Medium Voltage Distribution PIX DEWA - Schneider...

PIX DEWAMedium Voltage Distribution

www.schneider-electric.com

Installation CommissioningOperation MaintenanceInstructions

With Vacuum Switchgear

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Contents

1 Schneider Electric at your service �� 51.1 Your contacts .................................................................................... 52 With regards to this User Manual �� 62.1 Responsibilities ................................................................................ 62.2 Eco-design concept and revalorisation of the materials used ......... 62.3 Normal service conditions (in accordance with IEC 60694) ............ 6 Permissible ambient temperature .................................................... 6 Installation altitude ............................................................................ 6 Atmospheric pollution ....................................................................... 6 Permissible atmospheric humidity level ........................................... 62.4 Other technical notices to be consulted ........................................... 72.5 Tools and maintenance products (not supplied) required for the operations described in this notice ................................................... 72.6 Particular instructions for operations and interventions on energized equipment ......................................................................................... 72.7 Symbols & conventions .................................................................... 82.8 Tightening torque values for standard assemblies (nut + bolt) ........ 83 Presentation �� 93.1 Description ....................................................................................... 93.2 PIX unit Dimensions (excluding packing and without the rear arc deflector) .......................................................................................... 93.3 Designations of the moving parts ..................................................... 93.4 Presentation of the Functional Units .............................................. 104 Packaging - Handling - Storage �� 144.1 Transport - Delivery ........................................................................ 144.2 Functional Unit Packaging ............................................................. 144.3 Packaging and handling of the HVX moving part .......................... 144.4 The accessories pack .................................................................... 154.5 Reception/Acceptance ................................................................... 154.6 Handling of the Functional Unit and the moving part ..................... 154.7 Storage ........................................................................................... 164.8 Intervention levels .......................................................................... 174.9 Specific recommendations for storage durations of less than 6 months ............................................................................................ 174.10 Specific recommendations for storage durations of between 6 and 12 months ....................................................................................... 174.11 Specific recommendations for storage durations of between 12 and 24 months ....................................................................................... 175 Unpacking and installing the equipment �� 185.1 Type of Civil Engineering ............................................................... 185.2 Unpacking the Functional Units ..................................................... 185.3 Identification of the Functional Unit ................................................ 185.4 Handling the Functional Unit .......................................................... 195.5 Handling the moving part for placing it on the ground ................... 195.6 Installation on the ground ............................................................... 196 Installation �� 206.1 Installing Functional Units .............................................................. 206.2 Fitting the functional units .............................................................. 206.3 Fixing the Functional Unit to the ground. ........................................... 206.4 Opening the door of the Functional Unit ....................................... 216.5 Removing the straps on the moving part compartment ................. 216.6 Extracting the moving part from its compartment .......................... 226.7 Coupling together the functional units. ........................................... 226.8 Preparations for busbar connections ............................................. 236.9 Busbar mounting assembly ............................................................ 236.10 Connecting the busbars ................................................................. 24

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Contents (contd.)

6.11 Supplementary protection for main busbar .................................... 256.12 Connecting up the earthing circuit ................................................. 256.13 Cable runs - low voltage circuits .................................................... 256.14 Mounting of the internal arcing deflectors ...................................... 277 Operating accessories �� 287.1 Equipment handling table for the moving part ................................... 287.2 Operating accessories .................................................................... 298 Operating and handling instructions �� 318.1 Plugging-in operation for the moving part ..........................................318.2 Unplugging operation for the moving part .........................................318.3 Electro-magnetic locking in place of the moving part .................... 319 Operation of the HVX moving part �� 329.1 Before commissioning the circuit breaker ...................................... 329.2 Manual arming of the circuit breaker .............................................. 329.3 Closing and tripping the circuit breaker (door closed) ................... 3310 Operating the moving parts of Voltage Transformers �� 3410.1 Presentation of the withdrawable moving parts of Voltage Transformers [cable compartment removed] ................................. 3410.2 Extraction of the moving part ......................................................... 3411 Mechanical locking-out and locking operations �� 3711.1 Functional mechanical interlocks ................................................... 3711.2 Locking out of the earthing switch by padlock (not supplied) ........ 3711.3 Locking shutters fitted with padlocks (not supplied) ...................... 3811.4 Locking shutters opened with padlocks (not supplied) .................. 3811.5 Locking `plug in' shutters fitted with padlocks (not supplied) ......... 3912 Commissioning �� 4012.1 Reminder ........................................................................................ 4012.2 Inventory of tools and accessories on completion of the worksite 4012.3 Pre-commissioning information ..................................................... 4012.4 Principle pre-commissioning checks .............................................. 4012.5 Voltage presence testing (VPIS indicators) .................................... 4112.6 Energising the "Incoming" Functional Unit ..................................... 4112.7 Energising a second "Incoming", supplied power from the same source. ............................................................................................ 4212.8 Control of phase balance with a phase comparator (VPIS indicators) ............................................................................ 4213 Preliminary operations before maintenance �� 4313.1 Opening the door of the Functional Unit ........................................ 4313.2 Closing and locking the door .......................................................... 4313.3 Disconnection of the low voltage plug ............................................ 4413.4 Extraction of the functional unit's moving part ............................... 4513.5 Fitting the moving part into its compartment .................................. 4813.6 Connection of the low voltage plug ................................................ 5013.7 Earthing switch opening operation ................................................. 5013.8 Earthing switch closing operation ................................................... 5113.9 Locking the electro-magnetic earthing switch control in the "open" position. .......................................................................................... 5214 Maintenance �� 5314.1 Levels of maintenance ................................................................... 5314.2 Preventive maintenance of the moving parts ................................. 5314.3 Preventive maintenance of the functional units ............................. 5414.4 Systematic maintenance ................................................................ 5514.5 Lubricating and greasing points ..................................................... 5514.6 Corrective maintenance on the functional units ............................. 5614.7 Replacing a VPIS luminous indicator ............................................. 5614.8 Replacing the HV fuses .................................................................. 56

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Contents (contd.)

Characteristics of the EFEN - 2A fuses ............................................56 Replacement of fuses .......................................................................5714.9 Replacing a voltage transformer .................................................... 5814.10 Replacement of a current transformer (Coil-type) ........................ 59 Dismantling the current transformer ..................................................59 Refitting the current transformer .......................................................6214.11 Replacing the cross braces. .......................................................... 6214.12 Opening the door with the moving parts locked ........................... 6814.13 Anomalies and remedies ............................................................... 6915 Spare parts �� 7015.1 The spare part ................................................................................ 7015.2 Identification of the equipment ....................................................... 7015.3 Storage conditions .......................................................................... 7015.4 Maintenance Consumables ............................................................ 7016 At the end of the equipment's operational life �� 7116.1 Valorisation of the equipment ......................................................... 7116.2 Safety instructions .......................................................................... 7116.3 Dismantling of the equipment ......................................................... 71

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1 Schneider Electric at your service

Electrical equipment necessitates a particular attention and scrupulousrespect of the recommendations explained in this user manual. Operations and maintenance may only be carried out by qualified person nel who have received suitable authorisation for the operations and manoeuvres they are responsible for performing. Schneider Electric's After- Sales Service, which is the nearest to you, is at your disposal for any type of aid or advice.Reminder : All locking-out opera tions must be performed according to the "General Safety Instructions booklet for Electrical Applications" and the particular rules for the net work concerned.

1�1 Your contactsFrance:Schneider Electric Appareillage Moyenne Tension Bd de la Résistance BP 84019 F-71040 Mâcon Cedex 9Tel. : 33 (0) 3 85 29 35 00Fax : 33 (0) 3 85 29 36 30 Freefone N°: 0 800 40 27 62 24hrs/day 7days/week

Germany:Schneider Electric Sachsenwerk Königsbrücker Strasse 124, D-01099 DresdenTel. : + 49 (0) 351 8200Fax : + 49 (0) 351 820 2342

Belgium :Schneider Electric Belgium S.A. Route Zénobe Gramme, 33 Zoning des Plénesses B-4821 DisonTel. : + 32 (0) 87 320 350Fax : + 32 (0) 87 320 405

United Kingdom: Schneider Electric Frederick Road, Salford, M6 6QH, EnglandTel. : + 44 (0) 161 745 9090Fax : + 44 (0) 161 745 4482

Switzerland:Schneider Electric Carl-Sprecher-Strasse 3 CH-5036 OberentfeldenTel. : + 41 (0) 62 737 33 33Fax : + 41 (0) 62 737 31 80

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2 With regards to this User Manual

© - Schneider Electric-2011. Schneider Electric, the Schneider Electric logo and their figurative forms are Schneider Electric registered trade marks.The other brand names mentioned within this document, whether they be copyright or not, belong to their respective holders.

2�1 ResponsibilitiesOur devices are quality controlled and tested at the factory in accor dance with the standards and the regulations currently in force.Apparatus efficiency and apparatus life depend on the compliance with the installation, commissioning and operation instructions described in this user manual. Non respect of these instructions is likely to invali date any guarantee.Local requirements, especially regarding safety, which are in accordance with the indications given in this document, must be observed.Schneider Electric declines any responsibility for the consequences:

■ due to the non respect of the recommendations in this manual which make reference to the inter national regulations in force.

■ due to the non respect of the ins tructions by the suppliers of cables and connection accessories during installation and fitting operations,

■ of any possible aggressive climatic conditions (humidity, pollution,etc.) acting in the immediate envi ronment of the materials that are neither suitably adapted nor protec ted for these effects.This notice does not detail the loc kout procedures that must be applied. The interventions described are carried out on de-energized equipment (in the course of being installed) or locked out (non operational).

2�2 Eco-design concept and revalorisation of the materials usedThe design and manufacture of our packaging are both in conformity with the French government decree N° 98-638 of 20 July 1998, concerning the account that is taken of environmental requirements.

2�3 Normal service conditions (in accordance with IEC 60694)Permissible ambient temperatureThe ambient air temperature should be comprised between - 5°C and + 40° C.The mean measured value for a 24 hour period must not exceed 35°C.Installation altitudeHV equipment are defined in accor dance with European Standards and can be used up to an altitude of 1,000 m.Beyond this, account must be taken of the decrease in dielectric withstand.For these specific cases, contact the Schneider Electric Sales Department

Atmospheric pollutionThe ambient air must not contain any dust particles, fumes or smoke,corrosive or flammable gases, vapours or salts.Permissible atmospheric humidity levelThe average atmospheric relative humidity level measured over a 24-hour period must not exceed 95%.The average water vapour pressure over a period of 24 hours must notexceed 22 mbar.The average atmospheric relative humidity value measured over a period of one month must not exceed 90 %..The average water vapour pressure over a period of one month must not exceed 18 mbar.Condensation may appear in case of any sharp variation in temperature, due to excessive ventilation, a high atmospheric humidity level or the presence of hot air. This condensation can be avoided by an appropriate lay-out of the room or of the building (suitably adapted ventilation, air driers, heating etc.).

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Whenever the humidity level is higher than 75 %, we recommend that you take appropriate corrective measures. For any assistance or advice, contact the Schneider Electric After- Sales department (See § 1.1).

2�4 Other technical notices to be consulted ■ AMTNoT023 General Instructions on Lubrication

■ N° 531311 HVX type Circuit Breaker

Operating Instructions (manual plugging-in)

■ N° 531321 HVX type Circuit Breaker

Operating Instructions (motorised plugging-in)

■ N° 531361 UTX & MTX Moving parts

Operating Manual

■ N° 531471 HVX type Circuit Breaker 3150A

Operating Instructions for plugging-in

■ AMTNoT083 Special Moving Parts

Injection & Traps

2�5 Tools and maintenance products (not supplied) required for the operations described in this notice

■ Cutter ■ Crowbar ■ Open-ended spanners. Sizes: 10, 13, 16 & 18 mm ■ Ratchet handle with socket. Sizes: 10, 13, 16 & 18 mm ■ Allen keys. Sizes: 2, 6, 8 & 10 mm ■ Torque wrench with sockets. Sizes: 13, 16 & 18 mm and

hexagonal socket - size 10 mm ■ Flat headed screwdriver ■ Torx 25 screwdriver ■ Cutting pliers ■ 4 slings (capacity 1,000kg)

Product code ■ Clean, dry cloth - ■ Solvent (dielectric resistance > 30kV), excluding

chlorine based products-

■ Mechanical greases: Mobilplex 47, Mobilux EP3 from Mobil or Stabilube T6 from Sophos

■ Electrolube 2GX electrical contact grease from Comindus

2�6 Particular instructions for operations and interventions on energized equipmentWhen commissioning and operating the equipment under normal conditions, the General safety instructions for electrical applications must be respected, (protective gloves, insulating stool, etc.), in addition to standard operating instructions.All manipulations must be completed once started.The durations (for completing the operations mentioned) given in themaintenance tables are purely an indication and depend on on-siteconditions.

2 With regards to this User Manual (contd.)

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2 With regards to this User Manual (contd.)

2�7 Symbols & conventionsCode for a product recommended and marketed by Schneider ElectricTightening torque valueExample: 1.6 daN�m

Mark corresponding to a key

CAUTION! Remain vigilant!Precautions to be taken in order to avoid accidents or injuryFORBIDDEN! Do not do it!Compliance with this indication is compulsory, non compliance with this stipulation may damage the equipment.INFORMATION - ADVICEYour attention is drawn to a specific point or operation.

2�8 Tightening torque values for standard assemblies (nut + bolt)Threaded fasteners without grease: assembly with ungreased washers.Threaded fasteners with grease: mounted with the washer greased.Use grease referenced:

Dimensions

Zinc plated steel fasteners without grease (daN�m)

Stainless steel fasteners withgrease (daN�m)

class 6�8 class 8�8 A2-70M 6 0.7 0.9 0.7M 8 1.6 2.1 1.6M 10 3.2 4.3 3.2M 12 5 6.6 5M 14 8.7 11.6 8.7M 16 13.4 17.9 13.4M 20 26.2 35 26.2

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3�1 DescriptionThe PIX metal-clad switchboard was designed so that all operating components are accessible from the front panel.The Functional Unit is divided into 4 compartments: Cables; Moving Parts; Busbar and Low Voltage Switchboard. They are separated by metal partitions.The cable, moving parts and bus bar compartments are all equipped with gas exhaust valves in case of any internal arcing.The phases are colour coded, and marked with the first letter of eachcolour: Red - Yellow - Blue.The main busbar is completely insulated.

3�2 PIX unit Dimensions (excluding packing and without the rear arc deflector)Width of the Functional Units [mm] 250 650 1000Depth [mm] 1405 1405 - 1805 1405 - 1932 - 2005Height [mm] 2750 2750 2750

3�3 Designations of the moving partsCircuit breaker HVXBus-trunk UTXVoltage transformers on the busbar MTXMoving part for tests -Moving part - trap -

3 Presentation

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3�4 Presentation of the Functional UnitsKey1 Internal arcing valve for the moving part compartment2 Internal arcing valve for the busbar compartment3 Busbar4 Internal arcing valve for the cable compartment5 Internal arcing valve for the cable compartment6 Access panel - Command & Control box7 Rear arc deflector8 Moving part HVX circuit breaker9 Gas exhaust duct10 Earthing switch11 Current transformers - Cores12 Cable tightening strap13 High Voltage Cables14 Access door to the moving part compartment15 Cable connection lugs16 Rear access panel to the cable compartment17 Voltage presence indicator box18 Capacitive divider insulators19 Fixed sling points20 Front access panel to the cable compartment21 Rear access panel to the busbars22 Earthing circuit connector passage23 Insulator support24 Moving Part Voltage Transformer

3 Presentation (contd.)

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4 Packaging - Handling - Storage

4�1 Transport - DeliveryThe conditions and methods of transport are defined with the customer, at the time of processing the contract. The packaging depends on the transport conditions, storage and thenature of the product transported.Functional units of 650 mm in width are delivered in a vertical position with the moving parts locked into their ̀ withdrawn/test' position within the compartment.The wiring sheaths are supplied in separate packaging.

Functional Units with a width of 1,000 mm and their moving parts are delivered in a vertical position, in separate packaging.

4�2 Functional Unit Packaging ■ The packaging of a Functional Unit for road and rail transport:

□ fixed onto wooden stringers, □ enveloped in plastic stretch wrapping, □ protection of the front facing panel by expanded polystyrene.

■ The packaging of a Functional Unit for air and maritime transport: □ under a heat-sealed cover with bags of desiccant, □ enclosed in a wooden case.

■ Status of the equipment on delivery: □ Earthing switch closed, □ circuit breaker strapped and "tripped", and in its "unplugged/test"

position, □ Mechanical control "released".

4�3 Packaging and handling of the HVX moving partRefer to the circuit breaker's technical manual (see § 2.4).

In order to lift or deposit the moving part on the handling table, lifting equipment will be required (not supplied by Schneider Electric).

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4 Packaging - Handling - Storage (contd.)

4�4 The accessories packContains all elements required for the assembly of Functional Units,including busbar and cable connections.

4�5 Reception/Acceptance ■ Ensure that the material delivered is complete (list enclosed with the

accessories). ■ Carry out a visual inspection of the Functional Units and moving parts.

In the event of an anomaly, inform and make the necessary reserves with the transporter.

The Functional Unit must remain vertical on its base, within its original packaging, during any eventual storage period and until it arrives at the location of its installation.

4�6 Handling of the Functional Unit and the moving part

■ Road and Rail packaging (900 kg max.): using a fork lift truck. ■ It is imperative that the forks of the truck are fully engaged across the

entire width of the Functional Unit

■ Air and maritime transport packaging: Depending on the weight indicated on the crate.

■ It is imperative that the forks of the truck are fully engaged throughout the entire width of the crate.

■ Pass 2 slings, each one supporting 1,000 kg under the crate from one side of the crossbeams to the other.

■ The weight of each crate is indicated on its side.min. 1m

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■ Never tip the crates over.

■ Never handle the circuit breaker by its connecting plates.

■ Never lift up a circuit breaker by lifting it by its chassis or trolley.

In order to remove or fit the moving part on the handling table, a lifting device is required (not supplied by Schneider Electric).

Never put the circuit breaker directly on the ground. Put systematically 2 stringers (30x30mm) under the chassis.

4�7 StorageThe site chosen for storage must be capable of protecting the materialagainst possible damage due to:

■ Water ■ Water vapour ■ Saline atmosphere ■ All types of pollution ■ Micro-organisms.

Contact Schneider Electric for any derogations to these criteria

Ensure that the material is suitably packaged for the requirements of the planned storage period.Avoid leaving the material where it is likely to be subjected to large, sudden temperature changes.Ensure that there are no corrosive vapours present, for example sulphur dioxide (SO2).


- 25 Co

+50 Co

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4�8 Intervention levelsDescription LevelsOperations carried out by the Customer 1Operations requiring specific training, carried out by an approved third party 2

Work to be carried out exclusively by Schneider Electric 3

4.9 Specific recommendations for storage durations of less than 6 monthsPackaged under a plastic covering 1 2 3Periodically carry out an inspection of the packaging ■ ■ ■When unpacking,:

■ check the mechanical functions by carrying out several operations

■ ■ ■

4.10 Specific recommendations for storage durations of between 6 and 12 monthsProtected by a heat-welded sheet, with bags of desiccant present 1 2 3

Periodically carry out an inspection of the packaging (check that, among other things, there are no holes) ■ ■ ■

When unpacking,: ■ check the mechanical functions by carrying out several

operations- ■ ■

■ Test the min. threshold level (AC, 85% rated Un; DC, 70% of Un ) for the electrical operation of the coils - ■ ■

4.11 Specific recommendations for storage durations of between 12 and 24 monthsProtected by a heat-welded sheet, with a method of replacing the bags of desiccant 1 2 3

Periodically carry out an inspection of the packaging (check that, among other things, there are no holes) ■ ■ ■

Periodically replace the bags of desiccant ■ ■ ■When unpacking:

■ carry out light maintenance work - - ■

■ check the mechanical operation of the switchgear by carrying out several operations - - ■

■ Test the min. threshold level (AC, 85% rated Un; DC, 70% of Un ) for the electrical operation of the coils - - ■


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5�1 Type of Civil EngineeringThe installation of a switchboard requires a sufficiently flat and even concrete structure. The dressing of a top coat of cement using a ruleshould eliminate any surface irregularities greater than 2 mm per metre. A layout on iron supports for levelling off is ideal as they will also serve as a guide for the adjustment of the cement top coat.The overall flatness of the support surface should not show up any deflection greater than 6 mm throughout the length of the switch board.

5�2 Unpacking the Functional UnitsUnpacking the Functional Units is only to be carried out on the installation site itself.Tools required:

■ Cutter for road and rail transport packaging ■ Crowbar for air and sea transport packaging

For all handling operations it is advisable that you use suitable protectivegloves.To remove the stringers, remove the foam mousse from the panels then dismantle the cable compartment panel.Dispose of the packaging waste (wood, polystyrene) via the appropriate recycling channels.Before handling and ̀ end of row' functional unit, remove its far end side panel.

5.3 Identification of the Functional UnitCheck the technical characteristics shown on the rating plate, in comparison with the initial order.Information taken from this plate is needed for all contact with Schneider Electric.Other identification may be given, in accordance with the particularspecifications on the contracts.

5 Unpacking and installing the equipment

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5�4 Handling the Functional Unit ■ Four fixed slinging points are provided for on the roof of each functional

unit.

■ Lift the Functional Unit by 4 slings each one capable of supporting 1,000 kg.. ■ Respect the minimum carrying height as shown on the above diagram.

■ Slide the Functional Unit along, using three cylindrical rollers of 30 mm min. diameter.

■ Thus moving it to its final installation place.

5�5 Handling the moving part for placing it on the ground

Never put the circuit breaker directly on the ground. Put systematically 2 stringers (30x30mm) under the chassis.

■ Use a protected steel cable, with a diameter of 12 to 15 mm, or a strap.The lifting system must dimensioned inaccordance with the weight ofthe circuit breaker.

■ On the ground, prepare 2 stringers that will be aligned with the outer edges of the truck.

5�6 Installation on the groundThe limits of the civil engineering layout depends on the type and quantity of materials to be installed.Respect the layout and distances given in the single line drawing for the sub-station switchboard.Position the Functional Units whilst respecting minimum clearance distances in front of, behind and to each side of the switchboard.

5 Unpacking and installing the equipment (contd.)

stringers(min. section 30x30mm)

HVX

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6�1 Installing Functional UnitsStart the installation work from nearest the busbar connector tunnel.Fit the functional units for both busbars.Assemble and fit the connector tunnel before continuing with the installation of the functional units.Organise the arrival of the Functional Units in accordance with the single-line diagram.Respect the minimum spacing distances.

6�2 Fitting the functional unitsFor installation operations, use suitably adapted protective gloves.

Check the perpendicularity to the ground of each unit.Align the front facing panels.Continue to install the Functional units whilst repeating the same checks each time.

6�3 Fixing the Functional Unit to the ground�

6 Installation

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■ Unscrew the 2 fixing screws (8 mm Allen key) from the cable compartment panel.

■ Lift up and remove the panel. ■ Mark the panel in relation to the appropriate Functional Unit.

■ Fix the functional unit in place using the 2 fixing points to the front of the unit (HM10x30 bolts and plugs not supplied)

6�4 Opening the door of the Functional UnitRecover the key and the operating handle from the accessories pack.

■ Insert the key into its keyhole. ■ Turn it in an anti-clockwise direction to unlock the door.

■ Insert the handle into its hole. ■ Turn it upwards: the door lifts up.

■ Open the door: The handle can be removed but the key remains captive.

6�5 Removing the straps on the moving part compartment

For Functional Units of 650 mm in width, the circuit breaker is supplied strapped into its compartment.

6 Installation (contd.)

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■ Door open: the strapping points are located on the lower left and right hand sides

■ Unscrew the 2 screws (1) (Torx 25 screwdriver). ■ Unscrew and remove the bolt H M8x25 (2). ■ Remove the 2 strapping brackets (3). ■ Screw in the 2 screws again (1).

■ Unscrew the 2 screws (4) (Torx 25 screwdriver). ■ Unscrew and remove the bolt H M8x25 (5). ■ Remove the 2 strapping brackets (6). ■ Screw in the 2 screws again (4).

6�6 Extracting the moving part from its compartment

To extract the moving part from its compartment, apply instructions § 13.3 & 13.4.

6�7 Coupling together the functional units�Interconnect the Functional Units using the 9 fixing points (H M8x20 bolts).To the rear and top of the units, connect them together using the deflector support pads (4 x HM8x20 screws).


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6�8 Preparations for busbar connections ■ The busbar can be reached through the rear of the functional unit. ■ Remove the external panel (12 or 14 HM8x25 screws).

■ Disassemble and remove the internal panel held in place by 11 captive bolts (13 mm spanner).

■ The busbar is now accessible.

6�9 Busbar mounting assemblyThis mounting is on the left hand side of each functional unit, with the exception of those installed at the extremities of the switchboard.Before assembly, fit each functional unit with the five caged bolts supplied with the accessories.

■ From one site, fit the seal-off bushing to the insulating plate.

■ From the other side, slide the O-ring into place against the plate.


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■ Slide the membrane inside the seal-off bushing.

■ Membrane fitted. Attached to the seal-off bushing.

■ Fix the busbar mounting and fittings to the functional unit.(5 H M8x20 bolts).

■ View inside the mounting.

6�10 Connecting the busbars ■ Before assembly, lightly brush each busbar's contact zone with Vaseline.


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■ Assembly and tightening of the 4 screws (10 mm Allen key).

See Notice 641376/000 for busbar assembly.

6�11 Supplementary protection for main busbarPosition and tighten insulating caps on each connector node in accordance with Notice 641375/000.

6�12 Connecting up the earthing circuit ■ To connect two Functional Units together:

1 Unscrew the bolt H M8x35 (13 mm spanner) retaining the busbar link,2 Slide this link through the Functional Units flange.

■ In the adjacent functional unit: Unscrew the fixing screw.3 Adjust the busbar link with the aid of slotted holes.4 Bolt the busbar link on the 2 sides and tighten to torque indicated.

■ Connect the earthing circuit linking all of the Functional Units to the room's earthing bar (Threaded fasteners H M12 and earthing cables (Min. 30mm2 not supplied).

6�13 Cable runs - low voltage circuits ■ Lower front panel removed to gain access to the wiring ducts. ■ Left side: no lower duct, reserved for Schneider Electric low voltage

cables.


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■ Right side: reserved for passage of cables by the customer. ■ Protection by 2 removable duct.

Upper one is fixed by 1 point.

■ An opening is practiced in the floor to allow the exit of low voltage cables.

■ Lower removable duct is fixed by 3 points.

■ Upper part of that duct is reserved for installation of cable glands.

■ A removable plate, fixed by 4 points, allow to access in lower part of cable glands.


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6�14 Mounting of the internal arcing deflectorsThe arcing deflectors are supplied dismantled. It is imperative that you follow the explanations supplied in order to respect the direction for mounting on-site.

For all deflector installation operations you must use suitably adapted protective gloves.

As the rear mounting brackets are already fixed, fit the deflectors with reference to the widths of the individual functional units

■ Fitting near the busbar.

■ Fitting the deflector.

■ Rear view of deflector fitting.


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7�1 Equipment handling table for the moving partKey 1 Table handling handle2 Rod for unlocking the moving part on the table3 Handle for locking/unlocking the table to the Functional Unit4 Handle for unlocking the moving part from its compartment5 Area for storing the accessories (operating levers, key, handle)6 Blocking/unblocking the wheels

■ The table is locked or unlocked from the functional unit by lowering or raising the handle (3).

■ The moving part is unlocked from the table by pushing the rod (2).

■ The moving part is unlocked from its compartment by pushing the black handle (4).

7 Operating accessories

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7�2 Operating accessories ■ Door opening and closing handle.

■ Standard* locking and unlocking key for the door of the "moving part" compartment.

■ Crank handle for arming the control mechanism's springs.

■ Rod for closing and tripping the circuit breaker.

7 Operating accessories (contd.)

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■ Standard* operating lever for the earthing switch.

Disengageable plugging-in and withdrawing crank handle for the moving parts.

Models: End-piece

With clamps:

Avec Tulips

* Other keys or levers may be delivered depending on the contract.

Accessories delivered with the equipment and only those that are approved for use on Schneider Electric products

7 Operating accessories (contd.)

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Opening the door is only authorised for maintenance operations (See chapter 13).

Respect the locking out procedures for interventions with equipment that is energised.

■ Operating functions must be carried out with the door of the functional unit closed.

8�1 Plugging-in operation for the moving part ■ Pass the crank handle through the hole in the door and introduce it into

the moving part's drive shaft.

■ Turn it in the direction of the arrow: the crank handle slowly penetrates into the compartment.

■ The CLACK of the disengagement of the crank handle indicates that the moving part is "racked-in".

■ Remove the crank handle.

8�2 Unplugging operation for the moving part ■ Pass the crank handle through the hole in the door and introduce it into

the moving part's drive shaft.

■ Turn it in the direction of the arrow: The handle slowly leaves the compartment.

■ The CLACK of the disengagement of the crank handle indicates that the moving part is "unplugged".

■ Remove the crank handle.

8�3 Electro-magnetic locking in place of the moving part

Certain functional units are fitted with a coil-operated lock-out system.Never attempt to force the handle.

8 Operating and handling instructions

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Key1 Handling handles2 Push button for tripping3 Push button for closing4 Technical data rating plate5 Operations counter6 Indicator light for the state of the circuit breaker (closed or tripped)7 Indicator light for the state of the springs (primed or released)8 Location for the crank handle to arm the springs9 Location for the plugging-in crank handle10 Low voltage plugging-in plug11 Instructions label for commissioning the circuit breaker12 Technical data rating plate13 Circuit breaker position indicator light

9�1 Before commissioning the circuit breaker ■ Door open: a triangular label details the instructions to be followed.

■ Unscrew the 4 fixing screws. ■ Remove the protective cover from the control mechanism.

■ Following the instructions on the yellow plate, remove the red blocking lug.

9�2 Manual arming of the circuit breakerOperation that can be carried out with door open or closed, but withcircuit breaker in the position "withdrawn/test".

9 Operation of the HVX moving part

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■ Insert the crank handle into its hole. ■ Turn it in the direction of the arrow until the mechanism gives a loud

"CLACK" sound.

■ The spring is "primed": do not apply any more effort on the lever. ■ Remove the arming lever.

9�3 Closing and tripping the circuit breaker (door closed)

■ ClosingFit the rod into the right-hand opening, through the door, and push it home.

■ The circuit breaker closes.

■ The mimic diagram through the view port confirms the "closed" position..

■ TrippingFit the rod into the left-hand opening, through the door, and push it home.

■ The circuit breaker trips

■ The mimic diagram through the view port confirms the "tripped" position.

9 Operation of the HVX moving part (contd.)

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10�1 Presentation of the withdrawable moving parts of Voltage Transformers (cable compartment removed)Key1 Rod for unlocking the fuses2 Handle for disconnecting the fuses3 Handling handle4 Interlock for the moving part5 Withdrawable Low Voltage Connector6 Instruction panel7 Interlock - fuses disconnected8 Interlock - fuses connected

10�2 Extraction of the moving part ■ Unscrew the 2 fixing screws (8 mm Allen key) from the compartment

panel.


■ Insert the key and unlock the fuse drawer.

10 Operating the moving parts of Voltage Transformers

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■ Disconnect the fuses.

■ Lock the drawer in its ̀ disconnected' position.

■ With the same key, unlock the moving part trolley.

■ Unscrew the four moving part fixing bolts from the casing. ■ Disconnect the LV socket.

10 Operating the moving parts of Voltage Transformers (contd.)

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■ Recover the removable access ramp supplied with the switchboard's packing list.

■ Hook up this ramp to the edge of the functional unit.

■ The ramp should be locked against the functional unit.

■ Using the handle, pull the moving part slowly along the access ramp in a straight line.

The trolley is heavy because it is equipped with the three voltage transformers.

■ The moving part rolling along the ramp.

10 Operating the moving parts of Voltage Transformers (contd.)

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11�1 Functional mechanical interlocksPIX Functional Units are equipped with mechanical interlocks, called "functional", intended to avoid any kind of operating error.

11�2 Locking out of the earthing switch by padlock (not supplied)The passage holes are designed for padlock shackles of Æ 8 mm.

The fitting of several padlocks at a single point requires the use of an accessory that is not supplied.

■ Locking the earthing switch in either the open or closed position.

11 Mechanical locking-out and locking operations

Interlocking Function Functioning ■ Between the plugging-in of the

moving part and the installation of the low voltage socket.

■ The plugging-in of the moving part is impossible if the low voltage socket is not connected up.

■ The shutter for access to the plug ging-in control is locked.

■ Between the plugging-in of the moving part and the earthing switch "closed".

■ Plugging-in of the moving part is impossible if the earthing switch is closed.

■ The plugging-in crank handle disengages.

■ Between the closure of the ear thing switch and the position of the moving part.

■ Closure of the moving part is impossible as soon as the moving part is being plugged-in or is "plug ged-in".

■ Operating the control lever for the earthing switch is impossible:DO NOT FORCE IT !

■ Between the plugging-in and the closed state of the moving part.

■ Plugging-in of the moving part is impossible if the latter is closed.

■ The shutter for access to the plug ging-in control is locked.

■ Between the closing of the moving part and plugging-in.

■ Closing of the moving part is impossible outside of the "Plugged-in" or "Test" positions.

■ Electrical and manual command telecontrols of the moving part are impossible.

■ Between the closing of the moving part and plugging-in.

■ Closing of the moving part is impossible outside of the "Plugged-in" or "Test" positions.

■ Electrical and manual command telecontrols of the moving part are impossible.

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11.3 Locking shutters fitted with padlocks (not supplied)

■ With the CB withdrawn the shutters can be padlocked.

■ Locking out the blanking shutters (stopping lifting operations) - same principal for left and right hand sides.

11�4 Locking shutters opened with padlocks (not supplied)

The lock-out instructions must be followed prior to undertaking this intervention.

With the shutters lifted, apply the Verification of Voltage and Earthing tests required.

■ On the right hand side, lift the drive rod from the busbar shutter.

■ This shutter can be padlocked in its open position.

11 Mechanical locking-out and locking operations (contd.)

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■ Proceed in the same manner with the left hand side to padlock the Circuit Shutter in its open position.

11.5 Locking ‘plug in’ shutters fitted with padlocks (not supplied)

■ Locking out ̀ plug-in' extracted circuit breaker.

■ Locking out ‘plug-in’ circuit breaker fitted.

■ ‘Plug-in’ not locked out.

11 Mechanical locking-out and locking operations (contd.)

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12�1 ReminderPrior to dispatch, PIX Functional Units are mechanically and electrically tested.If the material is being stored in a damp location, it is recommended that the room be heated and the heating elements be energised for a period of 24 hours prior to installation.Also check the leaktightness in the room, the cable troughs, ventilation, etc.

12�2 Inventory of tools and accessories on completion of the worksiteRecover, verify and tidy away all assembly tools and objects not required in the switchboard.Return the Functional Unit's and Circuit Breakers' operating accessories to their respective storage positions.Attach the PIX technical notice in a visible location within the room.

12�3 Pre-commissioning informationRespect the General Safety Instructions booklet for Electrical Applications and the particular regulations for the network concerned with regard to locking-out procedures.Record the serial numbers and identifying marks on equipment andswitchgear while they are accessible.Tests and inspections have already been carried out in the factory.Refer to the drawings and diagrams supplied with the equipment. Theydescribe the functionalities employed to carry out the level of operation required.

12�4 Principle pre-commissioning checksVisual inspection Date Remarks Signature

■ Ensure there are no foreign bodies inside the switchboard

■ Check the external appearance (no signs of blows, scratches on the paintwork) -->carry out touch-up repairs if needed.

■ Check the conformity with the Protection Index (leaktightness ofthe Functional Units, various blanking panels, etc.)

"Mechanical" checks Date Remarks Signature ■ Operating and interlocking tests on

the access doors and removable panels.

■ Key-locked system tests. ■ Inspection of mechanical tightening

torques, (electrical jointing, power and earthing circuits, etc.).Operations carried out on the moving parts:

■ Plugging-in and withdrawing, ■ Connection of the LV socket, ■ Arming, closing and tripping.

12 Commissioning

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Inspections and tests Date Remarks SignatureDielectric testing

■ Whilst taking all necessary precautions, carry out a dielectric test on the HV equipment and LV cabling.NB: These tests must be carried out prior to electrical testing.Electrical tests

■ Check the continuity of the earthing circuit.

■ Check the connections on the LV links.

■ Test the correct functioning of the LV switchgear.

■ Record the relay parameters.

State of the switchgear Date Remarks Signature ■ Examine each moving part, in

particular the plug pin contacts ■ Ensure that all the circuit breakers

are open and in the isolating position the earthing switches are open and the access panels to the cables and to the busbars are in place.

■ Ensure that the voltage transformer fuse indicator covers have been removed (comply with the instructions given by the fuse suppliers).

12�5 Voltage presence testing (VPIS indicators)The indication of "voltage presence" is ensured in conformity with the provisions of IEC61958 within the range of service voltage defined on the label (3).

To each of the 3 phases R, Y & B (1) there is a corresponding flashing indicator (2).

A connection point (4), for each phase, is accessible on the front face of the luminous indicator in order to connect the phase comparator.

The indication of a VPIS, by itself, is insufficient to ensure that the system is de-energized: if the operating rules demand it, then the appropriate voltage detectors must be used to that effect, in compliance with IEC61243-5.

12�6 Energising the "Incoming" Functional UnitEnergize the cables.In the case of a VPIS (IEC61958) type voltage presence , check that the luminous indicators are flashing.Energise the busbar. To do this, plug-in and close the circuit breaker (See § 8.1 & 9.3).

12 Commissioning (contd.)

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12�7 Energising a second "Incoming", supplied power from the same source�Energize the cables.Check for the presence of voltage (See § 12.6).Check the phase balance (See § 12.8) prior to commissioning.

12�8 Control of phase balance with a phase comparator (VPIS indicators)

■ Connect the 2 phase comparator cables (optional) on to 2 phases of the same Functional Unit.The light should light up: the comparator is now working.

■ Phases balanced: Light out ■ Phases out of sequence: Light on ■ Ensure the phase balance using a phase comparator checked If the

phases are out of sequence, inspect the cable connections.

12 Commissioning (contd.)

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13�1 Opening the door of the Functional Unit

Opening the door is only authorised for the maintenance operations mentioned in chapter 14.

The moving part must be in the "withdrawn" position.

■ Insert the key into its keyhole. ■ Turn it in an anti-clockwise direction to unlock the door.

■ Insert the handle into its hole. ■ Turn it upwards: the door lifts up.

■ Open the door: The handle can be removed but the key remains captive.

13�2 Closing and locking the door ■ Close the door.

13 Preliminary operations before maintenance

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■ Turn the handle downwards: the door descends and immobilises itself. ■ Take the handle out.

■ Turn the key in a clockwise direction: the door is locked. ■ The key can only be removed when the door is closed.

13�3 Disconnection of the low voltage plugDisconnect the low voltage auxiliaries before disconnecting the moving part's plug.

■ Door open: moving part in the position "withdrawn/test".

■ Pull horizontally on the low voltage plug unlocking lever.

13 Preliminary operations before maintenance (contd.)

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■ Disconnect the plug and store it in its housing, just above the moving part.

13�4 Extraction of the functional unit's moving part

■ Bring the table to rest against the functional unit, with handle at horizontal.

■ Lower the handle to the vertical position: the table locks on to the functional unit.

■ Block the table's 4 wheels.


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■ Push the moving part's unlocking handle as far as it will go.

■ Pull the moving part on to the table.

■ Bring the mobile part right to its end stop: it automatically locks itself on to the table.

■ Unblock the table's 4 wheels.


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■ Raise the handle to the horizontal position.

■ The table is unlocked from the functional unit.

■ Pull the table out.

■ Immediately lower the handle to the vertical position. Displacing the table is now possible.

For lifting and handling the circuit breaker, refer to the technical manual (See § 2.4).


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13�5 Fitting the moving part into its compartment

■ Approach the table. ■ Raise the handle to the horizontal position. ■ Push the table against the functional unit.

■ Lower the handle to the vertical position: the table locks on to the functional unit.

■ Block the table's 4 wheels.

■ Push in the unlocking rod: the moving part is freed.


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■ Maintain the rod in this position and push the moving part forward.

■ Push the moving part all the way home. The "CLICK" from the plugging-in ramp confirms its correct position.

■ Unblock the table's 4 wheels.

■ Lift the handle to the horizontal position to unlock the Functional Unit's table.


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■ Pull the table out. ■ Immediately lower the handle to the vertical position.

13�6 Connection of the low voltage plugEnsure that the low voltage auxiliaries have been cut off before connecting the low voltage plug.

■ Pull out the low voltage plug from its housing.

■ Plug it in to the moving part's socket and lock it.

13�7 Earthing switch opening operationSee information at § 13.9.

■ The hole for the earthing switch's operating lever is still blanked off.


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■ Moving part "withdrawn":it is possible to remove the blanking off piece by raising the pull control device.

■ Maintain the pull control device raised and fit the earthing switch lever in its lower position

■ Pull the lever towards the top.

■ Lever at the top: the earthing switch is now in the open position. ■ Inspect the position of the earthing switch's indicator.

13�8 Earthing switch closing operationBefore closing an earthing switch, ensure there is an absence of voltage across the circuit concerned.

■ Maintain the pull control device raised and fit the earthing switch lever in its higher position


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■ Pull the lever down towards the bottom.

■ Lever at the bottom: the earthing switch is closed. ■ Inspect the position of the earthing switch's indicator.

13�9 Locking the electro-magnetic earthing switch control in the "open" position�

The ̀ Earthing Switch Bars' and 'Coupling' functional units are controlled by a coil-powered lockout system.NEVER ATTEMPT TO FORCE the earthing switch handle closed.


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14�1 Levels of maintenanceDescription LevelsOperations recommended in the instructions manual "installation - operation - maintenance", carried out by suitably qualified personnel having received training allowing them to intervene whilst respecting the safety rules.

1

Complex operations, requiring specific expertise and the implementation of support equipment in accordance with Schneider Electric's procedures. These are carried out by Schneider Electric or by a specialised technician, trained by Schneider Electric in the implementation of procedures, and who is equipped with specific equipment.

2

All preventive and corrective maintenance, all renovation and reconstruction work is carried out by Schneider Electric. 3

14�2 Preventive maintenance of the moving partsPlease refer to the instruction manuals (see § 2.4).

Preventive Maintenance Frequency LevelsRecommended operations 6 years 1 2 3

Dusting down the insulating enclosure on the poles (clean dry cloth) ■ ■ ■ ■

Checking the state of the plugging-in clamps ■ - - ■

Checking the moving part's earthing switch device (clamps and contact jaws) ■ - - ■

14 Maintenance

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14 Maintenance (contd.)

14�3 Preventive maintenance of the functional unitsPreventive Maintenance Frequency LevelsOperations recommended at the Functional Unit level 6 years 1 2 3Verification of the presence and condition of accessories (levers, etc.) ■ ■ ■ ■

Visual inspection of the exterior (cleanliness, absence of oxidation, etc.) ■ ■ ■ ■Cleaning of external elements, with a clean, dry cloth. ■ ■ ■ ■Checking the tightness to torque (covers, wiring ducts, connections, etc.) ■ ■ ■ ■Checking the mechanical controls by carrying out a few operations ■ ■ ■ ■Verification of the positioning of the status indicators (open and closed) ■ ■ ■ ■Dusting and cleaning the internal mechanical elements (without solvent) ■ - ■ ■Inspection of the tightening of the threaded fasteners and presence of internal stop elements

■ - ■ ■

Dusting and cleaning the internal mechanical elements (with solvent) ■ - - ■Lubrication and greasing of mechanical elements (with recommended products) ■ - - ■Monitoring the general appearance of the mechanical components and connections

■ - - ■

Testing the "function" mechanical interlocks ■ - - ■Operations that are specific to the "moving part" compartment 6 years 1 2 3Ensure the smooth functioning of the shutters (plugging-in/withdrawing) ■ - ■ ■

Checking the state of the plugging-in electrodes ■ - - ■Cleaning of the insulating elements, with a clean, dry cloth. ■ - - ■Cleaning and lubricating the mechanical parts (See § 14.5) ■ - - ■Examination of the electrical power contacts ■ - - ■Checking for the absence of overheating or of discharges in the plugging-in electrodes

■ - - ■

Operations that are specific to the "busbar" compartments 6 years 1 2 3Checking the tightness of the busbar connections ■ - ■ ■

Checking the leaktightness of the compartments ■ - ■ ■Cleaning the internal elements (insulators, connections, supports, etc.) ■ - ■ ■Visual inspection of the appearance of the internal components ■ - - ■Operations that are specific to the "High Voltage cables" compartment 6 years 1 2 3Checking the state of the earthing switch contacts ■ - - ■

Checking the leaktightness in the compartment ■ - - ■Examination of the state of the cable reassemblies ■ - - ■Cleaning the internal elements (insulators, connections, supports, etc.) ■ - ■ ■Cleaning and lubricating the mechanical parts (See § 14.5) ■ - - ■Visual inspection of the appearance of the internal components ■ - - ■Operations specific to the Low Voltage boxes 6 years 1 2 3Checking the state of the internal components ■ - ■ ■

Checking the tightness to torque of the terminals and electrical connections in general

■ - ■ ■

Examination of the general state of the wiring and the relays ■ - ■ ■

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14�4 Systematic maintenanceA systematic check of all High Voltage connections tightening points may be requested by the customer.Every 3 operations, it is therefore necessary to replace all these threaded fasteners .

In certain cases, it would be necessary to grease certain bolts or screws (please refer to the assembly drawings).

14�5 Lubricating and greasing points ■ Greasing the slides on the shutter guides.

Apply the General Safety Instructions for Electrical Applications and the particular rules for the network concerned for locking out procedures.

■ Greasing the earthing shoe on the moving part.Greases: (See §2.5)

■ Greasing the plugging-in contacts on the earthing switch.Duration: 1 hrs per Functional Unit

■ Lift the shutters(s) as shown in § 11.4. ■ Apply a light film of grease.

01

22

22

22

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14�6 Corrective maintenance on the functional units Corrective Maintenance LevelsReplacements or modifications 1 2 3Replacement of a VPIS luminous indicator (see § 14.7) ■ ■ ■Replacing HT fuses (see § 14.8) - ■ ■Replacing a voltage transformer (see § 14.9) - ■ ■Replacement of a current transformer (Core-type) (see § 14.10) - ■ ■Opening the door with the moving parts locked (see § 14.12) - ■ ■

14�7 Replacing a VPIS luminous indicatorThe defective luminous indicator can be replaced on functional unit whilst energized.Unscrew the 2 screws on the indicator.Remove the indicator from its housing.Disconnect the connector(s).Connect up a new indicator lamp (no special order or assignment for the connection of the connectors), place it in its housing and screw the 2 screws back in.

14�8 Replacing the HV fuses

Intervention Duration Busbar Cables Circuit breaker

Earthing switch

Normal 1 h 00 de-energized

de-energized

de-energized closed

Possible 1 h 00 energized de-energized

de-energized closed

Locking out the FunctionalUnit All locking-out operations must be performed according to the particular rules for the network concerned.Tools required:

■ Allen keys for hexagonal screws size 8 ■ Ratchet handle + 13 mm socket ■ Flat headed screwdriver

Parts required: ■ 3 fuses with the same reference

Characteristics of the EFEN - 2A fusesThe characteristics of the fuse EFEN 2A are engraved on one of the little collars.


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Replacement of fuses ■ Unscrew the 2 fixing screws (8 mm Allen key) from the compartment

panel.


■ Insert the key and unlock the fuse drawer.

■ Disconnect the fuses.

■ Open the shutters masking the fuses by pulling the first one to the right, then the second to the left.


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■ Press the plug and turn it several degrees to the left.

■ Lift out the cap and fuse.

■ Loosen the screw on the mounting. ■ Replace the fuse with another bearing the same reference.

■ Press in the plug and turn it several degrees to the right.

14�9 Replacing a voltage transformerProceed with the extraction of the moving part of the withdrawablevoltage transformer in accordance with § 10.2.

■ With the moving part removed, replace the voltage transformer.


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■ The three transformers should be fixed to the trolley.

14�10 Replacement of a current transformer (Coil-type)


Earthing switch


de-energized

de-energized closed

Possible 1 h 00 energized de-energized

de-energized closed

Locking out the Functional UnitAll locking-out operations must be performed according to the particular rules for the network concerned.Tools required:

■ 13 mm open-ended spanner ■ Allen keys for hexagonal screws size 2 ■ Flat headed screwdriver

Parts required:1 core with the same reference N° and same wire colour as that on the phase to be replaced.Access to the current transformer sis via the rear of the functional unit.

Dismantling the current transformer ■ Remove the rear panel (19 x HM8x25 screws). ■ Disconnect the HV cables and pull them down into the cable trough.

■ Dismantle the two insulating screens and their mounting from the centre (3 x HM8x20 screws).


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■ Dismantle the upper support pad.

■ Dismantle the lower assembly (2 x HM8x38 bolts).Pay careful attention to the positions of the screws. The screw headshould be on the side of the functional unit.

■ Dismantle the connector connections (3 x CHC M16x100 bolts, washers and nuts).

For phases at the End, the bolt head should always point outwards.

■ For functional units fitted with stress cones, the latter must be removed.

■ Dismantle the transformers' protective covers.


2.11

10

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■ Each plate is fixed in place by 2 H M8x20 screws.

■ Dismantle the insulating plate protecting the connector terminals (2 x HM8x20 screws).

■ The connector terminals are now accessible. ■ Disconnect the wires from the corresponding transformer.

■ Dismantle the support calliper held in place by a single screw.Pay careful attention to the earthing cable connected to the same bolt.

■ Remove the circular protective plate. ■ Replace the current transformer.


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Refitting the current transformerRepeat the aforementioned operations in reverse order.

Ensure that the transformer is fitted the right way round (P1, P2).

Tighten to the specified torque levels.

14�11 Replacing the cross braces�


Earthing switch


de-energized withdrawn closed


■ Torx screwdriverParts required:

■ 3 upper cross braces - with the same reference ■ 1 lower, monobloc cross brace

Extract the moving parts in accordance with the instructions given inChapter 13.Dismantle the current transformers (cores) in accordance with the instructions given in § 14.10.

■ Disassemble all blanking plates through the interior of the circuit breaker compartment.

■ Lift out all the shutters.

■ The cross bracing is now accessible.


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Disassembling the upper cross bracing (3 separate pieces) ■ The busbar can be reached through the rear of the functional unit as

described in § 6.8.

■ Disassemble the jaws, held in place by two screws, which are also used to hold in place the rear vertical bars.

■ A second person is required to hold in place the vertical connections.

■ Remove, simultaneously, the jaw and the vertical connection to the rear.

■ Unscrew the 4 fixing holes for each cross brace. ■ Extract the cross bracing.


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■ The three upper cross braces are now disassembled.

Dismantling the lower cross bracing (single component) ■ Identifying the 6 fixing points from the front.

■ From the rear, access to the 6 fixing points. ■ Remove the 6 screws.

■ From the front, dismantle the upper cover-fixed in place at four points.

■ Then, dismantle and remove the cross bracing support plate.


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■ The lower, monobloc, cross braces can now be removed.

■ The compartment is now empty.

Fitting a new lower cross brace� ■ Check the status and characteristics of the replacement component.

■ From the front, engage the new cross brace in its seating.

■ Position the cross brace.


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■ Fit and fix the front cross brace support plate.

■ One person should hold the block in place whilst a second tightens the six fixing screws.

■ Tightening will require the use of a ratchet wrench and extension.

Fitting the three upper cross braces�

■ Position the three new cross braces.

■ Attach each cross brace at 4 points.


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■ Hold the rear vertical connections in place whilst fitting and tightening the jaw.

■ The jaws are now fixed in place.

■ Refit all the shutters.

■ Refit the top cover.

Refit the current transformerProceed with the refitting of the current transformer, following the instructions given in § 14.10.


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14�12 Opening the door with the moving parts locked


Earthing switch

Normal 30 mins. energized de-energized de-energized closed

Possible 30 mins. energized energized de-energized open


■ Torx screwdriverParts required:NoneThis operation is used to open the door in the event the moving part remains locked in place.

■ Unscrew the inspection hatch mounting screw (25mm Torx screwdriver).

■ Slide the inspection hatch over to the left.

■ Pass your hand through the opening. ■ Manipulated the door lock situated in the lower right hand corner of the

compartment. ■ Open the door- see § 6.4.


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14�13 Anomalies and remediesObservation Device Probable Cause Remedy

■ Unusual noises when energized, crackling, vibrations.

■ Voltage presence box ■ "Faston" plug poorlyconnected.

■ Check the connections.

■ Defective capacitive voltage divider.

■ Defective capacitive voltage divider.

■ Replace the defective divider.

■ Insulators ■ Polluted or degraded insulating parts.

■ Clean the parts or consult our After-Sales Service: See address at the beginning of the manual.

■ Abnormal overheating at the connecting points.

■ Connecting ■ Poor tightening ■ Retighten to the appropriate torque after cleaning the contact plates.

■ Voltage presence indicator extinguished.

■ MV fuse on outgoingswitch or contactor

■ Fuse blown. ■ Replace all three fuses.

■ Voltage presence box ■ Deterioration of acomponent

■ Replace the box.

■ Abnormal efforts formechanical parts operations.

■ Earthing switch ■ Safety interlocking. ■ Check the position of the control mechanisms.

■ Plugging-in of the circuitbreaker or contactor movingparts

■ Load break switch ■ Circuit breaker does not

close. ■ Line section switch or

LV circuit breaker ■ Line section switch

or LV circuit breaker open ■ Check the closure of the

switch or the LV circuit breaker. ■ Protection devices ■ Action by protection

devices. ■ Check the adjustments

■ External connections ■ Poor connection. ■ Check wiring diagrams. ■ Low voltage connector

of the circuit breaker ■ Poor connection. ■ Check the connection.


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15�1 The spare partDescribes a part that is designed to replace a corresponding one with a view to re-establishing the original function.

The replacement of these parts can only be carried out by an approved person authorised and trained for this operation.

Programmed replacement Denomination Replacement

everyLevels1 2 3

This concerns wearing parts, designed to be replaced after a predetermined number of uses.Use: Maintenance stock, necessary for optimum maintenance procedures every 6 years.

Interlocking coil (Earthing Switch)

40,000 hours energized ■ ■ ■

Interlocking coil (Plugging in)

40,000 hours energized ■ ■ ■

HV fuses (by 3) 20 years ■ ■ ■

Heating element - ■ ■ ■

Non-Programmed replacement Denomination Levels

1 2 3VPIS luminous indicator ■ ■ ■

Exceptional replacement Denomination Levels

1 2 3Describes the spare parts or assemblies whose foreseeable service life is at least equal to that of the equipment.Use: Spare parts or sub-assemblies conserved in a safety stock.

Seal-off bushing ■ ■ ■Moving part micro-switch position ■ ■ ■Handle ■ ■ ■Wrench ■ ■ ■Moving part (circuit breaker, etc.) ■ ■ ■Current transformers - ■ ■

Voltage transformers - ■ ■

15.2 Identification of the equipment (See § 5�3)

For all orders for spare parts, it is necessary to enclose the equipment characteristics form.

15�3 Storage conditionsThe components should be stored away from dust, humidity or the sun. In order to facilitate the search, they must be marked bythe Schneider Electric reference number. Certain components are fragile; they should preferably be stored in their original packaging.

15�4 Maintenance ConsumablesDesignates the products necessary for maintenance (See § 2.5).

15 Spare parts

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16�1 Valorisation of the equipmentOur Functional Units are composed of recyclable elements.

16�2 Safety instructionsDo not dismantle the mechanical control mechanism springs without the releasing device.

Do not open the poles.

Do not dismantle the ear thing switch's springs without the releasing device.

16�3 Dismantling of the equipmentConsult Schneider Electric for all decommissioning services.

■ Remove all electrical equipment (coils, motors, etc.). ■ On disassembly, the materials must be sorted and sent on via the appropriate recycling channels.

16 At the end of the equipment's operational life

3 *

*

*

1

2

AMTNoT127-02 02-2011

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As standards, specifications and designs change from time to time, please ask for confirmation of the information given in this publication.

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