Medium-voltage switchgear

Medium-voltage switchgear

Medium-voltage switchgear

GHA

Gas-insulated switchgear ≤ 40.5 kV (≤ 40 kA) for single and double busbar panels

Assembly Instructions

No. AGS 531 446-01

Edition 04/2014 www.schneider-electric.com

Manufacturer:

Schneider Electric Sachsenwerk GmbH

Rathenaustrasse 2

D-93055 Regensburg

Germany

( +49 (0) 9 41 46 20-0

7 +49 (0) 9 41 46 20-418

Service:

Schneider Electric GmbH

MA GIS

Rathenaustrasse 2

D-93055 Regensburg

Germany

( +49 (0) 9 41 46 20-777

7 +49 (0) 9 41 46 20-776

GHA

Contents

AGS 531 446-01 | Edition 04/2014

Remarks on this manual .............................................................................5

Purpose and target group ........................................................................................... 5

Reference documents ................................................................................................ 5

Terms and symbols used ............................................................................................ 6

Abbreviations used ..................................................................................................... 6

Any questions or suggestions?................................................................................... 6

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

2 Design, description, variants ...........................................................8

2.1 Switchgear panels with single busbar ............................................................. 8

2.2 Panels with double busbar .............................................................................11

2.3 Dimensions and weights ............................................................................... 13

2.4 Applicable standards ..................................................................................... 17

2.5 Environmental and operating conditions ....................................................... 17

2.6 Intended use ................................................................................................. 18

2.7 Disposal after the end of service life ............................................................. 18

3 Packaging, transport, storage........................................................19

3.1 Shipping units ................................................................................................ 19

3.2 Transport ....................................................................................................... 19

3.3 Storage .......................................................................................................... 20

4 Assembly .........................................................................................21

4.1 Safety provisions ........................................................................................... 21

4.2 Important instructions for assembly .............................................................. 21

4.3 Requirements regarding the switchgear room .............................................. 22

4.4 Transporting the panels on the construction site........................................... 25

4.4.1

4.4.2

Transport of panel by means of a crane ................................................... 25

Transport using the transport frame ......................................................... 26

4.4.3 Transporting the panels onto the base frame ........................................... 27

4.5 Attachment of pressure relief duct ................................................................ 28

4.6 Remove cable compartment cover and shutters ........................................... 29

4.6.1

4.6.2

4.7.1

4.7.2

Cable compartment interlock (optional) .................................................... 29

Remove cable compartment cover and shutters ...................................... 30

4.7 Installation of panels ..................................................................................... 32

4.7.3

4.7.4

Installation of the first switchgear panel .................................................... 32

Removal of transport securing device ...................................................... 32

Pre-coat the high-quality electrical joints of the busbar link ...................... 33

Preassembling the clamping contacts ...................................................... 34

4.7.5 Screw-fastening the panels to one another .............................................. 35

4.8 Compensating shutters for the panel front .................................................... 36

4.9 Busbar link: B link .......................................................................................... 39

4.9.1

4.9.2

4.9.3

4.9.4

4.9.5

4.9.6

Press silicone sleeve back ....................................................................... 40

Connecting the busbar (fasten preassembled clamping contacts) ........... 41

Contact resistance measurement of busbar screw fastening ................... 42

Fasten silicone sleeve to adjacent panel .................................................. 43

Cover of busbar link in case of panels without pressure relief duct .......... 44

Current transformer on the busbar for fan control .................................... 47

4.10 Reinforcement ............................................................................................... 50

4.11 Screw-fastening the panel to the base frame ................................................ 51

4.12 Mounting the earth bus ................................................................................. 52

5 Busbar attachments ........................................................................53

5.1 Safety provisions ........................................................................................... 53

5.2 Assembly of surge arresters ......................................................................... 53

5.3 Assembly of voltage transformers ................................................................. 54

6 Low-voltage cabinet ........................................................................56

6.1 Assembly ....................................................................................................... 56

6.2 Connecting the control lines .......................................................................... 57

3

GHA

Contents

7 Switchgear termination...................................................................59

7.1 Attachment of the protective tank to the left-hand / right-hand end of the busbar ........................................................................................................... 59

7.2 Switchgear without pressure relief duct ........................................................ 60

7.2.1 Overview ................................................................................................... 60

7.2.2

7.2.3

Attachment of the right-hand or left-hand side wall .................................. 61

Extension of side wall in double busbar switchgear ................................. 63

7.3 Attachment of fan .......................................................................................... 65

8 Switchgear with pressure relief device .........................................67

8.1 Overview ....................................................................................................... 67

8.2 Cover plate ................................................................................................... 69

8.3 Attachment of pressure relief duct ................................................................ 70

8.4 Attachment of side walls for pressure relief from the switchgear room ......... 71

8.5 Attachment of side walls for pressure relief into the switchgear room .......... 72

9 High-voltage connection ................................................................73

9.1 Cable compartment with base plates (optional) ............................................ 73

9.2 Outer cone-type bushing ............................................................................... 74

9.3 Inner cone-type socket .................................................................................. 77

10 Commissioning ...............................................................................80

10.1 Final steps ..................................................................................................... 80

10.1.1 Attachment of the tool board .................................................................... 80

10.1.2 Cleaning and checking assembly ............................................................. 80

10.1.3 Remount covers (see Chapter 4.6, page 29) ........................................... 81

10.1.4 Damaged paint ......................................................................................... 81

10.1.5 Inspection ................................................................................................. 81

10.2 Commissioning .............................................................................................. 81

11 Optional high-voltage test on commissioning .............................82

11.1 Power frequency withstand test of the busbar .............................................. 82

11.2 Cable testing ................................................................................................. 84

11.3 Cable jacket test ............................................................................................ 88

12 Replacement of components and panels .....................................89

13 Annex ...............................................................................................90

13.1 Auxiliary products .......................................................................................... 90

13.2 Required tools (not included in the scope of supplies) ............................... 90

13.3 Coating the contact surfaces ...................................................................... 92

13.4 Screw locking compound .............................................................................. 92

13.5 Specifications for screw connections ............................................................ 93

AGS 531 446-01 | Edition 04/2014

GHA

Remarks on this manual

The following additional documents must be complied with:

For information which is not included in this manual and the assembly drawings supplied with the equipment, please contact the manufacturer.

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

All dimensions specified in this manual are in millimeters.

Purpose and target group

This Technical Manual describes assembly and commissioning of gas-insulated medium-voltage switchgear units of the GHA series.

It is an integral part of the product and must be stored so that it is readily accessible at all times for and can be used by persons who are to work on the switchgear. If the switchgear is sold to new owners, they must receive this document along with the switchgear.

This Technical Manual is exclusively intended for specialist electricians who have been certified for the GHA series (training certificate).

This Technical Manual cannot describe every imaginable individual case or every customer-specific version of the product. Thus, only the basic assembly procedure is described. The detailed assembly work for the switchgear model in question is illustrated for each operation required in the assembly drawings provided to this effect.

Reference documents

Purchase agreement with the stipulations regarding the switchgear-specific equipment and the legal details

The appropriate switchgear-specific circuit diagrams / documentation

GHA Operating Manual

The Operating Manuals of the devices installed in the switchgear:

– Voltage detection systems, e. g. IVIS (no. AGS 531 751-01)

– Insulating gas monitoring 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 connection systems to be connected to the switchgear

– of the voltage transformers.

The assembly drawings supplied with the equipment

AGS 531 446-01 | Edition 04/2014 5

GHA

Remarks on this manual

Terms and symbols used

This Technical Manual uses certain terms and symbols. They warn about dangers or provide important information which must be complied with in order to avoid danger to persons and damage to equipment:

"Danger!"

This danger symbol warns about dangerous electrical voltage.

Contact with voltage may result in fatal injury!

"Warning!"

This danger symbol warns about the risk of injury. Please comply with all the provisions identified by this symbol in order to avoid death or serious injury.

"Warning!"

This danger symbol warns about the risk of falling.

"Notice:"

This instruction symbol is used for information which is important to avoid material damage.

Abbreviations used

For reasons of simplification, the following abbreviations are used in this manual:

ESS

DSS

SS1

SS2

= Single busbar

= Double busbar

= Busbar 1

= Busbar 2

SS-StW = Busbar current transformer

TrSS = Disconnector in the busbar run

U r

I r

= Rated voltage

= Rated normal current (feeder panel)

Any questions or suggestions?

Do you have any questions or suggestions regarding this manual, or do you require further information?

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

AGS 531 446-01 | Edition 04/2014

GHA

1 Safety provisions

Applicable standards and regulations:

The work described in this manual may only be performed by specialist electricians with proven experience in conjunction with the GHA series and the applicable safety provisions.

Please read the whole manual carefully before working on the switchgear.

Metal-enclosed AC switchgear for rated voltages > 1 kV up to including 52 kV:

IEC 62271-200

Use and handling of sulphur hexafluoride (SF

6

62271-303

) in high-voltage switchgear: IEC

The locally applicable accident prevention, operating and work instructions must be complied with.

Installation: IEC 61936-1/EN 61936-1

1

Operation of electrical equipment: EN 50110-1

1

1

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

Before performing work on the panels, it is essential that you comply with the following instructions:

Danger!

Risk of fatalities due to high voltage. Isolation from high voltage and earthing must always be ensured before performing assembly or maintenance work.

Danger!

Risk of fatalities due to supply voltage. Isolation from supply voltage must always be ensured before performing assembly or maintenance work.

Warning!

Risk of injury due to movable parts in mechanical drives. For maintenance work,

isolate the system from the supply voltage

release the circuit-breaker’s energy storing device by OFF-

ON-OFF operation and make-proof earthing switches by the appropriate ON-operation.

Warning!

After removing covers from a switchgear unit, operator safety may be reduced regarding internal arcs unless the switchgear is isolated from the power supply. Optimum operator safety is only ensured if the switchgear is completely disconnected from the power supply and grounded during assembly.

Behaviour in case of incidents or accidents

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

This Technical Manual does not include information regarding the safety of buildings in case of internal faults (pressure load of the switchgear room and necessary pressure relief ports). Pressure calculations for switchgear rooms incl. recommendations regarding pressure relief ports can be provided on request against a fee. For further details, please contact the manufacturer.

In case of fire or of internal faults, toxic and caustic decomposition products may be produced. Comply with the locally applicable accident and safety provisions.

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

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2 Design, description, variants

2.1 Switchgear panels with single busbar

1

2

3

4

17

16

15

14

13

12

18

1 Busbar tank with three-position switch

2 Jack rings

3 Busbar link

4 Circuit-breaker tank with vacuum interrupter chambers

5 Toroidal-core current transformer

6a Outer cone-type bushing

6b Inner cone-type socket

7 Voltage transformer (optional)

8 Cable support

9 Cable compartment cover

10 Disconnecting device for voltage transformer (optional)

11 Test sockets for cable test

12 Capacitive voltage testing system

13 IDIS indicator for insulating gas monitoring

14 Hinged front frame

15 Manual operator interface

16 Low-voltage cabinet

17 IDIS gas density switch

10

9

17

16

5

6a

7

8

1

2

3

Fig. 1

4

5

11

10

6b

7

8

Fig. 2

Circuit-breaker panel with inner cone-type socket

8

9

AGS 531 446-01 | Edition 04/2014

5

11

10

7

6b

8

GHA

L

R

3

2

1

4

5

6

2 Design, description, variants

7

Fig. 3

Bus section coupler, shown for rated current I

r

≤ 2000 A

L R

9

8

14

13

12

11

1 Right-hand busbar tank with threeposition switch

2 Left-hand busbar tank with threeposition switch

3 Jack rings

4 Busbar link

5 Circuit-breaker tank with vacuum interrupter chambers

6 Toroidal-core current transformer

(optional)

7 Voltage transformer (optional)

8 Cable compartment cover

9 Test sockets (optional)

10 IDIS indicator for insulating gas monitoring

11 Hinged front frame

12 Manual operator interface

13 Low-voltage cabinet

14 IDIS gas density switch

10

6

Fig. 4

Bus section coupler, shown for rated current I

r

≤ 2500 A

AGS 531 446-01 | Edition 04/2014

8

GHA

Busbar attachments

2 Design, description, variants

Fig. 5

Busbar voltage transformers (2 variants available)

Fig. 6

Busbar surge arresters (2 variants available)

Fig. 7

Busbar earthing switch

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GHA

2.2 Panels with double busbar

1

2

19 18 17 16

2 Design, description, variants

1

2

3

4a

5

6

1

2

3

7

Fig. 8

4

1

2

5

20

10

6b

7

8

Fig. 9

Circuit-breaker panel with inner cone-type socket

AGS 531 446-01 | Edition 04/2014

9

9

17

13

12

11

10

18

15

14

1 Gas density switch of the IDIS system for busbar 1 (rear busbar)

2 Busbar link SS1

3 Circuit-breaker tank with vacuum interrupter chambers

4a Outer cone-type bushing

4b Inner cone-type socket

5 Toroidal-core current transformer

6 Voltage transformer (optional)

7 Cable support

8 Cable compartment cover

9 Disconnecting device for voltage transformer (optional)

10 Capacitive voltage testing system

11 IDIS indicator for insulating gas monitoring

12 Hinged front frame

13 Manual operator interface

14 Low-voltage cabinet

15 Gas density switch of the IDIS system for busbar 2 (upper busbar)

16 Busbar link SS2

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

18 Jack rings

19 Tank, busbar 1 (rear busbar) with disconnector

20 Test sockets for cable test

5

11

10

7

6b

8

GHA

2 Design, description, variants

Fig. 10

Bus section coupler, busbar 2 (busbar 1 analogous)

Fig. 11

Bus coupler

Fig. 12

Metering panel with busbar voltage transformer or with busbar surge arrester (not shown)

Fig. 13

Bus section coupler, busbar 2 (busbar 1 analogous)

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GHA

2 Design, description, variants

2.3 Dimensions and weights

Switchgear panels with single busbar (see Fig. 14, page 16)

L R

Panel type

Feeder panel

Bus section coupler

Rated current I

[A]

r

1

≤ 1250

1600

2000

2500

≤ 1250

1600/2000

2500

Panel width A

[mm]

600

600/800 5

Depth

[mm]

2

1330

1380/1330 5

900

800

1330

1330

1380

1000 1330

Depth

[mm]

3

2400/2780

(Height of low-voltage cabinet:

800/1200)

Approx. weight

[kg] 4

700

800

900

1100

900

1100

1300

Bus sectionalizer with disconnector

≤ 2500 600 1330 300

Busbar measurement with current transformer

≤ 2500 600 1330

2600/2780

(Height of low-voltage cabinet:

800/1200)

300

Attached busbar earthing switch +70

Disconnecting device attached to the busbar (for voltage transformer or surge arrester) (panel height depending on the attachment design, see

Chapter 2.1, page 10)

2400 6 /2500 7 +70

Voltage transformer for outgoing feeder cable / busbar

1 In the case of feeder panels, the rated current I r

refers to the feeder (max. busbar nominal current: 2500 A)

2 The values listed in the Tables are referred to a panel depth without pressure relief duct on the rear.

Depth of panels with rear pressure relief duct: 1595 mm

3 – Damping resistor (for optional voltage transformer) on the low-voltage cabinet: specified height +150

– Height of pressure relief duct: 2400

– Height of pressure relief duct with fan: 2600

4 including the low-voltage cabinet, without voltage transformer and for feeder panels with outer cone-type bushing

feeder panels with inner cone-type socket: max. + 200 kg

5

Panels with rear pressure relief duct: max. + 100 kg

The dimensions depend on the cable connection system; inner cone-type socket / outer cone-type bushing system

6 Voltage transformer on the busbar can be removed by pulling it laterally (see Fig. 5, page 10)

7 Voltage transformer on the busbar can be removed by pulling it upwards (see Fig. 5, page 10

+120

(3 x 40)

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2 Design, description, variants

Switchgear panels with double busbar (see Fig. 15, page 16)

1

2

Panel type

Feeder panel

Rated current I

[A]

r

1

≤ 1250

1600

2000

2500

Panel width

A

[mm]

600

600/800 5

Depth 2

[mm]

1700

900

1860

Depth

[mm]

3

Approx. weight

[kg] 4

900

900

1200

1400

Bus section coupler

Bus section coupler

Bus coupler

≤ 1250/1600

2000

2500

≤ 1250/1600

2000

2500

≤ 1250/1600

2000

2500

800

1000

800

1000

600

900

1700

1980

2030

1700

1850

1700

2400/2780

(Height of low-voltage cabinet:

800/1200)

1860

1100

1400

1300

1100

1400

1300

900

1100

1600

1

2

Bus sectionalizer with disconnector

≤ 1600

≤ 2500

600

600

1700

1970

400

450

1

2

Busbar measurement with current transformer

≤ 2500 600 1700 2600/2780 600

1 In the case of feeder panels, the rated current I r

refers to the feeder (max. busbar nominal current: 2500 A).

2 The values listed in the Tables are referred to a panel depth without pressure relief duct on the rear.

3

Technical details and the design for the rear pressure relief duct must be clarified with the manufacturer as required.

– Damping resistor (for optional voltage transformer) on the low-voltage cabinet: specified height +150

– Height of pressure relief duct: 2400

– Height of pressure relief duct with fan: 2600

4 The specified weights apply including the low-voltage cabinet and without the voltage transformer; they refer to feeder panels with outer cone-type bushing.

- Feeder panels with inner cone-type socket: max. + 200 kg

– Panels with rear pressure relief duct: max. + 150 kg

5 The dimensions depend on the cable connection system; inner cone-type socket / outer cone-type bushing

AGS 531 446-01 | Edition 04/2014

GHA

2 Design, description, variants

Panel type

Rated current I

[A]

r

1

Panel width

A

[mm]

Depth 2

[mm]

Depth

[mm]

3

Approx. weight

[kg] 4

Metering panel for voltage transformer

≤ 2500 600 1700 2400 6 /2500 7 400 attached busbar earthing switch

≤ 2500 600 1700 2400/2780 400 attached voltage transformer for outgoing feeder cable / busbar

+ 120

(3 x 40)

1 In the case of feeder panels, the rated current I r

refers to the feeder (max. busbar nominal current: 2500 A).

2 The values listed in the Tables are referred to a panel depth without pressure relief duct on the rear.

3

Technical details and the design for the rear pressure relief duct must be clarified with the manufacturer as required.

– Damping resistor (for optional voltage transformer) on the low-voltage cabinet: specified height +150

– Height of pressure relief duct: 2400

– Height of pressure relief duct with fan: 2600

4 The specified weights apply including the low-voltage cabinet and without the voltage transformer; they refer to feeder panels with outer cone-type bushing.

- Feeder panels with inner cone-type socket: max. + 200 kg

– Panels with rear pressure relief duct: max. + 150 kg

5 The dimensions depend on the cable connection system; inner cone-type socket / outer cone-type bushing

6 Voltage transformer can be removed by pulling it laterally (see Fig. 12, page 12)

7 Voltage transformer can be removed by pulling it upwards

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GHA

6

2 Design, description, variants

5

+150 +200

1 with low-voltage cabinet 800/1200 mm

2 Height depends on the busbar cooler attachments

3 Panel depth depending on rated current I r

of the panel (without/with cooler, see Table)

4 Depth of panel with pressure relief duct

5 Damping resistor

6 Fan attachment

A

Fig. 14

Dimensions of a series GHA single busbar panel

1340/1380

3

1595 4

5 4

+150 +200

1 with low-voltage cabinet 800/1200 mm

2 Height depends on the busbar cooler attachments

3 Panel depth depending on rated current Ir of the panel (see Table)

4 Damping resistor

5 Fan attachment

6 Depth of panel with pressure relief duct

7 Depth of panel with pressure relief duct and bus section coupler of the rear busbars

(I r

= 2500 A)

A 1700/1960

1990 6 /2210 7

Fig. 15

Dimensions of a series GHA double busbar panel

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GHA

2 Design, description, variants

Type GHA switchgear units are:

GHA switchgear units meet the following standards and regulations:

Degree of protection against accidental contact and foreign objects:

2.4 Applicable standards

■ metal-enclosed

SF

6

-insulated

■ type-tested and prefabricated

■ tested for internal faults (qualification IAC)

■ dimensioned for indoor installation

Designation

Switchgear

Standards

IEC 62271-1

IEC 62271-200

IEC 62271-100 Circuit-breaker

Earthing switch

Disconnector

Current transformer

Voltage transformer

IEC 62271-102

IEC 62271-102

IEC 61869-2

IEC 61869-3

Voltage detection systems IEC 61243-5

Protection against accidental contact, foreign bodies and water IEC 60529

Installation

Operation of electrical equipment

IEC 61936-1

EN 50110-1 1

Insulating gas sulphur hexafluoride SF

6

Use and handling of sulphur hexafluoride (SF

6

)

IEC 60376

IEC 62271-303

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

Degrees of protection against accidental contact and foreign objects according to IEC 60529

Main electric circuits IP65

Drive mechanisms

Low-voltage cabinet

Cable compartment

1 optional IP5X

IP2X 1

IP3X 1

IP3X

1

2.5 Environmental and operating conditions

GHA is an indoor switchgear and may only be operated under normal conditions in acc. with IEC 62271-1. Operation under conditions deviating from these is only admissible subject to consultation with and written approval from the manufacturer.

Ambient conditions (in accordance with IEC 62271-1)

Temperature class

Min./max. ambient temperature

Average value over 24 hours mean rel. air humidity: 24 hour/1 month

Installation altitude above sea-level

1 other values available on request

°C

°C

% m

"Minus 5 indoors”

–5 1 /+40 1

≤ 35 1

≤ 95/≤ 90

≤ 1000 1

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GHA

Liability Disclaimers

2 Design, description, variants

2.6 Intended use

Gas-insulated GHA medium-voltage switchgear units are exclusively intended for switching and distributing electrical energies. They may only be used in the scope of the specified standards and the switchgear-specific technical data. Any other utilization constitutes improper use and may result in dangers and 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 the manufacturer;

■ the switchgear is converted without the manufacturer’s approval, or if inadmissible parts are added.

No liability is accepted for parts provided by customers, e.g. current transformers.

2.7 Disposal after the end of service life

The operating equipment contains the fluorinated greenhouse gas SF

6 the Kyoto Protocol with a global warming potential (GWP) of 22 200.

covered by

SF

6

must be recovered and must not be released into the atmosphere. When transporting and handling SF and Controlgear – Part 303 Use and Handling of Sulphur Hexafluoride (SF be complied with.

6

, the specifications in IEC 62271 High-Voltage Switchgear

6

), must

A material and recycling data sheet can be provided on request for the disposal of series GHA switchgear units at the end of their service life.

Disposal is performed as a service by the manufacturer’s Service Center and is subject to a fee.

AGS 531 446-01 | Edition 04/2014

GHA

Packaging

3 Packaging, transport, storage

3.1 Shipping units

Delivery is effected in terms of prefabricated single switchgear panels. One transport unit consists of max. 2 individual switchgear panels which are fastened to the pallet.

The busbar compartment with three-position switch, the circuit-breaker compartment, the drive mechanisms and the supporting structures are mounted ready for connection and routine-tested. The individual busbar links are mounted on site.

The low-voltage cabinets are assembled in the factory or supplied as accessories, depending on the customer’s wishes.

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

For sea transport, the units are packed in sealed aluminium foil with desiccant and in a closed wooden case with tightly closed wooden base (also for container transport).

In case of air transport, the panels are packaged in wooden crates with a protective PE film hood (dust protection) or in wooden crates, also with closed wooden bases, however without protective hoods (dust protection).

Notice:

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

3.2 Transport

Warning!

Danger due to tipping load.

Transport units must be protected sufficiently against slipping and tipping during transport.

Transport using a forklift truck

Abb. 16

Do not tip the transport units

Warning!

Sufficient stability and evenness of the supporting area (floor) must be ensured.

Handle shipping units carefully when unloading and unpacking them

Shipping units must be checked upon receipt. Any damage which may have occurred in transit must be recorded and reported to the manufacturer immediately.

The consignment must be checked for completeness based on the shipping documents.

The supplier must be notified in writing without delay about any possible deviations.

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GHA

3 Packaging, transport, storage

The panel may only be transported on a pallet. The entire length of the forks must be placed under the transport unit (Fig. 17).

Fig. 17

Transport with forklift truck

3.3 Storage

Warning!

Sufficient stability and evenness of the supporting area (floor) must be ensured.

If the panels are not installed immediately after delivery, they can be stored 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 with a dessicant and sealed in aluminium foil (storage period max. 2 years after date of packaging).

– 5 ºC

+ 40 ºC

Fig. 18

Diagram showing the storage conditions

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GHA

AGS 531 446-01 | Edition 04/2014

4 Assembly

4.1 Safety provisions

The switchgear panels may only be installed and assembled by the manufacturer’s staff or by persons who have been certified for this work.

The GHA series switchgear panels are delivered with the circuit-breaker set to

“OFF”, the energy storing device released and the disconnector and earthing switch set to “OFF”.

Warning!

Risk of injury due to movable parts in the mechanical drive. The energy storing device of the circuit-breakers and the earthing switches must not be charged during assembly.

Warning!

Risk of accidents! Watch out for floor openings in the switchgear room.

Danger!

Danger due to insufficient dielectric strength of high-voltage connections in case of assembly under aggravated ambient conditions. During assembly of the busbar link and the high-voltage connections, it is essential to avoid condensation, dirt and dust deposits. At the time of installation, the ambient temperature must amount to ≥ 10 °C.

Warning!

The top sides of the panels are not meant to be walked on. Persons may fall through them, get injured or may damage the panel.

When work has to be performed on the panel top - e.g. assembly of deflectors, fans or pressure relief ducts - temporarily position a solid mounting rack to step on.

Warning!

Risk of injury due to non-respect of the safety provisions in Chapter

1, on page 7.

4.2 Important instructions for assembly

Notice:

Switchgear with pressure relief duct (see Chapter 8, as of page

67): The pressure relief duct must be mounted before the panel is positioned on the base frame.

Condensation, dirt and dust should be avoided during assembly on all accounts, in order to prevent damage to the panels.

For assembly, observe the assembly drawings supplied with the equipment. Read them before you commence assembly work.

The drawing numbers are specified in this manual under the description of the assembly work in question.

For all screw connections, refer to the tightening torques specified in the Annex.

The transport securing device on the busbars must not be removed before assembly of the busbar link acc. to Chapter 4.7 on page 32.

21

GHA

4 Assembly

4.3 Requirements regarding the switchgear room

Notice:

Before installing the switchgear panels, make sure that the switchgear room is checked according to the customer-specific switchgear documentation.

Observe the minimum distance between the switchgear and the wall of the building.

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

Check base frame for dimensions and tolerances in position.

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

Before the switchgear is positioned at its site of installation, check that the base frame dimensions are precisely correct.

– Flatness: ±1 mm/meter

– Straightness: ±1 mm/meter

– Parallelism: ±1 mm/meter

– Height difference over the entire length of the switchgear: ±2 mm

Design data of GHA switchgear: Examples for various switchgear panel variants

50 50 100

1

4

8

2 3

7

460/660

660

5

180

600/800

2

600/800

800

900

Fig. 19

Location of base frame and ceiling ducts (example: double busbar switchgear)

1 Rear gap cover

2 Steel base frame

3 Ceiling duct for high-voltage connections

4 Wall of building

5 Possible cross-bracings

6 Cooler attachments

7 Side wall

8 Side wall extension for double busbar switchgear

800

900

35

6

AGS 531 446-01 | Edition 04/2014

GHA

4 Assembly

≥100

1340 ≥1700

Fig. 20

Example of panels with single busbar in the switchgear room

≥500

1700

≥2100

Fig. 21

Example of panels with double busbar in the switchgear room

AGS 531 446-01 | Edition 04/2014

GHA

≥500

1

1595

4 Assembly

≥1700

Fig. 22

Example of panels with single busbar and pressure relief duct in the switchgear room

1 Switchgear accessible from the rear: ≥ 800

≥500

1

1990 ≥2100

Fig. 23

Example of panels with double busbar and pressure relief duct in the switchgear room

1 Switchgear accessible from the rear: ≥ 800

AGS 531 446-01 | Edition 04/2014

GHA

L ≥

900

4 Assembly

4.4 Transporting the panels on the construction site

Warning!

Make sure the rope or chain is strong enough to bear the weight of the panel and the trucks. Comply with the relevant provisions for hoisting equipment.

Warning!

On lowering the panels, make sure that the supporting platform is sufficiently stable and even.

Warning!

Risk of tipping over. During transport, pay attention to the weight distribution. The center of gravity is at gas tank level in the upper part of the switchgear panel. Never move panels without using transport aids.

Warning!

Risk of accidents. Pay attention to floor openings!

4.4.1 Transport of panel by means of a crane

1. Remove transport packaging (protective films).

2. Attach rope/chains to the jack rings located on the busbar tank (Fig. 24).

Notice:

The ropes must have the following minimum lengths: L ≥ 900 mm

3. Release transport fastening device of the panel from the transport pallet (Fig.

24, item 1).

4. Lift the panel carefully with the crane.

5. If necessary, mount transport rollers (Fig. 26). Description of assembly, see following page.

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

1

1

Fig. 24

When lifting, make sure that at least the minimum rope length L is used.

1 Transport fastening

Fig. 25

Panels with cooler and busbar attachments

1 Use an additional frame for crane transport.

Fig. 26

Mounting the transport rollers (see

Chap. 4.4.2, page 26)

AGS 531 446-01 | Edition 04/2014

GHA

Assembly

4 Assembly

4.4.2 Transport using the transport frame

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

1. Insert locating pins of transport frame into the lateral bore-holes in the supporting structure of the switchgear panel, and secure them by means of the two knurled screws (Fig. 27, 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 stop in the direction of the arrow till it reaches its stop.

3. The panel is lifted.

5

3

4

Panels with center of gravity located in the rear part (e. g. single busbar panel with bus section coupler on the rear busbar)

1 2

Fig. 27

Mounting the transport rollers

1 Transport frame

2 Knurled screws

3 Front toggle lever

4 Rear lifting device with push-button

5 Switchgear panel

These panels are delivered from the factory with additional supporting profiles mounted. The supporting profiles must not be removed during assembly.

For transport on the floor, the transport rollers must be secured to the supporting profiles to the left and right of the supports provided to this effect (Fig. 28).

Remove a supporting profile before screw-fastening the panel to an adjacent panel.

A supporting profile - left-hand or right-hand - must always be left mounted to the panel as long as the panel is not screw-fastened to the adjacent panel. Remove supporting profile after having screw-fastened the panels.

Fig. 28

Panel with pre-assembled supporting profiles and attached transport rollers

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GHA

4 Assembly

4.4.3 Transporting the panels onto the base frame

1. Place two U profiles (not included in scope of supplies) on the base frame as traversing aid and block them by (lower) stops against slipping in the base frame (Fig. 29, item 1).

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

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

4. Remove transport rollers and U profiles.

1

2 3

Fig. 29

Moving the panel on the base frame

1 U profiles with stop edges as traversing aid

2 Transport frame

3 Switchgear panel

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GHA

4 Assembly

4.5 Attachment of pressure relief duct

Switchgear units are provided with pressure relief duct, if the following is required:

Accessibility in acc. with IEC 62271-200: Qualification IAC AFLR (accessibility from all sides) and/or

Qualification IAC AFL(R) internal arc 40 kA/1 s

Notice:

The pre-assembled pressure relief duct supplied with the equipment must be mounted before the panel is positioned on the base frame.

After installation of the panels, mounting may no longer be possible in part.

Fig. 30

Switchgear panel with single busbar and pressure relief duct

Fig. 31

Switchgear panel with double busbar and pressure relief duct

The attachment of the pressure relief duct is described in the assembly drawing in question:

Panel width

[mm]

Busbar system

Single busbar

Double busbar

Pressure relief from the switchgear room with customized duct

AGS002105-02

AGS002105-04

AGS002105-06

AGS002105-07

AGS003216-01

Pressure relief into the switchgear room

Internal arc qualification

IAC AFLR,

25 kA/1 s

Internal arc qualification

IAC AFLR,

40 kA/1 s

AGS003379-01 2

for fan attachment

AGS002105-04

AGS002105-06 AGS002105-15 1

AGS002105-07 AGS002105-16 1

AGS003216-01

AGS002105-08 AGS003379-08

AGS002105-10 AGS002105-10

AGS002105-12 AGS002105-12

AGS002105-14 AGS002105-14

AGS003216-02 AGS003216-02

AGS002105-08 AGS002105-08 AGS002105-18 3 ■

1 Optional fan attachment

2 only to be used for panels without busbar top structure, in this case AGS002105-02

3 only in case of I r

= 2500 A

AGS 531 446-01 | Edition 04/2014

GHA

Unlocking the cable compartment cover

4 Assembly

4.6 Remove cable compartment cover and shutters

4.6.1 Cable compartment interlock (optional)

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

1. Charge spring mechanism of the circuit-breaker (Fig. 32, item 3). Earth the outgoing feeder cable (see Operating Manual).

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

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

Notice:

After removing the cable compartment cover, it is impossible to push the slide (Fig. 32, item 2) down. The earthing switch remains locked.

1

2

00346

Locking the cable compartment cover

3

Fig. 32

Unlock/lock cable compartment cover

1 Insertion opening for manual actuation of the earthing switch

2 Slide for locking/unlocking the cable compartment cover

3 Charge the spring mechanism of the circuit-breaker drive manually (as long no supply voltage is applied).

Interlocking matrix

Cable compartment cover

Earthing switch screw-fastened removed

ON

OFF

Earthing switch

unlocked locked

Cable compartment cover

– unlocked locked

After assembly of the cable compartment cover, press interlocking slide (Fig. 32, item 2) down.

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

AGS 531 446-01 | Edition 04/2014

GHA

4 Assembly

Removing cable compartment cover

4.6.2 Remove cable compartment cover and shutters

Notice:

Store screws, bolts and shutters carefully for subsequent reuse.

1. Open front frame:

– Operating shutter without inspection glass:

Release the two securing bolts (Fig. 33, item 1).

– Operating shutter with inspection glass:

Open interlocking mechanism using the double-bit key (Fig. 34, 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.

1

4

4

2

1

3

3

Fig. 33

Operating shutter without inspection glass

1 Securing bolts of the front panel

3 Securing bolts of cable compartment cover

4 Hinged front frame

Fig. 34

Operating shutter with inspection glass

2 Lock and double-bit key

3 Securing bolts of cable compartment cover

4 Hinged front frame

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GHA

4 Assembly

Unscrewing the shutters

Notice:

Identify panel in accordance with the nameplate on the operating shutter to avoid confusion.

1. Release screw connection of the operating shutter (Fig. 35, item 5) from the

4 fastening points and remove shutter

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

1

2

5

Fig. 35

Removal of shutters

1 Hinged front frame

2 Operating shutter

3 Cable compartment cover

4 Cable tray cover

5 Screw connection of operating shutter (4 x)

4

3

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GHA

4 Assembly

4.7 Installation of panels

4.7.1 Installation of the first switchgear panel

Notice:

The position of the first panel is decisive for placement of the subsequent panels, thus it is essential that measuring is effected with the utmost precision!

1. Place the panel on the base frame according to the switchgear-specific space assignment plan (see Chapter 4.4.3, page 27).

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

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

4. Remove shutters from the panels as described in Chapter 4.6 as of page 29.

4.7.2 Removal of transport securing device

Remove transport securing device above the high-quality electrical joints of the busbar link.

– Remove plastic cover from the busbar bushing (Fig. 36).

– The plastic hood above the silicone sleeve is attached laterally and on top of the retaining clip (Fig. 37). Remove plastic hood carefully applying little force only.

Fig. 36

Plastic cover on the busbar bushing

Fig. 37

Plastic hood above the silicone sleeve

AGS 531 446-01 | Edition 04/2014

GHA

4 Assembly

Apply special grease and spread it uniformly by means of the sponge element.

4.7.3 Pre-coat the high-quality electrical joints of the busbar link

Notice:

Make sure the high-quality electrical joints are absolutely clean.

Special grease (art. no. AGS 003371-01) and the sponge element

(art. no. S 065969) are either included in the scope of supplies or must be purchased separately, depending on the agreement concluded.

In case of doubt, please contact the manufacturer as required.

1. Clean the high-quality electrical joints of the busbar link (Fig. 40) using white spirit (art. no. S 009 002) and a lint-free cloth (also micro-fibre cloths).

2. For each side of a high-quality electrical joint, press a length of approx. 10 mm substance out of the tube and apply it using the sponge element (Fig. 40). In the beginning, apply slightly more (approx. 15 mm), as the sponge also absorbs grease.

One tube (90 g) is sufficient for approx. 36 complete high-quality electrical joints

(72 high-quality joint surfaces).

Abb. 38

Special grease (art. no. AGS 003371-

01)

1

Abb. 39

Sponge element (art. no. S 065969)

AGS 531 446-01 | Edition 04/2014

1

10-15

10-15

Fig. 40

High-quality electrical joint at the busbar bushing

1 Make sure that the inner diameter is greased thoroughly!

Fig. 41

High-quality electrical joint on the silicone sleeve

1 Make sure the electrode ring is clean!

3. Use the sponge element to spread a uniform thin film of the the special grease over the entire surface. Blank spots not covered by grease should be avoided on all accounts. Once treated, do not touch the surfaces of the high-quality electrical joints any longer.

Notice:

Busbar bushing (

Fig. 40): Check especially the inner diameter of the high-quality electrical joint for non-greased areas and, if necessary, re-coat.

Check the electrode ring in the silicone sleeve (

Fig. 41, item 1) for cleanness and the absence of grease and, if necessary, clean.

GHA

4 Assembly

4.7.4 Preassembling the clamping contacts

1. The following factory setting of the clamping contacts (Fig. 42) must be checked prior to assembly:

Turn the two screws until the two clamping contacts are in loose contact, then turn the screws back by a half turn of the thread.

2. Clean and grease busbar contact surfaces and contact points on the clamping contact (see Chapter 13.3, page 92).

3. Carefully slip the clamping contacts into the busbar tubes of the left-hand panel.

1

3

Fig. 42

1 Check the clamping contact screws.

2 Clean and grease the contact surfaces

3 Insert the contact tips

2

AGS 531 446-01 | Edition 04/2014

GHA

153±2

1

2

3

4 Assembly

4.7.5 Screw-fastening the panels to one another

1. Push panels carefully together. Clearance between busbar tanks: 153 ± 2 mm

(Fig. 43, item 1).

2. Connect panels to one another

(assembly drawing AGS 000913-01):

– front panel screw connection:

9 x self-locking screw M8 to its stop (Fig. 43, item 3).

Panels with a width of 900 or 1000 mm are screw-fastened using compensating shutters (see Chapter 4.8, page 36).

– rear panel screw connection:

Screw-fasten connecting link to the jack ring plate

2 x self-locking screw connection M8 (Fig. 43, item 2).

Panel types Mat. no.

All panel variants, except busbar current transformers

Busbar current transformer

Pressure relief duct without with

AGS000913-03

AGS000913-01

AGS000913-02

AGS000913-05

2

9x

Fig. 43

Screw-fastening the panels to one another

1 Check setting 153 ± 2; measuring location: Edge shown on the busbar tank

2 Rear panel screw connection: fasten connecting link

3 Screw-fasten panels on the front.

AGS 531 446-01 | Edition 04/2014

GHA

4 Assembly

Required nominal width of the compensating shutter depending on the panel arrangement:

4.8 Compensating shutters for the panel front

Compensating shutters are only required for panels with a width of 900/1000 mm

(see also switchgear-specific documentation), panels with a width of 600/800 mm do not require compensating shutters in-between each other. The shutters are always supplied in preassembled condition as accessories. The compensating shutter variants are subdivided in accordance with the following dependencies:

– Height of low-voltage cabinet 800 mm or 1200 mm

– Nominal width of compensating shutter 50 mm or 100 mm, depending on panel arrangement (see Table)

Panel with panel width [mm]

Panel width, adjacent panel

(left-hand or right-hand)

[mm]

900/1000

600/800

900/1000

Rated width, compensating shutter (left-hand or righthand)

[mm]

50

100

5

1

A

A

4

2

3

3/5 4 4 1/2

50

900/1000

Fig. 44

Compensating shutters in the panel front

1 Upper compensating shutter, width

100 mm

2 Lower compensating shutter, width

100 mm

100

3 Lower compensating shutter, width

50 mm

4 Screw connection M8 (12 x per shutter)

5 Upper compensating shutter, width

50 mm

AGS 531 446-01 | Edition 04/2014

GHA

4 Assembly

Front compensating shutter, attachment to panel

In-line panel, lefthand

Panel width

In-line panel, lefthand

Panel width

In-line panel, lefthand

Panel width

600/800

900/1000

In-line panel, lefthand

Panel width

600/800/900/1000

In-line panel, lefthand

Panel width

600/800

900/1000

In-line panel, lefthand

Panel width

600/800/900/1000

In-line panel, lefthand

Panel width

LV cabinet height End panel, left-

800 1200 hand

600/800 mm

■ ■ not required

AGS003372-01

AGS003372-02

LV cabinet height End panel, left-

800 1200 hand

900/1000 mm

■ AGS003372-01

LV cabinet height

800 1200

AGS003372-02

Center panel

600/800 mm

LV cabinet height

800

1200

not required

AGS003372-01

AGS003372-02

AGS003374-01

AGS003374-02

AGS003372-01

+AGS003374-01

AGS003372-02

+AGS003374-02

Center panel

900/1000 mm

AGS003372-01

+AGS003374-01

AGS003372-02

+AGS003374-02

LV cabinet height End panel, right-

800 1200 hand

600/800 mm

■ ■ not required

AGS003374-01

AGS003374-02

LV cabinet height End panel, right-

800 1200 hand 900/1000 mm

■ AGS003374-01

■ AGS003374-02

LV cabinet height End panel, left-

800 1200 hand

900 mm

■ AGS002596-01

■ AGS002596-02

AGS002597-01

AGS002597-02

In-line panel, right-hand

Panel width

600/800

900/1000

In-line panel, right-hand

Panel width

600/800/900/1000

In-line panel, right-hand

Panel width

600/800

900/1000

600/800

900/1000

In-line panel, right-hand

Panel width

600/800/900/1000

In-line panel, right-hand

Panel width

In-line panel, right-hand

Panel width

In-line panel, right-hand

Panel width

600/800

900/1000

AGS 531 446-01 | Edition 04/2014

GHA

4 Assembly

Front compensating shutter, attachment to panel

In-line panel, lefthand

Panel width

600/800

900/1000

In-line panel, lefthand

Panel width

600/800

900/1000

LV cabinet height

800 1200

Center panel

900/1000 mm

AGS002598-01

AGS002598-02

AGS002599-01

AGS002599-02

AGS002596-01

AGS002596-02 ■

■ AGS002597-01

■ AGS002597-02

LV cabinet height End panel, right-

800 1200 hand 900 mm

AGS002600-01

AGS002600-02 not required

In-line panel, right-hand

Panel width

600/800

900/1000

600/800

900/1000

In-line panel, right-hand

Panel width

AGS 531 446-01 | Edition 04/2014

GHA

4.9 Busbar link: B link

4 Assembly

SS2

L3

L2

L1

L1

SS1

L2

L3

Fig. 45

Overview of designations for busbars and phase angle

– Upper busbar = SS2 – Rear busbar = SS1

Detail drawing of a

B-link

AGS 531 446-01 | Edition 04/2014

1 2 3 4

Fig. 46

Overview of busbar link

1 Busbar support with high-quality electrical joint

2 Busbar

3 Spacer pin

5 6

7

4 Retaining clip

5 Busbar clamping contacts

6 Silicone sleeve with securing half-shells

GHA

4 Assembly

Tool for pressing the silicone sleeve back (see also Annex,

Chapter 13.2, page 85)

4.9.1 Press silicone sleeve back

Fig. 47

Tool for compressing the silicone sleeve - fork

Fig. 48

Tool for compressing the silicone sleeve (alternative) - claw fastener

To get access to the pre-assembled clamping contacts and to complete the busbar link, it is necessary to press the silicone sleeve back.

To this effect, only the auxiliary equipment approved by the manufacturer may be used, e.g. the fork Fig. 47 and the claw fastener Fig. 48.

Position the tool according to the illustration and press the silicone sleeve back.

Relieve the silicone sleeve. To do so, slowly release the silicone sleeve using the tool being used, and remove the tool.

Notice:

Switchgear units with fan are equipped with a current transformer on the busbar link for fan control. Before mounting the busbar link, refer to

Chapter

4.9.6, page 47

.

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GHA

4 Assembly

4.9.2 Connecting the busbar (fasten preassembled clamping contacts)

Notice:

The two lugs of the upper clamping contact must be located between the busbar tubes.

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

1. Position the preassembled clamping contacts (see Chapter 4.7.4, page 34) acc. to Fig. 49, item 2. The two lugs of the upper clamping contact must be located between the busbar tubes (see Fig. 49, item 4).

2. Tighten the clamped connection with a torque of 8 ± 1 Nm.

3. After tightening the clamped connection applying the specified torque, remove the red film from the sandwich label (5). A green stripe appears which indicates that the busbar link has been established correctly.

8 ± 1 Nm

1

5

4

0-3 mm

4

2

3

Fig. 49

Busbar link

1 Tool

2 Clamping contacts

3 Busbar

4 Locating lugs

5 Sandwich label

AGS 531 446-01 | Edition 04/2014

GHA

R ≤ 5 µΩ

E

4 Assembly

4.9.3 Contact resistance measurement of busbar screw fastening

Notice:

Comply with the manufacturer’s specifications regarding the contact resistance measuring unit.

1. Set the feeder panel for resistance measurement in testing position (A)

(Fig. 50): Switch disconnector and circuit-breaker ON, refer also to operating manual.

2. Connect the clip-on ammeter probes of the contact resistance measuring unit to the high-voltage cable connection in the right-hand panel (B).

Illustrated: Outer cone-type bushing. Use suitable current probes for the inner cone-type bushing.

3. On the lined-up panel, connect clip-on ammeter probes of the contact resistance measuring unit to the busbar tube by means of inner cone-type current probes (C).

4. Apply test current 100 A DC (D).

5. Measure contact resistance R between the busbar tube and the lug of the clamping contact (E). Set value R: ≤ 5 μΩ.

If the measured value exceeds the specified value:

– Undo busbar screw fastening.

– Clean contact surfaces carefully and repeat the mounting and measuring procedure.

In this way, check the contact resistance of all phases between all panels.

A

00243

B

C

D

100 A DC

Fig. 50

Contact resistance measurement

AGS 531 446-01 | Edition 04/2014

GHA

4 Assembly

Checking high-quality electrical joints

Mounting the retaining clips

4.9.4 Fasten silicone sleeve to adjacent panel

Notice:

Check pre-coated high-quality electrical joints again for absolute cleanness.

The surfaces of the high-quality electrical joint must be coated completely and uniformly with a thin layer of special grease.

Check high-quality electrical joints for non-greased areas and, if necessary, coat again, see Chapter 4.7.3, page 33.

6. Relieve the silicone sleeve. To do so, slowly release the silicone sleeve using the tool being used, and remove the tool.

7. Clean spacer pins (accessories, Fig. 46, item 3, page 39) and welding studs and coat them with a screw locking compound (see Chapter 13.3, page 92).

Screw-fasten spacer pin onto the welding studs.

8. Slip retaining clip onto the two pins. The sides of the retaining clip must butt against the retaining lugs of the securing half-shells.

Subsequently, position the cage with the cup springs and fasten retaining clip by means of a M8 self-locking nut. The surfaces of the high-quality electrical joint must be compressed by the retaining clip.

3

2

1

(10 ± 1,5 Nm)

4

(12 ± 1,5 Nm)

AGS 531 446-01 | Edition 04/2014

Fig. 51

Fastening the silicone sleeve to the adjacent panel

1 Spacer pin

2 Retaining clip

3 Cup spring package

4 Nut

GHA

4 Assembly

4.9.5 Cover of busbar link in case of panels without pressure relief duct

Panel width, adjacent panel, left-hand

[mm]

600/800

600/800

900/1000

600/800

900/1000

600/800

900/1000

SS-StW

SS-StW

600/800

900

Panel width

[mm]

600

800

600/800

900

900

1000

1000

600/800

900

SS-StW

SS-StW

Assembly drawing

Single busbar Double busbar

AGS003202-01

AGS003202-01

AGS003204-01

AGS003205-01

AGS003206-01

AGS002609-02

AGS002610-02

AGS003215-03

AGS003215-04

AGS003215-01

AGS003215-02

AGS003202-02

AGS003203-02

AGS003204-02

AGS003205-02

AGS003206-02

AGS003205-02

AGS003206-02

AGS003215-07

AGS003215-08

AGS003215-05

AGS003215-06

1

2

Fig. 52

Cover of busbar link

1 Cover of upper busbar link

2 Cover of rear busbar link

AGS 531 446-01 | Edition 04/2014

GHA

4 Assembly

Cover of busbar link in case of panels with pressure relief duct

SS-Stw 600

Panel width

[mm]

800

900

Fig. 53

Cover of busbar link in case of panels with pressure relief duct

adjacent panel, right-hand

Panel width

[mm]

Busbar system

1000 SS-Stw 600 800 900 1000

Single busbar

Double busbar

■ ■

■ ■

■ ■

H

■ ■

O

O = Bus section coupler with upper busbar separation (SS2)

H = Bus section coupler with rear busbar separation (SS1)

Mat. no.

AGS002115-05

AGS002115-03

AGS003217-01

AGS002115-04

AGS002115-06

AGS003217-02

AGS002115-06

AGS002115-02

AGS002115-07

AGS003217-05

AGS002115-08

AGS002115-09

AGS003217-06

AGS003217-03

AGS003217-04

AGS003217-07

AGS003217-08

AGS003217-09

AGS003217-10

AGS002115-10

AGS002115-11

AGS002115-14

AGS 531 446-01 | Edition 04/2014

GHA

4 Assembly

Panel width

[mm] adjacent panel, righthand

Panel width

[mm]

Busbar system

LV cabinet

Height

[mm]

Cover

Pressure relief device

Cover SS (to the right-hand adjacent panel)

Cover

LV cabinet

■ ■

■ ■

■ ■

■ ■ ■

■ ■

■ ■

■ ■

■ ■

■ ■

■ ■

■ ■

■ ■

■ ■

■ ■

■ ■

■ ■

■ ■

■ ■

■ ■

■ ■

■ ■

■ ■

■ ■

■ AGS002113-01 AGS003386-03 -

AGS002113-03 AGS003386-01 AGS003416-02

■ AGS002113-03 AGS003386-01 AGS003416-04

■ -

AGS002113-03 AGS003386-02 AGS003416-02

■ AGS002113-03 AGS003386-02 AGS003416-04

AGS002113-04 AGS003386-05 AGS003416-03

■ AGS002113-04 AGS003386-05 AGS003416-05

■ -

-

-

AGS003416-02

AGS003416-04

AGS002113-04 AGS003386-05 AGS003416-03

■ AGS002113-04 AGS003386-05 AGS003416-05

■ AGS002113-02 AGS003386-03 -

AGS002113-05 AGS003386-01 AGS003416-02

■ AGS002113-05 AGS003386-01 AGS003416-04

AGS002113-05 AGS003386-02 AGS003416-02

■ AGS002113-05 AGS003386-02 AGS003416-04

AGS002113-06 AGS003386-05 AGS003416-03

■ AGS002113-06 AGS003386-05 AGS003416-05

■ -

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

AGS003416-02

AGS003416-04

AGS003416-02

AGS003416-04

AGS003416-02

AGS003416-04

AGS003416-03

AGS003416-05

AGS 531 446-01 | Edition 04/2014

GHA

Description and variants overview

4 Assembly

4.9.6 Current transformer on the busbar for fan control

To control fans for disconnectors on the busbar, a toroidal-core current transformer is factory-mounted for each busbar; this transformer is positioned as follows:

Single busbar: an der hinteren Phase (on the rear phase (normally designated as L3)

Double busbar:

Upper busbar (SS2): on the rear phase (L3)

Rear busbar (SS1): on the upper phase (L1)

1

2

3

3 4

4

Fig. 54

The illustration shows a panel in double-busbar design.

The busbar curent transformer is mounted to the single busbar panel in analogy to the upper busbar.

1 Busbar current transformer SS2

2 Busbar current transformer SS1

3 Silicone sleeve

4 Retaining plate for current transformer

AGS 531 446-01 | Edition 04/2014

GHA

4 Assembly

Mounting current transformers to the busbar for fan control

1 7

Assembly workflow for busbar link (B link)

2

3

4

5

6

Fig. 55

1 Retaining clip

2 Securing half-shells, rear

3 Current transformer

4 Securing half-shells, front

5 Silicone sleeve

6 Retaining plate for current transformer

7 Wiring of current transformer

To ensure that the silicone sleeve can be pressed back sufficiently during busbar assembly, the current transformer must be disconnected and displaced previously.

The current transformer as such must not be disassembled.

1. Unscrew the retaining clip of the B link (Fig. 55, item 1).

2. Remove the securing half-shells (item 2).

3. Detach the current transformer from the retaining plate (item 6).

4. Push the current transformer into the position of the removed securing halfshells.

5. Assemble the busbar link acc. to Chapter 4.9 as of page 39.

6. After having completed the busbar link, push the current transformer back to its initial position and re-fasten it to the retaining plate.

AGS 531 446-01 | Edition 04/2014

GHA

4 Assembly

7. Remount the two securing half-shells (Fig. 56, item 2) to the silicone sleeve (3).

Notice:

Make sure that the securing half-shells are positioned correctly!

The bead of the silicone sleeve (

Fig. 56, item 5) must be in the groove of the securing half-shell (8).

Comply with the tightening torque 12 ± 1.5 Nm for screw-fastening the securing

half-shells.

8. Push retaining clip (Fig. 56, item 1) onto the two bolts (6). The sides of the retaining clip must butt against the retaining lugs of the securing half-shells.

Subsequently, position the cup spring package (7) and secure it to the retaining clip using a self-locking nut M8 (6). The surfaces of the high-quality electrical joint must be compressed by the retaining clip.

4 3

2

1

9

8

7

6

(12 + 1.5 Nm)

AGS 531 446-01 | Edition 04/2014

Fig. 56

Re-fastening the silicone sleeve to the panel side from which it was previously detached

1 Retaining clip

2 Securing half-shells, rear

3 Silicone sleeve

4 Securing half-shells, front

5 Bead

6

7

8

9

Threaded pin M8 with self-locking nut M8

Spring cup package

Groove of securing half-shell

Hex. socket-head screw M8

GHA

4 Assembly

4.10 Reinforcement

Required in case of

■ internal arc strength acc. to IEC 62271-200, qualification IAC AFL(R), internal arc 40 kA/1 s

Seismic design / vibration-resistance

Fan attachment without with

Panel width adjacent panel, left-hand

600/800

600/800

900/1000

600/800

900

900

1000

SS-StW

SS-StW

600/800

900

Panel width

Assembly drawing

Single busbar Double busbar

600

800

AGS003389-01 AGS003389-02

AGS003389-01 AGS003389-02

600/800 AGS003389-03 AGS003389-04

900/1000 AGS003389-05 AGS003389-06

900

1000

AGS003389-07 AGS003389-08

AGS003389-09 AGS003389-10

900 AGS003389-09 AGS003389-10

600/800 AGS003389-11 AGS003389-12

900 AGS003389-13 AGS003389-14

SS-StW AGS003389-15 AGS003389-16

SS-StW AGS003389-17 AGS003389-18

Fig. 57

Reinforcements

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4 Assembly

4.11 Screw-fastening the panel to the base frame

Notice:

The switchgear panels may not be screw-fastened to the base frame before they have all been installed and adjusted.

Cut thread M8 in the base frame at the securing points provided to this effect

(Fig. 58). To this effect, drill initial holes of Ø 6.8. Screw-fasten the panels 2 x each on the front and rear.

2

3

1

4

1

Additional securing points

(optional)

Fig. 58

Fastening points in the base frame

If the rear fastening points are not accessible, e. g. due to voltage transformers, fastening links (Fig. 59) can be mounted.

Screw-fasten both fastening links to the panel's supporting structure.

Cut a thread M8 in the base frame on the specified fastening points. To this effect, drill initial holes of Ø 6.8.

1

2

3

Fig. 59

Rear fastening links

1 Rear base frame

2 Fastening link

3 Screw connection

600

Panel width

[mm]

800

900

1000

Seismic design / vibration-resistance without

with

Mat. no.

AGS002206-01

AGS002206-02

AGS002206-03

AGS002206-04

The base frame must be designed in view of the seismic design. The panels are fastened to the base frame by means of screws M12.

AGS 531 446-01 | Edition 04/2014

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4 Assembly

The earth bars are screwfastened from panel to panel by means of connecting bars (Fig.

57, item 3).

4.12 Mounting the earth bus

Notice:

Observe the specific standards referring to earthing systems which apply in the country in question.

1. Clean all contact areas of the connecting bar and the appropriate earth bar in the switchgear panels and coat them with lubricant (KL) (see Chapter 13.3, page 92).

2. Slip the connecting bar into the adjacent panel's supporting structure through 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 the panel.

4. Mount the connecting piece for switchgear earthing (Fig. 60, item 6). Connect the earth bus to the earthing system of the switchgear building. Connecting lines and screw accessories are not included in the scope of supplies.

Connecting piece for switchgear earthing: AGS 000294-03

Panels with base plates: Observe Chapter 9.1, page 73.

The earth bus should be connected to the earth conductor of the building's earth connection at least at the first and at each tenth panel of the switchgear.

Panel width

Adjacent panel

[mm]

Assembly drawing

Panel width

[mm]

600 (also for end panel right-hand)

800 (also for end panel right-hand)

600

900 (also for end panel right-hand)

900

1000

600/800

900

600/800

900

600/800

900

AGS 000294-01

AGS 000294-02

AGS 000294-04

AGS 002510-01

AGS 002510-02

AGS 002510-03

AGS 002510-04

6 ( 13 mm)

3

4

2

1

5

Fig. 60

Mounting the earth bar and connecting bar

1 Earth bar

2 Support brackets

3 Connecting bar

4 Screw-fastening the support brackets to the earth bar and the connecting bar

5 Screw-fastening the support brackets to the panel

6 External point of connection for the earth bus of the panel

AGS 531 446-01 | Edition 04/2014

GHA

5 Busbar attachments

5.1 Safety provisions

Warning!

When performing assembly work on busbar attachments, the appropriate disconnecting device must be in earthed position (see

Operating Manual).

Warning!

Please comply with the safety provisions in Chapter

1, page 7.

5.2 Assembly of surge arresters

Notice:

Remove grease and silicone from the contact surfaces and insulating areas on the inner cone-type sockets in the tank and on the surge arresters before assembly.

Comply with the assembly instructions of the surge arrester.

1. Clean and grease contact surfaces on the surge arrester and inside the inner cone-type socket (see Chapter 13.3, page 92).

2. Clean the insulating areas of the surge arrester and in the inner cone-type socket carefully and apply a uniform film of special paste (see instructions for assembly of the surge arrester).

3. Slip surge arrester in correct axial position into the inner cone-type socket and screw-fasten it.

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

Fig. 61

Surge arrester

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5 Busbar attachments

5.3 Assembly of voltage transformers

Rated voltage U r

[kV]

≤ 24

> 24

Assembly drawing

AGS 001861-02

AGS 001861-01

Notice:

Remove grease and silicone from the contact surfaces and insulating areas on the inner cone-type sockets in the tank and on the voltage transformers before assembly.

Observe the instructions for assembly of the voltage transformers.

The weight of the transformers must be taken into consideration!

Support the transformer or secure it by attaching a crane hook to the transformer jack rings.

1. Clean and grease contact surfaces on the transformer connector and inside the inner cone-type socket (see Chapter 13.3, page 92).

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

3. Push voltage transformer into inner cone-type socket in correct axial direction and screw-fasten it (Fig. 62, item 2); 4 x M8 self-locking nut.

Fasten transformer additionally to angle bracket (4).

2 x M8 self-locking screw

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

5. Mount cover plate (5) above the transformer cables.

2 x M5 Torx screw

6

8

5

2 4 1

3

7

3

Fig. 62

Assembly / disassembly of busbar voltage transformer

1 Attachment with disconnecting device on busbar

2 Connecting socket and flange fastening

3 Voltage transformer

4 Angle bracket

5 Cover plate for transformer wiring

6 Terminal connection of transformer cables

7 Fastening by means of cable clamp

8 Fastening the protective hose

AGS 531 446-01 | Edition 04/2014

GHA

5 Busbar attachments

The voltage transformers are inserted from above into the inner cone-type socket in the busbar tank (optional, Fig. 63).

Assembly is effected as described above.

AGS 531 446-01 | Edition 04/2014

Fig. 63

Voltage transformer attachment from above

Rated voltage U r

[kV]

≤ 24

> 24

Assembly drawing

AGS 002260-02

AGS 002260-01

GHA

6 Low-voltage cabinet

2

1

6.1 Assembly

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

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

2. Assign the low-voltage cabinet to the appropriate panel. Remove the packaging of the low-voltage cabinet and place the cabinet on the lifting table (Fig. 64).

Raise lifting table until the low-voltage cabinet is above the drive area.

3. Carefully push the low-voltage cabinet onto the panel above the drive area, align it and screw-fasten it to the panel. To this effect, open the switch cabinet door using the double bit key.

Lower screw fastening (1): 4x M8 self-locking screw; rear screw fastening (2): 4x M8 self-locking screw.

4. Screw-fasten the low-voltage cabinets laterally to one another (3).

Screw-fasten by means of a M8 self-locking screw connection, depending on the height of the low-voltage cabinet 800/1200: 2x/3x.

Assembly drawing: AGS 003252-02

Top view

6

2x/3x

5

3

4

4x

1

2

4x

Fig. 64

Mounting the low-voltage cabinet

1 Lower screw fastening (4x)

2 Rear screw fastening (4x)

3 Lateral screw fastening (2x/3x)

4 Lifting table

5 Low-voltage cabinet

6 Spacer

56 AGS 531 446-01 | Edition 04/2014

GHA

6 Low-voltage cabinet

Connecting internal control lines of panel:

6.2 Connecting the control lines

1. Slip the terminals of the drive box wiring onto the terminal strips in the low-voltage cabinet according to the marking on the connector (Fig. 65).

2. Close opening in the base of the low-voltage cabinet to the drive area by means of a cover plate (2).

5 x M6 self-locking screw connection.

Connecting the ring circuits:

1

3

2

Fig. 65

1 Drive wiring to terminal strip in low-voltage cabinet

2 Cover plate

3 Fastening the cover plate

1. Route the secondary lines for the intra-panel wiring through the lateral rubber sleeves of the low-voltage cabinet (Fig. 66).

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

1

2

AGS 531 446-01 | Edition 04/2014

Fig. 66

1 Ring circuits between panels

2 Connection of the ring circuits to terminal strips

GHA

6 Low-voltage cabinet

Placing external control lines in the switchgear panel:

Customized low-voltage lines for control and measuring purposes can be routed on the right-hand inside of each panel (Fig. 67).

1. Route external cables from the cable basement into the cable compartment of the panel (1) and place them in the right-hand cable tray of the panel to the lowvoltage cabinet (3).

Fasten cables to the panel by means of cable clamps (2).

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

3. Re-fasten metallic cable tray covers in the supporting structure (4).

4 x M8 self-locking screw

3

1

Fig. 67

Placing external control cables

1 External control lines

2 Cable clamp

3 Low-voltage cabinet

4 Metallic cable tray covers

2

1

4

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GHA

7 Switchgear termination

7.1 Attachment of the protective tank to the left-hand / right-hand end of the busbar

On the busbar end, a protective tank must be mounted on the left and right sides of the voltage-proof busbar caps.

2

1

Models without pressure relief duct

Models with pressure relief duct

Fig. 68

Protective tanks at the busbar end

(example) for

1 upper busbar

2 rear busbar (in case of double busbar switchgear)

Double busbar Panel width [mm]

600/800

900/1000

End panel

left-hand side righthand side left-hand side righthand side

Single busbar

1 x AGS001760-01

1 x AGS001760-02

AGS002570-05

AGS002570-02

AGS001760-05

+AGS001760-03

AGS001760-02

+AGS001760-04

AGS002570-01

+AGS002570-03

AGS002570-02

+AGS002570-04

Panel width [mm]

600/800

900/1000

End panel

left-hand side righthand side left-hand side righthand side

Single busbar

AGS001760-30

AGS001760-31

AGS001760-32

AGS001760-33

Double busbar

AGS001760-35

+ AGS001760-20

AGS001760-31

+ AGS001760-21

AGS001760-32

+ AGS001760-22

AGS001760-33

+ AGS001760-23

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7 Switchgear termination

7.2 Switchgear without pressure relief duct

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

7.2.1 Overview

Variants:

– The switchgear is accessible from the front and from the right-hand side (the switchgear is located in the left-hand corner of the room, Fig. 69).

– The switchgear is accessible from the front and from both sides (Fig. 70).

– 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, without illustration).

Notice:

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

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

100

+30 1

3

2

≥1700

3

100

Fig. 69

Design example: Switchgear located in the left-hand corner of the room

1 Rear gap cover (see page 64)

2 Operating area

3 Side wall (see Chapter 7.2.2, page 61)

AGS 531 446-01 | Edition 04/2014

GHA

7 Switchgear termination

100

1

≥1700

3

2

≥1700

1

100

+30

-0

Fig. 70

Design example: The switchgear is accessible from the front and from both sides

1 Gap cover (see page 64)

2 Operating area

3 Side wall (see Chapter 7.2.2)

7.2.2 Attachment of the right-hand or left-hand side wall

Height of low-voltage cabinet [mm]

800

1200

Assembly drawing of side wall left-hand side right-hand side

AGS 000630-01

AGS 000630-02

AGS 000630-03

AGS 000630-04

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GHA

7 Switchgear termination

If applicable, remove the covers of the lateral cable ducts in the cable compartment

(Fig. 71, 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-locking screws.

3. Fasten base plate to the spacer bar (9). 2 x M8 self-locking screws. Cut thread

M8 in the base frame.

4. Screw-fasten top and bottom side wall sections (4) to one another (6);

6 x M8 self-locking screw connections.

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

– side wall to base plate (1); 5 x M8 self-locking screw.

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

– side wall to low-voltage cabinet (7) (see also Chapter 6.1); 3 x M8 selflocking screws.

– rear side wall fastening (5) with the retaining plate on the panel;

3 x M8 screw fastening (only required for ESS, not for DSS).

5

7

5

4

8

11

2

11

1

10

2

9

1

3

Fig. 71

Attaching the right-hand side wall

1 Base plates

2 Fire-protection plates

3 Cable tray cover

4 Top and bottom side wall sections

5 Rear screw fastening of the side wall to the panel

6 Screw fastening of the two side wall sections

7 Screw fastening the side wall to the low-voltage cabinet

8 Screw fastening the side wall to the panel supporting structure

9 Screw fastening the base plate to the base frame

10 Screw fastening the base plate to the panel

11 Screw fastening the fire-protection board to the base plate

AGS 531 446-01 | Edition 04/2014

GHA

7 Switchgear termination

7.2.3 Extension of side wall in double busbar switchgear

Height of low-voltage cabinet [mm]

800

1200

Assembly drawing of side wall left-hand side right-hand side

AGS 000633-01

AGS 000633-02

AGS 000633-03

AGS 000633-04

In double busbar switchgear, the side wall (Chapter 7.2.2, page 61) is extended to the rear (Fig. 72).

1. Mount side wall acc. to Chapter 7.2.2, page 61.

2. Screw-fasten upper and lower cover bracket (Fig. 72, item 5) and upper and lower termination plates (1 and 2) to the side wall (4).

3. Mount the rear fastening link (3).

1

5

AGS 531 446-01 | Edition 04/2014

3

4

2

Fig. 72

Side wall extension for double busbar switchgear

1 Upper termination plate

2 Lower termination plate

3 Fastening link with screw fastening

4 Screw-fasten the termination plates and cover bracket to the side wall

5 Upper and lower cover bracket

GHA

7 Switchgear termination

Rear gap cover

Wall clearance

[mm]

100

500

100

500

4

3

2

5

1

Height of

LV cabinet

[mm]

800 1200

100 +30

≥ 50

Busbar system Mat. no. in case of side wall side

ESS

Attachment on the front to end wall or at the ear to end wall

DSS

Attachment only at the rear to end wall left-hand side right-hand side

AGS001967-01 AGS001967-02

AGS001967-07 AGS001967-08

AGS001963-01 AGS001963-02

AGS001963-07 AGS001963-08

The rear gap cover is installed between the mounted side wall and the rear wall of the building (Fig. 73).

The nominal width of the gap cover is 100 mm for single busbar and 500 (≥ 300) mm for double busbar. Assembly is performed identically.

1. Screw-fasten upper and lower gap covers (1) to the side wall.

11 x M8 hex. bolt

2. Apply gap cover (2) on wall side as shown in the drawing and mark securing bore-holes on the wall of the building and on the mounted gap cover.

3. Remove gap cover on wall side. Provide securing bore-holes for the mounted gap cover (Ø 4.5) and for the building wall (Ø 10). Subsequently, fit dowel pins in the wall of the building.

4. Screw-fasten gap cover on building wall.

9 x M8 hex. bolt

5. Screw-fasten both gap covers to one another.

9 x M5 hex. bolt.

3

2

5

1

4

A

Fig. 73

Rear gap cover (shown for left-hand switchgear end, 100 mm wall clearance)

1 Front gap cover

2 Gap cover on the wall side

3 M5 hex. bolt

4 M8 hex. bolt

5 Fastening to building wall: Dowel and M8 hex. bolt

AGS 531 446-01 | Edition 04/2014

GHA

7 Switchgear termination

7.3 Attachment of fan

4

3

2

1

Angular bracket

(Fig. 74, item 3)

Attachment of angular bracket on the low-voltage cabinet

(Fig. 74, item 3)

Cover plate

(Fig. 74, item 1)

Fig. 74

Fan attachment

1 Cover plate

2 Fan

3 Angular bracket on the low-voltage cabinet

4 Low-voltage cabinet

Panel width [mm]

800/900

1000

Height, low-voltage cabinet

[ mm ]

800

1200

Mat. no.

AGS003149-02

AGS003154-02

AGS003149-03

AGS003154-03

Height, low-voltage cabinet [ mm ]

800 1200

Mat. no.

AGS003181-01

AGS003181-02

Panel width [mm]

900 1000

Panel width, adjacent panel, right-hand [mm]

600 / 800 / 900 / 1000

600 / 800 / 900 / 1000

Mat. no.

AGS003183-13

AGS003183-12

AGS 531 446-01 | Edition 04/2014

GHA

Fan

(Fig. 74, item 2, 65)

7 Switchgear termination

Panel variant

Bus section coupler 2500 A

Feeder panel 2500 A

Bus section coupler 2500 A

Feeder panel 2500 A run 2500A 1

Feeder panel 2500 A

1

1

Current transformer in the busbar run 2500A

Disconnector in the busbar run 2500 A

Disconnector in the busbar run 2500 A

Disconnector in the busbar

Bus section coupler 2500 A

1

1

50 Hz 60Hz

Single busbar

Busbar system

Double busbar

Mat. no.

AGS002723-04

AGS002723-03

AGS002723-08 +

AGS002723-06

AGS002723-07 +

AGS002723-09

AGS003216-04

AGS003515-01

AGS003515-01 +

AGS003532-01 +

AGS000982-04

AGS003515-01 +

AGS003532-02 +

AGS000982-04

AGS002723-07 +

AGS003678-01

AGS002723-08 +

AGS003678-02

1 only possible in conjunction with pressure relief duct

AGS 531 446-01 | Edition 04/2014

GHA

8 Switchgear with pressure relief device

8.1 Overview

Switchgear units with pressure relief duct are accessible on all sides and can thus be located centrally in the room.

Notice:

The pressure relief duct must be mounted before the panel is positioned on the base frame (see Chapter

4.5, page 28). After installation of the panels, mounting is no longer possible.

The customized pressure relief duct and the pressure relief flap are not included in the scope of supplies.

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

The pressure relief ducts and the side walls are attached on the construction site.

Switchgear with pressure relief duct: Model with pressure relief from the switchgear room

Model with pressure relief into the switchgear room

Fig. 75

Switchgear panel with single busbar and pressure relief duct

Fig. 76

Switchgear panel with double busbar and pressure relief duct

Available for:

Accessibility in acc. with IEC 62271-200: Qualification IAC AFLR (accessibility from all sides) and/or

Qualification IAC AFL(R) internal arc 40 kA/1 s

The connection for a customized pressure relief duct is integrated on the left and/or right in the side wall (see switchgear-specific documentation).

Available for:

Switchgear with pressure relief duct and opening into the switchgear room

Internal arc strength acc. to IEC 62271-200, qualification IAC AFL(R), internal arc ≤ 25 kA/1 s (40 kA/1 s)

AGS 531 446-01 | Edition 04/2014 67

GHA

8

3

8 Switchgear with pressure relief device

2

180

1

5

4

520

2

6 7

180

180

180 520

6

4

7

2

1

Fig. 77

Illustrated: Switchgear with single busbar, accessible on all sides

1 Switchgear

2 Side walls (see Chapter 8.4, page 66)

3 Integrated pressure relief duct of the switchgear (see Chapter 4.5, page 28)

4 Connection for switchgear pressure duct with connecting flange

5 Wall of building

6 Customized pressure relief duct

7 Pressure relief flap in the wall of the building

8 Assembly aisle for switchgear not accessible from the rear switchgear accessible from the rear: ≥ 800

2

AGS 531 446-01 | Edition 04/2014

GHA

8 Switchgear with pressure relief device

8.2 Cover plate

Required in case attached pressure relief duct

SS-

Panel width [mm]

StW 600 800 900 1000

Panel width, adjacent panel, righthand [mm]

600 / 800

900 / 1000

600 / 800

900 / 1000

600 / 800 / 900 / 1000

Pressure relief from the switchgear room 40kA

800/1200 LV cabinet

AGS002115-16

AGS002115-15

AGS002115-17

AGS002115-16

AGS003216-03

Pressure relief into the switchgear room 40kA 1200 mm LV cabinet

AGS003216-03

Fig. 78

Cover plate

AGS 531 446-01 | Edition 04/2014

GHA

8 Switchgear with pressure relief device

8.3 Attachment of pressure relief duct

2

1

Fig. 79

1 Reinforcement

Panel width [mm]

600

800

900

1000

2 Pressure relief duct

Busbar system

ESS

DSS

Assembly drawing

AGS002110-05

AGS002110-06

AGS002110-05

Single parts for pressure relief duct

Panel width

[mm] adjacent panel, righthand

Panel width [mm]

Busbar system

600 800 900 1000 600 800 900 1000 ESS DSS

■ ■ ■ ■ ■

■ ■ ■

■ ■

■ ■

■ without without without without

Pressure relief

AGS002103-04

AGS002103-04

AGS002103-05

AGS002103-05

AGS002103-05

AGS002103-05

AGS002103-06

AGS002103-06

AGS002103-04

AGS002103-05

AGS002103-05

AGS002103-06

AGS002103-04

AGS002103-04

AGS002103-05

AGS002103-05

-

-

-

-

Reinforcement Special attachments

AGS002104-01 AGS002103-03 1

AGS002104-02 AGS002103-03 1

AGS002104-01 -

AGS002104-02 -

AGS002104-02 AGS002103-12 2

AGS002104-03 AGS002103-12 2

AGS002104-02 AGS002103-08 3

AGS002104-03 AGS002103-08 3

AGS002104-02 -

AGS003481-02 -

AGS002104-02 -

AGS003481-02 -

-

AGS002103-03 1

AGS002103-12

AGS002103-08

2

3

■ ■

AGS002103-05

AGS002103-05

AGS002103-06

AGS002103-06

AGS002104-03 AGS002103-12

AGS003481-04 AGS002103-12

AGS003481-01 AGS002103-08

AGS003481-03 AGS002103-08

2

2

3

3

■ ■ ■ AGS002103-06 AGS002104-03 AGS002103-08 3

1 Item number required in case of pressure discharge 40 kA into the room, item number AGS002103-04 deleted

2 Item number required in case of fan attachment 2500 A FB900 and pressure relief duct; item number AGS002103-05 deleted

3 Item number required in case of fan attachment 2500 A FB1000 and pressure relief duct; item number AGS002103-06 deleted

AGS 531 446-01 | Edition 04/2014

GHA

8 Switchgear with pressure relief device

8.4 Attachment of side walls for pressure relief from the switchgear room

1

520

Fig. 80

Side wall with connection flange for customized pressure relief duct (item 1)

Height LV cabinet

800

[mm]

1200

Busbar system

ESS DSS

Connection flange for customized pressure relief duct* left-hand side right-hand side

Mat. no. in case of side wall on the

Panel width (600, 800, 900) left-hand side

AGS002130-01

AGS002175-01

AGS002123-02

AGS002124-02

AGS002130-05

AGS002175-05

AGS002130-05

AGS002124-06

AGS002130-03

AGS002175-01

AGS002123-04

AGS002124-02

AGS002130-07

AGS002175-05

AGS002130-07

AGS002124-06

* required for routing the pressure relief duct outwards at the side of the end panel to the left or right

right-hand side

AGS002123-01

AGS002124-01

AGS002130-02

AGS002175-09

AGS002130-06

AGS002124-05

AGS002130-06

AGS002175-06

AGS002123-03

AGS002124-01

AGS002130-04

AGS002175-09

AGS002130-08

AGS002124-05

AGS002130-08

AGS002175-06

AGS 531 446-01 | Edition 04/2014

GHA

8 Switchgear with pressure relief device

8.5 Attachment of side walls for pressure relief into the switchgear room

Height LV cabinet

[mm]

800 1200

ESS

Busbar system

DSS

Fig. 81

Side wall without connection flange and model with pressure relief into the switchgear room

Internal arc strength, qualification IAC

AFLR, internal arc (1s)

25 kA

40 kA

Mat. no. in case of side wall on the

Panel width (600, 800, 900) left-hand side right-hand side

AGS002123-02

AGS002124-02

AGS002123-01

AGS002124-01

AGS002130-05

AGS002124-06

AGS002123-04

AGS002124-02

AGS002130-07

AGS002124-06

AGS002130-06

AGS002124-05

AGS002123-03

AGS002124-01

AGS002130-08

AGS002124-05

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GHA

9 High-voltage connection

Preassemble base plate in the panel

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

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

Danger!

Risk of fatalities due to high voltage!

The transport protection caps provided by the factory on the highvoltage terminals are not voltage-proof.

Before commissioning, replace the transport protection caps by voltage-proof covers.

9.1 Cable compartment with base plates (optional)

The cable compartment of a panel can be designed optionally with mounted base plates. Thus, the cable compartment and the cable basement are separated from each other.

1. For assembly of the high-voltage cables, remove the front base plates and the plastic sleeves (Fig. 82).

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

3. After mounting the cables, position plastic sleeves, then reinsert and screwfasten the removed base plate.

3

1

2

4

Fig. 82

Panel with base plates

1 Base plate

2 Plastic sleeves

3 High-voltage cable (cable support not shown)

4 Perforated sheet metal cutout for connection of a connecting cable to the switchgear earth bus (see also Chapter 4.12, page 52). Break sheet-metal cutouts out as required.

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9 High-voltage connection

9.2 Outer cone-type bushing

Standard design of the outer cone-type bushings:

■ in acc. with EN 50181, terminal type C (screw-type contact with internal thread

M16 and reinforced conductor pin for 1250 A rated current)

■ for cable Tee screw-type plugs

L1

L2

L1

L2

L3

Fig. 83

1 x outer cone-type bushing per phase with one double cable connection each

L1

L1

L1

L1

L1

L2

L2

L3

Fig. 84

2 x outer cone-type bushing per phase with one triple cable connection each

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GHA

Dimension drawings

9 High-voltage connection

191

191

1 2 3

600

96

229 229

635,5

1 2 3

800

564

Fig. 85

Dimension drawings for outer cone-type bushing with one terminal per phase (top) and with two terminals per phase (bottom)

Warning!

The cable support must be adjusted and the cable/cable connector must be fastened so that no additional forces act on the outer cone-type bushing! The bushings may be damaged due to inadmissible stress, so that insulating gas can escape.

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

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

The switchgear is accessible from the front to enable assembly of the cable connection systems. To this effect, remove front cable compartment covers (see Chapter

4.6.2, page 30).

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GHA

Cable assembly

9 High-voltage connection

Danger!

Close vacant outer cone-type bushings with surge-proof caps (not included in the scope of supplies).

1. Put the adjustable cable supports (Fig. 86, item 4) in the required position and fasten them (horizontally and vertically adjustable).

2. Mount cable connectors according to the manufacturer's Assembly Instructions.

3. Remove the protective transport caps from the appliance couplers. Use a cleaning agent to remove grease and silicone from the appliance couplers (see

Chapter 13.1, page 90).

4. Coat contact areas of Cu insert on the appliance coupler and screw-type contact with a thin grease film (see Chapter 13.3, page 92).

5. Treat insulating surfaces as specified by the manufacturer of the cable connector. Slip cable connector on the appliance coupler.

The cable connection to the outer cone-type bushing (thread M16) must be tightened with a max. torque of 50 Nm. Observe the manufacturer's specifications.

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

7. Connect earthing cables (2) of cable and cable connector to the cable support

(3). Coat contact surfaces (see Chapter 13.3, page 92).

If surge arresters are provided, the switchgear can be equipped additionally with retaining plates to which the fasteners for surge arresters can be mounted.

The contact areas of the earth connections must be coated as described in the

Annex.

For assembly, refer to the instructions of the manufacturer of the surge arresters.

1

2

3

4

5

Fig. 86

High-voltage cable connector, outer cone-type, screw-type contact

1 Screw-type contact

2 Cable connector

3 Earth conductors

4 Cable supports, adjustable

5 Cable clip

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9 High-voltage connection

L1

L1

L2

L3

9.3 Inner cone-type socket

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

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

Notice:

When shrink-fitting cable end boxes, make sure that the cable connection area of the panel is not heated beyond the admissible service temperature.

We cannot accept any liability for consequential damage (e.g. damaged cables of the capacitive indicator) which might result from shrink-fitting components in the cable compartment using an open flame.

An accessible cable tray must be provided below the panel for assembly of the cable supports and the high-voltage cables.

Fig. 87

Inner cone-type sockets with cable supports above spacer bar level

Fig. 88

Inner cone-type cable socket with cable supports below spacer bar level (attachment on site)

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GHA

9 High-voltage connection

Installation of the cable support

(only required for models acc. to Fig. 87)

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.

Base plates in the accessories

Fig. 89

Attachment of cable support in case of inner cone-type socket design acc. to Fig. 90

Installation of the base plates (optional and only for versions acc. to Fig. 90).

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 cable before mounting the cable connectors.

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

1

Fig. 90

Installation of the base plates

1 Floor pan

2 Cable support

3 Divided base plates

4 Plastic sleeves

2

3 4 (2)

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GHA

9 High-voltage connection

Cable assembly

Warning!

The cable support must be adjusted and the cable/cable connector must be fastened so that no additional forces act on the inner cone-type socket! The bushings may be damaged due to inadmissible stress, so that insulating gas can escape.

1. Mount cable connector (Fig. 91, item 2) according to the instructions of the cable connector manufacturer.

2. Remove transport protective caps from the appliance couplers

(socket-contacts). Remove grease and silicone from appliance couplers using a cleaning agent (see

Chapter 13.1, page Fig. 90).

3. Slightly grease contact surfaces on the appliance coupler and on the cable connector (see Chapter 13.3, page 92).

4. Treat insulating surfaces as specified by the manufacturer of the cable connector. Insert cable connector in inner cone-type socket

(press down) and screw-fasten safely. Tighten screw fastenings M8 with a torque of 15 ± 3 Nm.

5. If necessary, re-adjust cable support (5), align cables and fasten them to the cable support using cable clips (4).

6. Connect earthing cables (3) of cable and cable connector to the cable support (5). Coat contact surfaces (see Chapter 13.3, page 92).

Fig. 91

1

2

Socket contacts

Cable connector

3 Earth conductors

4 Cable clip

5 Cable support

1

2

3

4 5

Connector shell with conductive contact surface with reference to switchgear's metal enclosure:

Danger!

Close unused inner cone-type sockets with surge-proof dummy plugs

If the metallic connector housing features a conductive contact surface touching the metal enclosure of the switchgear

(applies to Pfisterer model, system

CONNEX): Do not connect the cable's earth conductor to the connector housing (contact-making). Make sure that the earth conductor is connected directly to the cable support.

Fig. 92

Connection of cable earth conductor if cable-type transformers are used

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80

10 Commissioning

10.1 Final steps

10.1.1 Attachment of the tool board

1. Fasten tool panel at choice to the left or right side of the side wall (depending on switchgear installtion) (Fig. 93); 2 x M5 Torx screw.

2. Place operating elements and instruction manuals on the tool board acc. to Fig.

92.

3

4

2

8

9

7

1

5

6

Fig. 93

Tool board attachment

1 Tool board

2 Fastening by means of a M5 Torx screw

3 Double-bit key for low-voltage cabinet

4 Crank for actuation of earthing switch / disconnector

5 Handle for transformer disconnecting device (inner cone-type cable socket)

6 Spring charging crank for energystoring device

7 Assembly and Operating Instructions

8 Handle for transformer disconnecting device (outer cone-type cable bushing)

9 Service address

10.1.2 Cleaning and checking assembly

Danger!

The high-voltage supply must not be connected. All active parts must be earthed.

Clean the switchgear, removing contamination resulting from assembly work.

Remove all the attached information tags, cards, brochures and instructions no longer needed.

Check the tightening torques of all screw fastenings and connections established on the site of installation:

– Cable fittings on appliance couplers

– Surge-proof covers on the appliance couplers

– Earth conductor

– Panel screw fastenings

– Special attachments

Notice:

Make sure the fastening of the silicone sleeves and busbar connection are no longer detached.

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10 Commissioning

10.1.3 Remount covers (see Chapter 4.6, page 29)

Lateral low-voltage cable tray cover

Cable compartment cover

Operating shutter

Close front frame again.

10.1.4 Damaged paint

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

10.1.5 Inspection

Check the switchgear for damage which might be due to transport or assembly work.

Compare data on nameplate to the required ratings.

Check rated supply voltage of control and operating devices.

Check wiring laid on site.

Check insulation gas monitoring:

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

10.2 Commissioning

Danger!

The high-voltage supply must not be connected. All active parts must be earthed.

Notice:

Refer to the operating manual of the GHA series.

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

The energy-storing device of the circuit-breaker drive is charged autonomously 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 switch (optional)

– Closing and opening releases for circuit-breaker

5. Check switch position indicators and interlocks.

6. Before connecting, check the connected feeder cables for phase coincidence

(see Operating Manual).

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GHA

General

Preparations

11 Optional high-voltage test on commissioning

11.1 Power frequency withstand test of the busbar

A power frequency test of the busbar can be performed optionally. The test voltage is supplied via the high-voltage terminal of a panel. To this effect, a test unit and test cables are required, which are not included in the scope of supplies.

Warning!

Comply with the safety provisions in Chapter

1, page 7.

Danger!

No high-voltage cables must be connected in the incoming feeder panel for the voltage test and on the busbar. All high-voltage terminals must be closed surge-proof during the test phase.

Earth the residual phases using commercially available earthing devices.

Notice:

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

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

2. Incoming feeder panel for voltage test:

– Remove the cable compartment cover.

– Test phase: Mount test cable to the high-voltage terminal (see Fig. 94).

Open high-voltage terminals must be closed surge-proof during the test phase. Earth the residual phases using commercially available earthing devices.

– Earth the voltage transformers and capacitive measuring points. Disconnect surge arresters.

7

4

82

1

3

Fig. 94

1 Outgoing feeder panels

2 Incoming feeder panel for voltage test

3 Voltage transformer

4 Busbar

5 Test unit (e g. high-voltage source, test transformer)

6 Test cable

7 Busbar voltage transformer

6

2

5

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GHA

11 Optional high-voltage test on commissioning

Power frequency withstand test:

Once the power-frequency test has been completed:

3. Busbar:

– Earth voltage transformer / surge arrester.

– Earth capacitive measuring connectors.

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

4. Power frequency withstand test of the busbar:

– Connect test unit to the test cable.

– Switch earthing switch in the incoming feeder panel OFF.

– Switch disconnector and circuit-breaker in the incoming feeder panel ON.

– Perform power frequency withtstand tests successively for all phases (L1,

L2, L3) according to the specifications of the test unit manufacturer.

Notice:

Observe admissible test values for the switchgear and the admissible test values for power-frequency tests after installation of the switchgear in accordance with IEC 62271-200.

5. Once the power frequency withstand test has been completed, earth all the tested high voltage lines again.

Comply with the applicable safety provisions!

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

– remove the test unit and the test cable,

– reconnect earthed or removed voltage transformers, capacitive measuring connectors or surge arresters.

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

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General

11 Optional high-voltage test on commissioning

11.2 Cable testing

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

The test sockets for inner cones are accessible from the panel front after removal of the cable compartment cover (Fig. 95, page 85).

The busbar can be operated with rated voltage during cable tests in the outgoing feeder (see nameplate).

For cable testing, a test unit and a test adapter are required, which are not included in the scope of supplies.

Danger!

Risk of fatalities due to high voltage. Before the cable test, the outgoing feeder cable must be isolated from the power supply and earthed. The outgoing feeder cable of the remote station must also be isolated from the power supply.

Danger!

Risk of fatalities due to supply voltage. Isolation from supply voltage must be ensured.

Warning!

Risk of injury due to movable parts in mechanical drives.

Release the circuit-breaker’s energy storing device by OFF-

ON-OFF operation and make-proof earthing switches by the appropriate ON-operation.

Warning!

After removing covers from a switchgear unit, operator safety may be reduced regarding internal arcs unless the switchgear is isolated from the power supply. Optimum operator safety is only ensured if the switchgear is completely disconnected from the power supply and grounded during assembly.

Notice:

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

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

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

Admissible limits for the switchgear panels in case of cable tests

U

r

[kV]

12

24

36

40,5

DC test voltage for initial / repeat test

[kV] max. 15 min.

34

67

76

0.1 Hz AC test voltage

[kV] max. 60 min.

19

45

57

62

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GHA

Preparations

Performing the cable test

11 Optional high-voltage test on commissioning

1. Isolate outgoing feeder cable of the appropriate switchgear panel from the power supply.

2. Isolate outgoing feeder cable in remote station.

3. Earth outgoing feeder cable.

4. Remove cable compartment cover (see Chapter 4.6, page 29).

5. Earth connected voltage transformers in the outgoing feeder cable.

6. Short-circuit and earth capacitive measuring points in outgoing feeder cable.

7. Remove surge-proof covers from measuring points:

– Inner cone:

Remove dummy plug

– Outer cone:

Remove terminating elements in Tee plugs as specified by the manufacturer

8. Connect test adapter to test connector and test unit (Fig. 95 and Fig. 96, page

86). Comply with the manufacturer's specifications.

Notice:

Make sure that the distance between the metallic components of the test adapter and the earthed subconstruction of the switchgear is sufficiently dimensioned.

Earth the residual phases using commercially available earthing devices.

1

2

Fig. 95

Test cable for inner cone-type socket (size 2)

1 Test socket

2 Test cable

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GHA

11 Optional high-voltage test on commissioning

1

2

Fig. 96

Cable test, outer cone

1 Cover and adapter

2 Test adapter

9. In case of optional interlocking of the cable compartment cover, the circuit-breaker cannot be switched off until after simulation of a cable compartment cover (Fig.

97).

Warning!

Interrupting the interlocking protection:

With the cable compartment cover removed, the earthing switch interlock may only be eliminated during cable test!

– Swing interlock (1) of the cable compartment cover downwards and keep it in this position.

– Push interlocking slide (2) down; the actuating port for the earthing switch is set free.

2

1

Fig. 97

Unlocking the earthing switch

1 Cable compartment cover interlock

2 Interlocking slide

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GHA

Test position:

– Earthing switch ON

– Circuit-breaker OFF

After the cable test

11 Optional high-voltage test on commissioning

10. Set switchgear panel to test position.

If an intertripping circuit is provided, the circuit-breaker is switched off by actuation of the earthing switch towards “OFF” (Fig. 98).

– Free actuating port of the earthing switch (B) by pushing the interrogation slide (A) upwards, and insert the crank

(C).

– Turn crank counterclockwise by approx. one rotation, until the circuit-breaker has switched OFF (D).

The crank cannot be removed.

A

D

Fig. 98

Set switchgear panel to test position

00243

11. Perform cable test according to the specifications of the manufacturer of the cable or the cable connector, taking the admissible limits into consideration

(see Table on page 86).

Perform cable test for all phases.

B

C

12. Earth outgoing feeder cable again:

– Switch earthing switch completely OFF

– Charge spring mechanism

– Switch earthing switch ON again

13. Remove test set.

– Inner cone-type socket:

Close test socket “surge-proof” using the dummy plug.

– Outer cone-type bushing:

Provide cable fittings with terminating element according to the manufacturer's instructions.

14. Re-connect voltage transformer.

15. De-earth capacitive measuring points in outgoing feeder cable and reset shortcircuit.

16. Mount cable compartment cover again.

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11 Optional high-voltage test on commissioning

11.3 Cable jacket test

If there are no documents to inform whether a cable jacket test may be performed on the cable connection system, the manufacturer of the cable connection system must be consulted before performing such a test.

Warning!

Do not connect the cable's earth conductor to the connector housing (contact-making). Make sure to check the earthing cable directly.

1. To perform the cable jacket test, disconnect the earth connections (Cu shield) from the cable support.

2. To determine any damage on the outer plastic jackets or sheathes between the cable's Cu shield and the earth, apply test DC voltage in accordance with the applicable standard or the instructions of the cable manufacturer.

3. Once the test has been completed, re-mount the earth connection (Cu shield) on the cable support.

Fig. 99

Cable jacket testing principle for outer cone

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GHA

12 Replacement of components and panels

Drive mechanisms, current transformers, voltage transformers, testing and monitoring systems and complete switchgear panels can be replaced as required.

Should you have any queries regarding replacement of components or panels, please contact the manufacturer’s Service Center.

For correct processing of your enquiry, the following data of the nameplate of the panel in question are required (see Operating Instructions AGS 531 441-01, Chapter 2.6):

Type designation

Serial number

Year of construction

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GHA

13 Annex

13.1 Auxiliary products

The auxiliary products are available from the manufacturer. The use of other auxiliary products is not admissible.

Warning!

Risk of injury if these products are handled improperly. Observe the safety data sheets of the manufacturers of the auxiliary products.

Auxiliary products

Cleaning agent

Synthetic lubricant (KL), 0.5 kg can

Liquid lubricant FL, 0.5 kg can

Touch-up pen RAL 7044, silk-grey, 50 ml

Touch-up pen, special paint (specify colour shade)

Screw locking compound Loctite 648 ®

Auxiliary products for assembly of the busbar link

(B-Link)

Cleaning agent Ethanol, type 641 (methylated spirit)

Special grease Klüberalfa ® HBK 83-102

Sponge element lint-free cloth (also micro-fiber cloths) lint-free rubber gloves

Ref. no.

S 008 152

ST 312-111-835

S 008153

S 009 561

S 009 562

ST318-225-001

Ref. no.

S 009 002 Ä

AGS 003371-01

S065969

13.2 Required tools (not included in the scope of supplies)

Cutter

Nail puller approved torque wrenches with different bits for hexagon socket screws and socket-head screws and nuts; bits for screw and nut grades M 5, M 6, M 8, M 10, M 12

Screwdriver and Philips screwdriver

Nipping pliers

4 crane straps / chains each of L ≥ 2000 mm, lifting capacity ≥ 1500 kg lint-free, clean cloths

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GHA

13 Annex

Fig. 100

Transport frame

Fig. 101

Fork to compress the silicone sleeve

Fig. 102

Claw fastener

Fig. 103

Lifting table for low-voltage cabinet

Fig. 104

U profiles with stop as traversing aid

AGS 531 446-01 | Edition 04/2014

Fig. 105

Special hoisting equipment SLAM

GHA

13 Annex

13.3 Coating the contact surfaces

Notice:

Contact areas, once coated with synthetic lubricant, should not be touched, if possible.

1. Contact surfaces must be subjected to preliminary treatment before screwfastening (see Table below).

2. Immediately after the pre-treatment, coat both contact surfaces sparingly with a thin and uniform film of synthetic lubricant so that the space between the contact surfaces is completely filled once the screws have been fastened.

Material of contact surfaces

Silver-plated

Copper or copper alloy

Aluminium

Steel

Galvanized steel

Pre-treatment

Clean

1

Clean 1 , expose metallic surface 2

Clean 1 , expose metallic surface 2

Clean 1 , expose metallic surface 2

Remove passivation, not, however, the zinc layer 3

Clean 1 ; passivation need not be removed Sheet metal, hot dip galvanized

1 Clean by means of a lint-free cloth; use cleaning agent in case of serious contamination

2 Expose metallic surface

- by treating the entire surface with emery cloth or a rotating grinding tool (grain size 100 or 80) or

- using a wire brush which is clearly marked for use exclusively for aluminium or exclusively for copper

3 using a brass brush, steel brush

13.4 Screw locking compound

Notice:

Observe the specifications of the manufacturer of the screw locking compound.

In case the thread reach exceeds 1.2 x the screw diameter and in case of blind hole threads, only wet the nut's thread.

1. Preparing the thread surfaces: clean and degrease thread surfaces using cleaning agent and a lint-free cloth.

2. Application of adhesive: Coat the entire circumference of 2 or 3 threads in the area to be glued with liquid screw locking compound.

Max. time for positioning: 60 sec.

AGS 531 446-01 | Edition 04/2014

GHA

13 Annex

General screw connections

13.5 Specifications for screw connections

Notice:

The threads of screws and bolts must generally not be pre-treated!

Max. tolerance for the effective tightening torques: ±15%

The nut must correspond in strength to the grade of the screw/bolt used or be of better quality.

Screw/bolt

Thread Ø

M 4

M 5

M 6

M 8

M 10

M 12

M 16

M 20

Plastic

0.25

0.5

0.8

1.8

3.5

6.0

12

Screw connection for current transmission

Screws and bolts: Grade ≥ 8.8

Conductor material: copper

Thread Ø Tightening torques [Nm]

M 6 6.5

M 8

M 10

17

35

M 12

M 16

68

135

Grade or material

≥ 8.8 ≤ 10.9

Tightening torques [Nm]

2.6

Self-locking screw

≥ 8.8

5.0

8.8

7.0

12.3

21.0

42.0

70.0

170

330

30.0

59.0

97

Screw connection for terminal strips

Thread Ø

M 2.5 (M 2.6)

M 3

M 3.5

M 4

M 5

Tightening torques [Nm]

0.5

0.7

1.0

1.5

2.5

AGS 531 446-01 | Edition 04/2014

Notes:

Schneider Electric

35, rue Joseph Monier

CS 30323

92506 Rueil-Malmaison Cedex, France

RCS Nanterre 954 503 439

Capital social 896 313 776 € www.schneider-electric.com

AGS 531 446-01 | 04/2014

As our products are subject to continuous development, we reserve the right to make changes regarding the standards, illustrations and technical data described in this Technical Manual. For any requests, please contact the address given below.

Schneider Electric Sachsenwerk GmbH

Rathenaustrasse 2

D-93055 Regensburg, Germany

(

+49 (0) 9 41 46 20-0

7

+49 (0) 9 41 46 20-418

Only integral reproduction of this technical manual is permitted with the written permission from Schneider Electric. Electronic copies in e.g. PDF-format or scanned version have the status “for information only” .

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