SM6. instructions for use. GAM cubicle (1250A) MV distribution factory built assemblies at your service. Anglais

Transcription

1 SM6 Anglais MV distribution factory built assemblies at your service instructions for use GAM cubicle (1250A)

2 foreword... 3 symbols and conventions... 3 as per iso contact the Schneider Electric service unit for diagnosis and advice 3 4 distribution rules... safety rules general description... 5 GAM cubicle connection with 1 cable by phase... 5 GAM cubicle connection with 2 cables by phase... 5 handling instructions... 7 identifying the device... list and number of bags and accessories weight... overall dimensions handling by slings... handling by forks storage... 9 installation instructions preparing the cubicles before assembling the switchboard... fitting the end plate assembling the switchboard... securing to the ground installing in the substation... fitting the busbar after installing the cubicles in their final position access to connection of the low voltage auxiliaries... positioning the earth busbar connecting the MV cables... securing the insulating screens start---up and operating instructions checking before energising operating the device with power off energising the MV incoming cables voltage indicator phase balance adaptater... cable test intervention operating instructions operations and visualising the cubicle status padlocking... keylocking operating safety maintenance instructions preventive maintenance, cleaning instructions and power---up... replacing a voltage indicator module replacing a voltage indicator pack... anomaly/solution switchboard spare parts... options (consult us) recovery of SF6 gas at end of life EN revision : 01 1

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4 foreword symbols and conventions Caution: you will find all the symbols below throughout the document, indicating the hazard levels depending on the different types of situation. DANGER as per iso DANGER: failure to follow this instruction will result in death or serious injury. WARNING as per iso WARNING: failure to follow this instruction may result in death or serious injury. CAUTION as per iso CAUTION: failure to follow this instruction may result in injuries. This alert signal can also be used to indicate practices that could damage the SM6 unit. INFORMATION-ADVICE We draw your attention to this specific point EN revision : 01 3

5 contact the Schneider Electric service unit for diagnosis and advice Call your sales representative who willputyouincontactwith the closest SCHNEIDER ELECTRIC group service centre. You can log on to: electric.com distribution rules The aim of this publication is to enable the SM6 unit to be installed correctly. This document is not a commercial document. It is a strictly technical document drawn up by Schneider Electric. safety rules CAUTION WARNING All the operations described below must be performed in compliance with applicable safety standards, under the responsibility of a competent authority. Thecontractormustbecertified and authorised to manipulate and perform work on the SM6 unit. CAUTION Only undertake the work after having read and understood all the explanations given in this document. If you have any difficulty complying with these rules, please contact Schneider Electric EN revision : 01

6 general description GAM cubicle connection with 1 cable by phase 1 : busbar compartment 2 : monitoring compartment 3 : control compartment 4 : cable connection compartment A : earth busbar connection pad B : busbar connection pad C : earthing switch D : voltage presence indicator E : capacitive divider F : inspection port for connection of cables and earthing switch G : cable connection pads H : front panel J : 3 cable bottom A 1 B E C G 4 2 D 3 F J H GAM cubicle connection with 2 cables by phase 1 : busbar compartment 2 : monitoring compartment 3 : control compartment 4 : cable connection compartment A : earth busbar connection pad B : busbar connection pad C : earthing switch D : voltage presence indicator E : capacitive divider F : inspection port for connection of cables and earthing switch G : cable connection pads H : front panel J : 6 cable bottom A 1 B E C G 4 2 D 3 F J H EN revision : 01 5

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8 handling instructions identifying the device A D2 D3 B D1 C A :ratingplate B : characteristics and designations C :firmplate serial number D1: riveted to the control cover D2: stuck behind the monitoring cover D3: stuck on the frame column list and number of bags and accessories supplied with the cubicle Switchboard packing list : (possibly according to switchboard composition) 1operatinglever 2endplates 1bagofendplate fasteners S4 : GAM packing list 1 cable by phase : 1 bag of inter---cubicle links S1 : drycableflanges1cableversion 3 flange supports 1 cable version 1 bag of screws S7 : earthbusbar 6busbars 3 connection Us 6 distribution frames (in version > 12 kv) 1 insulating screen kit 1 bag of busbar screws (1250A feeder) 1 bag of bottom screws GAM packing list 2 cables by phase : 1 bag of inter---cubicle links S1: drycableflanges2cables version 3 flange supports 2 cables version 1 bag of screws S7: earth busbar 6busbars 3 connection Us 6 distribution frame (in version > 12 kv) 1 insulating screen kit 1 bag of busbar screws (1250A feeder) 1 bag of double cable screws weight 160 Kg Do not use the control plate to handle the cubicle EN revision : 01 7

9 overall dimensions L1 L2 L handling by slings The handling lugs are reserved solely for handling of SM6 cubicles. A : HM12 screws and nuts B : Schneider Electric maximum useful load = 400 KG CE Schneider Electric CMU =400 KG CE L CAUTION C : in event of hole deformation (ovalisation) replace the lugs. A B 60 maxi L=750 mm mini Schneider Electric CMU =400 KG CE C handling by forks EN revision : 01

10 storage EN revision : 01 9

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12 installation instructions preparing the cubicles before assembling the switchboard Delivery state: earthing switch in the closed position :screw+washer : screw + washer + nylstop E D B A Remove front panel A followed by pads B. (screws cannot be re---used) Remove the cover of monitoring compartment C and the eye bolts D and crossbeams E. C H G Remove part G (4 screws). Remove part H (7 screws). fitting the end plate preparation (only if the cubicle is at the end of the switchboard) Bag of screws S4: (HM 6 x 12 screws only). Inthecaseofextensionwith equipment manufactured before the 02/02/95, you must replace the end plate of the existing substation. Mount 10 cage nuts on the cubicles at the end of the switchboard EN revision : 01 11

13 Introduce the cage nut outside the cubicle into the specially designed rectangular hole. 2 Topple the cage nut inside the cubicle. 3 Pushthecagenutin the direction of the arrow to place thetoppartofthecagebehind the plate. 4 The nut is now correctly placed. Position the end plate. Mount the screws on the cage nuts. Mount the screws with the nylstop nuts. Direction for mounting the screw and the nylstop nut. (nut inside the cubicle) Secure the 2nd end plate in the same way EN revision : 01

14 assembling the switchboard bag of screws S1 : (HM 6x16 screws) : screw + washers + nut M K L top view Secure the cubicles to each other (the remaining screws are intended to mount the earth busbar). K Bolt mounting direction K :lefthandcubicle L : righthand cubicle M : to join the 2 cubicles. Screw HM6x60 to tighten moderately Tightening torque : 6 Nm. L securing to the ground (screws not supplied) ,3x12, installing in the substation 100mm* 100mm* GAM GAM 20mm Installing the switchboard to the right of the wall (*) minimum dimensions to ensure proper operation of the device 20mm Installing the switchboard to the left of the wall EN revision : 01 13

15 fitting the busbar after installing the cubicles in their final position bag of accessories S2: or S6 : Tooling: 1x1to50Nmtorquewrench 1 x 1/ /8 reducer 1x6mmsquaredrivebit 1x6mmhexagonsocketor 1squaredrivehexagonsocket. Connecting the busbar with a cubicle to the left. Tightening torque : 28 Nm. Connecting the busbar with a cubicle to the right. Tightening torque : 28 Nm. assembling the connection U 2holesU Mount the 3 connection U on the support insulators using the M8x30 screws (square drive hexagon) without locking them in place. mounting the busbars Must be complied with Position the busbars as shown opposite (top view) EN revision : 01

16 Version < 12 kv V Mount the busbars and the screws. Tightening torque : 28 Nm. Lock the screws V fastening the connection Us, after having mounted all the busbars. Tightening torque : 28 Nm. Version > 12 kv The remaining screws are not used. Correctly position the field distributors on the connection Us. (use the polarising slots to lock them in place) Incorrect mounting. V Mount the busbars and then the screws. Tightening torque : 28 Nm. Lock the screws V fastening the connection Us after having be mounte dallt hebusbars. Tightening torque : 28 Nm EN revision : 01 15

17 H G Put back part H of the roof. (nuts inside the cubicle) Put back part G. access to connection of the low voltage auxiliaries A Cable access to the connection terminal block is via orifices A. Cubicle equipped with a LV trunking (optional). Proceed in the same manner after dismantling the upper plate of the trunking. Put back the cover of the monitoring compartment: comply with reference marking for each cubicle EN revision : 01

18 positioning the earth busbar bag of screws S1: The earth busbars are connected to one another. (HM 8x35 screws) 2 ways of connecting to the earth of the substation frames. connecting the MV cables AV AV 1 cable by phase: Mount the cable---flanges on the 3 bottom plates 1, 2 and 3. (plate n 1 is already in place) H bag of screws S3: HM 6 x16 screws. The remaining screws are intended for cable flanging. 2cablesbyphase: Mount the cable---flanges on the 3 bottom plates 1, 2 and 3. (plate n 1 is already in place) H bag of screws S3: HM 6 x16 screws. Part of the remaining screws are intended for cable flanging. 2 3 NB : plates 2 and 3 must be secured as shown above EN revision : 01 17

19 Install the cable bushing. 1cableperphase: ConnectthecableonphaseL1. The screws are permanent. 2cablesbyphase: Connect the cables on phase L1. The screws are permanent. Use a torque wrench to lock the cable in place. Tightening torque : 50 Nm. Flange the cable(s). (HM 8x50 screw) EN revision : 01

20 1 2 Mount the bottom plate 2 behind the cubicle. H mount phases L2 and L3 following the same instructions as phase L1. securing the insulating screens NB: for simplicity s sake, the cables and bottom plates are not shown. Secure the support insulating screen to the left in the cubicle, 4screws. Tightening torque : 3 Nm. installation of fixings 1 : position to be followed for a correct assembly 2 : fixing is in place EN revision : 01 19

21 To attach the first screen to te bottom of the cell. To fix the 3 other screens ones after the others EN revision : 01

22 start-- up and operating instructions checking before energising Do not leave anything in the connection compartment. Putbackthefrontpanel. operating the device with power off Carry out a few operations of the earthing switch. energising the MV incoming cables Theearthingswitchmustbeinthe open position. (see operating instructions) EN revision : 01 21

23 voltage indicator Incoming cubicle : On energisation of the upstream part of the installation, the voltage indicator lamps must come one. Outgoing cubicle : Once the line disconnector and the circuit---breaker have been moved to the closed position, the voltage lamps come on. PDU: old version of the voltage indicator installed on SM6 cubicles previous to L. VPIS: voltage presence Indicating system installed on SM6 cubicles later than L. phase balance adaptater Note: the monitoring devivce is thesameasthatusedby the RM6 equipment. Note: inthecaseofacontrol between old presence of tension and new VPIS to use the adaptater : FA Phase comparator of the simplified type. In phase balance : H the comparator lamp does not come on. In phase unbalance: H the comparator lamp comes on. cable test intervention Phase marking or current injection for fault tracking. H close the earthing switch H open the front panel H fit the spring tie A B front panel Secure vice A against the earthing rod and connect the earthing device on the 3 shafts of the lugs of cables B. Then open the earthing switch to perform the cable insulation test. Cross--- section of cubicle, bottom view EN revision : 01

24 operating instructions operations and visualising the cubicle status Position the lever as shown for downward opening operations. Position the lever as shown for upward closing operations. Opening the earthing switch. Closing the earthing switch after checking voltage status (see voltage presence). padlocking Padlock the earthing switch in the open or closed position by 1, 2 or 3 diameter 8 mm padlock(s). Padlocking of the front panel EN revision : 01 23

25 keylocking Consult the keylocking installation and operating manual n operating safety The front panel can only beremovedorfittedwhen the earthing switch is closed EN revision : 01

26 maintenance instructions preventive maintenance, cleaning instructions and power --- up If necessary: contact the Schneider Electric group service centre. We strongly recommend that you carry out at regular intervals (at least roughly every 2 years) afew operating cycles on the switching devices. CAUTION Never lubricate the disconnector operating mechanism. If necessary: contact the Schneider Electric group service centre. In normal operating conditions (temperature between C and40 C) no special maintenance is required. CAUTION Never use solvents and alcohol. We recommend that you inspect each compartment (cable, fuse, busbar)* at regular intervals according to environmental conditions. Ifthewindowsaredusty,thatyou remove the dust using a dry cloth. example : In harsher conditions (aggressive atmosphere, dust, temperature less than C or greater than 40 C) consult the nearest Schneider Electric service centre EN revision : 01 25

27 replacing a voltage indicator module on cubicle former to L Manually extract the voltage indicator: the switchboard may be energised. replacing a voltage indicator pack type VPIS sur cellule postérieure à L removing This operation is possible with the switch energised. Disassemble the 2 screws (A) fixing the voltage indicator pack A B Extract the voltage indicator pack and disconnect the connector (B) at its rear. C fitting On the characteristics label (C) check that the new pack matches the rated voltage for your network. H 1,7 kv to 3 kv H 3kVto7,2kV H 10 kv to 24 kv Fit the new voltage indicator pack in the opposite direction to disassembly. Tightening torque: 0,1 mdan anomaly/solution switchboard H the voltage presence indicator does not light up. H the incoming cables are not energised. H check the lamp boxes. H the front panel does not open or cannot be fitted. H check that the earthing switch is closed EN revision : 01

28 spare parts H voltagepresenceindicator. (for other maintenance operations, consult us: see the Groupe Schneider Electric services). options (consult us) H auxiliary contacts. H enlarged monitoring compartment and/or monitoring box. H padlocking by lock EN revision : 01 27

29 recovery of SF6 gas at end of life for disconnector cubicle The SF6 must be removed before any dismantling operation can be carried out in compliance with the procedures described in IEC and according to the following instructions. The gas must be treated in compliance with IEC H volume of gas to be recovered: 35 litres H internal gauge pressure: 40 kp A NB : SF6 gas recycling at the end of circuit-- breaker life, refer to its instruction for use. Remove the cover (A) from the control cabinet. control cover access B Remove the control cover (B). Remove the 3 screws retaining the operating mechanism. Cut the wiring to remove the operating mechanism. Drill 2 holes in the filler valve safety cap 4 mm, centreline 20 mm, max. depth 4 mm EN revision : 01

30 CAUTION pump the gas for at least 15 minutes. C Using a spanner wrench, remove the safety cap from the valve. Connect the special pumping equipment (C) EN revision : 01 29

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34 group Schneider Electric service centers are there for: engineering and technical assistance start-up training preventive and corrective maintenance adaptation work spare parts Call your sales representative who will put you in touch with your nearest group Schneider Electric service centers. Schneider Electric Industries SAS 89, boulevard Franklin Roosevelt F Rueil--- Malmaison (France) Tel:+33(0) electric.com EN revision : 01 As standards, specifications and designs change from time to time, please ask for confirmation of the information given in this publication. Conception, rédaction: Service Documentation Technique T&D Edition du : 24/04/2008