FLUOFIX GC

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FLUOFIX GC SF6 insulated RMU INSTRUCTION MANUAL Nº03.000000AMT-04040039-010-000-EN-00

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SAFETY INSTRUCTIONS

Read this manual carefully before proceeding with any handling, operation and maintenance action. Failure to follow safety recommendations, could lead to serious physical and material injury. This manual should be accessible to all people involved in the installation, operation and maintenance of the equipment. The equipment described in this manual were designed and tested to operate within their nominal values. Use outside this range may result in malfunction, and could cause serious physical and material injury. The cells and switches are equipped with safety interlocks making its use simple and secure. Do not force them. This equipment can be remotely controlled and contains live and mechanical parts that move at high speed. In the cells with circuit breakers, never perform checks on the circuit-breaker while it is closed or with the closing springs charged. The circuit breaker must be open and the closing springs discharged. This equipment contains the fluorinated greenhouse gas SF6 covered by the Kyoto Protocol and with a global warming potential (GWP) 22 200. SF6 shall be recovered and not released into the atmosphere. For further information on use and handling of SF6 please refer to IEC 62271-303: High voltage switchgear and controlgear – Part 303 Use and handling of sulphur hexafluoride (SF6).

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CONTENTS 1. GENERAL TECHNICAL DATA ...................................................................................................................... 4 2. MODULAR UNITS ............................................................................................................................................ 5

2.1 IS Unit .......................................................................................................................................................... 5 2.2 CIS Unit ....................................................................................................................................................... 5 2.3 DC Unit ........................................................................................................................................................ 6 2.4 SB Unit ......................................................................................................................................................... 6 2.5 M Unit .......................................................................................................................................................... 6 2.6 CD Unit ........................................................................................................................................................ 7

3. COMPACT UNITS ............................................................................................................................................. 7 3.1 2IS+CIS Unit ................................................................................................................................................ 7 3.2 2IS+SB Unit ................................................................................................................................................. 7 3.3 3IS Unit ........................................................................................................................................................ 8 3.4 2IS+DC Unit ................................................................................................................................................ 8 3.5 2IS+2CIS Unit .............................................................................................................................................. 8 3.6 Other configurations ..................................................................................................................................... 8

4. GENERAL DESCRIPTION OF UNITS ............................................................................................................ 9 5. GENERAL OPERATING MECHANISMS DESCRIPTION .......................................................................... 10 6. AVAILABLE OPERATING MECHANISM OPTIONS ................................................................................. 12

6.1 Locking by padlock .................................................................................................................................... 12 6.2 Locking by lock .......................................................................................................................................... 12 6.3 Electrical equipment ................................................................................................................................... 12

7. SF6 SYSTEM ................................................................................................................................................... 13 8: SHIPPING ........................................................................................................................................................ 13 9. RECEIPT .......................................................................................................................................................... 14 10. INSTALLATION ............................................................................................................................................ 15

10.1 Ground preparation .................................................................................................................................. 15 10.2 Unpacking ................................................................................................................................................ 15 10.3 Site installation ......................................................................................................................................... 15 10.4 Joining extensible units ............................................................................................................................ 15 10.5 Fixing to the ground ................................................................................................................................. 17 10.6 Earth circuit connection ............................................................................................................................ 17 10.7 Cable connection ...................................................................................................................................... 18 10.8 Fuse fitting ............................................................................................................................................... 19 10.9 Fuse calibre definition .............................................................................................................................. 20

11. COMMISSIONING ........................................................................................................................................ 21 11.1 Essential checks ........................................................................................................................................ 21 11.2 Equipment performance ........................................................................................................................... 21 11.3 Power on input cables............................................................................................................................... 21 11.4 Voltage presence control .......................................................................................................................... 21 11.5 Phase relationship control in the "Incoming" functions ........................................................................... 22 11.6 Power on busbar and combined fuse protection ....................................................................................... 22

12. OPERATION .................................................................................................................................................. 22 12.1. Switchgear ............................................................................................................................................... 22 12.2. Opening earth switch (common to CI1 and CI2 operating mechanism types) ........................................ 23 12.3. Closing earth switch (common to CI1 and CI2 operating mechanism types) ......................................... 23 12.4. Switch closing (CI1 operating mechanism - Incoming / outgoing function) ........................................... 24 12.5. Switch opening (CI1 operating mechanism - Incoming / outgoing function) ......................................... 24 12.6. Close switch and reset for opening (CI2 operating mechanism - cable protection function) .................. 25 12.7. Open switch (CI2 operating mechanism - cable protection function) ..................................................... 25 12.8 Circuit breaker spring (re)charging (CDV operating mechanism - Cable protection function) ............... 26 12.9 Circuit breaker operation (CDV operating mechanism - Cable protection function) ............................... 27

13. MAINTENANCE ........................................................................................................................................... 28 14. CABLE TESTING .......................................................................................................................................... 28 15. REPLACEMENT............................................................................................................................................ 29

15.1 Replacement of voltage presence indicator lights .................................................................................... 29 15.2 Fuse replacement ...................................................................................................................................... 29

16. SPARE PARTS ............................................................................................................................................... 29

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1. GENERAL TECHNICAL DATA

Rated voltage 12 kV 17.5 kV 24 kV 36 kV

Insulation level

at power frequency (50 Hz - 1min) 28 kV 38 kV 50 kV 70 kV

at impulse (1.2 / 50µs) 75 kV 95 kV 125 kV 170 kV

Rated current

Busbar 630 A 630 A 630 A 630 A

Incoming / outgoing 400 A

630 A

400 A

630 A

400 A

630 A

400 A

630 A

Fuse protection 200 A 200 A 200 A 200 A

Circuit breaker protection 400 A

630 A

400 A

630 A

400 A

630 A

400 A

630 A

Short circuit current 16 kA (3s)

20 kA (1s)

16 kA (3s)

20 kA (1s)

16 kA (3s)

20 kA (1s)

16 kA (3s)

20 kA (1s)

Making capacity 40 kA

50 kA

40 kA

50 kA

40 kA

50 kA

40 kA

50 kA

Frequency 50 Hz 50 Hz 50 Hz 50 Hz

Internal arc (IAC A-FL) Up to

20kA 1s

Up to

20kA 1s

Up to

20kA 1s

Up to

20kA 1s

Ambient temperature -5 to 40 ºC -5 to 40 ºC -5 to 40 ºC -5 to 40 ºC

Rated filling pressure (at 20ºC) 0.3 bar rel 0.3 bar rel 0.3 bar rel 0.3 bar rel

Loss of service continuity category LSC 2A (according to IEC 62271-200)

Separation class PI (according to IEC 62271-200)

Protection index (IEC 60529 and EN 50102) IP65 (medium voltage compartment)

IP3XC (operating mechanism compartment)

IP3XC (cable compartment)

IK09 (medium voltage compartment)

IK08

Dimensions of units up to 24 kV

Unit Width (mm) Height (mm) Depth (mm) Weight

(kg)

IS 370 1279 727 125

CIS 450 1279 727 155

DC 450 1279 727 155

SB 450 1279 727 115

M 750 1279 892 140

2IS+CIS 1190 1279 727 300

2IS+SB 1190 1279 727 290

3IS 1110 1279 727 270

2IS+DC 1190 1279 727 300

2IS+2CIS 1640 1279 727 400

3IS+CIS 1560 1279 727 380

3IS+2CIS 2010 1279 727 500

4IS 1480 1279 727 360

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Dimensions of 36 kV units

Unit Width (mm) Height (mm) Depth (mm) Weight

(kg)

IS 450 1729 900 230

CIS 450 1729 900 250

SB 450 1729 900 185

M 1000 1729 1155 225

2IS+CIS 1350 1729 900 480

2IS+SB 1350 1729 900 465

3IS 1350 1729 900 430

2IS+2CIS 1800 1729 900 640

3IS+CIS 1800 1729 900 610

4IS 1800 1729 900 575

2. MODULAR UNITS 2.1 IS Unit

Switch disconnector function (IS) Unit for incoming / outgoing of cables fitted with ISFG switch disconnector (CI1 operating mechanism).

2.2 CIS Unit

Transformer protection function (CIS) Unit for transformer protection fitted with fuse carrier and ISFG switch disconnector (CI2 operating mechanism).

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2.3 DC Unit

Cable protection function (DC) Unit for cable protection fitted with DIVAC vacuum circuit breaker (CDV operating mechanism) and ISFG switch disconnector (CI1 operating mechanism).

2.4 SB Unit

Busbar switching function (SB) Unit for switching busbars fitted with ISFG switch disconnector (CI1 operating mechanism).

2.5 M Unit

Measuring Unit (M) Unit for measuring. Can be fitted with current and voltage transformers.

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2.6 CD Unit

Direct incoming function (CD) Unit allows direct cable incoming or outgoing.

3. COMPACT UNITS Available configurations for compact Fluofix GC units are obtained by combining the following base functions:

• Incoming / outgoing function with switch disconnector (IS function)

• Fused transformer protection function (CIS function)

• Direct incoming / outgoing function (CD function)

• Circuit breaker cable protection function (DC function)

• Busbar switching function (SB function) Fluofix GC compact units can be extensible or non extensible. 3.1 2IS+CIS Unit

2IS+CIS compact unit Compact unit with 2 switch disconnector (IS) functions and 1 fused transformer protection (CIS) function.

3.2 2IS+SB Unit

2IS+SB compact unit Compact unit with 2 switch disconnector (IS) functions and 1 busbar switching (SB) function. Unit extensible to the right.

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3.3 3IS Unit

3IS compact unit Compact unit with 3 switch disconnector (IS) functions.

3.4 2IS+DC Unit

2IS+DC compact unit Compact unit with 2 line (IS) functions and 1 circuit breaker cable protection (DC) function.

3.5 2IS+2CIS Unit

2IS+2CIS compact unit Compact unit with 2 switch disconnector (IS) functions and 2 fused transformer protection (CIS) functions.

3.6 Other configurations Other configurations can be supplied on request.

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4. GENERAL DESCRIPTION OF UNITS 1- Fittings for lifting the unit 2- Operating mechanisms compartment 3- Earth circuit connection 4- Cable access panel 5- Watertight stainless steel tank 6- Low voltage compartment 7- Voltage presence indicator 8- Epoxy resin fuse carrier 9- Fuse access panel 10- MV cable clamp

6

7

9

8

10 4

3

2

1

5

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5. GENERAL OPERATING MECHANISMS DESCRIPTION 1 - Lever for manual operation of switch or earth switch 2 - Switch position indicator 3 - Front panel fixing screws 4 - Earth switch lock for "open" position (optional) 5 - Earth switch lock for "closed" position (optional) 6 - Switch lock for "open" position (optional) 7 - Voltage presence indicator 8 - Key slot for earth switch locking operation 9 - Insertion slot for earth switch operation lever 10 - Earth switch controls 11 - Insertion slot for switch operation lever 12 - Switch control (operating mechanism type CI1 in IS function)

13 - Key slot for switch locking operation 14 - SF6 pressure gauge 15 - Locking clip for lever insertion 16 - Switch control (operating mechanism type CI2 in CIS function) 17 - Manual switch operating button (only for CIS functions with CI2) 18 – Circuit breaker closing operation pushbutton interlock (optional) 19 – Circuit breaker operation pushbuttons 20 – Circuit breaker status indicator 21 – Circuit breaker spring status indicator 22 – Circuit breaker spring charger operation shaft 23 – Circuit breaker operation counter 24 – Self-powered protection relay

3 17 7

4 2

1

8 9 10 14 5

6 12 11 13 16 15

18 19 20 21 22 23

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Functioning principle Examples of usage

CI1(M)

"Tumbler" operating mechanism type. The opening and closing operations are executed manually, or electrically, through a motorized system, with speed independent of that of the operator's action. (Time of functioning <=2s to Un)

Used in IS function. Base equipment for the "input output" functions (Starting or stopping the service for part of the network) The CI1M allows remote control of the ISF.

CI2(M)

"Tumbler" operating mechanism fitted with opening-only retention system. The operator manually executes a closing operation following by an equipment arming operation. In this way, the control remains capable of an opening operation, in a reduced time (< 100 ms), using an electromagnet, a triping fuse or an operation button.

Used in the CIS function. Triping of switch by fusion of one or more fuses (protection of a charge by combined fuses). Triping of switch using transformer protection relays. Switch opening.

CDV(M)

Stored energy spring operating mechanism. Opening and closing operations are made applying the springs stored energy to the breaker main shaft, connected to the vacuum interrupters moveable contacts. Operations are performed, in less than 100 ms, through a push-button, a tripping coil or protection relay.

Standard equipment for “Cable protection function with circuit breaker”. CDVM enables the DIVAC G circuit breaker remote operation.

"Tumbler" mechanism functioning principle The lever operation pulls a spring outside its equilibrial position. In this position the spring is released and suddenly stretched independently of the operator.

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6. AVAILABLE OPERATING MECHANISM OPTIONS 6.1 Locking by padlock This kind of locking uses padlocks to block access to the lever insertion slot. All switch and earth switch operating mechanisms can use padlocks.

6.2 Locking by lock This kind of locking uses locks to block access to the lever insertion slot. Each lock has a key which can only be removed in the locked position. It is (optionally) possible to fit 3 locks, which can lock as follows:

• A - Open switch

• B - Open earth switch

• C - Closed earth switch

6.3 Electrical equipment The operating mechanisms for the switch disconnectors and circuit breakers can be fitted with motorization, opening spring, indicators micros, or any other equipment appropriate for remote control of the unit. If necessary an (optional) additional low voltage compartment can be added to allow installation of any other equipment required.

B

A

C

B

A

C

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7. SF6 SYSTEM FLUOFIX GC equipment is sealed for the whole of its life (in accordance with IEC 62271). Various routine tests assure the leak-tightness of this equipment. The service life expectancy of this equipment is 35 years. The stainless steel tank of the FLUOFIX GC is filled with SF6 gas, at a relative pressure of 0.3 bar. If it is necessary to remove the SF6 from inside the tank (the tank was designed to support being completely empty) the recommended procedure is as follows:

• Remove the switchgear cover

• Remove the voltage indicator (this is installed in the valve)

• The valve will then be accessible.

Features of the valve used in FLUOFIX GC tanks:

8: SHIPPING FLUOFIX GC units are shipped with the switch open and the earth switch closed. FLUOFIX GC units are shipped individually on wooden pallets (fixed by four screws and covered with transparent plastic film). Fittings for the assembly and connection of FLUOFIX GC units are packed separately.

9. RECEIPT When the units are received, you should identify and confirm:

• The function through the synoptic

• The rating plate

• That the equipment is in good condition Confirm the presence of the package containing additional fittings.Any anomalies must be noted on the delivery note.

The cubicles must remain fixed to the wooden pallet until they are The cubicles can be moved using the following tools:

• Mobile crane

• Hydraulic pallet truck For the safety of both the mover and the equipment itself, the units must be transported sideways (do not move them facing forwards).

The cubicles must be stored, in their original packaging, sheltered from dust, water and chemical agents, in a dry and welland +40ºC.

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When the units are received, you should identify and confirm:

through the synoptic

equipment is in good condition

Confirm the presence of the package containing additional fittings. Any anomalies must be noted on the delivery note.

120º Max

The cubicles must remain fixed to the wooden pallet until they are assembled.

The cubicles can be moved using the following tools:

For the safety of both the mover and the equipment itself, the units must be transported sideways (do not move them facing forwards).

must be stored, in their original packaging, sheltered from dust, water and chemical agents, in a dry and well-ventilated location, at a temperature between

FLUOFIX GC

120º Max

assembled.

For the safety of both the mover and the equipment itself, the units must be transported

must be stored, in their original packaging, sheltered from dust, water and ventilated location, at a temperature between -25ºC

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10. INSTALLATION 10.1 Ground preparation There must be a flat level of at least 2 mm/m, to allow easy assembly and a good final look. 10.2 Unpacking Have the cubicles close to your assembly site and follow the prescribed order:

• Remove the transparent plastic film

• Open the door of the cable compartment (ensuring that the earth switches are closed)

• Remove the four fixing screws keeping the cubicle on its base (key 17)

• Carefully rotate the unit to free it from its base and put it on the ground according to the transportation instructions

3

2

1

10.3 Site installation

• Remove the door of the front cable compartment

• Position the unit and confirm it is vertical, wedging it if required

• Fix it to the ground 10.4 Joining extensible units Extensible units can only be joined to other extensible units. Extensible units are supplied with an insulating protection cap on each phase. The cap must only be removed to link 2 units.

Tampa isolante para extremidade

Extensibilidade da unidade

External

insulating cap

Extensible unit

To link 2 extensible units you should:

• Remove the insulating cap

• Fit standardizing electrical clips (3 on each unit)24 kV

• Attach the extensibility connector.

Note: Clean and apply silicone to the ends of the extensibility connector and to the units, to assist in the operation.

Pontos para colocauniformiza

Points for attaching standardizing

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To link 2 extensible units you should:

Remove the insulating cap

Fit standardizing electrical clips (3 on each unit) – only required in solutions up to

Attach the extensibility connector.

Clean and apply silicone to the ends of the extensibility connector and to the units, to

Conector

Unidade extensível

Unidade de extensão

ntos para colocação dos clips para uniformização do campo eléctrico

Extension unit

Extension unit

Extensible

unit

Connector

Points for attaching standardizing

electrical clips

FLUOFIX GC

only required in solutions up to

Clean and apply silicone to the ends of the extensibility connector and to the units, to

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10.5 Fixing to the ground Consult the unit installation plan for your configuration, the general dimensions and the recommended ground fixing points. Units are fixed to the ground by means of M8 fixing screws (4 fixing points on the outer cubicles).

20 mm

100 mm

10.6 Earth circuit connection All NORMAFIX components (busbars, cable connections, fuses, etc.) are interconnected and connected to earth through a common circuit. See the common busbar connection point on the diagram below.

(*) (*)

(*) - Common busbar connection points

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10.7 Cable connection The FLUOFIX GC was designed to use removable pre-formed connectors (shielded or unshielded), or thermoretractiles, of the following types:

"Direct" connector

"Elbow" connector

"T" connector

Coiled "T" connectors, for 400/630A junctions in the incoming outgoing functions. The connectors must be compatible with copper or aluminium insulated cables. Raychem RSTI, Euromold K400 or equivalent connectors can be used. Connectors with "direct" or "elbow" fittings for 200A junctions. The connectors must be compatible with copper or aluminium insulated cables. Raychem RSES or RSSS, Euromold K158LR or K152SR or equivalent connectors can be used.

Choosing cables and connectors is the client's responsibility. Cables and connectors must be compatible with FLUOFIX GC equipment. Use connectors with features compliant with DIN 47636 and EDF HN52-S-61 standards. Follow the manufacturers' instructions to install cable connectors.

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10.8 Fuse fitting Open the door of the fuse compartment. (Earth switch must be closed). Remove the cap of the fuse carrier by turning the lever anti-clockwise.

Remove the lever and turn the cap manually (anti-clockwise). The cap of the fuse carrier will be released.

Fit the fuse into the cap of the fuse carrier (hammer towards the lid). Refit the cap (with the fuse) following the reverse procedure. (Confirm the cap is correctly oriented)

Note: Clean the conical edge of the cap (it is not necessary to use silicone).

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10.9 Fuse calibre definition HRC "Backup-fuses" manufactured in accordance with CEI 60282 / DIN 43625. Maximum ambient temperature of 40°C requires maximum power to dissipate: 55 W

Transformer Primary transformer voltage Rating 10/11 kV 13.8 kV 15kV 20kV 24/25 kV 30 kV

kVA Rated current (A) IN (**) 100 16 10 10 10 10 10

125 16 16 10 10 10 10

160 20 16 16 16 10 10 200 25 20 16 16 16 10

250 31.5 25 20 16 16 10 315 40 31.5 25 20 20 16

400 50 40 31.5 25 25 16

500 63 50 40 31.5 31.5 20 630 80 63 50 40 40 25

800 100 80 63 50 50 31.5 1000 125 100 80 63 63 40

1250 160 125 (*) 80 80 50

(*) Fuse definition must consider power loss limits (indicated in fuse documentation). (**) For (IN to: –5ºC ≤ T ≤ +40ºC) and for transformer rating > 1000 kVA the maximum service overcurrent is 1.2 IS. This table is a recommendation of the manufacturer. Can be used a specific table of application / client.

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11. COMMISSIONING 11.1 Essential checks

• Confirm that the busbar, cables, earth circuits and auxiliary BT circuits are correctly connected.

• Confirm that the fuses, busbar and cable field deflectors and cable compartment panels are all correctly assembled.

• Confirm whether the pressure indicator is in the green zone. 11.2 Equipment performance

• Confirm that the equipment and locks are functioning well by operating the Switches and Isolating Switches several times.

11.3 Power on input cables

• Confirm that all the switch disconnectors are in the "open" position. 11.4 Voltage presence control

• Having powered on the IS "A" function cables, check that the voltage presence indicators L1, L2, L3, which are mounted on the control panel, are on.

• Power on the IS "B" function cables and check that the voltage presence indicators are on.

FUNÇÃO I S A

FUNÇÃO IS B

DISPOSITIVO DE CONCORDÂNCIA DE FASES

C

Function IS B

Function IS A

Phase agreement control

device “C”

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11.5 Phase relationship control in the "Incoming" functions Confirm the phase agreement by using the removable control device "C":

• Introduce the male plug "C" into the function “A” L3 device's test socket

• Introduce the male plug "C" into the function “B” L3 device's test socket If there is phase agreement:

• The lights on the L3 control device for A and B functions are on.

• The removable device "C"'s light is off.

If there is phase disagreement:

• The L3 control device's lights are dim.

• The removable device "C"'s light is on.

Repeat these steps for L1 and L2 phases. Note: To confirm that the removable phase agreement device is functioning correctly, attach its two plugs to two phases on the same cell: the light should come on. 11.6 Power on busbar and combined fuse protection

• Turn off the switch(es) on the incoming cell(s).

• Turn off the switch(es) on the outgoing cell(s).

• Confirm whether the voltage presence indicators L1, L2 and L3 of this final cell are on.

12. OPERATION 12.1. Switchgear

Cells are shipped with the switch in the "open" position and the earth switch "closed". Motorised features are not operational if the manual operating lever is fitted.

The mechanism is operated by a non-return lever, whose function is to stop the switch being opened immediately after it is closed.

Closed switch

Open earth switch Open switch

Open earth switch Open switch

Closed earth switch

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12.2. Opening earth switch (common to CI1 and CI2 operating mechanism types)

• This operation is only possible when the earth switch is closed

• Move the swing mechanism locking tab

• Insert the lever into the earth switch operation slot

• Open the earth switch by turning the lever anti-clockwise to the "open" position This will allow the cable front panel to lock and the open switch position to be released.

12.3. Closing earth switch (common to CI1 and CI2 operating mechanism types)

• This operation is only possible if the switch is in the open position

• Insert the lever into the earth switch operation slot

• Confirm that no voltage is running through the cables (check the voltage presence indicator)

• Close the earth switch, lifting the lever clockwise to its final position

This operation:

• Closes the earth switch

• Unlocks the cable access panel

• Locks the switch in the open position

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12.4. Switch closing (CI1 operating mechanism - Incoming / outgoing function)

• This operation is only possible when the earth switch is in the "open" position

• Insert the lever into the switch operation slot

• Move the lever clockwise to its final position - the switch will close suddenly.

• The Earth Switch operating mechanism is locked in the "open" position.

12.5. Switch opening (CI1 operating mechanism - Incoming / outgoing function)

• This operation is only possible when the Switch is in the closed position

• Insert the lever into the switch operation slot

• Move the lever anti-clockwise until it reaches the "open" position - the switch will open suddenly

• The earth switch operating mechanism is then unlocked

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12.6. Close switch and reset for opening (CI2 operating mechanism - cable protection function)

• This operation is only possible when the earth switch is in the open position

• Insert the lever into the switch operation slot

• Move clockwise to its final position

• When the switch closes, the lever remains in place

Please note this essential operation after closing the ISF:

• You must move the lever anti-clockwise to reset the spring.

• You can now remove the operating lever. The switch is now ready to be opened (moving it anti-clockwise).

12.7. Open switch (CI2 operating mechanism - cable protection function) The switch opening operation can be done:

• Manually (trigger button on operating mechanism)

• By an opening coil (optional)

• By fuses (mechanical fuse action)

Button for manual switch opening

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12.8 Circuit breaker spring (re)charging (CDV operating mechanism - Cable protection function) DIVAC G circuit-breakers are fitted with a standard closing spring manual (re)charge mechanism. The manual charging operation is made applying a pumping action with the charging lever. After about ten pumping movements, the (re)charging will be completed and signalized by the charging condition indicator and lever action stops to charge closing springs.

Attention: To disarm the closing spring, it is necessary to perform an operation cycle (closing plus opening). This operation should be performed only when strictly necessary. Automatic spring re(charge) Optionally, the circuit breaker can be fitted with a recharging motor, enabling the automatic closing spring recharge after each closing operation. This option is especially suitable for auto-reclosing sequences. If power failure occurs during automatic recharge, a manual recharge could be performed to complete the operation.

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12.9 Circuit breaker operation (CDV operating mechanism - Cable protection function) The circuit breaker closing/opening operation is obtained by pressing the closing/opening pushbutton.

If the circuit breaker is fitted with electric closing and opening coils, it is also possible to perform local or remote electric operations. When the unit is fitted with a self-powered protection relay (and the necessary current sensors) the circuit breaker can be tripped whenever a fault occurs. Optionally a closing pushbutton interlock (through lock) can be supplied. 12.10 Self-powered relay (Cable protection function – CDV mechanism) The cable protection function (with circuit breaker) can be fitted with a protection solution, which includes a self-powered overcurrent protection relay and a set of current sensors. The circuit breaker is tripped whenever a fault is detected by the self-powered protection relay.

See the supplied electric diagram and protection relay instruction manual for details.

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13. MAINTENANCE The Fluofix GC does not require maintenance, once all the active parts and the main circuit are inside the tank full of SF6. However, after prolonged service interruption or whenever you notice a service interruption, you are advised to take the following steps:

• Visual inspection for confirmation that the material is in good condition.

• Verification that the operating mechanisms and locks are functioning correctly.

• Confirmation that the cable connectors are correctly attached. 14. CABLE TESTING Procedure for testing cables:

• Open the Switch-disconnector

• Close the earth switch

• Remove the cable compartment access panel

• Open the earth switch

• Send voltage to the cable connector directly (the connector manufacturers will be able to provide accessories for cable testing)

• When tests are complete return to original state.

Optionally, Fluofix units can be equipped with sockets specifically for testing cables (see diagram). The sockets allow you to test cables without directly using cable connectors.

• Open the Switch-disconnector

• Close the earth switch

• Remove the earth busbars which short circuit the sockets

• Send voltage into the sockets to test the cables

• When the tests are completed, return to original state

Voltage

injection

Test

sockets

15. REPLACEMENT 15.1 Replacement of voltage presence indicator lights To replace the voltage presence indicator lights, proceed as shown in the images. Tools are not required.

After removing the voltage indicator, disconnect the connection.Reconnect the voltage indicator and replace it.If the unit has voltage present,

15.2 Fuse replacement To replace fuses follow the instructions in section 10.8 "Fuse fitting". Simultaneous replacement of all three fuses is recommended. 16. SPARE PARTS The following spare parts are recommended:

• Lights for the voltage indicator

• Fuses (if applicable)

• Opening coil (if applicable)

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15.1 Replacement of voltage presence indicator lights

replace the voltage presence indicator lights, proceed as shown in the images. Tools

After removing the voltage indicator, disconnect the connection. Reconnect the voltage indicator and replace it. If the unit has voltage present, the indicator will light up immediately.

Connection

To replace fuses follow the instructions in section 10.8 "Fuse fitting".

Simultaneous replacement of all three fuses is recommended.

following spare parts are recommended:

Lights for the voltage indicator

(if applicable)

FLUOFIX GC

replace the voltage presence indicator lights, proceed as shown in the images. Tools

After Sales Service

Medium and High Voltage Equipment

Porto Arroteia • Leça do Balio • Apartado 1018 4466-952 S.Mamede de Infesta • Portugal

Tel.: (+351) 22 956 23 00 Fax: (+351) 22 956 28 87

Website: www.efacec.com