simoprime a4 24 kv air insulated switchgear

Simoprime A4 24 KV Air Insulated Switchgear Loss of Service Continuity category: LSC2B

Partition Class: PM

Internal Arc Classification: IAC A FLR 25kA 1s (IEC 62271-200)

Operation and Maintenance

Instructions Order No: 887-0102.9

Revision: 02 Issue: 2008/11

About These Instructions

These Instructions do not purport to cover all details or variations in the equipment, nor to provide for every possible contingency to be met in connection with installation, operation or maintenance. For details about technical design and equipment like e.g. technical data, secondary equipment, circuit diagrams, or other switchgear types, please refer to the Siemens Sales Department. The switchgear is subject to continuous technical development within the scope of technical progress. If not stated otherwise on the individual pages of these instructions, we reserve the right to modify the specified values and drawings. All dimensions are given in mm. The content of this instruction manual shall not become part or modify any prior or existing agreement, commitment or relationship. The Sales Contract contains the entire obligations of Siemens. The warranty contained in the contract between the parties is the sole warranty of Siemens. Any statements contained herein do not create new warranties or modify existing warranty.

Operating and Maintenance Instruction for Switchgear type Simoprime A4, Rev: 02 3

Table of Contents

TABLE OF CONTENTS ......................................................3

1. SAFETY INSTRUCTIONS..............................................4

2. GENERAL DESCRIPTION............................................5 STANDARDS AND SPECIFICATION..........................5 SERVICE LOCATIONS.............................................5 PERSONNEL SAFETY..............................................5

Switching Operations with Door Closed....................... 5 Interlocking of Door/Truck............................... 5 Protection against electrical shock and ingress of foreign bodies ............................................... 5

EQUIPMENT RELIABILITY ........................................5 Switchgear interlocking .................................... 5 Electrical Strength ............................................ 5 Highest level of independence from climate and environment........................................................... 5 Maintenance...................................................... 5 Availability ........................................................ 5

OPERATIONS .........................................................5 Moving Truck inside a panel ............................ 5 Removing Truck from panel ............................. 5 Sequence for removing the Truck ..................... 5 Remote control .................................................. 5

PANEL OPTIONS AND ACCESSORIES ......................5 CB Compartment .............................................. 6 Contactor Compartment ................................... 5 Metering Compartment..................................... 6 Cable Compartment.......................................... 6 Busbar Compartment........................................ 6

2. INSTALLATION...............................................................8 FOUNDATION ........................................................8 TRANSPORT UNITS ................................................8 PACKING AND STORAGE........................................8 ELECTRICAL SERVICE ROOM DIMENSIONS .....9 UNLOADING AND POSITIONING .......................9

Required equipment for lifting: ........................ 9 Unloading with a mobile crane ........................ 9 Unloading with a forklift truck ......................... 9

MOVING THE TRANSPORT UNIT .......................9 Checking for damage in transit and completeness ..................................................... 9 Removing the transport units from their wooden pallets .................................................. 9

ASSEMBLING THE SWITCHBOARD........................10 Removal of withdrawable truck...................... 10 Bolting the panels together............................. 10 Fixing the switchboard to the foundation ...... 10

Bolting the Busbars together .......................... 10 Bolting the main earth bar section together... 10 Making the HV cable connections .................. 11 Earthing of the switchboard ........................... 11 Other work to be carried out Error! Bookmark not defined.

3. COMMISSIONING......................................................... 11 TESTING OPERATION .......................................... 11

With door open:............................................... 11 With door closed ............................................. 11

CHECKING THE ACCESSORIES ............................. 12 4. OPERATION ................................................................. 12

TRUCK ................................................................ 12 Positions of the Truck ..................................... 12 Transferring the Truck from the test/Isolated position to the service position ....................... 12 Moving the Truck into test/Isolated position from the service position................................. 12

CIRCUIT BREAKER OPERATION........................... 13 Circuit breaker operating mechanism............ 13 Charging the closing spring by hand: ............ 13 Mechanical operation of the VCB in the panel, with door closed .............................................. 13 Operational Indication.................................... 13

EARTHING........................................................... 13 Operation of Earthing switch ........................ 13 Disconnection of earthing switches ................ 13

HV COMPARTMENT DOOR................................... 14 Opening the door ............................................ 14 Closing the door.............................................. 14

5. MAINTENANCE ............................................................ 15 INSPECTION SCHEDULE ....................................... 15

Every year ....................................................... 15 Every 5 years................................................... 15

CLEANING........................................................... 15 Cleaning agents: ............................................. 15

LUBRICATION ..................................................... 15 Recommended neutral greases are:................ 15

SPARE PARTS...................................................... 15 Replacement of parts....................................... 15

6. BRIEF OPERATING INSTRUCTION............................ 15

7. SPOILER INSTALLATION INSTRUCTION.................. 16

8. FUSE REPLACEMENT INSTRUCTION ....................... 15

9. FOUNDATION DETAIL................................................. 16


Safety Instructions

1. Signal terms and definitions

As used in these instructions, means that personal injuries can occur if the relevant precautionary measures are not taken.

Observe the safety instructions.

As used in these instructions means that damage to property or environment can occur if the relevant precautionary measures are not taken.

Observe the safety instructions.

2. Due Application

The switchgear corresponds to the relevant laws, prescriptions and standards applicable at the time of delivery. If correctly used, they provide a high degree of safety by means of logical mechanical interlocks and shockproof metal enclosure of live parts.

The perfect and safe operation of this switchgear is conditional on :

Correct operation and installation as per

installation instructions and observance on the following standards.

1. VDE0100-IEC60364 2. VDE 0101 3. VDE 105

Qualified personnel. Proper transportation and correct

storage of the switchgear. Correct installation and commissioning

with observance to applicable local laws and safety.

Diligent operation and maintenance.

3. Qualified personnel

As used in these in this instruction, these are persons who are familiar with the transport, installation, commissioning, maintenance and operation of the product and have appropriate training and qualifications for their work. To get appropriate qualifications about transport, installation and commissioning, this person has to take part in a training program for assembly and installation of Simoprime SA4. The training provides detailed information on installation and operation, assembly as well as fault removal in the primary part of Simoprime SA4 switchgear. The trained participants receive a certificate after successful completion. This certificate authorises the participants to work on their own on the Simoprime SA4 switchgear (Primary Part) For further information about the assembly and installation training please contact; PT. Siemens Indonesia Power Transmission and Distribution Customer Service Jl. A. Yani Kav B 67-68 Pulo Mas, Jakarta 13210 Indonesia Tele: +62 21 4729 123 Fax: +62 21 4715 055 Homepage: www.siemens.co.id/ptd E-mail : [email protected] In addition, the qualified person has the following qualifications:

• Training and instruction or authorisation to switch on, switch off, earth and identify power circuits and equipment / systems as per the relevant safety standards.

• Training and instruction or authorisation in accordance with the relevant safety standards for the care and use of appropriate safety equipment.

• Training in first aid and behaviour in the event of possible accidents.

4. Five Safety Rules of Electrical

Engineering • Isolate the working area • Secure against reclosing • Verify safe isolation from supply • Earth and short-circuit the working area • Cover adjacent life parts or protect

them with barriers.


1. GENERAL DESCRIPTION

Standards and Specification Simoprime is a switchgear designed for indoor installation, and complies with the following current standards and specifications: ♦ IEC publication 62271-200 with

Annex A , B and IEC Publication 60694

♦ DIN VDE 0670, Parts 6, 601 and 1000

♦ PEHLA guidelines No. 4 In accordance with the harmonization agreement reached by the EEC countries, their national standards conform to IEC Publication 62271-200.

Service Locations Simoprime switchgear can be used as indoor equipment in accordance with DIN VDE 0101: ♦ Outside lockable electrical service

locations at places which are not accessible to the public. Enclosure of switchgear can only be accessed with tools.

♦ Inside lockable electrical service locations. A lockable electrical service location is a place outdoors or indoors reserved exclusively for housing electrical equipment and kept under lock and key. Authorised persons may only open the lock. Access is restricted to authorised personnel and properly instructed persons. Others may only enter under the supervision of authorised personnel or properly instructed persons.

Personnel Safety

Switching Operations with Door Closed Personal safety is achieved by: ♦ The capability of the switching device

to move between the service and the isolated position (test position)-whilst the door remains closed.

♦ Mechanical opening and closing of the earthing switch with the door closed

♦ Verification of safe isolation from supply: - Pole-by-pole testing with an optional

capacitive voltage detector with the door closed.

- Independently operated padlockable shutters to prevent accidental contact with live components.

Interlocking of Door/Truck The door is incorporated in the interlocking concepts as follows: ♦ Opening is possible when the Truck is

locked in the Test/Isolated position ♦ The Truck can be moved from the

Isolated position to the service

position, and reverse, only when the door is closed.

♦ The earth switch is accessible only when the switching device is in the isolated/test position.

Protection against electrical shock and ingress of foreign bodies

♦ External protection is provided by complete enclosure of panels in all operating conditions

♦ Internal protection is provided by arc-resistant (optional) features.

♦ Degree of protection: Standard version IP4X.

Equipment Reliability

Switchgear interlocking Interlocks generally are mechanically driven with preventive key-operated access shutters, meaning devices such as operating keys/cranks can only be inserted when the interlocking conditions have been fulfilled. The earth switch drive is mechanically interlocked against the truck and is rendered inaccessible when the truck is in service position.

Electrical Strength Adequate electrical strength of Simoprime A4 is assured by: ♦ Sufficiently large air gaps

between phases and earth. ♦ Suitable electrode forms. These design features allow conductor insulation materials to be reduced to the minimum.

Highest level of independence from climate and environment

♦ Ribbed cast resin insulators and bushings, with high resistance to pollution.

♦ Total closed enclosure under all operating conditions.

♦ A space heater in both of the circuit breaker and cable compartments for cubicles installed in humid environments, preventing electrical faults caused by condensation forming on the insulating parts.

Maintenance Minimum maintenance is ensured by:

♦ Totally closed enclosure under all operating conditions.

♦ Use of proven, maintenance- free vacuum switching devices.

Availability Easy procurement of parts for extension and refurbishment through the use of: ♦ Standard insulators ♦ Standard vacuum switching

devices ♦ Standard copper sections ♦ Standard instrument transformers

Operations

Moving Truck inside a panel Little effort is required by hand to move the Truck inside a panel with the aid of continuous screw mechanism.

Removing Truck from panel The Truck is light and easy to remove from the panel: ♦ By one man ♦ Without special tools ♦ Regardless of floor surface

Sequence for removing the Truck ♦ Move the truck into the

Isolated/test position, ♦ Open the circuit breaker

compartment door, ♦ Unplug the LV control plug, ♦ Unlock the Truck,(4drive box bolts) ♦ Fix the individual ramps onto the

rails, ♦ Remove the withdrawable truck

from the panel proper.

Remote control Electric remote control, e.g. from a central control room can be provided. Emergency manual operation is possible under all conditions.

Figure 1: Individual Ramp fixed to panel


Panel Options and Accessories

CB Compartment

Standard: Withdrawable Vacuum Circuit breaker type 3AH with trip, and close coils, and spring charging motor Variations: Circuit Breaker options: ♦ Range of operating voltages ♦ Second trip coil ♦ Undervoltage release ♦ Electrical Lockout ♦ Extended auxiliary Switches Withdrawable Voltage Transformer ♦ Range of voltages ♦ Open delta winding ♦ Primary Fuses , DIN style

Metering Compartment

Standard: Fixed Voltage transformer, three single phase devices each with a single secondary winding Variations: Voltage Transformer options: ♦ Range of voltages ♦ Open delta winding Option: Withdrawable Voltage Transformer Truck, three single phase devices each with a single secondary winding and primary fuse, DIN style if required.

Cable Compartment

Standard: Cable entry from bottom, earth bar, and bushings to the switching device compartment. Variations: Cable Fault making earth switch (25kA/1s) Current Transformers ♦ Block type Voltage transformer ♦ Block type Cable connection ♦ Connection of up to 4 cables per phase Lightning arrestor Gland plate ♦ Steel ♦ Aluminium ♦ Stainless steel ♦ Brass Cable entry ♦ Top (adds additional 600mm cable box)

Busbar Compartment

Standard: Droppers: 1250/2500A Busbars: 1250/2500A

Low Voltage Compartment

Standard 700 mm high complete with Gear Plate

Figure 2: Side view of Incomer Panel

A)-Spoiler Assembly. B)-Busbar Comp. C)-Cable Comp.


Product Range

Designation CB1 CB2 CB 3 CB4 CB5 CB6 LBS Electrical properties Rated Voltage ≤ 24 kV ≤ 24kV ≤ 24 kV ≤ 24kV ≤ 24 kV ≤ 24 kV ≤ 24 kV Rated current (panel) < 800 A < 1250 A < 1250 A < 1250 A < 2500 A <2500 A 630 A Frequency 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz Short circuit current (1/3 sec ) ≤ 16 kA ≤ 16 kA ≤ 20 kA ≤ 25 kA ≤ 20 kA ≤ 25 kA ≤ 20 kA (1/3s) Rated peak current ≤ 40 kA ≤ 40 kA ≤ 50 kA ≤ 63 kA ≤ 50 kA ≤ 63 kA ≤ 50 kA Busbar current ≤ 2500 A ≤ 2500 A ≤ 2500 A ≤ 2500 A ≤ 2500 A ≤ 2500 A ≤ 2500 A Rated Power Frequency Withstand Voltage ≤ 50 kV ≤ 50 kV ≤ 50 kV ≤ 50 kV ≤ 50 kV ≤ 50 kV ≤ 50 kV

Rated Lightning Impulse Withstand Voltage ≤ 125 kV ≤ 125 kV ≤ 125 kV ≤ 125 kV ≤ 125 kV ≤ 125 kV ≤ 125 kV

Dimensions Width (mm) 800 800 800 800 1000 1000 500 Height (mm) 2250 2250 2250 2250 2250 2250 2250 Depth (mm) 1900 1900 1900 1900 1900 1900 1900 Weight (kg) ≤ 1100 ≤ 1100 ≤ 1100 ≤ 1100 ≤ 1550 ≤ 1550 ≤ 500 Standard fitout VCB 3AH 3AH 3AH 3AH 3AH 3AH Simosec - - - - - - - LV compartment, (700mm) √ √ √ √ √ √ - Option fitout

CT’s Block Block Block Block Block Block Ring

Top entry cable* √ √ √ √ √ √ - PT Cable fixed √ √ √ √ √ √ - PT on VCB Truck √ √ √ √ √ √ -

Cable earth switch √ √ √ √ √ √ √

Fuses - - - - - - - Key Interlock Switching device √ √ √ √ √ √ √

Key Interlock Earth Switch √ √ √ √ √ √ √

Lightning arrestor √ √ √ √ √ √ √

- - - - - - -

*Additional panel depth 600mm

Designation BS1 BS2 BS3 BS4 BS5 MET1 FLBS Electrical properties Rated Voltage ≤ 24 kV ≤ 24 kV ≤ 24 kV ≤ 24 kV ≤ 24 kV ≤ 24 kV ≤ 24 kV Rated current (panel) ≤1250 A ≤1250A ≤ 1250A ≤ 2500 A ≤ 2500 A - 200 A Frequency 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz Short circuit current (1/3 sec) ≤ 16 kA ≤ 20 kA ≤ 25 kA ≤ 20 kA ≤ 25 kA ≤ 25 kA ≤ 20 kA (1/3s)Rated peak current ≤ 40 kA ≤ 50 kA ≤ 63 kA ≤ 50 kA ≤ 63 kA As per fuse As per fuse Busbar current ≤ 1250 A ≤ 1250 A ≤ 1250 A ≤ 2500 A ≤ 2500 A ≤ 2500 A ≤ 2500 A Rated Power Frequency Withstand Voltage ≤ 50 kV ≤ 50 kV ≤ 50 kV ≤ 50 kV ≤ 50 kV ≤ 50 kV ≤ 50 kV

Rated Lightning Impulse Withstand Voltage ≤ 125 kV ≤ 125 kV ≤ 125 kV ≤ 125 kV ≤ 125 kV ≤ 125 kV ≤ 125 kV

Dimensions Width (mm) 1600 1600 1600 1800 1800 800 500 Height (mm) 2250 2250 2250 2250 2250 2250 2250 Depth (mm) 1900 1900 1900 1900 1900 1900 1900 Weight (kg) ≤ 1700 ≤ 1700 ≤ 1700 ≤ 2100 ≤ 2100 ≤ 800 ≤ 500 Standard fitout VCB 3AH 3AH 3AH 3AH 3AH - Simosec LV compartment, (700mm) √ √ √ √ √ √ - Option fitout CT’s Block Block Block Block Block - Ring PT on VCB Truck √ √ √ √ √ √ (No VCB) - Fuses - - - - - √ √ Key Interlock Switching device √ √ √ √ √ √ √


2. INSTALLATION

All work that is likely to produce dust or dirt must be carried out prior to installation of the panel. A power source and an adequate foundation, made in accordance with the submitted drawings should be available prior to delivery of the panels. The floor should be level and even so that the transport units can be easily moved on rollers or similar devices.

Foundation

The foundation should be prepared in accordance with the specifications and drawings submitted. Where false floors are used care should be taken to ensure the floor can support the static loads nominated in the drawings. The fixing rails should be installed in accordance with the drawings provided, and appropriately fixed.

For the concrete floor, the floor tolerance is as per DIN 43661 where the level difference between highest and lowest points on the floor surface must not exceed 1 mm per 1 m length, and for the total length of the switchboard must not exceed 2mm. Higher tolerances should be compensated. A sample of the floor cut-out is shown. For full details please refer to the supplied drawing of requirements.

Transport Units

The switchboard will be dispatched in pre-assembled transport units consisting of a maximum

Figure 3: Fully assembled Incomer panel

of 2 ready-assembled switchgear cubicles, complete with trucks.

Packing and Storage

Destination Packaging Storage Location Duration

Inland delivery Each transport unit is bolted to a sturdy wooden pallet and covered by a plastic sheet as a protection against rain and dust and packed in normal wooden case

Indoors under cover. 2 months from

shipment date

Overseas delivery Each transport unit is packed in a sea- worthy case; enclosed in a Vacuum shrunk plastic sheet, sealed airtight and includes desiccant bags

Indoors under cover. 4 months from

shipment date

Switchboard operational accessories are packed separately or supplied in one of the cubicle transport units (see the dispatch Note).


Electrical service room dimensions

Height of the switch room with 700 mm high LV compartment ≥ 2850* mm

Width of control aisle ≥1500 mm Clearance between the wall and the cubicle rear and sides ≥ 150 mm

* There must be a minimum of 600 mm clearance above the LV chamber.

Unloading and Positioning

Do not unpack before unloading the transport units. Take care not to damage the plastic sheet since it provides environmental protection for the switchgear.

Required equipment for lifting:

• A mobile crane or a chain pulley block of 5 tons capacity for unloading the transport units.

• Lifting tackle • A fork-lift truck with a fork length of about 1.5

m, for handling the switchgear inside the building

• Hydraulic jacks or winches and caterpillar roller pads and accessories

The handling/transport gear must meet the site requirements with regard to its construction and load bearing capacity

Unloading can be done with either a mobile crane or a forklift truck.

Unloading with a mobile crane

• Suspend the lifting tackle from the crane and position it over the transport unit

• Attach the ropes to the tackle and position, and spread them so that they cannot exert pressure on the switchpanels sides.

• Attach the ropes to the wooden pallet • Carefully raise the transport unit and check

to see that it is correctly balanced, if necessary lower the transport unit and correct any imbalance by repositioning the ropes on the lifting tackle.

• Lower the transport unit to the ground

Unloading with a forklift truck

Transport units with maximum of two panels can be unloaded using a forklift truck. The transport unit must be correctly balanced.

Moving the transport unit • Move the transport units as close as possible

to the switch house and put them down. • Move each transport unit into the building • Put the cubicles down on the cleaned site or

at least immediately in front of it in the correct order, leaving a clearance of about 0.5 meters between them.

• Dismantle and remove the crates just before installation

Checking for damage in transit and completeness

Immediately after unloading, and unpacking the switchgear, check the switchgear for any damage as well as its completeness. If there is any damage, record it immediately (without delay). If the damage was caused en route, record it in front of the forwarding/insurance agent. In addition check all unpacked items against the supplied despatch documentation. Ensure that the intra panel seals are fitted and undamaged.

Removing the transport units from their wooden pallets

• Move the Trucks from the Service position (as supplied) to the Isolated position and open the switchgear compartment doors (see next page, “Removal of withdrawable truck”).

• Remove the truck from the panel. • Loosen and remove the lower rear cover to

gain access to the cable compartment. • Unscrew the bolts securing the switchpanels

to the wooden pallet. The bolts are located in the cut-outs in the floor rails front and rear.

• Close the switchgear compartment doors. • Place a rod through the lifting eyes provided,

across the transport unit, and raise from pallet.

• Remove the wooden pallet. • Lower the transport unit as far as possible

and place it on two wooden beams if it is located above its site or place on four roller pads if it is in front of its site.

• In the latter case roll the units to their install-ation position site. Then place planks and channels in foundation cut-outs that have to be crossed.

• Raise the transport units, as described above, and remove the roller pads.

• Lower the transport units as far as possible and place them on two wooden beams.

• Now raise the units; first on one side and then on the other, using roller-type crowbars; pull out the planks and lower the units onto the clean foundation. Position the crowbars only at the corners of the transport units below the vertical frame members.


Assembling the switchboard

Removal of withdrawable truck

• Put the withdrawable truck into the Isolated/test position (see section 4, “withdrawable truck”)

• Open the circuit breaker compartment door (see section 4, “To open the door”).

• Disconnect the LV plug and place it in its holder under the LV compartment.

• Unbolt the Truck. • Position the individual ramps on the two

sides. • Slowly remove the truck away from the

panel. • Remove the individual ramps. • Remove the other trucks in the same

manner. Never handle a withdrawable part by its contact arms

Bolting the panels together

Put the first transport unit is in its final position and position the other units on the foundation rails in the correct order but with a clearance of approximately 500 mm between them, it is preferable to install the central transport unit first. Then the other units can be installed on its left and right in proper sequence. This method should be applied for a board with 20 or more panels. Procedure: • Align the central transport unit on its

foundation. The switchgear cubicle must be at the correct level and be absolutely vertical, ensuring the door mark lies within the upright mark. If necessary place shims under the frame upright and under the bottom rails near the 14mm diameter cut-outs for the foundation bolts.

• Bolt the panel securely to the foundation

rails, as described below.

• Remove the busbar partition cover located in the VCB compartment (above the busbar shutters).

• Loosely install the loose supplied Busbars into panel, access is from left or top, DO NOT TORQUE. Clean contact points with light emery and apply a light coat of grease.

• Remove the bolts fitted at the left-hand end walls of each transport unit as viewed from the front.

• Check that the supplied seals are undamaged.

• Move up the second transport unit. • Align this on the foundation, and ensure the

busbars are properly aligned; raise it to the correct level and ensure that the panels stand vertically. (Use shims if necessary as for the first transport unit.) Fix securely to the foundation rails, as above.

• Using the same bolts and nuts, removed above, to join the transport units.

• Recheck that the panels are vertical. If necessary slacken the screws and seal the gaps with Silicon Sealant.

• Move up the other transport units in sequence, and following the same procedure bolt the cubicles, and busbars, together.

Other work to be carried out

Checking the HV connections On all HV cables, check • The tightness of bolts • The earthing of cable sealing end • The core spacing on three core cables and

the correct fitting of anti-magnetic clips on single-core cables.

Fixing the switchboard to the foundation

The panel bottom plate has three holes for fixing purposes. Final fixing to the rails is using M12 bolts. • Embed anchor-bolts in the foundation

(through the holes) or drill the appropriate holes in the foundation rails (false floor).

• Insert shims between the foundation and bottom rails near the cut-outs. Tighten the screws without distorting the panels.

Bolting the Busbars together

The busbar/feeder connection joints use M12 bolts and Belleville. The recommended torque is 70 Nm. The Busbars of adjacent units must be joined together using the Busbars and hardware supplied. The Busbar chamber partition cover in the VCB compartment has to be removed to approach the main Busbars. The Busbars of the switchpanels forming a transport unit are already bolted. Re-fix the partition cover after the Busbars are bolted together, and have been Torque tightened.

Bolting the main earth bar section together

The main earth bars of the transport units must be linked together. One of the two parts to be bolted together is already fitted with a link. This must be undone, passed through the partition and bolted to the adjacent earth bar sections. The cover on the sidewall should be properly adjusted after joining the earth bars.


Making the HV cable connections

The lower end cable terminals of each switchgear cubicle are fitted with the appropriate bolts for the cable lugs. The termination compartment takes cables and sealing ends. Due attention should be given to the instructions of cable end termination kit manufacturer. Ensure that the cables are properly fixed to the cable support bracket supplied, to eliminate the potential weight applied to the connection point. Un-drilled gland plates forming the floor in the termination compartment must be removed prior to making the cable termination, and to make the cut-outs suitable for the cable entry, and must be

refitted in the cable compartment. To approach to cable terminations, remove the cable chamber partition cover in the VCB chamber, which should be refitted after the termination is made. All openings made for cable entry must be properly sealed.

Earthing of the switchboard

Connect the earth terminals of at least one switchgear cubicle to the station earth (two may be required to suit local guidelines). Termination facility for earth connection is provided on the earth busbar mounted in the cable chamber.

Checking the bolted joints • Check the power and auxiliary circuit

connections of switching devices at random, but examine all terminal block connections making sure that the blocks are correctly labelled and replace any missing labels by referring to the circuit diagram.

Cleaning the switchboard Using a soft dry cloth clean all post insulators, insulating bushings and Busbars in all compartments. Do not use any abrasive chemical or detergents to clean installed parts. Use only distilled water if necessary. Inserting the truck • Open the front door • Place the individual ramps in position. • Place the truck in front of the corresponding

panel. • Put the truck inside the panel and push it in

as far as possible. • Place the ramps back into its normal position • Fix truck to side interlock points and torque

to maximum 10Nm • Connect the LV control plug . Lock in

position. • Close the door

Protection against environment • Damaged sections of the paint finish may

only be touched up with original part • Fit the parts supplied to protect against the

ingress of reptiles. Check in case they are removed during installation

• Close all the doors and covers properly Space heaters For cubicles installed in humid atmosphere, space heaters are fitted in the circuit breaker and cable compartments. The heaters should be switched “ON” before taking the switchgear cubicle into service. Service conditions such as high humidity (above 70%), low load currents (less than 50% of nominal rating), or the absence/non-switching of space heaters, can form condensation of water on the insulation components, leading to electrical faults.

Connection diagram for busbars >1250A

3. COMMISSIONING

Testing Operation It is assumed that the commissioning of the panels will have a clearly defined set of procedures, and checks however we would recommend that the following activities be included in this process. A separate protocol has been supplied with this instruction covering aspects of Installation and commissioning, which we deem to be mandatory to ensure the proper operation of the panels. This is the minimum recommended by Siemens. With HV door open:

• The motor operating mechanism must start immediately and charge the breaker closing spring after connection of the LV plug, and assuming all protective devices are closed and an auxiliary supply is available.

• Open and close the breaker several times • Pull off the LV plug & charge the breaker

closing spring by hand (see section 4, “circuit breaker operating mechanism”).

• Operate the circuit breaker. • Refit the LV cable plug.

With HV door closed

Each panel should be tested as follows: • Place the truck in the Isolated position • Switch in the auxiliary and control supply


• If earth switch is installed ensure it is open. • Operate earth switch from panel front, (as

long as no high voltage is applied). • Transfer the truck to the Service position • Open and close the breaker, (as long as no

high voltage is applied). • Without using any force, check all

mechanical and electromechanical interlocks for satisfactory function.

• Check whether the positions of the truck are indicated correctly (if the appropriate position switches are fitted, refer to the circuit diagrams).

Checking the accessories The accessories must be easily available in the switch room. These accessories generally will include: • Hand crank for transferring the truck between

positions • Hand crank for charging the breaker closing

spring. • Double-bit key, for locking the hand-

operating mechanism, and accessing the HV compartment

• Drive Handle for operation of the Earth Switch, where fitted.

• Operating instructions • Closing and Opening Rods • Individual Ramps

4. OPERATION

Truck Positions of the Truck

SERVICE POSITION The circuit breaker is connected to the Busbars and the outgoing circuit. The auxiliary circuit is connected through LV plug and socket. TEST POSITION The circuit breaker is Isolated from the Busbars and the outgoing circuit. Segregation as specified in IEC62271-200 is maintained. The LV circuits are connected through LV plug and socket. When LV plug and socket are connected: • The breaker compartment door can be

opened. • The circuit breaker can be tested/operated. • Functions such as ‘ON/OFF’ indication and

electrical interlocks can be tested. ISOLATED POSITION The circuit breaker is Isolated from the Busbars and the outgoing circuit. Pulling out the LV plug disconnects the LV circuits. When LV plug and socket are disconnected • The breaker compartment door cannot be

closed, whilst the truck is inside Instructions for transferring of a Truck by manual racking: 1. Lock the hand racking mechanism, operated

with a double-bit key

2. Operated by hexagon shank for fitting the hand crank.

CORRESPONDING POSITION:

POSITION OF DOUBLE-BIT KEY IN LOCK (1)

SOCKET (2)

Test/Isolated position (locked) Closed Manual racking Open

Service position (locked) Closed

Transferring the Truck from the test/Isolated position to the service position

Normal Operations 1. Turn double-bit key

2. Insert and turn handcrank

3. Turn double-bit key

from by to As far as possible and remove it

from by to

90°

90°

• Ensure that the truck has been fully inserted,

and its fixing bolts properly tightened. • Make sure that the circuit breaker is open,

the LV plug and socket are connected and locked. The breaker compartment door is closed.

• Ensure that the cable earth switch has been opened, and is off.

• Insert the double bit key • Rotate through 90° to “Manual Racking” from

“Test Isolated position (locked)”. • Insert the hand crank to the hexagonal shank

and continue to turn it clockwise until it reaches its stop, then remove it.

• Rotate it through 90° from “Manual Racking” from “Service Position (locked)”, and remove it

Opening for hand racking is now closed. The hand racking mechanism is locked out.

Moving the Truck into test/Isolated position from the service position.

Normal operations


2. Insert and turn handcrank


from by to

As far as possible and remove it

from by To

90°

90°


• Ensure that the circuit breaker is open • Insert the double-bit key • Rotate it through 90° from “Service position

(locked)” to “Manual Racking”. The hexagon shank opening is now accessible.

• Insert the hand crank to the hexagonal shank and continue to turn it anti-clockwise until it reaches its stop, then remove it.

• Turn the double-bit key counter clockwise through 90° from the position “Manual Racking” to “Isolated position (locked)” and remove it.

The opening for hand racking is now closed. The hand racking mechanism is locked out. Removing the LV plug • Move the Truck to the test position • Open the breaker compartment door • Unlock the plug and socket connector by

turning down the clip. • Pull the plug out and attach it to the holder,

which is fixed bottom of the LV compartment. Connecting the LV plug • Insert the plug into the socket and lock them

together with the clip. • Close the breaker compartment door. Circuit Breaker Operation Circuit breaker operating mechanism

The operating mechanism for the circuit breaker is a stored-energy type. For the electrically operated breakers, a motor automatically charges the closing spring after each “ON” switching operation. If the motor supply should fail, the closing spring can also be charged by hand. The tripping spring is charged each time the breaker is closed.

Charging the closing spring by hand:

PROCEDURES: If the breaker compartment door: • Closed (Service position), turn plate so that it

clears the opening, insert the hand crank and fit it to the breaker.

• Open (Isolated position), fit the hand crank directly to the breaker operating mechanism in the opening.

OPERATING MECHANISM: • Turn the crank until the symbol “Spring

Charge” appears in viewing window on the Spring Charge indicator. The operator is not at risk if the motor supply recovers, since the hand crank free wheels.

• Remove the crank handle.

Mechanical operation of the VCB in the panel, with door closed

• Use the mechanical operating rods, supplied as standard accessories, to operate the VCB “ON” and “OFF” push buttons.

• If necessary charge the closing spring manually if LV plug has been disconnected in isolated position.

Operational Indication

• Windows are provided in the HV Door to allow visual confirmation of position, as well as details of VCB status, and operation counter

Additional information on the VCB can be found in the separately supplied instructions.

Earthing

Operation of Earthing switch

Earthing with mechanical earthing switch • Ensure that the truck is in test/isolated

position. • If the truck is in service position then access

to the operating drive mechanism of the earth switch will be closed / inaccessible. This ensures that the earth switch can only be operated if the truck is in test/isolated position.

• Lock the truck in test/isolated position. Then remove the double bit key.

• The earth switch operating mechanism is now ‘FREE’ and the earth switch handle can be inserted.

• Turn the earth switch handle in the direction shown on the panel to switch ‘ON’ the earth


switch. This is 90° to the right (clock –wise). The handle has to be moved firmly in this one direction only and maximum force to be applied is no more than ‘60’ Nm.

• When the handle stops the earth switch operation position indicator goes from ‘0’ to ‘1’

• Whilst the cable earth switch is applied (‘ON’) the trucks are prohibited from moving from test/isolated position to Service position. The double bit key cannot be turned to expose the manual racking hexagon shank.

• Prior to earthing cables it must be ensured that the cables are not and cannot be energized from the other end.

• Place warning labels and Tags at necessary locations.

Disconnection of earthing switches

• Insert the earthing switch handle in position. Turn it in counter clockwise direction until it stops. Maximum force applied should be no more than ‘ 60’ Nm . Withdraw the handle.

• The earth switch operation position indicator goes from ‘1’ to ‘0’

• Remove warning labels and tags from the necessary locations

HV compartment door The door can be opened and closed when the withdrawable part is in the test position and the plug-and-socket connector for the LV cables have been connected.

Opening the door

• Insert the double-bit key in the slot • Turn the double bit key by 90° counter

clockwise ,lift the knob and pull the door along with the key.

• Turn the key in the reverse direction by 90° • Remove the key.

Closing the door

• Insert the double bit key in the slot • Turn the double bit key by 90° in counter

clockwise direction, lift the knob and shut the door. Push knob down to secure door.

• Turn the key in the reverse direction by 90° • Remove the key


5. MAINTENANCE

Inspection schedule

Every year

• A general visual inspection of all parts/supports

• Check to see whether the accessories are complete and in proper order.

• Lubricate the wheels and moving parts of the truck and interlocking plate.

Every 5 years

In addition to every year check • Transfer the truck to the isolated position. • Test operate the circuit breakers • Remove the trucks and carry out all

maintenance work, also on the switching devices.

• Clean the panels and check the connections • Lubricate all bearing surfaces, bearings and

articulated joints. • Reinsert the trucks • Check the switch panels functions and put

the board back into service If work has to be carried out in the panels, isolate the board; ensure that it cannot be made live again. Check the isolated state and earth and short-circuit the feeders, and where applicable check the Busbars. Adhere to all regulations and safety measures. Maintain and service the built-in equipment, e.g. circuit breakers, vacuum contactors, voltage transformers, current transformers, relays, meters, protective devices, etc., in accordance with their operating instructions. Before removing the front plate of the breaker operating mechanism, discharge the closing and tripping springs. Only standard tools are required. Put the switchgear back into service as described under “Commissioning” section above. Service the switchgear at the shorter intervals if the air is moist, full of dust or is otherwise polluted. The cause of any disturbance or short-circuit must be determined immediately and damaged parts replaced, regardless of whether an inspection is due or not. Cleaning Cleaning agents:

• Perchlorethylene

• 1.1.1 trichloroethylene • Small brushes • Dusters • Vacuum cleaner Caution Trichloroethylene, Perchlorethylene and tetrachloroethylene and similar other agents have a harmful effect on cast-resin parts and must not come into contact with them. Cast resin parts should be cleaned with either a clean dry cloth or cloth moistened with distilled water. Silver plated and other contact surfaces to be cleaned with either a clean cloth or light emery. Lubrication Immediately after cleaning: • Lubricate the isolating contacts and their

mating contacts with neutral grease. • Apply a film of neutral grease to the bearings

and articulated joints of the operating mechanisms, to the withdrawable parts and shutters, and to the door hinges and locks.

• Using a wooden spatula to lubricate auxiliary switches of the truck with grease.

Recommended neutral greases are:

Centoplex 24DL For shafts, joints, hinges etc Longterm 2 Plus For El. contacts, and truck mech. Barrierta 1 EL For agressive environs in lieu

Longterm 2 plus Spare Parts Only authentic recommended spares should be used. Contact the nearest Siemens office for the same.

Replacement of parts

Items such as post insulators, bushings, mating contacts, measuring instruments, current transformers etc., can be replaced. If replacement is likely to prove difficulties, ask the nearest Siemens representative to send personnel. The representative will also assist you in deciding what spare parts to keep in stock. When ordering spare parts and units, please give the following details: • Type and serial number of the equipment

(see name plate) • Exact description of the unit or part, referring

to the appropriate operating instructions where applicable, or to a drawing, sketch or circuit diagram.


BRIEF OPERATING INSTRUCTION

DESIRED POSITION OF TRUCK & CB

TRUCK POSITION

FRONT DOOR POSITION

FROM TO

OPERATION OF KEY &

CRANKING LEVER IN CB COMPARTMENT

INITIAL TEST (DISCONNECTED)

CLOSED TEST (DISCONN.)

____

____

MOVE FROM TEST (DISCONNECTED) TO SERVICE (CONNECTED)

CLOSED

TEST (DISCONN.)

SERVICE (CONN)

1. INSERT KEY TURN 90°

2. INSERT CRANKING LEVER,

TURN TILL STOP 3.REMOVE CRANKING LEVER

LOCK IN SERVICE POSITION

CLOSED SERVICE (CONN.)

____

1. TURN KEY

90° 2. REMOVE KEY!

(SERVICE) CB OPEN

(SERVICE)CB CLOSED

1. Insert mechanical operation ROD PRESS ON PB

ON 2. Remove Mechanical operation Rod

MECHANICAL OPERATION OF CB IN SERVICE POSITION

TO CLOSE CB

CLOSED

TO OPEN CB (SERVICE) CB CLOSED (SERVICE) CB OPEN

1. Insert Mechanical Operation Rod PRESS OFF PB

OFF 2. Remove Mechanical Operation Rod

MOVE FROM SERVICE (CONNECTED) TO TEST (DISCONNECTED)

CLOSED

SERVICE (CONN.)

TEST (DISCONN.)

1. INSERT KEY

TURN 90°

2. INSERT CRANKING LEVER

TURN TILL STOP 3. REMOVE CRANKING LEVER

LOCK IN TEST POSITION (DISCONNECTED)

CLOSED

TEST (DISCONN.)

_________

1. TURN KEY 90°

2. REMOVE KEY


SPOILER INSTALLATION INSTRUCTION

Figure 5: Completed Spoiler Assembly.


Switchgear extension The switchgear can be extended on both sides without having to modify existing panels. Please contact your local Siemens Partner for switchgear extensions and component replacements. Disposal This switchgear Simoprime A4 is an environment compatible product. The switchgear is made of sheet steel. The doors and lateral switchgear end walls are powder coated with resistant epoxy resin material. The switchgear materials should be recycled if possible. The switchgear can be disposed of in an environment-compatible manner in compliance with existing local legislation. The components of the switchgear can be recycled as mixed scrap; however, dismantling as far as possible into sorted scrap with residual mixed scrap portion is the more environment-compatible way. Electronic scrap has to be disposed of in accordance with the existing local regulations. The switchgear consists of the following materials:

♦ Sheet Steel ♦ Copper ♦ Aluminium ♦ Epoxy Resin ♦ Cast Resin ♦ Fibre-reinforced plastics ♦ Rubber materials ♦ Ceramic Materials ♦ Lubricants ♦ Bolts, washers, nuts, rivets made

of steel.

Note These instructions do not purport to cover all details or variations in equipment, nor to provide for every possible contingency to be met in connection with the installation, operation, or maintenance. Should further information be required, or problems arise which are not covered in sufficient detail for the purchasers purposes, then the matter should be referred to the local Siemens Sales office. The contents of these instructions shall not become part of, or modify any prior, or existing agreement, commitment, or relationship. The Sales contract contains the entire obligation of Siemens. The warranty contained in the contract between the parties is the sole warranty of Siemens. Statements contained herein, neither create new warranties, nor modify existing agreements.


Foundation Details

PT. Siemens Indonesia Tele: +62 21 24555 100 Power Transmission and Distribution Fax : +62 21 24555 505 Medium Voltage E-Mail:[email protected] Jl. A. Yani Kav B 67-68 Homepage: www.siemens.co.id/ptd Pulo Mas, Jakarta 13210 Indonesia.

800mm Panel

1000mm Panel

simoprime a4 24 kv air insulated switchgear

Documents