areva energietechnik gmbh – sachsenwerk medium voltage...

GHAGas-Insulated Switchgear

AREVA T&D

Technical Instruction

GAS-INSULATED SWITCHGEARS

Assembly Instructionsfor single and double busbar switchgear

No. AGS 531446-01

Edition 09/08

AREVA Energietechnik GmbH Sachsenwerk Medium Voltage -2008-All rights reserved to this technical instruction.Reproduction and making available of this technical instruction, or extracts, to third parties are prohibited. Only integral reproduction of this technical instruction is permitted with the written permission from AREVA Energietechnik GmbH Sachsenwerk Medium Voltage. Electronic copies in e.g. PDF-format or scanned version have the status for information only .The only valid version of technical Instructions are always enclosed directly to the product in question by the factory.

AREVA T&D Worldwide Contact Centre

http://www.areva-td.com/contactcentre +44 (0) 1785 250 070

Manufacturer:

AREVA Energietechnik GmbH Sachsenwerk Medium VoltageRathenaustrasse 2D-93055 Regensburg, Germany +49 (0) 9 41 46 20-0 +49 (0) 9 41 46 20-418

Service:Should you have any queries as to our service, please contact:

AREVA Energietechnik GmbH Sachsenwerk Medium VoltageService-CenterD-93055 Regensburg, Germany +49 (0) 9 41 4620-777 +49 (0) 9 41 4620-778

GHA | Assembly Instructions 3

Content

Remarks on this manual . . . . . . . . . . . . . . . . . . . . . . . . . . .5Purpose and target group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5Reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5Terms, abbreviations and symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6Any questions or suggestions? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

1 Safety provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2 Design, description, variants . . . . . . . . . . . . . . . . . . .82.1 Switchgear panels with single busbar . . . . . . . . . . . . . . . . . . . . . . . . . . . .82.2 Switchgear panels with double busbar . . . . . . . . . . . . . . . . . . . . . . . . . .112.3 Dimensions and weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132.4 Utilization in line with the intended purpose . . . . . . . . . . . . . . . . . . . . . .152.5 Applied standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .152.6 Disposal after the end of the panel's service life . . . . . . . . . . . . . . . . . . .16

3 Packaging, transport, storage . . . . . . . . . . . . . . . . .173.1 Shipping units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .173.2 Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .173.3 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

4 Installation of panels . . . . . . . . . . . . . . . . . . . . . . . . .194.1 Safety provisions and instructions for assembly . . . . . . . . . . . . . . . . . . .194.2 Requirements regarding the switchgear room . . . . . . . . . . . . . . . . . . . .194.3 Transporting the panels on the construction site . . . . . . . . . . . . . . . . . .224.3.1 Transport on the crane hook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .224.3.2 Transport using the transport frame . . . . . . . . . . . . . . . . . . . . . . . . . . .234.3.3 Transport of the panels on the base frame . . . . . . . . . . . . . . . . . . . . .234.4 Removal of covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .244.4.1 Cable compartment interlock (optional)) . . . . . . . . . . . . . . . . . . . . . . .244.4.2 Removing the cable compartment cover and the

operator interface cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .254.5 Installation of panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .274.6 Compensating covers for the panel front . . . . . . . . . . . . . . . . . . . . . . . .304.7 Busbar link: B link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .314.8 Panel screw connection to the base frame . . . . . . . . . . . . . . . . . . . . . .344.9 Mounting the earth bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

5 Busbar attachments . . . . . . . . . . . . . . . . . . . . . . . . .365.1 Safety provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .365.2 Mounting surge arresters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .365.3 Mounting voltage transformers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

6 Low-voltage cabinet . . . . . . . . . . . . . . . . . . . . . . . . . .396.1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .396.2 Connecting the control lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

Content

4 GHA | Assembly Instructions

7 Switchgear termination . . . . . . . . . . . . . . . . . . . . . . .427.1 Switchgear without pressure relief duct . . . . . . . . . . . . . . . . . . . . . . . . .427.1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .427.1.2 Attaching the right-hand or left-hand side plates . . . . . . . . . . . . . . . .427.1.3 Extension of side plate in double busbar switchgear . . . . . . . . . . . . .447.1.4 Gap covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .457.2 Switchgear with pressure relief duct . . . . . . . . . . . . . . . . . . . . . . . . . . . .477.2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .477.2.2 Attachment of the pressure relief duct . . . . . . . . . . . . . . . . . . . . . . . .487.2.3 Additional reinforcements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .497.2.4 Mounting the side plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

8 High-voltage connection . . . . . . . . . . . . . . . . . . . . . .518.1 Cable connection compartment with base plates (optional) . . . . . . . . .518.2 Outer cone-type connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .528.3 Inner cone-type sockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

9 Replacement of transformers . . . . . . . . . . . . . . . . .589.1 Current transformer for outer cone-type connection . . . . . . . . . . . . . . .589.2 Current transformers for inner cone-type connection . . . . . . . . . . . . . .599.3 Voltage transformers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

10 Final steps / commissioning . . . . . . . . . . . . . . . . . .6010.1 Final steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6010.1.1 Attachment of the tool board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6010.1.2 Clean, and check assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6010.1.3 Remount covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6110.1.4 Damage to the paint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6110.1.5 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6110.2 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

11 Optional high-voltage test on commissioning . . .6211.1 Power frequency test of busbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6211.2 Cable test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6311.3 Cable jacket test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66

12 Annex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6712.1 Auxiliary products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6712.2 How to treat the contact surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6712.3 Mounting tools (not included in the scope of supplies) . . . . . . . . . . . . .6812.5 Screw locking compound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6912.4 Screw fastenings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6912.6 List of the assembly drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

Purpose and target group

This Technical Instruction describes the assembly of gas-insulated medium-voltage switchgear panels from the GHA series.

It is exclusively intended for use by the manufacturer's staff or by persons cer-tified for the GHA series (training certificate).

This Technical Instruction is an integral part of the product and must be storedin such a way that it is at all times readily accessible for and can be used bypersons who are to work on the switchgear. If the switchgear is relocated toanother site, this Technical Instruction must be passed on to the new opera-tors along with the unit.

As our products are subject to continuous further development, we reserve theright to make changes regarding standards, illustrations and technical data.

All dimensions specified in this Technical Instruction are in millimeters.

Reference documents

The following additional documents must be observed for this switchgear:

sales agreement with the stipulations regarding the switchgear-specificequipment and the legal details

the switchgear-specific circuit diagrams / documentation

GHA Operating Instructions

the operating instructions for the devices installed in the switchgear:

voltage detection systems, e. g. IVIS (no. AGS 531 757-01)

Intelligent Density Information System IDIS (no. AGS 531 691-01)

system for the detection of internal arcs ILIS (optional) (no. AGS 531 761-01)

devices in the low-voltage cabinet

the Assembly Instructions of the manufacturer of the cable connectionsystems to be connected to the switchgear

the assembly drawings supplied with the switchgear

Sulphur Hexafluoride (SF6) in Gas-Insulated Switchgear and Controlgearup to 52 kV AC Instruction for Use and Handling (no. AGS 535 051-01)

Remarks on this manual


Terms, abbreviations and symbols used

This manual uses certain terms and symbols. They warn about dangers or pro-vide important information which must be complied with to avoid danger topersonnel and damage to equipment:

WarningThis danger symbol warns about dangerous electrical voltage. Con-tact with voltage may result in fatal injury!

WarningThis danger symbol warns about the risk of injury. Please complywith all the provisions identified by this symbol in order to avoiddeath or serious injury.

WarningThis danger symbol warns about the risk of falling.

ImportantThis instruction symbol is used for information which is important to avoid ma-terial damage.

For reasons of simplification, the following abbreviations are used in this manu-al:

SBB = Single busbar

DBB = Double busbar

BB1 = Busbar 1

BB2 = Busbar 2

Any questions or suggestions?

Do you have any questions or suggestions regarding this manual, or do you re-quire further information?

We always strive to provide you with the best-possible information for opti-mum, safe use of our products. Thus, do not hesitate to contact us if you haveany recommendations, amendments or proposals for improvement.

Remarks on this manual


Read these instructions carefully before you work on the switchgear, and per-form the work detailed in them as described. Do not perform any work which isnot described in this manual.

Common regulations for high-voltage switchgear and control gear: IEC 62271-1

Use and handling of sulphur hexafluoride (SF6) in high-voltageswitchgear: IEC 62271-303

The locally applicable accident prevention, operating and work instruc-tions must be complied with.

Installation: IEC 61936-1 / HD 637 S11

Operation of electrical equipment: EN 50110-11

1 The national standards applicable in the country where the equipment is to be in-stalled must be complied with.

Before performing work on the panel, make sure that you comply withthe following instructions:

Warning!Before starting work on high-voltage components, de-energize thesystem, verify it for zero voltage and earth the system in accor-dance with the applicable safety rules pursuant to EN 50110-1.

Warning!After removal of covers, operator safety in accordance with IEC62271-200 may be restricted if the appropriate part of theswitchgear panel has not been isolated from the power supply.

Warning!Before performing work on the drive mechanism, switch off the sup-ply voltage and prevent it from reclosing.

Warning!There is a risk of injury when working on the drive mechanism. Be-fore commencing work, release the energy-storing device by

an OFFONOFF operating sequence and

closing via the make-proof earthing switch.

For the case of an internal fault, the GHA switchgear features pressure reliefports which prevent the panels and the switchgear from bursting.

In case of fire or of internal faults, toxic and caustic decomposition productsmay be produced. Comply with the locally applicable accident and safety pro-visions.

In case of personal injury, take first-aid measures or cause them to be taken.

Behaviour in case of incidents oraccidents

Applicable standards and regulations:

1 Safety provisions



2 Design, description, variants

1

2

3

4

56a

7

8

9

10

1213

14

15

16

17

Fig. 2.1Circuit-breaker panel with outer cone-type cable connection

1

2

5

7

11

16

17

18

10

6b

8 9

11

6b

8

7

5

10

Fig. 2.2Circuit-breaker panel with inner cone-type cable connection

1 Busbar tank with three-positionswitch

2 Jack rings

3 Busbar link

4 Circuit-breaker tank with vacuum in-terrupter chambers

5 Toroidal-core current transformer

6a Outer cone-type cable connectionsystem

6b Inner cone-type cable connectionsystem

7 Voltage transformer (optional)

8 Cable support

9 Cable compartment cover

10 Isolating device for voltage trans-former (optional)

11 Test sockets for cable test

12 Capacitive voltage detection system

13 IDIS display unit for monitoring of in-sulating gas

14 Hinged front frame

15 Manual user interface

16 Low-voltage cabinet

17 IDIS gas density switch

2.1 Switchgear panels with single busbar

GHA | Assembly Instructions



L R

1 Right-hand busbar tank with three-position switch

2 Left-hand busbar tank with three-po-sition switch

3 Jack rings

4 Busbar link

5 Circuit-breaker tank with vacuum in-terrupter chambers

6 Toroidal-core current transformer(optional)



10 Test sockets (optional)

11 IDIS display unit for monitoring of in-sulating gas




15 IDIS gas density switch

Fig. 2.3Bus section coupler, shown for a rated current of Ir 2000 A

123

4

5

6

10

13

11

12

87

14

15


L R

6

8

Fig. 2.4Bus section coupler, shown for a rated current of Ir 2500 A

Busbar attachments

Fig. 2.5Busbar voltage transformers (2 variants available)

Fig. 2.7Busbar earthing switch

Fig. 2.6Busbar surge arresters (2 variants available)


GHA | Assembly Instructions10 GHA | Assembly Instructions


1

2

7

3

4a

5

6

171819 16

8

9

10

12

13

14

15

11



12

2.2 Switchgear panels with double busbar

Fig. 2.8Circuit-breaker panel with outer cone-type cable connection

1 Gas density switch of the IDIS sys-tems for busbar 1 (rear busbar)

2 Busbar link BB1

3 Circuit-breaker tank with vacuuminterrupter chambers

4a Outer cone-type cable connection

4b Inner cone-type cable connection

5 Toroidal-core current transformer


7 Cable support


9 Isolating device for voltage trans-former (optional)

10 Capacitive voltage detection system

11 IDIS display unit for monitoring ofinsulating gas




15 Gas density switch of the IDIS sys-tems for busbar 2 (upper busbar)

16 Busbar link BB2

17 Tank for busbar 2 (upper busbar)with three-position switch

18 Jack rings

19 Tank for busbar 1 (rear busbar) withdisconnector

20 Test sockets for cable test

12

1

2

3

5

6

20

16

17

18

9

4b

7 8

5

20

9

6

7

4b

Fig. 2.9Circuit-breaker panel with inner cone-type cable connection

12 GHA | Assembly InstructionsGHA | Assembly Instructions


12

12

12

Fig. 2.10Bus section coupler, busbar 2 (busbar 1 analogous)

Fig. 2.11Bus coupler

Fig. 2.12Metering panel with busbar voltage transformer or with busbarsurge arrester (not shown)

12

Fig. 2.13Busbar earthing switch


1 In case of branch-circuit panels, therated current Ir refers to the feeder(max. busbar nominal current: 2500 A)

2 The values in the Table refer to apanel depth without pressure reliefduct on the rear. Panel depth withpressure relief duct on the rear:1595 mm

3 including low-voltage cabinet, with-out voltage transformer and, in caseof branch circuit panels with outercone-type bushings. Branch circuit panels with innercone-type sockets: approx. + 200kg, depending on design.Panels with pressure relief duct onthe rear: approx. + 100 kg, depend-ing on panel width

4 Dimensions depend on the cableconnection system; inner cone-type/outer cone-type cable connec-tion

2.3 Dimensions and weights

Single busbar

Panel type Rated current Ir1

[A]Panel width A

[mm]Depth2[mm]

Height[mm]

Weight3approx. [kg]

Branch-circuit panel

1250 6001340

2400/2780

(Height, low-voltage cabinet:

800/1200)

700

1600 600/8004

800

2000 1380/13404 900

2500 900 1340 1100

Bus sec-tion cou-pler

1250800

1340 900

1600/2000 1380 1100

2500 1000 1340 1300

Busbar earthing switch +70

Isolating device on the busbar (for voltage transformer or surge arrester) (panel height depending on the attachment design, see Chapter 2.1)

+70

Voltage transformer for outgoing feeder cable / busbar+ 120

(3 x 40)

GHA | Assembly InstructionsGHA | Assembly Instructions 13

1340/13803

15954

2380

/278

01

2400

A

2100

/222

0/22

912

Fig. 2.14Dimensions of a GHA series single busbar switchgear panel1 with low-voltage cabinet 800/1200 mm2 Height depends on the busbar cooler attachments 3 Panel depth depending on rated nominal current Ir of the panel (without/with cooler,

see Table)4 Panel depth with pressure relief duct


1 In case of branch-circuit panels, therated current Ir refers to the feeder(max. busbar nominal current: 2500 A).

2 The values in the Table refer to apanel depth without pressure reliefduct on the rear.Technical details and the design forthe rear pressure relief duct must beclarified with the manufacturer as re-quired.

3 including low-voltage cabinet, with-out voltage transformer and, in caseof branch circuit panels with outercone-type cable connector. Branch circuit panels with innercone-type cable connector: approx.+ 200 kg, depending on design

4 Dimensions depend on the cableconnection system; inner cone-type/outer cone-type cable connec-tion

Panel typeRated current Ir1

[A]Panel width

[mm]Depth2[mm]

Height[mm]

Weight3approx. [kg]

12

Branch-circuit panel

1250 6001700

2380/2780

(Height, low-voltagecabinet: 800/1200)

9001600

600/80042000

18601200

2500 900 140012

Bus section coupler

1250/1600800

1700 1100

2000 1980 1400

2500 1000 1860 1600

12

Bus coupler

1250/1600600

1700 900

20001860

1100

2500 900 1300

12

Metering panel forvoltage transformer

2500 A 600 1700 2400/2780 400

12 Busbar earthing

switch 2500 A 600 1700 2400/2780 400

Voltage transformer for outgoing feeder cable / busbar+120

(3 x 40)

Double busbar

2100

/222

0/22

912

2380

/278

01

1700/18603A

2400

Fig. 2.15Dimensions of a GHA series double busbar switchgear panel1 with low-voltage cabinet 800/1200 mm2 Height depends on the busbar cooler attachments3 Panel depth depending on rated nominal current Ir of the panel (see Table)



2.4 Utilization in line with the intended purpose

Gas-insulated GHA medium-voltage switchgear panels are exclusively intend-ed for switching and distributing electrical energies. They may only be used inthe scope of the specified standards and the switchgear-specific technicaldata. Any other utilization constitutes improper use and may result in dangersand damage.

The manufacturer shall not be held responsible for damage which occurs if

instructions in this Technical Manual are not complied with,

the switchgear is not operated according to its intended use (see above);

the switchgear is assembled, connected or operated improperly;

accessories or spare parts are used which have not been approved by themanufacturer;

the switchgear is converted without the manufacturers approval, or if in-admissible parts are attached.

No liability is accepted for parts provided by customers, e.g. current transform-ers.

2.5 Applied standards

Type GHA switchgear panels are

metal-enclosed

SF6-insulated

type-tested and prefabricated

tested for internal faults (qualification IAC)

dimensioned for indoor installation

Disclaimer of liability

Designation IEC standard EN standard

SwitchgearIEC 62271-1IEC 62271-200 EN 62271-200

Circuit-breaker IEC 62271-100 EN 62271-100

Earthing switch IEC 62271-102 EN 62271-102

Disconnector IEC 62271-102 EN 62271-102

Current transformers IEC 60044-1 EN 60044-1

Voltage transformer IEC 60044-2 EN 60044-2

Voltage Detecting Systems IEC 61243-5 EN 61243-5

Protection against accidental contact, for-eign bodies and water

IEC 60529 EN 60529

Installation IEC 61936-1 HD 637 S1

Operation of electrical equipment EN 50110-1

Insulating gas sulphur hexafluoride SF6 IEC 60376 EN 60376

Use and handling of sulphur hexafluoride(SF6)

IEC 62271-303

GHA switchgear panels meet thefollowing standards and regula-tions:



The switchgear GHA is an indoor switchgear and may only be operated undernormal conditions in acc. with IEC 62271-1.

Operation under conditions deviating from these is only admissible subject toconsultation with and written approval from the manufacturer.

2.6 Disposal after the end of the panel's service life

The operating equipment contains the fluorinated greenhouse gas SF6 men-tioned in the Kyoto protocol with a global warming potential (GWP) of 22 200.

SF6 must be recovered and must not be released into the atmosphere. Whenusing and handling SF6, comply with the specifications in the standard IEC62271 High-Voltage Switchgear and Controlgear Part 303 Use and Han-dling of Sulphur Hexafluoride (SF6).

A material and recycling data sheet can be provided on request for the dispos-al of series GHA switchgear at the end of its service life:

Disposal is performed as a service with costs by the manufacturers ServiceCenter.

Environmental and operating conditions

Ambient conditions in accordance with IEC 62271-1

Temperature class "minus 5 indoors"

Min./max. ambient temperature C 5/+402

Average value over 24 hours C 352

mean rel. air humidity: 24 hour/1 month % 95/ 90

Installation altitude above sea-level m 10002

2 higher values on request

Degrees of protection against accidental contact and foreign objectsaccording to IEC 60529

Main electric circuits IP65

Drives IP2X1

Low-voltage cabinet IP3X1

Cable connection compartment IP3X1

1 optional IP5X



GHA | Assembly Instructions 17GHA | Assembly Instructions 17

3 Packaging, transport, storage

3.1 Shipping units

Delivery is effected in terms of prefabricated single switchgear panels. Onetransport unit consists of max. 2 individual switchgear panels which are fas-tened to the pallet.

The busbar compartment with three-position switch, the circuit-breaker com-partment, the drive mechanisms and the supporting structures are mountedready for connection and routine-tested. The individual busbar links are mount-ed on site.

The low-voltage cabinets are assembled in the factory or supplied as acces-sories, depending on the customers requirements.

If packed exclusively for truck transport, the panels are delivered on a pal-let with PE protective film.

For sea transport, the units are packed in sealed aluminium foil with desic-cant and in a closed wooden case with tightly closed wooden base (alsofor container transport).

In case of air transport, the panels are packed in wooden crates with aprotective PE film hood (dust protection) or in wooden crates, also withclosed wooden bases, however without protective hoods (dust protec-tion).

Important:The weight of the entire transport unit is indicated on the packaging.

3.2 Transport

Make sure that the transported unitsdo not slip or tilt during transport ofthe panels.

(Fig. 3.1). If necessary, nail thetransport pallet to the loading plat-form.

Packaging

Fig. 3.1Do not tip the transport units


5 C

+ 40 C

Fig. 3.3Diagram showing the storage conditions

3 Packaging, transport, storage

The panel may only be transported on a pallet. The entire length of the forksmust be placed under the transport unit (Fig. 3.2).

Handle shipping units carefully when unloading and unpacking them.

Shipping units must be checked upon receipt. Any damage which mayhave occurred in transit must be recorded and reported to the manufac-turer immediately.

Check completeness of consignment based on the transport documents.

The supplier must be notified in writing without delay about any devia-tions.

3.3 Storage

Warning!Sufficient stability and evenness of the supporting area (floor) mustbe ensured.

If the panels are not installed immediately after delivery, they can be stored inpacked condition under the following conditions:

Panels must be stored in vertical position, and must not be stacked.

Storage only admissible indoors

Panels and accessories must be packed in a wooden crate and sealed inaluminium foil with a desiccant inside (storage period max. 2 years afterdate of packaging).

Transport using a forklift truck

Delivery

Fig. 3.2Transport using a forklift truck

GHA | Assembly Instructions 19GHA | Assembly Instructions 19

4 Installation of panels

4.1 Safety provisions and instructions for assembly

The switchgear panels may only be installed and assembled by the manufac-turers staff or by persons who have been certified for this work.

Warning!Comply with the safety provisions in Chapter 1.

Warning!Risk of accidents in the switchgear compartment!Pay attention to flooring ducts!

Warning!Danger due to insufficient dielectric strength of high-voltage con-nections in case of assembly under aggravated ambient conditions.During assembly of the busbar link and the high-voltage connec-tions, it is essential to avoid condensation, dirt and dust deposits.On installation, the ambient temperature must be 10 C.

The GHA switchgear panels are delivered with the circuit breaker set toOFF, the energy storing device released and the isolating and earthingswitch set to OFF.

Warning!Danger of injury within the vicinity of the drive due to movableparts! The energy storing device of the circuit-breaker must not betensioned with the operator interface cover removed (see Chapter4.4).

Important: Switchgear panels with pressure relief duct (see Chapter 7.2): The pres-

sure relief duct must be installed before positioning the panel on the baseframe.

For all screw connections which are not defined directly in the assemblydescription, the tightening torques mentioned in the Annex must be used.

Before starting assembly, comply with the design drawings included withthe shipment.

4.2 Requirements regarding the switchgear room

Before installing the switchgear panels, make sure that the switchgear room ischecked according to the switchgear documentation (Fig. 4.1):

Check floor openings for high-voltage and low-voltage cables.

Check position of base frame.

The load-bearing capacity of the fastening areas must correspond to theweight of the switchgear (perform a stress analysis of the building).

Observe the minimum clearance between the switchgear and the wall ofthe building (Fig. 4.24.4).

Check base frame for dimensions and positional tolerances.

Before the switchgear is positioned at its site of installation, check that the fas-tening points are level. The unevenness must not exceed 1 mm/meter and 2 mm difference in height over the entire switchgear.


100

500

1194

41

180

(800/900)

900/1000 900/1000 600/800 600/800

5050

50100

5

2 3

6

2

7

8

14



432

5

1700

1340

1194

91(900)1000 900

(800)800 600

35

1

660 660 460

175

41

4

Fig. 4.1Representation of the various panel widths (see also Chap. 2.3)1 Cooler attachments2 Rear busbar tank in case of double busbar panels3 Floor opening for high voltage cables4 Panel securing points5 Floor opening for low voltage cables

Fig. 4.2Position of base frame and floor openings (example: double busbar switchgear)1 Rear gap cover2 Base frame of steel3 Floor opening for high-voltage terminals4 Wall of the building5 Possible cross-bracings6 Side plate7 Cooler attachments8 Extension of side plate for double busbar systems



Fig. 4.3Example for the position of panels with single busbar in the switchgear room

100 1700 1340

1000

2400

600

500 2100

600

2780

1000

1860

1700

Fig. 4.4Example for the position of panels with double busbar in the switchgear room


4.3 Transporting the panels on the construction site

Warning!Make sure the rope/chain or U profile is strong enough to bear theweight of the panel. The specific regulations applicable for hoistingequipment must be complied with.

Warning!On lowering the panels, make sure that the supporting platform issufficiently stable and even.

Warning!Risk of tipping over. During transport, pay attention to the weightdistribution. The center of gravity is at the gas tank level in the up-per part of the switchgear panel. Never move panels without usingtransport aids.

4.3.1 Transport on the crane hook

1. Remove transport packaging(protective films).

2. Attach rope/chains to the jackrings located on the busbar tank(Fig. 4.5).

Important:The ropes must have the followingminimum length: L 900 mm

3. Release the transport fasteningof the panel from the transportpallet (Fig. 4.5, item 1).

4. Lift the panel carefully with thecrane.

5. If necessary, mount transportrollers (Fig. 4.6). Description ofassembly, see following page.

6. Lower the panel slowly to thefloor at its place of destination.


Fig. 4.5When lifting, make sure that at least theminimum rope length L is used.1 Transport fastening device

Fig. 4.6Mounting the transport rollers



1

L 900



4.3.2 Transport using the transport rollers

For transport on the floor, a frame must be mounted to the left and right of theswitchgear panel (not included in scope of supplies).

1. Insert locating pins of transport frame into the lateral bore-holes in thesupporting structure of the switchgear panel, and secure them by meansof the two knurled screws (Fig. 4.7, item 2).

2. Actuate front toggle lever (3) to its stop in the direction of the arrow.Press the button on the rear lifting device (4) and actuate lever to its stopin the direction of the arrow till it reaches its stop. The panel is lifted.

4.3.3 Transport of the panels on the base frame

1. Place two U profiles (not included in scope of supplies) on the baseframe as traversing aid and block them by (lower) stops against slipping inthe base frame (Fig. 4.8, item 1).

2. Adjust the distance between the two U profiles in accordance with thepanel width. When positioning the panels, make sure that the transportrollers are located in the U profiles.

3. Move panel onto the base frame, align front edge (see space assignmentplan) and lower the panel.

4. Remove transport rollers and U profiles.

Assembly

1 2

3 4

5

Fig. 4.7Mounting the transport rollers1 Transport frame2 Knurled screws3 Front toggle levers4 Rear lifting device with push-button5 Switchgear panel

1

2 3

Fig. 4.8Moving the panel on the base frame1 U profile with fastening stops as traversing aid2 Transport frame3 Switchgear panel


4.4 Removal of covers

4.4.1 Cable compartment interlock (optional)

An additional interlock prevents the cable compartment cover from being re-moved if the earthing switch is not switched ON.

1. Charge the energy storing device of the circuit-breaker (Fig. 4.9, item 3).Earth the outgoing feeder cable (see GHA Operating Manual).

2. Push interlocking slide of cable compartment cover (2) upwards.

At the same time, the cable compartment cover is unlocked and actuation ofthe earthing switch (1) interrupted mechanically and electrically.

Important:After removing the cable compartment cover, it is impossible to push the slide(2) down. The earthing switch remains locked.

Push interlocking slide (2) down after the cable compartment cover has beenmounted.

The earthing switch (1) can be switched off mechanically and electrically.

Locking the cable compartment cover

Unlocking the cable compartmentcover


Interlocking matrix Earthing switch Cable compart-ment cover

Cable com-partmentcover

screw-fastened unlocked

removed locked

Earthingswitch

ON unlocked

OFF locked

1

2

3

Fig. 4.9Unlock/lock cable compartment cover1 Insertion opening for manual operation of the earthing switch2 Slide used to lock/unlock the cable compartment cover3 Charge the energy storing device of the circuit-breaker drive manually (as long as

no supply voltage is applied)





4.4.2 Removing the cable compartment cover and the operator interface cover

Important:Store screws, bolts and covers carefully for subsequent reuse.

1. Open front frame:

Front frame without window pane:Release the two securing bolts (Fig. 4.10, item 1).

Front frame with window pane:Open lock by means of the double-bit key (Fig. 4.11, item 2).

Then, open the front frame by swinging it to the left.

2. Unscrew the two securing bolts from the cable compartment cover (3).

3. First pull the cable compartment cover up, then forwards to remove it.

Removing the cable compartmentcover

1

1

3

4

3

4

2

Fig. 4.10Front frame without window pane1 Securing bolts of the front panel3 Securing bolts of cable compartment

cover4 Hinged front frame

Fig. 4.11Front frame with window pane2 Lock and double-bit key3 Securing bolts of cable compartment

cover4 Hinged front frame


1 2

34

5

Fig. 4.12Removal of covers1 Hinged front frame2 Operator interface cover3 Cable compartment cover4 Cable duct cover5 Screw fastening of the operator interface cover (4x)


1. Release screw fastening of the operator interface cover (Fig. 4.12, item 5)on the 4 fastening points and remove cover.

Important:Identify panel in accordance with the rating plate on the operator interface toavoid confusion.

2. Release the fastening of the two lateral covers (4) of the right-hand cableduct and remove covers.

Unscrewing the covers(only if required)



4.5 Installation of panels

Important:The position of the first panel is decisive for placement of the subsequentpanels, thus it is essential that measuring is effected with the utmost preci-sion.

1. Place the panel on the base frame according to the switchgear-specificspace assignment plan (see Chapter 4.3).

2. Align panel. Check the panel front for correct horizontal and vertical posi-tion. If applicable, lift the panel and place shims in the direct vicinity of thefastening areas, until the horizontal position has been reached.

3. Position the following panel on the base frame next to the first panel ac-cording to the switchgear-specific space assignment plan.

4. Remove covers from the panels as described in Chapter 4.4.

5. Check the electrode ring in thesilicone sleeve (Fig. 4.13):

The electrode ring must beinserted firmly in the siliconesleeve according to the illus-tration.

The position and location ofthe electrode ring must cor-respond to the drawing.

6. Clean identified insulating sur-face of the busbar connectionusing acetone and coat entiresurface uniformly with a thin filmof special grease (AGS001983-01). To this effect, useappropriate gloves and applygrease on the insulating sur-faces in the direction of theconductive layer edge. Subse-quently, do not touch the coat-ed insulating surfaces again(Fig. 4.14 and 4.15).

Important:Make sure the insulating surfaces are absolutely clean.

Preparation of the busbar link

1

1

Fig. 4.14Busbar support1 Clean and apply grease only to the

identified insulating surface

Fig. 4.15Silicone sleeve1 Clean and apply grease only to the

identified insulating surface

1

2

Fig. 4.13Check electrode ring of the siliconesleeve1 Electrode ring2 Silicone sleeve


3 2

1

Fig. 4.161 Check clamping contact screws2 Clean and grease contact points3 Insert contact tips


7. Before assembly, the following setting of the clamping contacts (Fig.4.16) which was made in the factory, must be checked once more: Tighten the two clamping contact screws loosely to their stop, then screwthem back by half a turn.

8. Clean and grease busbar contact surfaces and contact points on theclamping contact (see Chapter 12.2).

9. Carefully slip the clamping contacts into the busbar tubes of the left-handpanel.



10. Push panels carefully together. Clearance between busbar tanks: 153 1 mm (Fig. 4.18)

11. Connect panels to one another (assembly drawing AGS 000913-01):

Front panel screw fastening: Screw-fasten the 4x self-locking screwsM8 to their final stop (Fig. 4.17, item 1).Panels with panel width of 900 or 1000 are screwed with additionalcompensating covers (see Chapter 4.6).

Rear panel screw fastening: Screw-fasten connecting link on the jackring plate 2 x Self-locking screw connections M8 (Fig. 4.17 and 4.18, item 2each)

Screw-fastening the panels to oneanother

1

2

Fig. 4.17Screw-fastening the panels to one another1 Front panel screw-fastening2 Rear panel screw fastening with connecting link

1531

1

Fig. 4.18Clearances between switchgear panels1 Rear panel screw fastening with con-

necting link

4.6 Compensating covers for the panel front

Compensating covers are only required for panels with a panel width of900/1000 mm (see also switchgear-specific documentation), panels with apanel width of 600/800 do not require compensating covers in-between eachother. The covers are always supplied in preassembled condition as acces-sories. The compensating cover versions are subdivided in accordance withthe following dependencies:

Height of low-voltage cabinet 800 mm or 1200 mm

Nominal width of compensating cover 50 mm or 100 mm, depending onpanel arrangement (see Table)

The compensating covers must be screw-fastened from the adjacent panelson the left-hand and right-hand sides using 6 self-cutting screws M8 each(Fig. 4.19).

Assembly


A

1

2

3

4

5

50 100

4 4 1/23/5

900/1000

A

Fig. 4.19Compensating covers in the panel front1 Upper compensating cover, width

100 mm 2 Lower compensating cover, width

100 mm

3 Lower compensating cover, width 50mm

4 Screw connection M8 (12 x per cov-er)

5 Upper compensating cover, width 50mm

Required nominal width of thecompensating cover depending onthe panel arrangement

A A


Panel; panelwidth [mm]

Panel width, adjacent panel [mm]

Nominal width, compensat-ing cover (left-hand or

right-hand) [mm]

900/1000600/800 50

900/1000 100

GHA | Assembly Instructions 31GHA | Assembly Instructions


4.7 Busbar link: B link

1 2 3 4 5 6

Fig. 4.20Overview of busbar link 1 Busbar support with insulating surface2 Busbar3 Spacer pin

4 Retaining clip5 Busbar clamping contacts6 Silicone sleeve with securing half-

shells

Detail drawing of a B-link

Fig. 4.21Busbar connection for upper and rear busbar without covers - overviewupper busbar = BB2 rear busbar = BB1

L1

L2

L3

L1L2

L3

SS1

SS2

BB1

BB2

Assembly drawing for single and double busbar: AGS 002 268-01

1. Use the tool provided to this effect to compress the silicone sleeve (Fig.4.22/4.23) and position the clamping contacts as shown in Fig. 4.24.

Important: The two lugs of the upper clamping contact must be located between the

busbar tubes.

Check insulating areas again for absolute cleanliness and correct lubrica-tion (see Chapter 4.5).

2. Tighten the clamped connection with a torque of 8 + 1 Nm. Release sili-cone sleeve and remove tool.

3. Clean spacer pins (accessories, Fig. 4.25, item 1) and welding studs andcoat them with a screw locking compound (see Chapter 12.5). Screw-fasten spacer pin onto the welding studs. Slip retaining clip onto the twopins. The sides of the retaining clip must butt against the retaining lugs ofthe securing half-shells.

Subsequently, thread the cage with the cup springs and fasten retainingclip using a M8 self-locking nut. The insulating surfaces of the siliconesleeve and the busbar support must be compressed by the retaining clip.

Assembly




Fig. 4.22Tool to compress the silicone sleeve

Fig. 4.23Tool to compress the silicone sleeve (asan alternative)

Assembly tools

1

8 1 Nm

0-3mm

2

3

4 4

1(121,5 Nm)

23

4(121,5 Nm)

Fig. 4.25Fastening of silicone sleeve1 Spacer pin2 Retaining clip3 Cup spring package4 Nut

Fig. 4.24Busbar link1 Tool2 Clamping contacts3 Busbar4 Locating lugs


4. Mount the cover of the busbar link (Fig. 4.26).Cover of busbar link


Panel width, adja-cent panel, left-hand

[mm]

Panel width [mm]

Assembly drawing

SBB DBB

without pressure relief duct (see Chapter 7.1)

600/800600 AGS000912-02 AGS001960-01

800 AGS000912-02 AGS001960-04

900/1000 600/800 AGS002608-01 AGS002605-01

600/800 900/1000 AGS002609-01 AGS002606-01

900/1000 900/1000 AGS002610-01 AGS002607-01

with pressure relief duct (see Chapter 7.2)

600/800600/800 AGS002115-05

900/1000 AGS002115-03

900/1000600/800 AGS002115-04

900/1000 AGS002115-06

1

Fig. 4.261 Cover of the upper busbar link



4.8 Panel screw connection to the base frame

Assembly drawing AGS 002206-01

Important:The switchgear panels may only be screw-fastened to the base frame oncethey have all been installed and adjusted.

Cut thread M8 in the base frame at the securing points provided to this effect(Fig. 4.27). To do so, first drill a hole of 6.8. Tighten panels in 2 positions atthe front and rear sides.

If the rear securing points are not accessible, e.g. due to the voltage trans-former, fastening links (Fig. 4.27 and 4.28) can be mounted. Screw-fasten thetwo fastening links to the panel supporting structure.

Cut thread M8 in the base frame at the securing points provided to this effect.To do so, first drill a hole of 6.8.

Additional securing points (optional)

1

1

42

3

Fig. 4.27Panel fastening to base frame1 Fastening points2 Base frame3 Cable duct4 Fastening links (see Fig. 4.28)

1

2

3

Fig. 4.28Rear fastening links1 Rear base frame2 Fastening link3 Screw fastening



1

2

34

5

6 ( 13 mm)

Fig. 4.29Mounting the earth bar and connecting bar1 Earth bar2 Support bracket3 Connecting bar4 Screw-fastening of support bracket tio earth bar and connecting bar5 Screw fastening the support bracket to the panel6 External connecting point for the earth bus of the switchgear

4.9 Mounting the earth bus

Earth bars are screw-fastened between the switchgear panels using connect-ing bars (Fig. 4.29, item 3).

1. Clean all contact areas of the connecting bar and the appropriate earthbar in the switchgear panels and coat them with lubricant KL (see Chap-ter 12.2).

2. Slip the connecting bar into the adjacent panel's supporting structurethrough the cutout in the panel.

3. Screw-fasten the connecting bar with the support brackets on both sides,to the earth bar in question and screw-fasten the support brackets to thepanel.

4. Mount the connecting piece for switchgear earthing (item 6). Connect theearth bus to the earthing system of the switchgear building. Connectinglines and screw accessories are not included in the scope of supplies.

Connecting piece for switchgear earthing: AGS 000294-03

The earth bus should be connected to the building's earthing system by earth-ing lines at least at the first and at each tenth panel of the switchgear.

Important:Observe the specific standards referring to earthing systems which apply inthe country the switchgear is installed.

Panel width [mm]

Adjacent panel,right-hand

[mm]Assembly drawing

600 (also for right-hand end panel)600/800

AGS 000294-01800 (also for right-hand end panel) AGS 000294-02

600 900 AGS 000294-04900 (also for right-hand end panel) 600/800 AGS 002510-01

900 900 AGS 002510-02

1000600/800 AGS 002510-03

900 AGS 002510-04


5 Busbar attachments

5.1 Safety provisions

Warning!When performing assembly work on busbar attachments, the appro-priate isolating device must be in earthed position (see OperatingInstructions).


5.2 Mounting surge arresters

Important: Remove grease and silicone from the contact surfaces and insulating ar-

eas inside the inner cone-type sockets in the tank and on the surge ar-resters before assembly.

Observe the instructions for assembly of the surge arrester.

1. Clean and grease contact surfaces on the surge arrester and inside theinner cone-type socket (see Chapter 12.2).

2. Clean the insulating areas of the surge arrester and in the inner cone-typesocket carefully, and apply a uniform film of special paste (see instructionsfor assembly of the surge arrester).

3. Slip surge arrester in correctly axial position into the inner cone-type sock-et and screw-fasten it.

4. Screw-fasten the earthing cable of the surge arrester on the busbar tank.

Fig. 5.1Surge arresters


5.3 Mounting voltage transformers

Important: Remove grease and silicone from the contact surfaces and insulating ar-

eas on the inner cone-type sockets in the tank and on the voltage trans-formers before assembly.

Observe the instructions for assembly of the voltage transformers.

The weight of the transformers must be taken into consideration! Supportthe transformer or secure it by attaching a crane hook to the transformerjack rings.

1. Clean and grease contact areas on the transformer connector and insidethe inner cone-type socket (see Chapter 12.2).

2. Clean the insulating areas of the transformer connector and inside the in-ner cone-type socket carefully, and apply a uniform film of special paste(see assembly instructions for voltage transformer).

3. Slip voltage transformer in axially correct position into the inner cone-typesocket (2) and screw-fasten it (Fig. 5.2, item 2); 4 x M8 self-locking nuts.In addition, fasten the transformer on the fixing bracket (4).2 x M8 self-locking screws

4. Connect the transformer secondary lines (plug-in contacts) (6). Complywith the marking. Fasten the protective hose (tighten nut by hand and fixcables by means of cable clamps, 7 and 8).

5. Mount cover plate (5) above the transformer cables. 2 x M5 Torx screws



12 4

5

3

3

7

68

Fig. 5.2Assembly / disassembly of busbar voltage transformer1 Attachment with isolating device on busbar2 Connecting socket and flange fastening3 Voltage transformer4 Fixing bracket5 Cover plate for transformer wiring6 Terminal connection of transformer cables7 Securing by means of cable clamps8 Fastening the protective hose

Rated voltage Ur [kV] Assembly drawing

24 AGS001861-02

> 24 AGS001861-01

The voltage transformers are inserted into the inner cone-type sockets in thebusbar tank from the top (optional, Fig. 5.3).

Assembly is effected as described previously.

Additional attachment variant forbusbar voltage transformers:



Fig. 5.3Voltage transformer attachment from the top

Rated voltage Ur [kV] Assembly drawing

24 AGS002260-02

> 24 AGS002260-01


6.1 Assembly

The low-voltage cabinets are either supplied as accessories or may already bemounted to the panel, depending on the transport requirements.

1. Remove transport protection covers from the interface between drivecompartment and low-voltage cabinet. All the wiring with terminals for thelow-voltage cabinet must be located in the drive area below the uppersheet metal edge.

2. Assign the low-voltage cabinet to the appropriate panel. Remove thepackaging of the low-voltage cabinet and place it on the lifting table (Fig.6.1). Raise lifting table until the low-voltage cabinet is above the drivearea.

3. Carefully push the low-voltage cabinet onto the panel above the drivearea, align it and screw-fasten it to the panel. To this effect, open theswitch cabinet door using the double bit key.Lower screw-fastening (1). 4 x M8 self-locking screws; rear screw con-nection (2): 2 x M8 self-locking screws

4. Screw-fasten the low-voltage cabinets to each other at the sides (3). M8 ratchet connection with spacer between the low voltage cabinets


Fig. 6.1Assembly of low-voltage cabinet1 Lower screw-fastening2 Rear screw fastening3 Lateral screw-fastening4 Lifting table5 Low-voltage cabinet6 Spacer between cabinets

1

3

2

4

5

1

2

3

6

Height of low-voltage cabinet [mm] Assembly drawing

800 AGS001650-01

1200 AGS001650-02

Top view



6.2 Connecting the control lines

1. Plug terminals of drive wiring onto the terminal strips in the low-voltagecabinet (Fig. 6.2) according to the codes provided.

2. Close the opening in the base of the low-voltage cabinet to the drive areausing a cover plate (2). 5 x M6 self-locking screw connections.

1. Route the secondary lines for the intra-panel wiring through the lateralrubber sleeves of the low-voltage cabinet (Fig. 6.3).

2. The ring circuits are designed with connectors and are connected to theappropriate terminal strips in the low-voltage cabinet according to theconnector designations (or the circuit diagram) (2).

Connecting the ring circuits:

Connect internal control lines of panel:


1

23

Fig. 6.21 Drive wiring to terminal strip in low-voltage cabinet2 Cover plate3 Fastening of cover plate

1

2

Fig. 6.3Ring circuits between panels1 Bushing in the wall of the low-voltage cabinet2 Connection of ring circuit to terminal strips



Customized low-voltage cables for control and measurement purposes can beplaced on the inside of each panel on the right-hand side (Fig. 6.4).

1. Route external lines from the cable basement to the cable connectioncompartment of the panel (1) and route them in the right-hand cable ductof the panel to the low-voltage cabinet (3). Fasten cables to the panel us-ing cable clamps (2).

2. Connect external cables to the terminal strip in the low-voltage cabinetaccording to the circuit diagram. Additionally, ground shielded lines on thecable supports.

3. Re-fasten metallic cable duct covers in the supporting structure (4).4 x M8 self-locking screws.

Placing external control lines in theswitchgear panel

Fig. 6.4Placing external control cables1 External control cables2 Cable clamp3 Low-voltage cabinet4 Metallic cable duct covers

1

1

2

3

4

42 GHA | Assembly Instructions42 GHA | Assembly Instructions

7 Switchgear termination

1

2

3

4

5

100

180

1700

500

6

Fig. 7.1Design example: Switchgear located in the left-hand corner of the room1 Switchgear2 Lateral gap cover (see Chapter 7.1.4)3 Side plate (see Chapter 7.1.2)4 Side plate extension for double busbar switchgear panels (see Chapter 7.1.3)5 Rear gap cover (see Chapter 7.1.4)6 Wall

7.1 Switchgear without pressure relief duct

(Accessibility in acc. with IEC 62271-200: IAC AFL)

7.1.1 Overview

Shown (Fig. 7.1): The switchgear is accessible from the front and on the right-hand side (the switchgear is located in the left-hand corner of the room).

Additional variants (not shown):

The switchgear is accessible from the front and from the left-hand side(the switchgear is located in the right-hand corner of the room).

The switchgear is accessible from the front and from both sides (theswitchgear is located against the wall of the building, but not in a cornerof the room).

Important:Comply with the appropriate documentation for the switchgear. It defines theapplicable variant in accordance with the customer's requirements.

All individual parts are included in the accessories. Design is identical for theright-hand and left-hand sides.

7.1.2 Attaching the right-hand or left-hand side plates

Height of low-voltagecabinet [mm]

Assembly drawing of side plateleft-hand right-hand

800 AGS 000630-01 AGS 000630-031200 AGS 000630-02 AGS 000630-04



If applicable, remove the covers of the lateral cable ducts in the cable connec-tion compartment (Fig. 7.2, item 3).

1. Screw-fasten fire-protection board (2) and base plate (1) to one another(11); 2 x M8 self-locking screws.

2. Screw-fasten (10) base plate (1) to the last panel (8); 2 x M8 self-lockingscrews.

3. Fasten base plate to the base frame (9). 2 x M8 self-locking screws. Cutthread M8 in the base frame.

4. Screw-fasten top and bottom side plate sections (4) to one another (6); 6x M8 self-locking screw connections.

5. Mount complete side plate. To this effect, screw-fasten:

side plate to base plate (1); 5 x M8 self-locking screws.

side plate to panel (8); 9 x M8 self-locking screws.

side plate to low-voltage cabinet (7) (see also Chapter 6.1); 3 x M8self-locking screws.

rear side wall fastening (5) to the retaining plate on the panel; 3 x M8screw connection (only required for SBB, not for DBB).

9

2

5

6

8

7

3

5

4

2

11

1

1111

110

6

Fig. 7.2Attaching the right-hand side1 Base plates2 Fire-protection plates3 Cable duct cover4 Top and bottom side plate sections5 Rear screw fastening of side plate to panel6 Screw fastening of both side plate sections

7 Screw fastening of side plate to low-voltage cabinet8 Screw fastening of side plate to panel supporting structure9 Screw fastening of base plate to base frame10 Screw fastening of base plate to panel11 Screw fasting of fire-protection board to base plate



7.1.3 Extension of side plate in double busbar switchgear

In double busbar switchgear, the side plate (Chapter 7.1.2) is extended to therear (Fig. 7.3).

1. Mount side plate in accordance with Chapter 7.1.2.

2. Screw-fasten upper and lower cover bracket (5) and upper and lower ter-mination plates (1 and 2) to the side plate (4).

3. Mount the rear fastening link (3).

1

2

3

5

4

Fig. 7.3Side plate extension for double busbar switchgear1 Upper termination plate2 Lower termination plate3 Fastening link with screw connection4 Screw connection of termination plates and cover bracket with side plate5 Upper and lower cover brackets

Height of low-voltagecabinet [mm]

Assembly drawing of side plate left right

800 AGS 000 633-01 AGS 000 633-031200 AGS 000 633-02 AGS 000 633-04

7.1.4 Gap covers

The lateral gap cover is installed be-tween the end panel and the lateralwall of the building (Fig. 7.4).

The nominal width of the gap coveris always 100 mm.

1. Insert base plate (6) and screw-fasten it to the panel.1 x M8 self-locking screw

2. Fasten base plate to the baseframe (8) (front and rear).2 x M8 self-locking screws.Cut thread M8 in the baseframe.

3. Screw-fasten upper and lowergap cover (1) to the panel.11 x M8 hex. bolts

4. Apply gap cover (2) on wall sideas shown in the drawing andmark securing bore-holes on thewall of the building and on themounted gap cover.

5. Remove gap cover on wall side.Drill securing bore-holes for themounted gap cover ( 4.5) andfor the wall of the building ( 10).Subsequently, fit dowel pins inthe wall of the building.

6. Screw-fasten gap cover on wallside to the wall of the building.11 x M8 hex. bolts

7. Screw-fasten both gap coversto one another.11 x M5 hex. bolts.



Front lateral gap cover Height of low-voltage cabinet

[mm]

Wall clearance[mm]

Assembly drawing of gap cover

left-hand right-hand

800100

AGS 002341-01 AGS 002341-02

1200 AGS 002341-03 AGS 002341-04


1

2

4

1

2

3

5

8

7

6

Fig. 7.4Lateral gap cover (shown on the left-hand switchgear termination)1 Gap cover on panel side2 Gap cover on wall side3 Screw connection of gap covers: M5

hex. bolt4 Screw-fastening to panel: M8 hex.

bolt5 Wall fastening: dowel and M8 hex.

bolt6 Base plate7 Screw-fastening to panel8 Screw-fastening to base frame



Rear gap cover

The rear gap cover is installed be-tween the mounted side plate andthe rear wall of the building (Fig.7.5).

The nominal width of the gap coveris 100 mm for single busbar and500 ( 300) mm for double busbar.Assembly is performed identically.

1. Screw-fasten upper and lowergap cover (1) to the side plate.11 x M8 hex. bolts

2. Apply gap cover (2) on wall sideas shown in the drawing andmark securing bore-holes on thewall of the building and on themounted gap cover.

3. Remove gap cover on wall side.Drill securing bore-holes for themounted gap cover ( 4.5) andfor the wall of the building (10).Subsequently, fit dowel pins inthe wall of the building.

4. Screw-fasten gap cover on wallside to the wall of the building.9 x M8 hex. bolts

5. Screw-fasten both gap coversto one another.9 x M5 hex. bolts.

Height oflow-voltage

cabinet [mm]

Wall clearance

[mm]

Busbarsystem

Assembly drawing for gap cover


800100 SBB AGS 001 967-01 AGS 001 967-02300 DBB AGS 001 967-05 AGS 001 967-06

1200100 SBB AGS 001 963-01 AGS 001 963-02300 DBB AGS 001 963-05 AGS 001 963-06

800500 DBB

AGS 001967-07 AGS 001967-081200 AGS 001963-07 AGS 001963-08

3

5

2

1

4

1

34

2,5

100+30

Draufsicht

Wan

d

Fig. 7.5Rear gap cover (shown for left-handswitchgear termination, 100 mm wallclearance)1 Front gap cover2 Gap cover on wall side3 M5 hex. bolts4 M8 hex. bolt5 Fastening to wall of the building:

dowel and M8 hex. bolt

Top view

Wal

l

7.2 Switchgear with pressure relief duct

(Accessibility in acc. with IEC 62271-200: IAC AFLR)

7.2.1 Overview

Switchgear panels with pressure relief duct are accessible on all sides andcan thus be located centrally in the room (Fig. 7.6).

The switchgear is accessible from the front, the left-hand and right-hand sidesand from the rear.

Important:If the distance between the switchgear and the wall of the building is lessthan 800 mm, the company operating the switchgear must cordon off thisarea during normal switchgear operation.

Important:The pressure relief duct must be mounted before the panel is positioned onthe base frame. After installation of the panels, mounting may no longer bepossible in part.

The attachments for the pressure relief duct are included in the accessories.

The pressure relief ducts and the side plates have to be attached on the con-struction site.

The terminal for a separate, customized pressure relief duct is integrated in theleft and/or right side plate (see Chapter 7.2.4 and the switchgear-specific cir-cuit documentation)

The customized pressure relief duct is not included in the scope of supplies.


1

2

3 4

2

8

00

520

1595

180 180

5

Fig. 7.6Switchgear is located centrally in the room1 Switchgear2 Side plates (see Chapter 7.2.3 und 7.2.4)3 Rear pressure relief duct (see Chapter 7.2.2)4 Connection for customized pressure relief duct (see Chapter 7.2.4)5 Wall



7.2.2 Attachment of the pressure relief duct

The data for the attachment are indicated in the appropriate assembly draw-ings.


Fig. 7.7Panel with pressure relief duct

Panelwidth[mm]

Assembly drawing

Pressure relief duct Attachment

600 AGS002105-02

AGS002110-05800 AGS002105-04

900 AGS002105-06

1000 AGS002105-07


7.2.3 Additional reinforcements

Assembly drawing: AGS 000 795-03

Additional reinforcements of the side plate are necessary if the switchgear hasto meet the requirements in accordance with IAC AFL(R) for 40 kA.

1. Mount the additional reinforcing section on the connecting point betweenthe upper and the lower side plates (Fig. 7.8, item 1).

2. Fasten U profile in the lower side plate (2). Drill rivet holes of 7 in theside plate and fasten the parts by rivets.

3. In addition, screw-fasten the side plate to the base plate (3). To do so,drill first a hole of 4 x 10 in the side plate.



1

2

3

920

Fig. 7.8Additional reinforcements for requirements in acc. with IAC AFL(R) 40 kA (shown onthe left-hand side wall)1 Reinforcing section2 U profile3 Additional screw fastening

50 GHA | Assembly Instructions50 GHA | Assembly Instructions


Height of low-voltagecabinet[mm]

Assembly drawing for side plate


with terminal1 without terminal1 with terminal1 without terminal1

800AGS 002130-01+AGS 002175-01

AGS 002123-02+AGS 002124-02

AGS 002130-02+AGS 002175-02

AGS 002123-01+AGS 002124-01

1200AGS002130-03+AGS002175-01

AGS002123-04+AGS002124-02

AGS002130-04+AGS002175-02

AGS002123-03+AGS002124-01

Fig. 7.9Attachment of the right-hand side plate with or without terminal for a separate, customized pressure relief duct (1)

1

520

7.2.4 Mounting the side plates

The data for the mounting the side plate are indicated in the appropriate as-sembly drawings.

1 for a separate, customized pressure relief duct


1

2

3

Depending on customer requirements, the panels can be equipped at choicewith outer cone-type bushings or inner cone-type sockets.

Optionally, the panels can also be supplied with high-voltage terminals forconductor bars (see switchgear-specific documentation).

8.1 Cable connection compartment with base plates (optional)

The cable connection compartment of a panel can be designed optionally withmounted base plates. Thus, the cable connection compartment and the cablebasement are separated from each other.

1. For assembly of the high-voltage cables, remove the front base plates andthe plastic sleeves (Fig. 8.1).

2. Cut the plastic sleeves to fit the cable diameter and slip them over the ca-ble before mounting the cable connectors.

3. After mounting the cables, position plastic sleeves, then reinsert andscrew-fasten the removed base plate.

Base plates, preassembled in panel

8 High-voltage connection

Fig. 8.1Panel with base plates1 Base plate2 Plastic sleeves3 High-voltage cable (cable support not shown)



8.2 Outer cone-type termination

Standard design of the bushings for cable termination:

EN 50181, Terminal type C (screw-type contact with internal thread M16and reinforced conductor pins for 1250 A rated current)

for cable screw-type plug


L1L2

L3L1

L2

Fig. 8.21 x outer cone-type bushings per phase with one double cable connection each

L1L2

L3

L2

L1

L1

L1

L1

Fig. 8.32 x outer cone-type bushings per phase with one triple cable connection each



Practically all the commercially available cable connection systems (fully insu-lated, metal-enclosed or partially insulated) can be mounted to the switchgear.

Tools and accessories (cable clips, screws, spring washers etc.) for the as-sembly of the cable connection systems (cable connectors) are not included inthe scope of supplies.

The switchgear is accessible from the front to enable assembly of the cableconnection systems.

To this effect, remove the front cable compartment covers (see Chapter 4.4).

Warning!The positioning of the adjustable cable support and the fixation ofthe cable have to be carried out in a way so that mechanical stressapplied to the outer-cone bushings is avoided. The bushings maybe damaged due to inadmissible stress, so that insulating gas canescape.

635,5

746,

4

600

191 191

96

800

229 229

564

590 7

40

L1 L2 L3

L1 L2 L3

Fig. 8.4Dimension drawings for outer cone-type bushings with one termination per phase (top)and with two terminations per phase (bottom)

Dimension drawings


1. Put the adjustable cable supports (Fig. 8.5, item 4) in the required posi-tion and fasten them (horizontally and vertically adjustable).

2. Mount cable connectors according to the instructions of the manufacturer.

3. Remove the protective transport caps from the bushings. Remove greaseand silicone from sockets using a cleaning agent (see Chapter 12.1).

4. Coat contact areas of Cu insert on the bushing and screw-type contactexternally with a thin grease film (see Chapter 12.2).

5. Treat insulating surfaces as specified by the manufacturer of the cableconnector. Slip cable connector onto the bushing. The cable connectionto the outer cone-type bushing (thread M16) must be tightened with amax. torque of 40 5 Nm. Observe manufacturers instructions.

6. If necessary, re-adjust cable support, align cables and fasten them to thecable support using cable clips.

7. Connect earthing cables (2) of cable and cable connector to the cablesupport (3). Coat contact surfaces (see Chapter 12.2).If surge arresters are provided, the switchgear can be equipped addition-ally with retaining plates to which the fasteners for surge arresters can bemounted.

The contact areas of the earth connections must be coated as de-scribed in the Annex.

For assembly, refer to the instructions of the manufacturer of the surgearresters!

Warning!Close vacant outer cone-type bushings with surge-proof caps (notincluded in the scope of supplies).

Cable assembly


1

4

5

2

3

Fig. 8.5High-voltage cable connector, outer cone-type, screw-type contact1 Screw-type contact2 Cable connector3 Earthing conductors4 Cable support, adjustable5 Cable clip



8.3 Inner cone-type sockets

Inner cone-type sockets acc. to EN 50181 can be standard equipment of thepanels.

Cable connectors, tools, accessories (cable clips, screws, spring washersetc.) are not included in the scope of supplies.

Important:When shrink-fitting cable end boxes, make sure that the cable connectionarea of the panel is not heated beyond the admissible service temperature.We cannot accept any liability for consequential damage (e.g. damaged ca-bles of the capacitive indicator) which might result from shrink-fitting compo-nents in the cable connection compartment using an open flame..

L1L2

L3

L1

4322

75

Fig. 8.6Inner cone-type cable connection with cable supports above base frame level

289

266

113

Fig. 8.7Inner cone-type cable connector with cable supports below base frame level (attachment on site)


(only required for models acc. to Fig. 8.7)

Assembly drawing AGS 003010-04

The individual parts are included in the accessories.

1. Screw-fasten sides to the supporting structure of the panel.

2. Mount the cable support.

Installation of the cable support

Fig. 8.8Attachment of cable support in case of inner cone-type connection design acc. to Fig.8.7


Installation of the base plates (optional and only for versions acc. to Fig. 8.7).

Assembly drawing AGS 003014-01.

The individual parts are included in the accessories.

1. Cut the plastic sleeves to fit the cable diameter and slip them over the ca-ble before mounting the cable connectors.

2. After mounting the cables, position plastic sleeves, then insert and screw-fasten the base plate.

Base plates in the accessories

1

2 3 4 (2)

Fig. 8.9Installation of the base plates1 Base tray2 Cable support3 Divided base plates4 Plastic sleeves

Warning!The positioning of the adjustable cable support and the fixation ofthe cable have to be carried out in a way so that mechanical stressapplied to the sockets is avoided! The sockets may be damageddue to inadmissible stress, so that insulating gas can escape.

1. Mount cable connector (Fig.8.10, item 2) according to theinstructions of the cable con-nector manufacturer.

2. Remove transport protectivecaps from the connector bush-ings (socket-contacts). Removegrease and silicone from sock-ets using a cleaning agent (seeChapter 12.1).

3. Slightly grease contact surfaceson the socket and on the cableconnector (see Chapter 12.2).

4. Treat insulating surfaces asspecified by the manufacturer ofthe cable connector.Insert cable connector in innercone-type socket (press down)and screw-fasten safely.Tighten screw fastenings M8with a torque of 153 Nm.

5. If necessary, re-adjust cablesupport (5), align cables andfasten them to the cable sup-port using cable clips (4).

6. Connect earthing cables (3) ofcable and cable connector tothe cable support (5).Coat contact surfaces (seeChapter 12.2).

Warning!Close unused sockets withsurge-proof dummy plugs.

If the metallic connector housingfeatures a conductive contact sur-face touching the metal enclosure ofthe switchgear panel (applies toPfisterer model, system CONNEX):Do not connect the cable's earth lineto the connector housing (contact-making). Make sure that the earth-ing line is connected directly to thecable support.

Connector shell with conductivecontact surface with reference toswitchgear's metal enclosure:

Cable assembly



1

2

3

4 5

Fig. 8.101 Socket contacts2 Cable connector3 Earthing conductors4 Cable clip5 Cable support

Fig. 8.11Connection of cable earthing line if ca-ble-type transformers are used


9 Replacement of transformers

1

2 3 4 5

4

Fig. 9.1Replace current transformers in case of outer cone-type terminal1 Outer cone-type bushing2 Current transformer3 Retaining plate4 Fastening of the transformer retaining plate5 Cable clamp

Warning!Risk of fatalities due to high voltage. The appropriate parts of theswitchgear must be isolated from the power supply and earthed.Refer to the safety provisions in Chapter 1.

9.1 Current transformer for outer cone-type connection

The current transformers for cable connections equipped with outer cone-typeconnectors can be replaced easily as required.

1. Isolate the outgoing feeder cable concerned from the power supply andearth it (see operating manual).

2. Remove cable compartment cover (see Chapter 4.4).

3. Remove cable connections (see Chapter 8).

4. Release transformer wiring in low-voltage cabinet and pull it back to thetransformers (Fig. 9.1, 2). Mark connection points in low-voltage cabinet.

5. Remove front transformer retaining plates (4).

6. Pull transformer with retaining plate off the bushing. Disconnect cableclamp fastening (5) of current transformers. Fasten new transformers tothe retaining plate using cable clips.

7. For fastening and wiring, reverse the above procedure.

Comply with the specified tightening torques (see Chapter 12.4).

Subsequently, connect cable connectors again and mount cable compartmentcover.

9.2 Current transformers for inner cone-type connection

The current transformers for cable connections with inner cone-type plugs(Fig. 9.2) can also be replaced as required. To this effect, contact the manu-facturers Service Center.

9.3 Voltage transformers

Warning!When performing assembly work on voltage transformers, the ap-propriate isolating device must be in earthed position (see Operat-ing Instructions).

1. Isolate the outgoing feeder cable/busbar concerned from the power sup-ply and earth it (see operating manual).

2. Provide access to the voltage transformer: Busbar: access from aboveOutgoing feeder cable: remove cable compartment cover (see Chapter4.4)

3. Disconnect transformer cables from low-voltage cabinet and pull themback to the transformer.

4. Disconnect screw fastening of transformers (4 nuts at the flange couplingand - partially - 2 screws at the fixing bracket).

Important:The weight of the transformers must be taken into consideration! Support thetransformer or secure it by attaching a crane hook to the transformer jackrings.

5. Carefully pull the transformer out of the inner cone-type socket in correctaxial direction (without tilting it).

6. Mount new voltage transformers (see Chapter 5.3) or close high-voltageterminal with surge-proof caps.


Fig. 9.21 Current transformer for inner cone-type connection

1 1

9 Replacement of transformers


10.1 Final steps

10.1.1 Attachment of the tool board

1. Fasten tool board at choice on left or right side of the side wall (depend-ing on switchgear installation) (Fig. 10.1); 2 x M5 Torx screws.

2. Provide tool board with control elements and instruction manuals accord-ing to Fig. 10.1.

10.1.2 Clean, and check assembly

Warning!The high-voltage supply must not be connected. All active partsmust be earthed.

Clean the switchgear, removing contamination resulting from assemblywork.

Remove all the attached information tags, cards, brochures and instruc-tions no longer needed.

Check the tightening torques of all screw fastenings and connections es-tablished on the site of installation:

cable fitting on the bushings or sockets

surge-proof caps on the bushings or sockets

earth conductor

panel screw fastenings

special attachments

Important:Make sure the fastening of the silicone sleeves and busbar connection are nolonger detached.

10 Final steps / commissioning

1

5

4

3

2

9

8

7

6

Fig. 10.1Tool board attachment1 Tool board2 Fastening by means of M5 Torx screws3 Double-bit key for low-voltage cabinet4 Crank for actuation of earthing switch / disconnector5 Handle for transformer isolating device (inner cone-type cable connection)6 Spring charging crank for energy-storing device7 Assembly and operating manuals8 Handle for transformer isolating device (outer cone-type cable connection)9 Service address


10.1.3 Remount covers (see Chapter 4.4)

Lateral low-voltage cable duct cover

Cable compartment cover

Operating panel

Close front frame

10.1.4 Damage to the paint

The components are powder-coated. Minor damage to the paint can be re-paired using commercially available paint (standard colour RAL 7044 or corre-sponding colour).

10.1.5 Inspection

Check the switchgear for damage which might be due to transport or as-sembly work.

Compare data on rating plate to the required ratings.

Check rated supply voltage of control and operating devices.

Check wiring laid on site.

Check isolating gas monitoring:

IDIS system: see operating manual IDIS (AGS 531 691-01)

10.2 Commissioning

Warning!The high-voltage supply must not be connected. All active partsmust be earthed.

Important: Refer to the operating Instructions of the GHA series.

While the supply voltage is not available, blocking coils (locking the inter-rogation slides and circuit-breaker push-buttons, depending on design)are in locked position. An undervoltage release (optional) has droppedout. In this case, first perform items 3 to 5.

The energy-storing device of the circuit-breaker drive is charged autono-mously as soon as the supply voltage is applied.

1. Perform manual switching trials on the individual switching devices.

2. Check switch position indicators.

3. Apply supply voltage.

4. Check electrical functions of control and operating devices.

Motor drives for disconnector and earthing switches (optional)

Closing and opening releases for circuit-breaker

5. Check switch position indicators and interlocks.

6. Before switching on, check the connected high voltage power cables forphase coincidence (see Operating Manual, Chapter 5).

10 Final steps / commissioning


11.1 Power frequency test of busbar

A power frequency test of the busbar can be performed optionally. A test unitand a test cable (not included in scope of supplies) are required .


Warning!In the incoming feeder panel for the voltage test and on the busbarno high-voltage cables must be connected. All high-voltage termi-nals must be closed surge-proof in the test phase. Earth the resid-ual phases using commercially available earthing devices.

Important:All the switching operations mentioned in this context must be performed inaccordance with the applicable GHA Operating Instructions.

1. All panels must be isolated from the power supply and earthed.

2. Incoming feeder panel for voltage test:

Remove the cable compartment cover. Mount test cable to outercone-type bushings or, in case of inner cone-type sockets, to the testsocket (see Fig. 11.2). Open high-voltage terminals must be closedsurge-proof during the test phase. Earth the residual phases usingcommercially available earthing devices.

Earth the voltage transformers and capacitive measuring points. Dis-connect surge arresters.

4

3

56

7

21

Fig. 11.1Switch positions in the panels during the power-frequency test of the busbar1 Outgoing feeder panels2 Incoming feeder panel for voltage test3 Voltage transformer4 Busbar5 Test device (e g. high-voltage source, test transformer)6 Test cable7 Busbar voltage transformer

11 Optional high-voltage test on commissioning


3. Busbar:

Earth voltage transformer / surge arrester.

Earth capacitive measuring points.

Close high-voltage terminals in a surge-proof fashion.

4. Perform power-frequency test of the busbar with the incoming feederpanel.

Connect test device to the test cable.

Switch the earthing switch OFF.

Switch disconnector and circuit-breaker ON.

Perform power-frequency tests for all three phases (L1, L2, L3) ac-cording to the specifications of the test unit manufacturer.

Important:Observe admissible test values for the switchgear and the admissible test val-ues for power-frequency tests after installation of the switchgear in accor-dance with IEC 62271-200.

5. Once the power-frequency test has been completed:

Earth all tested high-voltage cables again.

Remove test unit and test cables.

Reconnect earthed or removed voltage transformers, capacitive meas-uring connectors or surge arresters.

Mount high-voltage cable or surge-proof covers on the incoming feed-er panel and reinsert cable compartment cover.

11.2 Cable test

Cable tests with the cables connected can be performed for outer cone-typeas well as for inner cone-type cable connections for each phase.

The test sockets for inner cones are accessible from the panel front after re-moval of the cable compartment cover (Fig. 11.2).

The busbar can be operated with rated voltage during cable tests in the out-going feeder (see rating plate).

A test unit and a test adapter (not included in scope of supplies) are requiredfor cable testing.

Warning!Comply with the safety provisions in section 1.

Important:

All the switching operations mentioned in this context must be performedin accordance with the applicable GHA Operating Instructions.

The assembly, operating and testing instructions for cable fittings andconnectors and the test unit must be taken into consideration.

Comply with the admissible limits (see Table). Other limits are only ad-missible after having obtained the written approval of the manufacturer.

General

11 Optional high-voltage test on commissioning

Uo/U (Um)1

[kV]

DC test voltageInitial / repeat test

[kV]max. 15 min.

0,1 Hz Power-frequency test voltage2

[kV]max. 30 min.

45-65 Hz Power-frequency test voltage2

[kV]max. 30 min.

6/10 (12) 48/34 18 12

12/20 (24) 96/67 36 24

18/30 (36) 108/76 54 36

Admissible limits for the switchgear panels in case of cable tests

1 Description Uo/U (Um): HD 620/621 S1 or IEC 60502-22 Repeat tests with alternating voltage: performed with 80% of the values specified in the Table


1. Isolate outgoing feeder cable of the switchgear

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