in a sound operational condition andsafety equipment in particular is checked regularly for operational relia-bility.

Only replacement parts, lubricants and auxiliary materials which are au-thorized by the manufacturer are used.

The specified operating conditions and requirements of the installationlocation are complied with.

All necessary devices and personal protective equipment for the specificactivity are made available.

The prescribed maintenance intervals and the relevant regulations arecomplied with.

Installation, electrical connection and commissioning of the product mayonly be carried out by qualified and trained personnel in accordancewith this technical file.

The operator must ensure appropriate use of the product.

Personal protective equipmentPersonal protective equipment must be worn during work to minimize risks tohealth. Always wear the personal protective equipment required for the job at

hand. Follow information about personal protective equipment provided in the

work area.

2.4

2.5

2.6

2 Safety


Always wear Protective clothingClose-fitting work clothing with a lowbreaking strength, with tight sleeves andwith no protruding parts. It mainly servesto protect the wearer against being caughtby moving machine parts.Do not wear any rings, necklaces or otherjewelry.Safety shoesTo protect against falling heavy objectsand slipping on slippery surfaces.

Table 5: Personal protective equipment to be worn at all times

Wear the following in spe-cial environments

Special personal protective equipmentis needed in special environments.The choice of equipment depends onthe circumstances.Safety glassesTo protect the eyes from flying parts andsplashing liquids.

Hard hatTo protect from falling and flying parts andmaterials.

Hearing protectionTo protect from hearing damage.

Table 6: Personal protective equipment to be worn in special environments

3 Product description


Product descriptionThis chapter contains an overview of the design and function of the product.

Scope of deliveryThe product is packaged with protection against moisture and is delivered asfollows: On-load tap-changer Motor-drive unit 2 x flat gasket Fixing bolts with locking washers Regulation unit/control unit with connection cable Hand wheel Technical files

The preventive auto transformers and the inspection window are not includ-ed in the scope of delivery.

Note the following information: Check the shipment for completeness on the basis of the shipping docu-

ments. Store the parts in a dry place until installation. The product must remain in its airtight, protective wrapping and may on-

ly be removed immediately before installation

You will find more information in the "Packaging, transport, and storage"[ 30] chapter.

Function descriptionOn-load tap-changers are used to adjust the desired tap of a tap winding un-der load.

The on-load tap-changer is based on the reactor switching principle anduses vacuum cells to change the tap position under load. In this process, thearc is extinguished isolated in a vacuum cell, preventing contaminants fromentering the oil.

The reactor switching principle ensures the on-load tap-changer is in a de-fined, conducting state at all times. In the event of a loss of power in thedrive, the on-load tap-changer remains in the last position that was reached.

3

3.1

3.2



Suitability

This product is designed for use in controlled distribution transformers whilethe following parameters are met and the preventive auto transformer is de-signed in accordance with the design guideline and installation manual (bothavailable upon request): Voltage in accordance with Appendix [ 135] Switching capacity in accordance with Appendix Connection diagrams in accordance with Appendix [ 128], display us-

ing 9 operating positions as an example 5, 7 or 9 operating positions Additional parameters in accordance with the Technical data [ 123]

chapter

Voltage regulation

The on-load tap-changer is equipped with a control unit/regulation unit thatenables you to have automatic voltage regulation. You can configure all theparameters you need for this purpose via the web interface.

Basic circuit arrangements of the tapped transformer withpreventive auto transformer

A preventive auto transformer (PA) enables additional operating positions foran on-load tap-changer. The output voltage corresponds to half of the volt-age between two taps of the tap winding:

UStep = 0.5 · Utap

This requires fewer taps for the same number of positions than when using ahigh-speed resistor-type tap changer. The PA limits the circulating currentduring diverter switch operation. Current flows through it at all times. A circuitof two partial impedances is selected, in which the load current flow does notcause a voltage drop in an ideal coupling. In the non-bridging position, thelosses are reduced to the copper losses of the PA windings.

The layout of the PA depends on the basic circuit arrangement operated inthe on-load tap-changer. The following is a description of the two basic "with-out equalizer winding" and "with equalizer winding" circuit arrangements(see following illustrations). The equalizer winding is an additional windingon the core of the transformer that is center tapped and has half of the num-ber of windings between the taps of the tap winding. Thus the following ap-plies for the voltage of the equalizer winding.

UEW = UStep = 0.5 · Utap

3.2.1

3.2.2

3.2.3



Designing the PA for the basic "with equalizer winding" circuit arrangementmakes it possible to reduce the size and weight of the PA.

Figure 1: Circuit without equalizer winding



Figure 2: Circuit with equalizer winding

In addition to the circuits shown, it is possible to arrange the on-load tap-changer and PA at the beginning (UA = 0) or end (UB = 0) of a winding. How-ever, the PA in use specifically has to be approved for this arrangement.

If the on-load tap-changer is not located at the end of the winding (mainwinding section B with UB ≠ 0 according to the on-load tap-changer), thenyou can integrate the equalizer winding into the main winding section. Thissimplifies the winding design since fewer winding taps are needed and theinsulation spacing between the equalizer winding and main winding section



B no longer applies. In addition, half of the number of windings in the equal-izer winding are no longer necessary, which reduces winding losses (see fol-lowing illustration).

Figure 3: Circuit with equalizer winding, simplified

Since the equalizer winding is connected opposite the tap winding, the volt-age at the PA is halved. This halves the power of the PA, while also approxi-mately halving the volume. If both selector contacts are on the same fixedcontact, a circulating current also flows when an equalizer winding is pres-ent. In this position, the losses of the transformer are greater.

In the illustrations above, both branches of the tap changer are on contact"1". The output voltage Uout is the sum of the voltages of both main windings.

Usually, the PA is measured on the basis of its rated output SPA. This con-sists of the rated current IPA and the rated voltage UPA of the PA. Taking intoaccount that the circulating current corresponds to half of the measured rat-ed through-current, the following is true for the rated current of the PA:



IPA = 0.5 · IU

The PA rated voltage depends on the basic circuit arrangement.

Without equalizerwinding

With equalizer wind-ing

PA rated voltage UPA = UTap = 2·UStep UPA = 0.5 · UTap = UStep

PA rated power SPA = UPA · IPA = UStep·IU SPA = UPA · IPA = 0.5 ·UStep · IU

Table 7: PA rated current and PA rated power

VariantsThe GRIDCON® iTAP® is available in the following variants: GRIDCON® iTAP® III 30 GRIDCON® iTAP® III 85

The two variants differ primarily with respect to their maximum permissiblerated through-current (30 A and 85 A).

The GRIDCON® iTAP® can also be supplied with various control cabinets:

Variant Dimensions Floating contactsStandard 380 x 380 mm No

400 x 500 mm Optional200 x 800 mm No

Key-operated switch 380 x 380 mm NoTable 8: Control cabinet variants

For more information, refer to the section titled Technical data [ 123].

Performance featuresThe on-load tap-changer is particularly characterized by the following prop-erties: Compact dimensions Automatic adjustment position approach Automatic checking of electronics and mechanics before each tap

change Integrated lock to prevent tap changing during the inrush current im-

pulse Significantly reduced operating costs No arcing in the insulating oil Extended lifespan of the insulating oil

3.3

3.4



Setup/modelsThe design and designation of the most important on-load tap-changer com-ponents are shown in the installation drawings in the appendix.

The on-load tap-changer has a maximum of 9 operating positions. If request-ed by the customer, either 5 or 7 operating positions are possible as an al-ternative.

Figure 4: GRIDCON® iTAP®, front view

1 Motor-drive unit 2 Terminal box3 Name plate 4 Sealing module5 Flat gasket 6 Connection contact

3.5



Figure 5: GRIDCON® iTAP®, rear view

1 Protective circuit 2 Vacuum interrupter



Figure 6: Control unit/regulation unit (standard variant 380 x 380 mm and 400 x 500mm)

1 Error signal lamp, red 2 Tap position indicator3 Status OK signal lamp, green 4 Operations counter5 Rotary switch for operating

mode6 Grounding screw

7 Cable bushing 8 Lower key (lower voltage)9 Raise key (higher voltage) 10 Lock



Figure 7: Control unit/regulation unit (standard variant 200 x 800 mm)

1 Error signal lamp, red 2 Operations counter3 Status OK signal lamp, green 4 Tap position indicator5 Rotary switch for operating

mode6 Raise key (higher voltage)

7 Lower key (lower voltage)



Figure 8: Control unit/regulation unit (key-operated switch variant)

1 Error signal lamp, red 2 Tap position indicator3 Status OK signal lamp, green 4 Operations counter5 Key-operated switch for Local/

Remote operating mode6 Grounding screw

7 Plug connector 8 Illuminated button for Man./Auto operating mode, lightsup blue in Auto operatingmode

9 Raise/lower control switch(higher or lower voltage)

10 Lock

11 Test terminal for neutral con-ductor N

12 Test terminal for conductor L3

13 Test terminal for conductor L2 14 Test terminal for conductor L1



Physical interfaces of the control unit/regulation unit

The following physical interfaces are available on the control unit/regulationunit for data transmission using the control system protocol and for access tothe web interface:

Figure 9: Interfaces of the control unit/regulation unit

1 Status LEDs 2 Ethernet (RJ45)

RJ45 Ethernet interfacePin1: Tx+Pin2: Tx-Pin3: Rx+Pin6: Rx-

Table 9: Properties of interfaces



Floating contacts (optional)

As an option, the product can be fitted with floating contacts for forwardingmessages [ 122]. The floating contacts are located in the control unit/regulation unit. Note the terminal diagram [ 140].

Figure 10: Floating contacts (highlighted in gray) in the control unit/regulation unit

4 Packaging, transport and storage


Packaging, transport and storage

PackagingThe products are sometimes supplied with a sealed packaging and some-times also dried depending on what is required.

A sealed packaging surrounds the packaged goods on all sides with plasticfoil. Products that have also been dried are identified by a yellow label on thesealed packaging.

The information in the following sections should be applied as appropriate.

Suitability

NOTICE

Property damage due to incorrectly stacked crates!Stacking the crates incorrectly can lead to damage to the packaged goods! Only stack up to 2 equally sized crates on top of one another.

The packaging is suitable for undamaged and fully functional means oftransportation in compliance with local transportation laws and regulations.

The packaged goods are packed in a stable crate. This crate ensures thatwhen in the intended transportation position the packaged goods are stabi-lized to prevent impermissible changes in position, and that none of the partstouch the loading surface of the means of transport or touch the ground afterunloading.

A sealed packaging surrounds the packaged goods on all sides with plasticfoil. The packaged goods are protected from humidity using a desiccant. Theplastic foil is bonded after the drying agent is added.

Markings

The packaging bears a signature with instructions for safe transport and cor-rect storage. The following symbols apply to the shipment of non-hazardousgoods. Adherence to these symbols is mandatory.

Protectagainst

moisture

Top Fragile Attach liftinggear here

Center ofmass

Table 10: Shipping pictograms

4

4.1

4.1.1

4.1.2



Transportation, receipt and handling of shipments

WARNING Danger of death and damage to property!Danger of death and damage to property due to tipping or falling load! Transport crate only when closed. Do not remove the mounting material used in the crate during transport. Only trained and appointed persons may select the sling gear and se-

cure the load. Do not walk under the hanging load. Use means of transport and lifting gear with a sufficient carrying capaci-

ty in accordance with the weight stated on the delivery slip.

In addition to oscillation stress and shock stress, jolts must also be expectedduring transportation. In order to prevent possible damage, avoid dropping,tipping, knocking over and colliding with the product.

If a crate tips over, falls from a certain height (e.g. when slings tear) or expe-riences an unbroken fall, damage must be expected regardless of theweight.

Every delivered shipment must be checked for the following by the recipientbefore acceptance (acknowledgment of receipt): Completeness based on the delivery slip External damage of any type.

The checks must take place after unloading when the crate or transport con-tainer can be accessed from all sides.

If external transport damage is detected on receipt of the shipment, proceedas follows: Immediately record the transport damage found in the shipping docu-

ments and have this countersigned by the carrier. In the event of severe damage, total loss or high damage costs, immedi-

ately notify the sales department at Maschinenfabrik Reinhausen andthe relevant insurance company.

After identifying damage, do not modify the condition of the shipmentfurther and retain the packaging material until an inspection decisionhas been made by the transport company or the insurance company.

Record the details of the damage immediately onsite together with thecarrier involved. This is essential for any claim for damages!

Photograph damage to packaging and packaged goods. This also ap-plies to signs of corrosion on the packaged goods due to moisture insidethe packaging (rain, snow, condensation).

NOTICE! Be absolutely sure to also check the sealed packaging. If thesealed packaging is damaged, do not under any circumstances install orcommission the packaged goods. Either dry the dried packaged goodsagain as per the operating instructions for the relevant on-load tap-

4.2

Visible damage



changer/off-circuit tap-changer or contact Maschinenfabrik ReinhausenGmbH to agree on how to proceed with drying. If this is not done, thepackaged goods may be damaged.

Name the damaged parts.

When damages are not determined until unpacking after receipt of the ship-ment (hidden damage), proceed as follows: Make the party responsible for the damage liable as soon as possible by

telephone and in writing, and prepare a damage report. Observe the time periods applicable to such actions in the respective

country. Inquire about these in good time.

With hidden damage, it is very hard to make the transportation company (orother responsible party) liable. Any insurance claims for such damages canonly be successful if relevant provisions are expressly included in the insur-ance terms and conditions.

Storage of shipments

Packaged goods dried by Maschinenfabrik Reinhausen

Upon receipt of the shipment, immediately remove the packaged goodsdried by Maschinenfabrik Reinhausen from the sealed packaging and storeair-tight in dry insulating oil until used if the packaged goods were not sup-plied in oil.

Non-dried packaged goods

Non-dried packaged goods but with a functional sealed packaging can bestored outdoors when the following conditions are complied with.

When selecting and setting up the storage location, ensure the following: Protect stored goods against moisture (flooding, water from melting

snow and ice), dirt, pests such as rats, mice, termites and so on, andagainst unauthorized access.

Store the crates on timber beams and planks as a protection against ris-ing damp and for better ventilation.

Ensure sufficient carrying capacity of the ground. Keep entrance paths free. Check stored goods at regular intervals. Also take appropriate action af-

ter storms, heavy rain or snow and so on.

Protect the packaging foil from direct sunlight so that it does not disintegrateunder the influence of UV rays, which would cause the packaging to lose itssealing function.

Hidden damage

4.3



If the product is installed more than 6 months after delivery, suitable meas-ures must be taken without delay. The following measures can be used: Correctly regenerate the drying agent and restore the sealed packaging. Unpack the packed goods and store in suitable storage space (well ven-

tilated, as dust-free as possible, humidity < 50 % where possible).

Unpacking shipments and checking for transportationdamages NOTICE! Transport the packaged crate to the place where installation

will take place. Do not open the sealed packaging until just before instal-lation. If this is not done, damage to the packaged goods may occur dueto ineffectively sealed packaging.

WARNING! When unpacking, check the condition of the packagedgoods.Secure packaged goods in an upright crate from tipping out. Ifthis is not done, the packaged goods may be damaged and serious inju-ries may result.

Check completeness of supplementary parts on the basis of the deliveryslip.

4.4

5 Installing the on-load tap-changer in the transformer


Installing the on-load tap-changer in thetransformer

NOTICE

Damage to the on-load tap-changer and transformer!The on-load tap-changer is permitted for operation only in entirely oil-filledtransformers. Please contact Maschinenfabrik Reinhausen for use in sealed trans-

formers with a gas cushion underneath the transformer cover.

NOTICE

Damage to the on-load tap-changer and transformer!Damage to on-load tap-changer and transformer due to electrical flashovercaused by insufficient distance between motor-drive unit and high-voltagebushing! When positioning the opening in the transformer cover, ensure a suffi-

cient distance from the high-voltage bushings.

The on-load tap-changer must be fitted on the transformer cover horizontal-ly with the sealing module.The surface on the underside of the transformer cover, which later makescontact with the sealing module's flat gasket, must not be painted. Only onecoating of primer is permitted.

1. Make opening for sealing module and holes for fixing screws in thetransformer cover. The measurements and position can be seen in thedimensional drawing in the appendix [ 134].

Figure 11: Opening for sealing module

5



2. Make opening for inspection window (not included in scope of delivery)in the transformer cover. The minimum diameter of the inspection win-dow's viewing glass is 25 mm. The measurements and position can beseen in the dimensional drawing in the appendix [ 134].

Figure 12: Opening for inspection window

3. Clean sealing surfaces on sealing module and underside of transformercover. Insert flat gasket in sealing module.

Figure 13: Flat gasket



NOTICE

Damage to the on-load tap-changer!Damage to the on-load tap-changer due to improper connections! Tighten bolts without warping or deforming. Gradually tighten bolts crosswise.

4. Guide on-load tap-changer from below through the opening in the trans-former cover and screw down to transformer cover.

Figure 14: Screwing down on-load tap-changer

NOTICE

Damage to the on-load tap-changer and transformer!Damage to the on-load tap-changer and transformer due to improperly car-ried out crimp connections and unacceptably high currents and voltages! Configure and install the preventive auto transformer in accordance

with the design guideline and installation manual (both available uponrequest).

Connect connecting leads without warping or deforming. Carry out crimp connections in accordance with DIN EN

60352-2:2002-10.



5. Connect on-load tap-changer with preventive auto transformer withoutwarping or deforming as shown in connection diagram provided andcrimp.

Figure 15: Connection terminals for preventive auto transformer

NOTICE

Damage to the on-load tap-changer!Damage to on-load tap-changer due to improperly carried out crimp connec-tions and connection leads. Connect connecting leads without warping or deforming. Carry out crimp connections in accordance with DIN EN

60352-2:2002-10.

6. Connect on-load tap-changer with tap winding without warping or de-forming as shown in connection diagram and crimp.

Figure 16: Connection terminals for tap winding

6 Carrying out the transformer ratio test


Carrying out the transformer ratio testCarry out a transformer ratio test before the transformer is dried.

Proceed as follows:1. Loosen hex bolts of red transport locking plate, remove transport locking

plate.

To secure the motor-drive unit to the sealing module, use the fixing boltsprovided and not the hex bolts of the transport locking plate.

Figure 17: Transport locking plate

6



2. Oil the spindle, guide rods and bevel wheel with transformer oil.

Figure 18: Spindle, guide rods and bevel wheel

1 Spindle 3 Bevel wheel2 Guide rod

3. Set provided hand wheel (accessory bag) on the drive shaft.

Figure 19: Hand wheel

NOTICE

Damage to on-load tap-changer and motor-drive unit!Damage to motor-drive unit and on-load tap-changer due to improper trans-former ratio test! Only perform tap changes on on-load tap-changer with the hand wheel. Never perform tap changes on the on-load tap-changer with a drill or a

leverage-extending tool.



4. Switch on-load tap-changer to the desired operating position (1 counter-clockwise revolution on the hand wheel).

Always check the operating position reached through the inspection windowin the transformer cover and ensure as accurate a positioning as possible.In so doing ensure that the two cam switches below the hand wheel are en-gaged.

5. Carry out the transformer ratio test in all operating positions.6. Store the hand wheel near the transformer after completing the trans-

former ratio test.

7 Measuring DC resistance on transformer


Measuring DC resistance on transformerNote the measurement scenarios listed below and the associated maximummeasured currents when measuring DC resistance on the transformer.

The measured DC current is normally restricted to 10 % of the rated currentof the measured transformer winding in order to prevent the winding fromoverheating. The current flow duration has to be limited accordingly at high-er currents.

DC resistance meas-urement in variouson-load tap-changeroperating positionswithout interruptionof measured currentduring the change ofoperating position

DC resistance meas-urement in variouson-load tap-changeroperating positionswith interruption ofmeasured currentduring the change ofoperating position(the measured cur-rent must be 0 Awhen changing oper-ating position)

Transformer tankempty

Maximum 10 A DC Maximum 50 A DC

Transformer tank filledwith insulating oil

Maximum 50 A DC Maximum 50 A DC

Table 11: Maximum permitted measured currents when measuring DC resistance ontransformer

7

8 Drying the on-load tap-changer


Drying the on-load tap-changerYou can dry the on-load tap-changer according to one of the methods de-scribed below. The drying time is determined by the transformer.

NOTICE

Damage to on-load tap-changer and motor-drive unit!Damage to the motor-drive unit and on-load tap-changer from drying! Do not dry the motor-drive unit in an autoclave. Keep the temperature of the on-load tap-changer below 135 °C while

drying. Maintain a pressure of more than 0.5 bar when using low-frequency

drying with another live on-load tap-changer present at the same time.

Potential drying methods: Vacuum-drying in an autoclave Vacuum-drying in a transformer tank Vapor-phase drying in an autoclave Vapor-phase drying in a transformer tank Low-frequency drying in an autoclave Low-frequency drying in a transformer tank

8

9 Filling transformer with oil


Filling transformer with oilFor the oil filling of the transformer, use new mineral insulating oil for trans-formers as per IEC 60296 (Specification of unused mineral insulating oils fortransformers and switchgear).

If approved by the transformer manufacturer, synthetic ester liquids as perIEC 61099 (Specification for unused synthetic organic esters for electricalpurposes) or natural ester liquids as per IEC 62770 (Specification for unusednatural esters for transformers and similar electrical equipment) can be usedas alternatives.

Contact Maschinenfabrik Reinhausen if you want to use an alternative insu-lating liquid.

Note the permitted temperature range of the transformer oil in Technical da-ta for the on-load tap-changer [ 123].

NOTICE

Damage to the on-load tap-changer!If a transformer is not completely filled with oil, the on-load tap-changer maybe damaged! Completely fill transformer with oil before starting up the on-load tap-

changer.

1. Completely fill transformer with oil.2. Take oil sample from transformer.3. Record temperature of oil sample just after sample is taken.4. Determine dielectric strength and water content at a diverter switch oil

temperature of 20 °C ± 5 °C. The dielectric strength and water contentmust comply with the limit values stated below:

Ud H2OWhen commissioningthe transformer for thefirst time

> 60 kV/2.5 mm < 12 ppm

Table 12: Limit values for mineral insulating oil (dielectric strength Ud measured in ac-cordance with IEC 60156)

9

10 Commissioning of on-load tap-changer by transformer manufacturer


Commissioning of on-load tap-changer bytransformer manufacturer

Connecting and securing motor-drive unit to on-load tap-changer1. Remove any remaining kerosene residue from the sealing module.2. Clean sealing surfaces on sealing module and underside of motor-drive

unit. Insert flat gasket in sealing module.

Figure 20: Flat gasket

3. Connect the motor-drive unit to the sealing module as indicated by themarks in the base of the sealing module and its [ 139] braided leads.The middle terminal lugs on micro-switches S80 and S81 have to re-main clear.

Figure 21: Connecting motor-drive unit

10

10.1



NOTICE

Damage to the on-load tap-changer!Damage to the on-load tap-changer due to improper connections! Tighten bolts without warping or deforming. Tighten bolts incrementally across from each other.

NOTICE

Damage to cabling!Damage to cabling due to pinching! When securing the motor-drive unit to the on-load tap-changer be sure

not to pinch the connection cable between the motor-drive unit andsealing module.

4. Secure motor-drive unit to on-load tap-changer.

To secure the motor-drive unit to the sealing module, use the fixing boltsprovided and not the hex bolts of the transport locking plate.

Figure 22: Securing motor-drive unit



5. Connect grounding screw to transformer cover with M8 cable shoe.

Figure 23: Grounding screw

Carry out trial tap-change operations each time the motor-drive unit is re-placed or removed [ 52].

Connecting control unit/regulation unit to motor-drive unitand voltage supply

WARNING Electric shockDanger of death due to electrical voltage when assembling and connectingthe device. De-energize device and system periphery and lock to prevent switching

back on again.

WARNING Electric shockDanger of death due to connection mistakes Earth device using the grounding screw on the housing.

NOTICE

Damage to device and system peripheryAn incorrectly connected device can lead to damages in the device and sys-tem periphery. Check the entire configuration before commissioning. Prior to commissioning, be sure to check the actual voltage and operat-

ing voltage.

10.2



To obtain a better overview when connecting cables, only use as manyleads as necessary.

Connecting L1, N and PE is sufficient for commissioning (in the "manualmode" operating mode).All three phases have to be connected to the transformer on the low-voltageside for testing the automatic control function.

ü Use only the specified cables for wiring. Note [ 61] cable recommen-dation.

1. Open the terminal box on the motor-drive unit and connect [ 139] thecontrol unit/regulation unit to the motor-drive unit with the supplied cableas shown in the terminal diagram provided.

2. NOTICE! Attach the cover to the terminal box, ensure that the seal hasa clean support plate and correctly screw down the terminal box. Failureto do so can allow the ingress of moisture and the motor-drive unit maybe damaged.

Figure 24: Control unit/regulation unit

3. Connect the control unit/regulation unit to the voltage supply.4. Close the miniature circuit breaker in the control unit/regulation unit.ð The Error signal lamp lights up red.



Carrying out automatic adjustmentFor commissioning, automatic adjustment of on-load tap-changer and motor-drive unit must be undertaken. This involves the motor-drive unit automati-cally switching the on-load tap-changer into tap position 1. Depending on thecontrol unit/regulation unit variant, you can undertake automatic adjustmentas described below.

Standard variant

To carry out automatic adjustment in the standard variant, proceed as fol-lows:1. Move rotary switch to manual mode (Man.) position.

Figure 25: Activating manual mode

10.3



2. Press Raise key and Lower key simultaneously for around 2 secondsuntil the green Status OK signal lamp flashes.

Figure 26: Starting automatic adjustment

ð The on-load tap-changer adjusts automatically. An audible noisewill be produced during this automatic adjustment. This is normaland does not indicate an error. As soon as the adjustment is com-plete, the signal lamp lights up green and you can activate the on-load tap-changer.



Key-operated switch variant

To carry out automatic adjustment in the key-operated switch variant, pro-ceed as follows:1. Move key-operated switch into Local position.

Figure 27: Moving key-operated switch into Local position

2. Activate manual mode (Man.).ð Illuminated button for Man./Auto operating mode does not light up.



3. Press Man./Auto illuminated button and Raise-Lower control switch atthe same time for around 2 seconds until green Status OK signal lampflashes.

Figure 29: Starting automatic adjustment

ð The on-load tap-changer adjusts automatically. An audible noisewill be produced during this automatic adjustment. This is normaland does not indicate an error. As soon as the adjustment is com-plete, the signal lamp lights up green and you can activate the on-load tap-changer.

Performing trial tap-change operationsBefore energizing the transformer, trial tap-change operations must be car-ried out to check the mechanical and electrical functions of on-load tap-changer and motor-drive unit.ü Automatic adjustment of the on-load tap-changer and motor-drive unit

has been undertaken.

10.4



1. Activate manual mode. In the standard variant this is done by movingthe rotary switch to manual mode (Man.) position. With the key-operatedswitch variant, move the key-operated switch into the Local position andset the Man./Auto illuminated button to manual mode (illuminated buttondoes not light up).


2. NOTICE! Use Raise key/Lower key (standard variant) or Raise-Lowercontrol switch (key-operated switch variant) to undertake trial tap-change operations across the entire range of settings. Maintain a delaytime of 3 seconds between two tap changes. Ensure that the tap posi-tion indicator of the on-load tap-changer (inspection window in trans-



former cover) and control unit/regulation unit match in every operatingposition. Failure to do so may result in damage to the on-load tap-changer.

Figure 31: Performing trial tap-change operations using Raise/Lower key

3. Check, in both end positions, the function of the mechanical end stop.

Check the transformer configuration in accordance with the connection dia-grams in the appendix if the tap change operation is occurring in the oppo-site direction in the "auto mode" operating mode.The behavior of the control system (lowest voltage at smallest or largest po-sition) can be adjusted accordingly using parameterization. Contact Maschi-nenfabrik Reinhausen in this regard.



Electrical high-voltage tests on the transformer

WARNING Danger of death or severe injury!Danger of death or severe injury from explosive gases under the on-loadtap-changer head cover, in the pipework system, in the oil conservator, atthe dehydrating breather opening, and from flying parts and hot oil splash-ing! Ensure that there are no naked flames, hot surfaces or sparks (for ex-

ample caused by static charging) in the immediate surroundings andthat none occur.

Ensure that the oil compartment of the on-load tap-changer is com-pletely filled with oil.

Only use conductive and grounded hoses, pipes, and pump equipmentthat are approved for flammable liquids.

Ensure that all the on-load tap-changer's safety equipment is ready foruse.

Use suitable personal protective equipment/clothing. Keep away from the danger area during the transformer test. Observe applicable fire protection regulations. Make sure that only trained technicians perform work on the transform-

er.

Every on-load tap-changer has been specially designed by the manufacturerfor the transformer in the respective purchase order and is subjected to stricttests and quality controls at the manufacturer’s factory.

However, joint operation of transformer and on-load tap-changer cannot besimulated by the manufacturer and cannot be tested on the on-load tap-changer alone.

For this reason, irregularities or malfunctions cannot be completely ruled outduring the transformer test (i.e., testing the first joint operation of transformerand on-load tap-changer).

It is absolutely mandatory that all the on-load tap-changer protective devicesprovided are ready for operation.

For this reason, it is essential that you ensure only trained, instructed expertpersonnel who are familiar with and comply with the pertinent safety andtechnical regulations, who are aware of the potential risks, and who consis-tently use the occupational safety equipment provided to prevent injury andproperty damage are assigned to perform such a transformer test.

Note the following points for the electrical high-voltage tests on the trans-former: Disconnect control unit/regulation unit before the high voltage test. Leads used for testing must be removed before the high voltage test, as

these function as antennas.

10.5



If you have any questions about possible sources of danger, consult themanufacturer before starting to test the transformer.

The electrical tests required for transformer acceptance may only be under-taken once the aforementioned work is complete.

Dielectric tests on transformer wiringNote the following points for dielectric tests on the transformer wiring:

The motor-drive unit and control unit/regulation unit are put through dielectrictests before delivery. Before the dielectric test for the transformer wiring, disconnect the mo-

tor-drive unit and control unit/regulation unit from the section to be test-ed to rule out increased component loading for those components fittedin the motor-drive unit and the control unit/regulation unit.

10.6

11 Transporting transformer to equipment manufacturer


Transporting transformer to equipmentmanufacturer

NOTICE

Damage to the on-load tap-changer!Damage to the on-load tap-changer due to incorrect positioning! Do not remove the motor-drive unit from the on-load tap-changer after

the on-load tap-changer's automatic adjustment.

1. Disconnect control unit/regulation unit to transport the transformer.2. Use the plugs provided to reseal (watertight) the control unit/regulation

unit and motor-drive unit.3. NOTICE! When the terminal box has been opened, attach cover to ter-

minal box, ensure that seal has clean base for seal and correctly screwdown terminal box.If this is not done, moisture ingress is possible andthe motor-drive unit may be damaged.


4. Transport control unit/regulation unit in MR packaging used for delivery.

11

12 Commissioning the transformer at the operating site


Commissioning the transformer at the operatingsiteBefore energizing the transformer, you must connect the control unit/regula-tion unit which is fitted in a control cabinet, and perform trial tap-change op-erations.

NOTICE

Damage to the on-load tap-changer!Damage to the on-load tap-changer due to inactive protective devices! Use shared line for the power supply (L1) and voltage measurement.

There are 3 operating modes on the control unit/regulation unit for controllingthe on-load tap-changer:

Auto mode

In auto mode, the voltage is automatically controlled in accordance with theset parameters. Further device settings cannot be changed in auto mode.

Control via remote connection

NOTICE

Damage to the control unit/regulation unitAn overvoltage at the remote inputs can result in damage to the control unit/regulation unit! Only activate remote inputs using floating contacts.

In this operating mode, commands from an external control interface areexecuted. In this case, manual operation of the Raise and Lower keys is dis-abled.

The tap position can be changed upwards and downwards using terminalsX2:8 and X2:9. The auxiliary voltage required for activation has to be tappedat terminal X3:3 (connection according to provided connection diagram).

Manual mode

In manual mode, there is no automatic control. The motor-drive unit can becontrolled via the device's operating panel. The device settings can bechanged.

Mounting control unit/regulation unitDepending on design, you have to mount the control unit/regulation unit'scontrol cabinet as follows: Mounting on a flat surface Mounting on the low-voltage busbar using device carrier (only for 200 x

800 mm control cabinet variant)

Note the description below.

12

12.1



Mounting on a flat surface

To mount the control cabinet on a flat surface, proceed as follows: Secure control cabinet to the flat surface using the fixing brackets pro-

vided for this purpose. Note dimensions of control cabinet in appendix.

Figure 33: Mounting control cabinet on a flat surface

Mounting on low-voltage busbar using device carrier

DANGER Risk of life-threatening injury due to electric shock!If the low-voltage busbar is not disconnected from the mains when the de-vice carrier is being mounted, this may result in electric shock! To mount the device carrier, disconnect the low-voltage busbar from

the mains. If the low-voltage busbar cannot be disconnected from the mains, ob-

serve national requirements for working on live equipment.



To mount the control cabinet on the low-voltage busbar, proceed as follows:1. Attach device carrier to stud bolts of low-voltage busbar with retaining

brackets and screw down.

Figure 34: Attaching device carrier to stud bolts of low-voltage busbar

1 Device carrier 2 Low-voltage busbar

Figure 35: Screwing down device carrier



2. Attach control cabinet to device carrier and screw down from inside us-ing nuts and washers.

Figure 36: Screwing down control cabinet

Connecting control unit/regulation unitThe following section describes how to make the electrical connection to thecontrol unit/regulation unit.

Cable recommendation

Please note the following recommendation from Maschinenfabrik Reinhau-sen when wiring the device.

Cable Terminal Cable type Conductor cross-sectionPower supply/voltagemeasurement

X1 Unshielded 1.5 mm² with wire end sleeve2.5 mm2 without wire end sleeve

Control cable (includ-ed in the scope of de-livery)

X2 Shielded 0.75 mm2 with 7 braided leadsMaximum exterior diameter 9mm

Table 13: Recommendation for connection cable

The cable used for the control cable must be resistant to oil and heat.

Plug connectors for key-operated switch variant

In order to connect cables to the control cabinet in the key-operated switchvariant, you will need the following plug connectors from Harting®(www.harting.com):

12.2

12.2.1



Cable Terminal Item number DescriptionPower supply/voltagemeasurement

X11e, X12e 09 33 006 2701 Han 6E-bu-sContact insert (bush) screw connectionwith wire protection, 6-pole

09 33 000 9908 Han E/D guide pin (optional)19 30 006 0446 Han 6B-gg-M25

Sleeve casing, straight M25 cable outlet19 00 000 5090alternatively:19 00 000 5190

Metal, M25, 9-16mm, IP68 cable connec-tionalternatively: Plastic

Control cable X21e 09 33 010 2601 Contact insert (pin) screw connection withwire protection, 10-pole

19 62 810 0446 Sleeve casing, straight M25 Han10EMV/B-gg-R-M25" cable outlet

19 62 000 5090 UNI HF M25 sealed screw connectionTable 14: Recommendation for plug connectors

Electromagnetic compatibility

The device has been developed in accordance with applicable EMC stan-dards. The following points must be noted in order to meet the EMC stan-dards.

Wiring requirement of installation site

Note the following when selecting the installation site: The system's overvoltage protection must be effective. The system's ground connection must comply with all technical regula-

tions. Separate system parts must be joined by a potential equalization.

Wiring requirement of operating site

Note the following when wiring the operating site: Do not route lines which cause interference (for example power lines)

and lines susceptible to interference (for example signal lines) in thesame cable duct.

Maintain a gap of at least 100 mm between lines causing interferenceand those susceptible to interference.

12.2.2

12.2.2.1

12.2.2.2



Figure 37: Recommended wiring

1 Cable duct for lines causinginterference

3 Cable duct for lines suscepti-ble to interference

2 Interference-causing line (forexample power line)

4 Line susceptible to interfer-ence (for example signal line)

The equipment may only be connected to circuits with an external isolat-ing device for all poles so the equipment can be fully de-energized if re-quired (service, maintenance etc.).

Reserve lines must be grounded at both ends. The device must never be connected using multi-pin collective cables. Signal lines must be routed in a shielded cable. The individual conductors (outgoing conductors/return conductors) in

the cable core must be twisted in pairs. The screen must be connected across the entire surface (360º).

NOTICE

Damage to motor-drive unit or control cabinet!Circulating currents requiring potential equalization can cause damage dueto grounding loops! Only attach shielding to one point if motor-drive unit and control cabinet

have different potentials.



Figure 38: Shielding

Wiring requirement in control cabinet

Note the following when wiring the control cabinet: The control cabinet where the device will be installed must be prepared

in accordance with EMC requirements:– Functional division of control cabinet (physical separation)– Constant potential equalization (all metal parts are joined)– Line routing in accordance with EMC requirements (separation of

lines which cause interference and those susceptible to interfer-ence)

– Optimum shielding (metal housing)– Overvoltage protection (lightning protection)– Collective grounding (main grounding rail)– Cable bushings in accordance with EMC requirements– Any contactor coils present must be interconnected

Signal lines and power lines/switching lines must be laid in separate ca-ble ducts.

The device must be grounded at the screw provided using a groundstrap (cross-section of at least 8 mm²).

Figure 39: Grounding screw

12.2.2.3



Connecting control unit/regulation unit to motor-drive unit


back on again.


NOTICE


ing voltage.


NOTICE

Damage to motor-drive unit or control cabinet!Circulating currents requiring potential equalization can cause damage dueto grounding loops! Only attach shielding to one point if motor-drive unit and control cabinet

have different potentials.

1. Fit control cabinet at intended location with integrated control unit/regu-lation unit.

NOTICE

Damage to the on-load tap-changer!Damage to the on-load tap-changer due to incorrect positioning! Carry out [ 52] automatic adjustment of the on-load tap-changer

again if the motor-drive unit was removed from the on-load tap-changerfor transport.

2. Open terminal box on motor-drive unit and connect [ 139] control unit/regulation unit to motor-drive unit with supplied cable as shown in theterminal diagram provided.

12.2.3



3. NOTICE! Attach cover to terminal box, ensure that seal has clean baseand correctly screw down terminal box. If this is not done, moisture in-gress is possible and the motor-drive unit may be damaged.


4. Close the circuit breaker in the control unit/regulation unit.

Connecting control unit/regulation unit to voltage supply


back on again.


NOTICE


ing voltage.

12.2.4




ü Use only the specified cables for wiring. Note cable recommendation[ 61].

ü Note connection diagram.1. Connect the control unit/regulation unit to the voltage supply on low-volt-

age side.2. Establish the three-phase connection. If N and PE are routed separate-

ly, it is important to ensure that PE is routed as a collective groundingwithin the device.

3. Fuse supply cables accordingly.

The equipment may only be connected to circuits with an external isolatingdevice for all poles so the equipment can be fully de-energized if required(service, maintenance etc.).

The electrical voltage has to be supplied by the controlled transformer itself.

4. Close control unit/regulation unit.5. Switch on medium voltage (transformer is idle).

ð Control unit/regulation unit is supplied with power and starts by it-self. The Status OK signal lamp lights up green if the control unit/regulation unit has already been commissioned by the transformermanufacturer. If the signal lamp lights up red then the control unit/regulation unit has not yet been put into operation. Therefore, it hasto be [ 52] adjusted on site. Only carry out "automatic adjustment"with an open busbar on the low-voltage side since the on-load tap-changer moves through the entire regulating range and this can re-sult in excessive voltage deviations for consumers.



Performing trial tap-change operationsBefore switching on the low-voltage busbar, trial tap-change operations mustbe carried out to check the mechanical and electrical functions of on-loadtap-changer and motor-drive unit.1. Activate manual mode. In the standard variant this is done by moving

the rotary switch to manual mode (Man.) position. With the key-operatedswitch variant, move the key-operated switch into the Local position andset the Man./Auto illuminated button to manual mode (illuminated buttondoes not light up).


12.3



2. Use Raise key/Lower key to undertake trial tap-change operationsacross the entire range of settings. Maintain a delay time of 3 secondsbetween two tap changes.

Figure 42: Performing trial tap-change operations using Raise/Lower key

3. Check, in both end positions, the function of the mechanical end stop.

Checking automatic voltage regulationTo check the automatic voltage regulation, proceed as follows:1. Measure voltage on low-voltage side of transformer.2. Activate manual mode. In the standard variant this is done by moving


3. Use Raise/Lower key (standard variant) or Raise/Lower control switch(key-operated variant) to perform tap changes until the measured volt-age is outside the range of the set bandwidth (desired voltage value ±bandwidth).

12.4



4. Activate auto mode. This is done with the standard variant by moving ro-tary switch to auto mode (Auto) position. With the key-operated switchvariant, move the Man./Auto illuminated button to auto mode (illuminat-ed button lights up).ð After the delay time, the on-load tap-changer moves back into the

range of the set bandwidth.5. Activate manual mode. In the standard variant this is done by moving


ð Automatic voltage regulation is checked.

If the automatic voltage regulation isn't working as you would like, check theset parameters of the voltage regulator (e.g. desired value, bandwidth, de-lay time).

Transmission ratio

If necessary, you can check the transmission ratios of the individual tap posi-tions. To do so, proceed as follows:1. Activate manual mode. In the standard variant this is done by moving


2. Approach all tap positions one after another and measure the voltage onthe low-voltage side of the transformer in each position.

3. Compare voltages with details on the transformer name plate.

Switching on the low-voltage busbarOnce you have connected the control unit/regulation unit and undertaken tri-al tap-change operations, you can commission the low-voltage busbar as fol-lows:1. Move on-load tap-changer to mid-position.

It may be a good idea to move the on-load tap-changer into a position otherthan the mid-position. This allows you to minimize voltage differences be-tween the connecting grids and therefore the inrush current impulse.

12.5



2. Use rotary switch or button to set desired operating mode on the controlunit/regulation unit (auto mode, manual mode, control via remote con-nection).

Figure 43: Rotary switch for operating mode (standard variant)



Figure 44: Rotary switch for operating mode (key-operated switch variant)

Check the transformer configuration in accordance with the connection dia-grams in the appendix if the tap change operation is occurring in the oppo-site direction in the "auto mode" operating mode.The behavior of the control system (lowest voltage at smallest or largest po-sition) can be adjusted accordingly using parameterization. Contact Maschi-nenfabrik Reinhausen in this regard.

3. Switch on the low-voltage busbar.

NOTICE

Damage to the on-load tap-changer and transformer!An inrush current impulse which has not fully subsided can damage the on-load tap-changer and transformer in the event of an on-load tap changingoperation! Once the transformer has been switched on, ensure that the inrush cur-

rent impulse has fully subsided before undertaking an on-load tapchanging operation. The inrush current impulses are usually a multipleof the transformer rated current and can overload the on-load tap-changer during the diverter switch operation.

After the transformer has been switched on and the inrush current impulsehas subsided, on-load tap-changer tap-change operations can be performedboth under no load and load conditions.

13 Configuring the control unit/regulation unit


Configuring the control unit/regulation unitThe following section describes how to configure the control unit/regulationunit.

Calling up the web interfaceYou can use the web interface to configure the control unit/regulation unitusing a PC and to view additional information about the product and thepresent measurement values. To call up the web interface, you must estab-lish a connection via the RJ45 interface (Ethernet) of the control unit/regula-tion unit.

Note that the PC and the control unit have to be in the same subnet. Thefactory setting for the control unit's network address is 192.168.0.1.

To call up the web interface, proceed as follows:ü The PC is connected to the control unit/regulation unit over Ethernet and

is in the same subnet.1. Start the web browser and call up the address http://

192.168.0.1/plc/webvisu.htm.ð The web interface is started.

Figure 45: Web interface of the GRIDCON® iTAP®

2. Click on the desired language (e.g. English) in the top left if necessaryto set the language for the web interface.

13

13.1



Setting the operating responsesThe following parameters let you set the operating responses of the controlunit/regulation unit. Skip intermediate positions: If you enable this parameter, the control

unit/regulation unit skips the intermediate positions in auto mode (tappositions 2, 4, 6, 8) and switches to the next stationary tap position aftera set delay time (1, 3, 5, 7, 9). This prevents any losses that may occurat the intermediate positions.

Delay time when skipping: The time the on-load tap-changer spends atan intermediate position if the "Skip intermediate positions" function isenabled.

Min./Max. perm. tap position: Minimum and maximum permitted tap po-sition to which the control unit/regulation unit can move.

Current measurement: This parameter lets you enable current measure-ment if you have connected a current transformer. Current measure-ment is used for the "Current-based desired voltage value" and "Power-based target voltage value" control functions.

Current transformer factor: This parameter lets you set the transmissionratio of your current transformer.

Overvoltage blocking/undervoltage blocking: The overvoltage blockingand undervoltage blocking limit values are used to block tap-change op-erations when the control deviations are very large. If the set limit valuesare exceeded, no switching commands are issued to the motor-driveunit during automatic voltage regulation.

Enable the local voltage regulator for SCADA failure in "Remote" operat-ing mode: If you activate this parameter, the device activates the localvoltage regulator with the control algorithm selected at the respectivepoint in time if transmission over SCADA happens to fail.

Control algorithm selection: This parameter lets you select the controlalgorithm. For more information, refer to the information in the section ti-tled Configuring voltage regulation [ 76].

Proceed as follows to set the operating response:1. Call up the web interface [ 73].

Figure 46: Setting the operating response

2. Set the desired parameters.

13.2



Configuring the remote sensors

You can use up to 4 remote sensors. To use the sensors, you have to setthe following parameters for each: Enable sensor: This parameter lets you enable or disable the sensor.

Note that the sensors have to be enabled in ascending order. If you dis-able sensor 2, for example, sensors 3 and 4 are also disabled.

Name: This parameter lets you set the name for a sensor. You can en-ter up to 10 alphanumeric characters (0 to 9, A to Z).

IP address ASDU address (byte 1 and byte 2) Timeout interval: The timeout interval for receiving a SCADA telegram

for the remote sensor. If the set time is exceeded, the status of the sen-sor changes to Error (red).

In addition, you can see the current status of the sensor: OK status (gray): Sensor is not active. OK status (green): There is a connection to the sensor. OK (flashing green): Data is being transmitted. Error status (red): Timeout interval exceeded.

Proceed as follows to configure the remote sensors:1. Call up the web interface [ 73].2. Select the Configure remote sensors submenu.

Figure 47: Configure remote sensors

3. Set the desired parameters.



4. In order to apply the modified parameters, trigger the built-in miniaturecircuit breaker to de-energize the control system. Wait approximately 10seconds, then close the miniature circuit breaker again.

Configuring voltage regulationYou can carry out voltage regulation using one of the following methods: Static desired value with measurement at the busbar Static desired value and measurement using remote sensors Current-dependent desired value adjustment Power-dependent desired value adjustment Multi-sensor evaluation

Busbar

In this control algorithm, the voltage is measured at the busbar and a staticdesired value is used for voltage regulation.

You can set the following control parameters: Desired voltage value Bandwidth Delay time T1

If the measured voltage Uactual is within the set bandwidth , no controlcommands are issued to the motor-drive unit for the tap-change operation.Control commands will also not be issued to the motor-drive unit if the meas-ured voltage returns to the tolerance bandwidth within the set delay timeT1 . However, if the measured voltage deviates from the set bandwidth for

13.3

13.3.1



a long period , a tap-change command occurs after expiration of theset delay time T1. The on-load tap-changer carries out a tap-change in apositive or negative direction to return to the tolerance bandwidth.

Figure 48: Behavior of the control function with delay time T1

1 + B: Upper limit 4 Set delay time T12 Udesired: Desired value 5 Uactual: Measured voltage3 - B: Lower limit 6 B: Bandwidth rangeA Delay time T1 starts. B Uactual is within the bandwidth

before delay time T1 is com-plete.

C Delay time T1 starts. D Tap-change operation is initi-ated.

Limit value response

You can also set the following parameters for the limit value response: Threshold for high-speed return/high-speed raise tap-change operation Preferred exceptional situation

The high-speed return/high-speed raise tap change mode is used to quicklycompensate for large control deviations. If the set threshold value is exceed-ed for more than 2 seconds, the control unit/regulation unit then triggers alower/raise tap change operation without waiting for delay time T1.

The voltage is regulated in three phases. As soon as one of the 3 phasesleaves the permitted bandwidth, the voltage regulator triggers a tap-changeoperation once the delay time has elapsed. In exceptional cases—if there isa significant spread in the voltage of individual phases—this could result inthe voltage of one phase returning to the permitted bandwidth after a tap-change operation but the voltage of another phase leaving the permitted

High-speed return/high-speed raise tap-change

operation

Preferred exceptionalsituation



bandwidth. In order to prevent hunting in the regulating system, you have touse the "Preferred exceptional situation" parameter to define how the deviceis to react in this case: U too low: A tap-change operation is only triggered once the respective

forecast voltage of the 3 phases is less than the upper limit of the band-width after a tap-change operation. The voltage of individual phases canbe less than the permitted bandwidth.

U too high: A tap-change operation is only triggered once the respectiveforecast voltage of the 3 phases is greater than the lower limit of thebandwidth after a tap-change operation. The voltage of individual phas-es can be greater than the permitted bandwidth.

Configuring voltage regulation

To configure voltage regulation, proceed as follows:1. Call up the web interface [ 73].2. Set the desired values in the Control parameters window.

Figure 49: Control parameters

Remote sensor

In this control algorithm, the voltage is measured by a remote sensor and astatic desired value is used for voltage regulation. You can use one of themaximum of 4 connected sensors to regulate the voltage.

You can set the following control parameters: Desired voltage value Bandwidth Delay time T1


13.3.2













operation







If you enable the "Use 'Voltage magnitude of busbar' control algorithm in theevent of a communication failure" parameter, the device uses the measure-ment value from the busbar to regulate the voltage in the event of a commu-nication failure. The set timeout interval on each sensor is the critical factorfor this option.


To configure voltage regulation, proceed as follows:1. Call up the web interface [ 73].2. Select the remote sensor to be used for voltage measurement.3. Set the desired values in the Control parameters window.


Current-dependent desired value adjustment

In this control algorithm, the voltage is measured at the busbar and a varia-ble desired value is used for voltage regulation. The desired value is adjust-ed according to the current measured on the busbar.

You can set the following control parameters: Desired voltage values Umin, U0, Umax

Current values Imin, I0, Imax

Bandwidth Delay time T1

Behavior forcommunication failure

13.3.3



Depending on the measured positive or negative current on all three phases(I1 + I2 + I3), the desired value calculation is based on 2 linear equations (seeexample in the following illustration).

Figure 52: Current-dependent desired value adjustment

Ure

f

Desired value I0 Current point I0

I1+I2+

I3

Sum of the measured currents Um

in

Minimum desired value

Imin Current for minimum desiredvalue

Um

ax

Maximum desired value

Ima

x

Current for maximum desiredvalue

U0 Desired value at I0














operation










Power-dependent desired value adjustment

In this control algorithm, the voltage is measured at the busbar and a varia-ble desired value is used for voltage regulation. The desired value is adjust-ed according to the power measured on the busbar.

You can set the following control parameters: Desired voltage values Umin, U0, Umax

Power values Pmin, P0, Pmax

Bandwidth Delay time T1

13.3.4



Depending on the measured positive or negative power on all three phases(P1 + P2 + P3), the desired value calculation is based on 2 linear equations(see example in the following illustration).

Figure 55: Power-dependent desired value adjustment

Ure

f

Desired value P0 Power point P0

I1+I2+

I3

Sum of the measured currents Um

in

Minimum desired value

Pmi

n

Power at minimum desiredvalue

Um

ax

Maximum desired value

Pm

ax

Power at maximum desiredvalue

U0 Desired value for P0














operation










Multi-sensor

In this control algorithm, the voltage is measured at the busbar as well as atup to 4 additional sensors. The device predicts the voltages at the individualmeasuring points (sensor and busbar) and uses them to derive the optimaltap position where there is no or the smallest possible limit value violation atthe measuring points.

You can set the following parameters: Desired voltage value ideally present at every measuring point Minimum/maximum permitted voltage Low-voltage step voltage: Voltage difference between the tap positions

of the transformer on the low-voltage side Tap position –: Permitted tap positions in negative direction, starting

from the mid-position (Pos. 5) Tap position +: Permitted tap positions in positive direction, starting from

the mid-position (Pos. 5) Delay time Weighting

13.3.5



– None: Voltage measurement on the busbar is not taken into account– Simple: Simple weighting of the voltage on the busbar– Weighted: n-times weighting of the voltage on the busbar corre-

sponding to the number (n) of sensors


You can also set the following parameters for the limit value response: Preferred exceptional situation

The voltage is regulated in three phases. As soon as one of the 3 phasesleaves the permitted bandwidth, the voltage regulator triggers a tap-changeoperation once the delay time has elapsed. In exceptional cases—if there isa significant spread in the voltage of individual phases—this could result inthe voltage of one phase returning to the permitted bandwidth after a tap-change operation but the voltage of another phase leaving the permittedbandwidth. In order to prevent hunting in the regulating system, you have touse the "Preferred exceptional situation" parameter to define how the deviceis to react in this case: U too low: A tap-change operation is only triggered once the respective



If you enable the "Use 'Voltage magnitude of busbar' control algorithm in theevent of a communication failure" parameter, the device uses the measure-ment value from the busbar to regulate the voltage in the event of a commu-nication failure. The set timeout interval on each sensor is the critical factorfor this option. As soon as a sensor has failed, the device uses the busbarvoltage.


To configure voltage regulation, proceed as follows:1. Call up the web interface [ 73].


Behavior forcommunication failure



2. Set the desired values in the Control parameters window.


Configuring the connection to the control systemThis section describes the implementation of the IEC 60870-5-104 andMODBUS TCP (optional) control system protocols and how you can config-ure the control unit/regulation unit.

You can set the following parameters: Communication protocol: Select whether IEC 60870-5-104 or MODBUS

TCP (optional) is to be active. SCADA timeout interval: During remote operation, the control unit/regu-

lation unit expects to receive the SCADA remote control telegram beforethe set timeout interval has passed. If the time is exceeded, the controlunit/regulation unit switches to auto mode.

Overvoltage/undervoltage warning: The overvoltage warning and under-voltage warning limit values are used to pass on notifications when limitvalues are exceeded. If the set limit values are exceeded, the controlunit/regulation unit transmits an event message via the control system.A limit value violation is indicated by a red box on the interface.

To set the control system parameters, proceed as follows:1. Call up the web interface [ 73].

Figure 59: SCADA

2. In the SCADA window, click on the parameter value to be changed.ð An input screen appears.

3. Using the corresponding buttons, enter the desired parameter value andconfirm using the OK button.

ð The new parameter value is set.

13.4



You can configure the network for the control system connection in the SCA-DA detail settings submenu. You can set the following parameters: IP address Subnet mask Gateway ASDU address

Proceed as follows to modify the detail settings:1. Call up the web interface [ 73].2. Click on SCADA detail settings.

Figure 60: Detail settings for SCADA

3. Set the desired parameters.4. Select the Refresh button to save the modified parameters.5. In order to apply the modified parameters, trigger the built-in miniature

circuit breaker to de-energize the control system. Wait approximately 10seconds, then close the miniature circuit breaker again.

The voltage for the transformer is not automatically regulated while the con-trol unit is deactivated.

Implementation of the control system protocols

Observe the information for implementing the control system protocols in thefollowing sections.

Protocol specification

The voltage regulator provides a section of commands and messages fromthe IEC 60870-5-104 and MODBUS TCP (optional) interface protocols forcommunication. Commands are transmitted directly (direct command trans-mission), the option of "Select and execute" (select and execute command)is not available.

IEC 60870-5-104 message structure

Note the following information about the message structure and type code.

Detail settings for SCADA

13.4.1

13.4.1.1



Message structure

The following message structure is used:

ASDU field Length DescriptionASDU address 2 bytes Can be set on deviceInformation object ad-dress

3 bytes 1st byte = Information number 1stoctet (corresponds to function type)2nd byte = Information number 2ndoctet3rd byte = Information number 3rdoctet

Origin address 1 byte Value = 0Connection layer 1 byte Asymmetric

value = 1Table 15: Message structure

Type code for IEC 60870-5-104

The following type codes are used: 30 = individual message with time stamp 32 = tap position message with time stamp 35 = measured value scaled with time stamp 36 = measured value, floating-point number with time stamp 45 = single command 46 = double command 47 = step-by-step adjustment command 49 = desired value set command for scaled value 50 = desired value set command 100 = general query; queries all of the information objects on a station 103 = time synchronization every 10 minutes

IEC 60870-5-104 data points

The data points of the protocol are described in the following section.

Control direction (commands)

The following data points have the properties stated below: Byte 2 information number = 0 Byte 3 information number = 0

13.4.2

13.4.2.1



Typecode

Internal Byte 1informa-tionnumber

Description

47 47_1 114 Only in "Remote" operating mode: 2 = raise switching, 1 = lowerswitching

50 50_1 115 Set overvoltage event message threshold [V]50 50_2 116 Set undervoltage event message threshold [V]50 50_3 117 Set overvoltage blocking threshold [V]50 50_4 118 Set undervoltage blocking threshold [V]46 46_1 111 Set release operating response for internal voltage control algo-

rithm if communication fails in remote operating mode (1: on, 2: off)45 45_2 100 Set operating response for control algorithm for fixed desired volt-

age value of busbar (1: on)45 45_3 101 Set operating response for control algorithm for fixed desired volt-

age value of remote sensor (1: on)45 45_4 102 Set operating response for control algorithm for current-dependent

desired voltage value of busbar (1: on) f[I]45 45_5 103 Set operating response for control algorithm for power-dependent

desired voltage value of busbar (1: on) f[P]45 45_6 104 Set operating response for control algorithm for multi-sensor (1: on)45 45_13 105 This telegram triggers SCADA monitoring; if this telegram is not re-

ceived for T>SCADA timeout, the device switches to automatic reg-ulation (1: on)

46 46_3 113 For remote control:Manual=2Auto=1

Control algorithm: Static desired value with measurement at the busbar50 50_5 119 Set desired voltage value [V]50 50_6 120 Set bandwidth [V]50 50_7 121 Set delay time [sec]50 50_8 122 Set threshold for high-speed return [V]50 50_9 123 Set threshold for high-speed raise tap-change operation [V]45 45_8 106 Set operating response for voltage too low preferred exceptional

situation (1: on)45 45_9 107 Set operating response for voltage too high preferred exceptional

situation (1: on)Control algorithm: Static desired value and measurement using remote sensors50 50_5 119 Set desired voltage value [V]50 50_6 120 Set bandwidth [V]50 50_7 121 Set delay time [sec]50 50_8 122 Set threshold for high-speed return [V]50 50_9 123 Set threshold for high-speed raise tap-change operation [V]



Typecode


Description

49 49_21 135 Selection of remote sensor for interface display and L1-L3 display36_16-241. Busbar2. Remote sensor 13. Remote sensor 24. Remote sensor 35. Remote sensor 4

49 49_22 136 Selection of remote sensor for regulation 36_7-152. Remote sensor 13. Remote sensor 24. Remote sensor 35. Remote sensor 4

46 46_2 112 Set release operating response for control algorithm for fixed de-sired voltage value of busbar if communication with the sensor fails(1: on, 2: off)

45 45_8 106 Set operating response for voltage too low preferred exceptionalsituation (1: on)

45 45_9 107 Set operating response for voltage too high preferred exceptionalsituation (1: on)

Control algorithm: Current-dependent desired value adjustment50 50_10 124 Set desired voltage value at Imin [V]50 50_11 125 Set desired voltage value at Io [V]50 50_12 126 Set desired voltage value at Imax [V]50 50_13 127 Set Imin [A]50 50_14 128 Set Io [A]50 50_15 129 Set Imax [A]50 50_6 120 Set bandwidth [V]50 50_7 121 Set delay time [sec]50 50_8 122 Set threshold for high-speed return [V]50 50_9 123 Set threshold for high-speed raise tap-change operation [V]45 45_8 106 Set operating response for voltage too low preferred exceptional


situation (1: on)Control algorithm: Power-dependent desired value adjustment50 50_10 124 Set desired voltage value at Pmin [V]50 50_11 125 Set desired voltage value at Po [V]50 50_12 126 Set desired voltage value at Pmax [V]



Typecode


Description

50 50_13 127 Set Pmin [kW]50 50_14 128 Set Po [kW]50 50_15 129 Set Pmax [kW]50 50_6 120 Set bandwidth [V]50 50_7 121 Set delay time [sec]50 50_8 122 Set threshold for high-speed return [V]50 50_9 123 Set threshold for high-speed raise tap-change operation [V]45 45_8 106 Set operating response for voltage too low preferred exceptional


situation (1: on)Control algorithm: Multi-sensor evaluation50 50_5 119 Set desired voltage value [V]50 50_16 130 Set minimum voltage [V]50 50_17 131 Set maximum voltage [V]50 50_18 132 Set low-voltage side step voltage [V]49 49_19 133 Set number of "+" steps49 49_20 134 Set number of "-" steps50 50_7 121 Set delay time [sec]46 46_2 112 Set release operating response for control algorithm for fixed de-

sired voltage value of busbar if communication with the sensor fails(1: on, 2: off)

45 45_8 106 Set operating response for voltage too low preferred exceptionalsituation (1: on)

45 45_9 107 Set operating response for voltage too high preferred exceptionalsituation (1: on)

45 45_10 108 Set operating response for disregarding the busbar (1: on)45 45_11 109 Set operating response for simple consideration of the busbar (1:

on)45 45_12 110 Set operating response for weighted consideration of the busbar (1:

on)Table 16: Data points in control direction

Monitoring direction (messages)

The following data points have the properties stated below: Byte 2 information number = 0 Byte 3 information number = 0

13.4.2.2



Typecode


Description

36 36_1 38 Serial number35 35_2 39 Number of tap positions in the transformer configuration (5, 7, 9)30 30_1 1 Manual operating mode (1: on, 0: off)30 30_2 2 Auto operating mode (1: on, 0: off)30 30_3 3 Remote operating mode (1: on, 0: off)32 32_1 37 Current tap position (tap 1 to 5 / 7 / 9)36 36_3 40 Operations counter30 30_4 4 Raise tap-change operation start event message (1: on, 0: off)30 30_5 5 Lower tap-change operation start event message (1: on, 0: off)30 30_6 6 L1 overvoltage event message (1: on, 0: off)30 30_7 7 L1 undervoltage event message (1: on, 0: off)30 30_8 8 L2 overvoltage event message (1: on, 0: off)30 30_9 9 L2 undervoltage event message (1: on, 0: off)30 30_10 10 L3 overvoltage event message (1: on, 0: off)30 30_11 11 L3 undervoltage event message (1: on, 0: off)30 30_28 28 Voltage blocking event message (1: on, 0: off)30 30_12 12 Error event message (1: on, 0: off)36 36_4 41 Bitwise error type36 36_5 42 Overvoltage blocking threshold [V]36 36_6 43 Undervoltage blocking threshold [V]36 36_47 84 Overvoltage warning threshold [V]36 36_48 85 Undervoltage warning threshold [V]36 36_7 44 L1 voltage value (regulation) [V]36 36_8 45 L2 voltage magnitude (regulation) [V]36 36_9 46 L3 voltage magnitude (regulation) [V]36 36_10 47 L1 current magnitude (regulation) [A]36 36_11 48 L2 current magnitude (regulation) [A]36 36_12 49 L3 current magnitude (regulation) [A]36 36_13 50 L1 cos(phi) (regulation)36 36_14 51 L2 cos(phi) (regulation)36 36_15 52 L3 cos(phi) (regulation)36 36_16 53 L1 voltage magnitude (display) [V]36 36_17 54 L2 voltage magnitude (display) [V]36 36_18 55 L3 voltage magnitude (display) [V]36 36_19 56 L1 current magnitude (display) [A]36 36_20 57 L2 current magnitude (display) [A]36 36_21 58 L3 current magnitude (display) [A]



Typecode


Description

36 36_22 59 L1 cos(phi) (display)36 36_23 60 L2 cos(phi) (display)36 36_24 61 L3 cos(phi) (display)30 30_13 13 Operating response for skipping intermediate positions (1: on, 0:

off)36 36_25 62 Time delay [s] when skipping intermediate positions35 35_26 63 Lowest permissible tap position35 35_27 64 Highest permissible tap position30 30_14 14 Operating response for voltage measurement (1: on, 0: off)36 36_28 65 Current transformer factor (measurement sensor)30 30_15 15 Release operating response for internal voltage control algorithm if

communication fails in remote operating mode (1: on, 0: off)30 30_29 29 Operating response for sensor 1 activated (1: on, 0: off)30 30_30 30 Sensor 1 error event message (1: on, 0: off)30 30_31 31 Operating response for sensor 2 activated (1: on, 0: off)30 30_32 32 Sensor 2 error event message (1: on, 0: off)30 30_33 33 Operating response for sensor 3 activated (1: on, 0: off)30 30_34 34 Sensor 3 error event message (1: on, 0: off)30 30_35 35 Operating response for sensor 4 activated (1: on, 0: off)30 30_36 36 Sensor 4 error event message (1: on, 0: off)30 30_16 16 Operating response for control algorithm for fixed desired voltage

value of busbar (1: on, 0: off)30 30_17 17 Operating response for control algorithm for fixed desired voltage

value of remote sensor (1: on, 0: off)30 30_18 18 Operating response for control algorithm for current-dependent de-

sired voltage value of busbar (1: on, 0: off)30 30_19 19 Operating response for control algorithm for power-dependent de-

sired voltage value of busbar (1: on, 0: off)30 30_20 20 Operating response for control algorithm for multi-sensor (1: on, 0:

off)30 30_27 27 Status manual=0/automatic voltage regulation=1 in the regulatorControl algorithm: Static desired value with measurement at the busbar36 36_29 66 Desired voltage value [V]36 36_30 67 Bandwidth [V]36 36_31 68 Delay time [s]36 36_32 69 Threshold for high-speed return [V]36 36_33 70 Threshold for high-speed raise tap-change operation [V]30 30_21 21 Operating response for voltage too low preferred exceptional situa-

tion (1: on; 0: off)



Typecode


Description

30 30_22 22 Operating response for voltage too high preferred exceptional situa-tion (1: on; 0: off)

Control algorithm: Static desired value and measurement using remote sensors36 36_30 67 Bandwidth [V]36 36_31 68 Delay time [s]36 36_32 69 Threshold for high-speed return [V]36 36_33 70 Threshold for high-speed raise tap-change operation [V]35 35_45 82 Selection display for sensor display for display 104 36_16-24

1. Busbar2. Remote sensor 13. Remote sensor 24. Remote sensor 35. Remote sensor 4

35 35_46 83 Selection display of remote sensor for regulation 36_7-152. Remote sensor 13. Remote sensor 24. Remote sensor 35. Remote sensor 4

30 30_26 26 Release operating response for control algorithm for fixed desiredvoltage value of busbar if communication with the sensor fails (1:on, 0: off)

30 30_21 21 Operating response for voltage too low preferred exceptional situa-tion (1: on; 0: off)


Control algorithm: Current-dependent desired value adjustment36 36_29 66 Resulting desired voltage value [V]36 36_34 71 Desired voltage value at Imin [V]36 36_35 72 Desired voltage value at Io [V]36 36_36 73 Desired voltage value at Imax [V]36 36_37 74 Imin [A]36 36_38 75 Io [A]36 36_39 76 Imax [A]36 36_30 67 Bandwidth [V]36 36_31 68 Delay time [s]36 36_32 69 Threshold for high-speed return [V]36 36_33 70 Threshold for high-speed raise tap-change operation [V]



Typecode


Description

30 30_21 21 Operating response for voltage too low preferred exceptional situa-tion (1: on; 0: off)


Control algorithm: Power-dependent desired value adjustment36 36_29 66 Resulting desired voltage value [V]36 36_34 71 Desired voltage value at Pmin [V]36 36_35 72 Desired voltage value at Po [V]36 36_36 73 Desired voltage value at Pmax [V]36 36_37 74 Pmin [kW]36 36_38 75 Po [kW]36 36_39 76 Pmax [kW]36 36_30 67 Bandwidth [V]36 36_31 68 Delay time [s]36 36_32 69 Threshold for high-speed return [V]36 36_33 70 Threshold for high-speed raise tap-change operation [V]30 30_21 21 Operating response for voltage too low preferred exceptional situa-

tion (1: on; 0: off)30 30_22 22 Operating response for voltage too high preferred exceptional situa-

tion (1: on; 0: off)Control algorithm: Multi-sensor evaluation36 36_29 66 Desired voltage value [V]36 36_40 77 Minimum voltage [V]36 36_41 78 Maximum voltage [V]36 36_42 79 Low-voltage side step voltage [V]35 35_43 80 Number of "-" steps35 35_44 81 Number of "-" steps36 36_31 68 Delay time [s]30 30_21 21 Operating response for voltage too low preferred exceptional situa-

tion (1: on; 0: off)30 30_22 22 Operating response for voltage too high preferred exceptional situa-

tion (1: on; 0: off)30 30_23 23 Operating response for disregarding the busbar (1: on; 0: off)30 30_24 24 Operating response for simple consideration of the busbar (1: on; 0:

off)30 30_25 25 Operating response for weighted consideration of the busbar (1: on;

0: off)



Typecode


Description

30 30_26 26 Release operating response for control algorithm for fixed desiredvoltage value of busbar if communication with the sensor fails (1:on, 0: off)

Table 17: Data points in monitoring direction

Remote sensors

Typecode


Description

Remote sensor 1ASS1 ASS1_1 10 L1 phase voltageASS1 ASS1_2 11 L2 phase voltageASS1 ASS1_3 12 L3 phase voltageASS1 ASS1_4 13 L1 phase cosine phiASS1 ASS1_5 14 L2 phase cosine phiASS1 ASS1_6 15 L3 phase cosine phiASS1 ASS1_7 16 L1 phase currentASS1 ASS1_8 17 L2 phase currentASS1 ASS1_9 18 L3 phase currentRemote sensor 2ASS2 ASS2_1 20 L1 phase voltageASS2 ASS2_2 21 L2 phase voltageASS2 ASS2_3 22 L3 phase voltageASS2 ASS2_4 23 L1 phase cosine phiASS2 ASS2_5 24 L2 phase cosine phiASS2 ASS2_6 25 L3 phase cosine phiASS2 ASS2_7 26 L1 phase currentASS2 ASS2_8 27 L2 phase currentASS2 ASS2_9 28 L3 phase currentRemote sensor 3ASS3 ASS3_1 30 L1 phase voltageASS3 ASS3_2 31 L2 phase voltageASS3 ASS3_3 32 L3 phase voltageASS3 ASS3_4 33 L1 phase cosine phiASS3 ASS3_5 34 L2 phase cosine phiASS3 ASS3_6 35 L3 phase cosine phiASS3 ASS3_7 36 L1 phase current



Typecode


Description

ASS3 ASS3_8 37 L2 phase currentASS3 ASS3_9 38 L3 phase currentRemote sensor 4ASS4 ASS4_1 40 L1 phase voltageASS4 ASS4_2 41 L2 phase voltageASS4 ASS4_3 42 L3 phase voltageASS4 ASS4_4 43 L1 phase cosine phiASS4 ASS4_5 44 L2 phase cosine phiASS4 ASS4_6 45 L3 phase cosine phiASS4 ASS4_7 46 L1 phase currentASS4 ASS4_8 47 L2 phase currentASS4 ASS4_9 48 L3 phase current

Table 18: Data points in monitoring direction (remote sensors)

MODBUS TCP data points

The data points of the protocol are described in the following section.

Control direction (commands)

TypeWriteSingleCoil

Inter-nal

Min. Max. Address/Bit: Di-rect bit addressassignment

Description

Bit5 37 0 1 12290/5:12325 1=Manual remote operating mode ON; shut-off also via timeout;

Bit6 38 0 1 12290/6:12326 1=Auto AVR remote operating mode ON;shutoff also via timeout;

Bit7 39 0 1 12290/7:12327 1=Raise commandRemote operating mode active with triggerrequired

Bit8 40 0 1 12290/8:12328 1=Lower commandRemote operating mode active with triggerrequired

Bit9 41 0 1 12290/9:12329 Release operating response for internal volt-age control algorithm if communication failsin the ASS operating mode (1: on)

Bit10 42 0 1 12290/10:12330 Set release operating response for internalvoltage control algorithm if communicationfails in ASS operating mode (1: on)

13.4.3

13.4.3.1



TypeWriteSingleCoil

Inter-nal


Description

Bit11 43 0 1 12290/11:12331 Set operating response for control algorithmfor fixed desired voltage value of busbar (1:on)

Bit12 44 0 1 12290/12:12332 Set operating response for control algorithmfor fixed desired voltage value of remotesensor (1: on)

Bit13 45 0 1 12290/13:12333 Set operating response for control algorithmfor current-dependent desired voltage valueof busbar (1: on)

Bit14 46 0 1 12290/14:12334 Set operating response for control algorithmfor power-dependent desired voltage valueof busbar (1: on)

Bit15 47 0 1 12290/15:12335 Set operating response for control algorithmfor multi-sensor (1: on)

Bit0 48 0 1 12291/0:12336 Set operating response for voltage too lowpreferred exceptional situation (1: on)

Bit1 49 0 1 12291/1:12337 Set operating response for voltage too highpreferred exceptional situation (1: on)

Bit2 50 0 1 12291/2:12338 Set operating response for disregarding thebusbar (1: on)

Bit3 51 0 1 12291/3:12339 Set operating response for simple consider-ation of the busbar (1: on)

Bit4 52 0 1 12291/4:12340 Set operating response for weighted consid-eration of the busbar (1: on)

Bit5 53 0 1 12291/5:12341 Set release operating response for internalvoltage control algorithm if communicationfails in Remote operating mode (1: on)

Bit6 54 0 1 12291/6:12342 Set release operating response for internalvoltage control algorithm if communicationfails in Remote operating mode (1: off)

Bit7 55 0 1 12291/7:12343 This input triggers the Modbus timeout andhas to be sent at regular intervals during theSCADA timeout period (if timeout is ena-bled) so that the regulator remains in remotemode and actions such as writing parame-ters can be taken; otherwise the regulatorreverts to auto mode (1: on)

Word Passed values in the currently selected al-gorithm

Wordwith fac-tor of 10

106 0 400 12349 Set overvoltage event message threshold[V]



TypeWriteSingleCoil

Inter-nal


Description


107 0 400 12350 Set undervoltage event message threshold[V]


108 0 400 12351 Set overvoltage blocking threshold [V]


109 0 400 12352 Set undervoltage blocking threshold [V]

Busbar control algorithmWordwith fac-tor of 10

110 0 400 12353 Set desired voltage value [V]


111 0 10 12354 Set bandwidth [V]

Word inseconds

112 0 3600 12355 Set delay time [sec]


113 0 400 12356 Set threshold for high-speed return [V]


114 0 400 12357 Set threshold for high-speed raise tap-change operation [V]

Remote sensor control algorithmWordwith fac-tor of 10




Word inseconds








TypeWriteSingleCoil

Inter-nal


Description

Word 126 1 5 12369 Selection of remote sensor measured valuefor display 12313-123221. Busbar2. Remote sensor 13. Remote sensor 24. Remote sensor 35. Remote sensor 4

Word 127 2 5 12370 Selection of remote sensor regulation12304-123122. Remote sensor 13. Remote sensor 24. Remote sensor 35. Remote sensor 4

Control algorithm for current-dependent desired voltage value of busbarWordwith fac-tor of 10


Word inseconds







115 0 400 12358 Set desired voltage value at Imin [V]


116 0 400 12359 Set desired voltage value at I0 [V]


117 0 400 12360 Set desired voltage value at Imax [V]

Wordwith fac-tor of 10and pre-cedingsign

118 -2000 2000 12361 Set Imin [A]



TypeWriteSingleCoil

Inter-nal


Description


119 -2000 2000 12362 Set I [A]


120 -2000 2000 12363 Set Imax [A]

Control algorithm for power-dependent desired voltage value of busbarWordwith fac-tor of 10


Word inseconds







115 0 400 12358 Set desired voltage value at Pmin [V]


116 0 400 12359 Set desired voltage value at Po [V]


117 0 400 12360 Set desired voltage value at Pmax [V]


118 -2000 2000 12361 Set Pmin [kW]



TypeWriteSingleCoil

Inter-nal


Description


119 -2000 2000 12362 Set P [kW]


120 -2000 2000 12363 Set Pmax [kW]

Control algorithm for multi-sensorWordwith fac-tor of 10


Word inseconds



121 0 9 12364 Set minimum voltage [V]


122 0 9 12365 Set maximum voltage [V]

Word 123 0 9 12366 Set step voltage [V] low-voltage sideWord 124 0 9 12367 Set number of "-" stepsWord 125 0 9 12368 Set number of "+" steps

Table 19: Data points in control direction

Monitoring direction (messages)

Type codeand factorWORD=FC3Bit = FC2

Inter-nal

Min. Max. Address/Bit: Di-rect bitaddressassign-ment

Description

Word 1 0 ffff 12298 Serial number part 1 (*65536)Word 2 0 ffff 12299 Serial number part 2Word 3 1 9 12300 Number of tap positions in the transformer config-

uration (5, 7, 9)Word 4 0=OK 65535 12301 Bitwise error type

See the chapter on error codes

13.4.3.2




Inter-nal


Description

Word withfactor of 10

5 0 400 12302 Overvoltage blocking threshold [V]


6 0 400 12303 Undervoltage blocking threshold [V]


7 0 400 12304 L1 voltage magnitude (regulation) [V]





Word withprecedingsign andfactor of 10

10 -2000 2000 12307 L1 current magnitude (regulation) [A]





Word withprecedingsign factorof 100

13 -100 100 12310 L1 cos(phi) (regulation)






16 0 400 12313 L1 voltage magnitude (display) [V]








Inter-nal


Description


19 -2000 2000 12316 L1 current magnitude (display) [A]






22 -100 100 12319 L1 cos(phi) (display)


23 -100 100 12320 L2 cos(phi) (display)


24 -100 100 12321 L3 cos(phi) (display)

Word sec-onds

25 0 3600 12322 Time delay when skipping intermediate positions[sec]

Word 26 1 9 12323 Smallest permissible tap positionWord 27 1 9 12324 Largest permissible tap positionWord 28 0 10000 12325 Current transformer factorControl algorithm for fixed desired voltage value of busbarWord withfactor of 10

29 0 400 12326 Desired voltage value [V]

Word withfactor of100

30 0 10.0 12327 Bandwidth [V]

Word inseconds

31 0 3600 12328 Delay time [sec]


32 0 400 12329 Threshold for high-speed return [V]


33 0 400 12330 Threshold for high-speed raise tap-change opera-tion [V]




Inter-nal


Description

Control algorithm for fixed desired voltage value of remote sensorWord withfactor of 10



30 0 10.0 12327 Bandwidth [V]

Word inseconds

31 0 3600 12328 Delay time [sec]





Control algorithm for current-dependent desired voltage value of busbarWord withfactor of 10

29 0 400 12326 Resulting desired voltage value [V]


34 0 400 12331 Desired voltage value at Imin [V]


35 0 400 12332 Desired voltage value at Io [V]


36 0 400 12333 Desired voltage value at Imax [V]


37 0 400 12334 Imin [A]


38 0 400 12335 Io [A]


39 0 400 12336 Imax [A]


30 0 10.0 12327 Bandwidth [V]

Word inseconds

31 0 3600 12328 Delay time [sec]






Inter-nal


Description



Control algorithm for power-dependent desired voltage value of busbarWord withfactor of 10

29 0 400 12326 Resulting desired voltage value [V]


34 0 400 12331 Desired voltage value at Pmin [V]


35 0 400 12332 Desired voltage value at Po [V]


36 0 400 12333 Desired voltage value at Pmax [V]


37 0 400 12334 Pmin [kW]


38 0 400 12335 Po [kW]


39 0 400 12336 Pmax [kW]


30 0 10.0 12327 Bandwidth [V]

Word inseconds

31 0 3600 12328 Delay time [sec]





Control algorithm of multi-sensorWord withfactor of 10



40 0 400 12337 Minimum voltage [V]


41 0 400 12338 Maximum voltage [V]


42 0 10.0 12339 Low-voltage side step voltage [V]




Inter-nal


Description

Word 43 0 4 12340 Number of "-" stepsWord 44 0 4 12341 Number of "-" stepsWord inseconds

31 0 3600 12328 Delay time [sec]

GeneralWord withfactor of 10

45 0 400 12342 Overvoltage [V] warning


46 0 400 12343 Undervoltage [V] warning

Word 47 1 5 12344 Selection display for sensor for display12313-123221. Busbar2. Remote sensor 13. Remote sensor 24. Remote sensor 35. Remote sensor 4

Word 48 2 5 12345 Selection display of remote sensor for regulation12304-123122. Remote sensor 13. Remote sensor 24. Remote sensor 35. Remote sensor 4

Word 49 0/1 9 12346 Current tap position (level 1 … 9; 0 before auto-matic adjustment was undertaken)

Word 50 0 ffff 12347 Operations counter part 1(*65536)Word 51 0 ffff 12348 Operations counter part 2Binary Binary status flags, the states are transferred

from the currently selected control algorithmBit0 1 0 1 12289/0:1

2288Manual operating mode (1: on, 0: off)

Bit1 2 0 1 12289/1:12289

Auto operating mode (1: on, 0: off)

Bit2 3 0 1 12289/2:12290

Remote operating mode (1: on, 0: off)

Bit3 4 0 1 12289/3:12291

Raise tap-change operation start event message(1: on, 0: off)

Bit4 5 0 1 12289/4:12292

Lower tap-change operation start event message(1: on, 0: off)




Inter-nal


Description

Bit5 6 0 1 12289/5:12293

L1 overvoltage event message (1: on, 0: off)

Bit6 7 0 1 12289/6:12294

L1 undervoltage event message (1: on, 0: off)

Bit7 8 0 1 12289/7:12295


Bit8 9 0 1 12289/8:12296


Bit9 10 0 1 12289/9:12297


Bit10 11 0 1 12289/10:12298


Bit11 12 0 1 12289/11:12299

Error event message (1: on, 0: off)

Bit12 13 0 1 12289/12:12300

Operating response for skipping intermediate po-sitions (1: on, 0: off)

Bit13 14 0 1 12289/13:12301

Operating response for voltage measurement (1:on, 0: off)

Bit14 15 0 1 12289/14:12302

Release operating response for internal voltagecontrol algorithm if communication fails in remoteoperating mode (1: on, 0: off)

Bit15 16 0 1 12289/15:12303

Operating response for control algorithm for fixeddesired voltage value of busbar (1: on, 0: off)

Bit1 17 0 1 12290/1:12305

Operating response for control algorithm for fixeddesired voltage value of remote sensor (1: on, 0:off)

Bit2 18 0 1 12290/2:12306

Operating response for control algorithm for cur-rent-dependent desired voltage value of busbar(1: on, 0: off)

Bit3 19 0 1 12290/3:12307

Operating response for control algorithm for pow-er-dependent desired voltage value of busbar (1:on, 0: off)

Bit4 20 0 1 12290/4:12308

Operating response for control algorithm for multi-sensor (1: on, 0: off)

Bit5 21 0 1 12290/5:12309

Operating response for voltage too low preferredexceptional situation (1: on; 0: off)

Bit6 22 0 1 12290/6:12310

Operating response for voltage too high preferredexceptional situation (1: on; 0: off)

Bit7 23 0 1 12290/7:12311

Multi: Operating response for disregarding thebusbar (1: on; 0: off)




Inter-nal


Description

Bit8 24 0 1 12290/8:12312

Multi: Operating response for simple considera-tion of the busbar (1: on; 0: off)

Bit9 25 0 1 12290/9:12313

Multi: Operating response for weighted considera-tion of the busbar (1: on; 0: off)

Bit10 26 0 1 12290/10:12314

Release operating response for control algorithmfor fixed desired voltage value of busbar if com-munication with the sensor fails (1: on, 0: off)

Bit11 27 0 1 12290/11:12315

Status manual=0/automatic voltage regulation=1in the regulator

Bit12 28 0 1 12290/12:12316

Voltage=1 blocking status in the regulator

Bit13 29 0 1 12290/13:12317

Operating response for sensor 1 activated (1: on,0: off)

Bit14 30 0 1 12290/14:12318

Sensor 1 error event message (1: on, 0: off)

Bit15 31 0 1 12290/15:12319


Bit0 32 0 1 12291/0:12320


Bit1 33 0 1 12290/1:12321


Bit2 34 0 1 12290/2:12322


Bit3 35 0 1 12290/3:12323


Bit4 36 0 1 12290/4:12324


Table 20: Data points in monitoring direction

Configuring IOA for IEC 60870-5-104

You can configure the information numbers (IOA) for IEC 60870-5-104. Tohelp with the configuration, a csv file structured as follows is stored on thedevice:30_1;1;0;030_2;2;0;030_3;3;0;030_4;4;0;030_5;5;0;030_6;6;0;030_7;7;0;0

13.4.4



30_8;8;0;030_9;9;0;0 Column 1: Internal number of the data point (see data point table

[ 90]) Column 2: Byte 1 information number Column 3: Byte 2 information number Column 4: Byte 3 information number

Proceed as follows to configure the IOA.ü The PC is connected to the control unit/regulation unit over Ethernet and

is in the same subnet.1. Establish an FTP connection to the address ftp://192.168.0.1

(user name: admin, password: wago, port: 21).2. Download the ioa.csv file in the PLC folder.3. Edit the file as needed using a text editor.4. Upload the modified file to the control unit/regulation unit.5. In order to apply the modified values, trigger the built-in miniature circuit

breaker to de-energize the control system. Wait approximately 10 sec-onds, then close the miniature circuit breaker again.

The voltage for the transformer is not automatically regulated while the con-trol unit is deactivated.

Show system dataYou can view the system data and measured values on the web interface.To do so, proceed as follows: Call up the web interface [ 73].

Measured values

You can view the following measured values: Tap position Voltage Current* Active power* Reactive power* Power factor*

13.5



*) Only with current measurement enabled

Figure 61: Measured values

If you measure the voltage using remote sensors, you can display the meas-ured values of the individual sensors. To do so, proceed as follows: In the Measurement point selection, select the desired sensor.

System data

You can view the following system data: System status

– Green: OK– Red: Error (error code)

Status– Auto: Automatic voltage regulation– Man: Manual mode– Rem: Remote operating mode

Number of tap-change operations Serial number

Figure 62: System data

System history

You can view detailed statistics (e.g. min. and max. values) for the system inthe system history menu.

Proceed as follows to call up the system history:1. Call up the web interface [ 73].



2. Select the System history submenu.

Figure 63: System history

3. Select the Reset button if needed to clear the system history.

Error memory

The error memory shows you the error history. The following error codes canappear. Follow the Fault elimination [ 120] section for troubleshooting.

System status (er-ror code)

Error description

1 Motor error2 Position error4 Error during automatic adjustment8 Undervoltage16 Lack of automatic adjustment32 Retrace error > 564 Position < Pos_min128 Position > Pos_max256 Network errorOther number Miscellaneous error; can be evaluated by MR.

Table 21: Error codes

Proceed as follows to call up the error memory:1. Call up the web interface [ 73].



2. Select the System history > Error memory submenu.

Figure 64: Error memory

3. Select the Reset button if needed to clear the error memory.

Activating additional functionsYou can acquire and activate the following additional functions for the deviceafter commissioning: MODBUS TCP Static desired value and measurement using remote sensors Current-dependent desired value adjustment Power-dependent desired value adjustment Multi-sensor evaluation Meas. value logging

Proceed as follows to activate an additional function:1. Call up the web interface [ 73].2. Call up the Advanced settings menu item.

Figure 65: Activating additional functions

13.6



3. Send the serial number and test number of the device as well as the de-sired functions to Maschinenfabrik Reinhausen.ð You will receive an activation key to activate the desired functions.

4. Enter the activation key and select Check key.ð The function is activated after the check finishes successfully.

Security settingsYou can set a password to protect the interface from unauthorized access.The password can consist of up to 10 characters (a to z, 1 to 10).

Proceed as follows to set a password:1. Call up the web interface [ 73].2. Call up the Advanced settings menu item.

Figure 66: Security settings

3. Enter the password in the Password and Repeat password fields.4. Press the Set password button to save the password.5. If needed, enter a time value in the Interface timeout field. This is the

period of time after which the interface is locked and requires a pass-word to be unlocked again.

Setting measured value logging (optional)If your device is equipped with the optional measured value logging function,the following measured values and operating statuses are saved on the SDcard as a csv file: Voltage (3 phases) Current (3 phases) Active power, reactive power, and apparent power (3 phases) cosφ (3 phases) Tap position Active regulation algorithm Current operating mode (Auto, Manual, Remote)

Each of the measured values is saved as a minimum, maximum, and aver-age over the time interval.

You can set the following parameters for the measured value logging: Activate/deactivate measured value logging Time interval

13.7

13.8



Short descriptive text: Text is incorporated in file name of csv file (exam-ple: specification of postal code)

To set the measured value logging, proceed as follows:1. Call up the web interface [ 73].2. Call up the Advanced settings menu item.3. Make the settings desired.

Downloading measured values as csv file

To load the measured values from the control, proceed as follows:ü The PC is connected to the control unit/regulation unit over Ethernet and

is in the same subnet.1. Establish an FTP connection to the address ftp://192.168.0.1 (user

name: admin, password: wago, port: 21).2. Call up S:\ drive on the control.3. Download the desired csv files in the Logging folder.

Carrying out LED testYou can check the functionality of the control cabinet's LEDs. To do so, pro-ceed as follows:

Standard variant1. Move rotary switch for operating mode to Auto position.

ð The automatic voltage regulation operating mode is active.2. Press the Raise or Lower key and keep held down.ð All LEDs light up.

Key-operated switch variant1. Move key-operated switch into Local position.2. Press Man./Auto illuminated button to activate auto mode (Man./Auto il-

luminated button lights up).3. Press Raise/Lower control switch.ð All LEDs light up.

13.9

14 Connecting external measuring device (only key-operated switch variant)


Connecting external measuring device (only key-operated switch variant)The control cabinet in the key-operated switch variant has 4 measuringbushes, which you can use to connect an external measuring device for thevoltage measurement.

DANGER Risk of life-threatening injury due to electric shock!The measuring bushes are not fused internally. Incorrect operation maytherefore result in electric shock! Only connect measuring devices of measurement category CAT III (in

accordance with IEC 61010-1) and a permissible maximum rated volt-age of 1,000 V.

Observe safety notices in the measuring device user guide. Observe national requirements for working on live equipment.

To connect an external measuring device, proceed as follows: Plug measuring device connector into the measuring bushes intended.

Figure 67: Measuring bushes for connecting an external measuring device

14

15 Maintenance and care


Maintenance and careYou can clean the device's housing with a dry cloth.

15

16 Fault elimination


Fault eliminationThe transformer can be operated in the current tap position safely despitethe red signal light.

Characteristics/detail Cause RemedyThe Error signal lamp doesnot light up when the controlunit/regulation unit is startedup for the first time. The tapposition display does not dis-play a number.

Voltage supply faulty Check correct connection to voltage supply.Engage miniature circuit breaker.If the signal lamp is still not red after this,contact MR.

Error signal lamp lights upduring operation.

Miscellaneous error Call up the error memory [ 112].De-energize the device using the miniaturecircuit breaker in the control unit/regulationunit and restart it.If the signal lamp is still red after this, contactMR.

Error signal lamp lights upduring operation. Error code 1

Motor error Contact Maschinenfabrik Reinhausen.


Position error Contact Maschinenfabrik Reinhausen.


Error during automaticadjustmentS80/S81 micro-switchconnection faulty.

Check [ 44] the connection for bothS80/S81 micro-switches.NOTICE: Jerkily removing the motor unit canresult in damage to S80/S81 due to the con-trol cable between S80/S81 and the motor.If the signal lamp is still red after this, contactMR.


Undervoltage Check the supply voltage.


Lack of automatic adjust-ment

Carry out automatic adjustment.Note that the on-load tap-changer moves toposition 1 during this process. This positioncould have the highest or lowest voltage onthe low-voltage side depending on the trans-former design. Opening the low-voltage bus-bar's load disconnecting switch is recom-mended in order to prevent major voltage de-viations for consumers.

16

16 Fault elimination


Characteristics/detail Cause RemedyError signal lamp lights upduring operation. Error code 32

Retrace error > 5 Contact Maschinenfabrik Reinhausen.

Error code 64 Tap position is less thanthe set Pos min limit val-ue.

Check the Pos min limit value

Error code 128 Tap position is greaterthan the set Pos max limitvalue.

Check the Pos max limit value

Error code 256 Network error Check the setting for the IP address Miscellaneous error

codeOne or more errors arepresent.

Contact Maschinenfabrik Reinhausen.

Tap-change operation oc-curs in reverse.

Connection or parameter-ization faulty

Check the transformer configuration in ac-cordance with the connection diagrams inthe appendix and adjust the parameterizationif necessary (lowest voltage at smallest orlargest position). Contact MaschinenfabrikReinhausen in this regard.

Control system connection isunstable

Faulty configuration ofpackage size (MTU)

Check whether the connection permits apackage size of MTU = 1500 (factory set-ting). Contact Maschinenfabrik Reinhausen ifyou want to adjust the MTU of the controlunit/regulation unit.

Table 22: Fault elimination

17 Messages (optional)


Messages (optional)Depending on the product variant, you can forward the following messagesusing floating contacts.

Terminal Message DescriptionX5:2 Error Error status messageX5:3 Status OK Status OK status messageX5:4...7 BCD1...8 BCD signal of tap position

Table 23: GRIDCON® iTAP® messages

17

18 Technical data


Technical data

Technical data for the on-load tap-changer iTAP III 30 A iTAP III 85 A

Equalizer winding Available or not avail-able

Available

Number of phases 3Application At any point in the windingPermitted transformer types Free breathing with oil conservator

Entirely oil-filled sealed transformers (without gascushion)

Maximum rated through current 30 A 85 ARated short-time current 600 A 1,700 ARated duration of short-circuits 3 sRated peak withstand current 1,500 A 4,250 AMaximum rated step voltage 600 V 600 VMaximum rated tapping voltage 1,200 V 1,200 VStep capacity 18,000 VA 51,000 VAMaximum number of operating positions 9Rated insulation level: Highest voltage for equipment Um 24 kV Rated withstand voltages See drawing 780029 [ 135]Rated frequency 50 HzPermissible temperature range of transformer oilfor on-load tap-change operations:

Mineral insulating oil (IEC 60296) -25°C – +105°C Synthetic ester liquid (IEC 61099) -15 °C – +105 °C Natural ester liquid (IEC 62770) -10 °C – +105 °CPermissible absolute pressure during operation minimum 0.7 bar, maximum 1.3 barVacuum-drying vacuum proofResidual pressure with low-frequency drying > 0.5 barMaximum number of tap-change operations 700,000 500,000

Table 24: Technical data for the on-load tap-changer

18

18.1

18 Technical data


Figure 68: Step capacity diagram

1 iTAP® III 30 without/withequalizer winding: 18,000 VA

Ui Rated step voltage

2 iTAP® III 85 with equalizerwinding: 51,000 VA

IU Rated through-current

Technical data for the motor-drive unitDuration of the tap-change opera-tion

approx. 2 s

Shortest gap between tap-changeoperations

2 s

Permissible ambient temperatureduring operation

-20 °C – +60 °C

Permissible storage temperature -25 °C – +85 °CProtection class IP 65Operating site Interior, exterior

Table 25: Technical data for the motor-drive unit

Technical data of the control unit/regulation unitPermissible voltage rangeNote: The measured voltage is thesupply voltage

180 to 264 VAC, 50 HzUN: 230 V, 50 Hz

Input current Max. 5.8 APower consumption Max. 350 VA, typ. 50 VA

18.2

18.3

18 Technical data


Internal fuse at L1 (F1) Miniature circuit breaker 230/400 V6 kA, 1-pole, C, 6 A

Internal fuse 48 V (F2) SIBA, 7000140.10 (5 x 20 mm, 10A FF [< 22 A²s])

Internal fuse 24 V (F3) SIBA, 172100.3.15 (5 x 20 mm,3.15 A M)

Table 26: Power supply

Figure 69: Fuses

Voltage measurement UN: 230 V ACInput resistance typ.: 1071 kΩMeasurement category: CAT IIIMeasuring error: < 0.5% (in relationto the measuring range transmitvalue)Key-operated switch variant only: 4measuring bushes (L1, L2, L3, N)for 4 mm banana connector

Current measurement IN: 1 AMeasuring range transmit value: 1AInput resistance typ.: 22 mΩMeasurement category: CAT IIIMeasuring error: < 0.5% (in relationto the measuring range transmitvalue)Overload capacity: Continuous: 1.2A, short-term (10ms) 10 A

Frequency measurement fN: 50 HzMeasurement category: CAT III

Table 27: Voltage measurement and current measurement

18 Technical data


Permissible ambient temperatureduring operation

-25 °C – +50 °C

Permissible storage temperature -25 °C – +85 °CProtection class IP 54Operating site Interior

Table 28: Ambient conditions

19 Appendix


AppendixThe dimensional drawings actually provided with the on-load tap-changerapply.

19

19 Appendix


Connection diagram for on-load tap-changer with 9operating positions, equalizer winding, and maximumnumber of windings for operating position 1 (3052067)

19.1

19 Appendix



19.2

19 Appendix



19.3

19 Appendix



19.4

19 Appendix


Dimensional drawing for 30 A on-load tap-changer, as anexample for 9 operating positions (7816150)

19.5

19 Appendix


Dimensional drawing for 85 A on-load tap-changer, as anexample for 9 operating positions (100120340)

19.6

19 Appendix


Dimensional drawing for on-load tap-changer, as anexample for 9 operating positions (7816150)

19.7

19 Appendix


On-load tap-changer rated withstand voltage (780029)19.8

19 Appendix


Dimension diagram for control unit/regulation unit

Figure 70: Dimensions of control unit/regulation unit (380 x 380 mm)


19.9

19 Appendix



19 Appendix


Dimensional drawing of device carrier

Figure 73: Dimensions of device carrier for mounting control unit/regulation unit (200 x 800 mm) on low-voltage busbar

19.10

19 Appendix


Motor-drive unit terminal diagram

Control unit/regulation unit terminal diagram

19.11

19.12

19 Appendix


Floating contacts (optional) terminal diagram

Figure 74: Potential-free contacts for status message (optional)

Figure 75: Potential-free contacts for status message and tap position as BCD signal(optional)

19.13

MR worldwideAustraliaReinhausen Australia Pty. Ltd.17/20-22 St Albans RoadKingsgrove NSW 2208Phone: +61 2 9502 2202Fax: +61 2 9502 2224E-Mail: [email protected]

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[email protected]

Russian FederationOOO MRNaberezhnaya Akademika Tupoleva15, Bld. 2 ("Tupolev Plaza")105005 MoscowPhone: +7 495 980 89 67Fax: +7 495 980 89 67E-Mail: [email protected]

South AfricaReinhausen South Africa (Pty) Ltd.No. 15, Third Street, Booysens ReserveJohannesburgPhone: +27 11 8352077Fax: +27 11 8353806E-Mail: [email protected] South KoreaReinhausen Korea Ltd.21st floor, Standard Chartered Bank Bldg.,47, Chongro, Chongro-gu,Seoul 110-702Phone: +82 2 767 4909Fax: +82 2 736 0049E-Mail: [email protected]

U.S.A.Reinhausen Manufacturing Inc.2549 North 9th AvenueHumboldt, TN 38343Phone: +1 731 784 7681Fax: +1 731 784 7682E-Mail: [email protected] United Arab EmiratesReinhausen Middle East FZEDubai Airport Freezone, Building Phase 63rd floor, Office No. 6EB, 341 DubaiPhone: +971 4 2368 451Fax: +971 4 2368 225Email: [email protected]

Maschinenfabrik Reinhausen GmbHFalkensteinstrasse 893059 Regensburg

+49 (0)941 4090-0+49(0)941 [email protected]

www.reinhausen.com

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