SM6. instructions for use. IMCandQMCcubicles. MV distribution factory built assemblies at your service. Anglais

Transcription

1 SM6 Anglais MV distribution factory built assemblies at your service instructions for use IMCandQMCcubicles

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 IMC : switch cubicle... 5 QMC : combined fuse---switch cubicle... 5 handling instructions... 7 equipment identification... list and number of bags and accessories overall dimensions and weight... handling by slings handling with forklift... handling storage installation and operation recommendation installation instructions preparing the cubicles for switchboard assembly assembling the end plate... assembling the switchboard fixing to the floor... mounting in substation fitting the busbars after installing the cubicles at their final location cable entry for connection of low voltage auxiliaries fitting the earth collector... storing the operating lever HV cable connection in an IMC cubicle... assembling the connection basin fitting the basin and the earth bar... installing the cable HV cable connection in a QMC cubicle positioning fuses in a QMC cubicle... transformer protection commissioning instructions IMC/QMC cubicle status indication operating the equipment when de---energised... energisation of HV incoming cables voltage indicators... phase balance adaptater operating instructions manual operation IMC/QMC cubicle status indication discharging a CI2 operating mechanism... operating the earthing switch QMC cubicle fuse status indication... padlocking latching... safety operation maintenance instructions preventive maintenance, cleaning instructions and power---up corrective maintenance... replacing a voltage indicator block on a cubicle prior to U replacing a voltage indicator block... diagnostic chart EN revision : 02 1

3 spare parts... options recovery of SF6 gas at end of life... options and spare parts EN revision : 02

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 : 02 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 : 02

6 general description IMC : switch cubicle 1 : busbar compartment 2 : monitoring compartment 3 :switchgearcompartmen switch and earthing switch 4 : control compartment 5 : cable connection compartment A : earth collector connecting pad B : busbar connecting pads C : current transformers D : voltage indicator E : phase separator screen F : inspection window G : front panel N : rear extension sheet metal N 2 4 D A 1 B 3 C E F G 5 QMC : combined fuse---switch cubicle 1 : busbar compartment 2 : monitoring compartment 3 : switchgear compartment switch and earthing switch 4 : control compartment 5 : cable connection compartment and positioning fuses A : earth collector connecting pad B : busbar connecting pads C : fuse blown tripping system D : voltage indicator E :fuses F : current transformers G : window for inspection of fuse installation and downstream earthing switch position indicator H : bottom field distributor and cable connection J : front panel N : rear extension sheet metal N 2 4 D G J A 1 B 3 C E F 5 H EN revision : 02 5

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8 handling instructions equipment identification A D2 D3 B E D1 C list and number of bags and accessories supplied with cubicle switchboard pack : (where applicable --- depends on composition of switchboard) 1 operating handle 2endplates 1bagofendplatescrews S4 : A : information plate B : specifications and designations C : manufacturer s label E : motor drive system plate (option) IMC pack : 1 bag intercubicle connections S1 : bag busbar distributors >12 kv S2: or 1 bag busbar fixings ± 12 kv S6: bag back plate fixings S3 : backplates 3cablebushings 3 cable clamps 3 cable clamp supports 1setofbusbars 1 earth collector 1 basin kit cablebushings 1 cable clamps 1 cable clamp supports 1bagofscrews serial number D1: riveted to control compartment cover D2: glued to back of monitoring compartment cover D3: gluedtoframeupright QMC pack : 1setofbusbars 1 earth collector 3cablebushings 1 bag intercubicle connections S1 : bag busbar distributors >12 kv S2 : or 1 bag busbar fixings ± 12 kv S6 : EN revision : 02 7

9 overall dimensions and weight IMC:170 kg QMC:180 kg L1 L2 L EN revision : 02

10 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 C Schneider Electric CMU =400 KG CE CAUTION C : in event of hole deformation (ovalisation) replace the lugs. A B L=750 mm mini L L 60 maxi 60 maxi L= 1130 mm mini L= 970 mm mini. handling with forklift EN revision : 02 9

11 handling Do not grasp the operating mechanism front plate to manipulate the cubicle. storage 70 C C EN revision : 02

12 installation and operation recommendation switchgear ageing withstandinanmv substation depends on 3 main factors H The need for proper implementation of connections: the new cold slip --- on and retractable technologies offer ease of installation, thereby promoting withstand over time. Their design enables operation in polluted environments with harsh atmospheres. H Theinfluenceoftherelative humidity factor: installation of heating resistors is essential in climates with high relative humidity and large temperature differences. H Ventilation control: the grids must be sized according to power loss in the substation. These grids must only be placed near the transformer, so as to prevent air circulating on the MV switchboard. operation Our service centre is at your disposal at all times: H To conduct an installation diagnosis. H To suggest the appropriate maintenance operations. H To offer you maintenance contracts. H To suggest adaptations EN revision : 02 11

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14 installation instructions preparing the cubicles for switchboard assembly Delivery state : earthing switch in closed position. :screw+washer : bolt + washer + Nylstop nut D C B A Remove the front panel A and then thebaseplatesb. (the screws are not re---usable) Remove the monitoring compartment cover C and the lifting eye bolts D. G H G Remove part GandG.(6screws) Remove part H. (7screws) assembling the end plate Refer to the switchboard parcel manual, as per the upgrade of the new standard IEC EN revision : 02 13

15 assembling the switchboard screw bag S1 : (HM6x16 mm screws) : screw+washer+ nut M K L vuededessus K L Fix the cubicles together. (the additional screws are for mounting the earth collector) Bolt mounting direction. K : left---hand cubicle L : right---hand cubicle M : to join the 2 cubicles. Screw HM6x60 to tighten moderately. Tightening torque : 6 Nm. fixing to the floor (screws to be provided by the contractor according to civil engineering) IMC ,3x12, ,3x12, QMC The shaded part represents the basin which juts out by a 100 mm underneath the cubicle. mounting in substation Installation of the switchboard to the right of the wall. (minimum dimension for correct operation of the equipment) Installation of the switchboard to the left of the wall. IM PM ou QM 140 mm 140 mm PM ou QM IM 21,5 à 100 mm 21,5 à 100 mm EN revision : 02

16 fitting the busbars after installing the cubicles at their final location accessories bag S2 : or S6 : Tools : 1 torque wrench 1 to 50 Nm. 1 1/ /8 instrument transformer 1 6 mm socket 1 6 mm hexagon male drive socket for voltages > 12 kv 1 hexagon female drive socket for voltages < 12 kv Busbar connection with cubicle on left. Tightening torque : 28 Nm. Busbar connection with cubicle on right. Tightening torque : 28 Nm. Versions ±12 kv S6 : Mounting without field splitter. Version > 12kV S2 : Correct position of the field splitter. Incorrect position, riskof detérioration. NB : The busbar spacers must only be installed for version 25 ka. A bar cross---section view of the s Install the two busbar spacers so they are centred on the busbar portion. Fit two O ring seals (A) oneach side of the busbar spacer between phases EN revision : 02 15

17 : vis+rondelles+écrou nylstop H : vis+rondelle G G Replace top part H. (nuts inside cubicle) Replace part GandG. cable entry for connection of low voltage auxiliaries A Cable entry to the auxiliary terminal block is via holes A on top. Cubicle equipped with a wiring duct. (option) Proceed in the same manner after removing the trough top plate. Replace the monitoring compartment cover, complying with the markings of each cubicle EN revision : 02

18 fitting the earth collector screw bag S1 : The collectors are connected together. (remaining HM8x35 mm screws in bag S1 : ) Two ways to earth the substation exposed conductive parts. storing the operating lever A Fix the hook (A) and the wall. (screws not supplied) The operating lever has to be hooked (B). B HV cable connection in an IMC cubicle (3 one---pole cables) 1 : copper cable or aluminium cable To limit the effort on the cable connection you have to ajust the lenght at the bending radius of the cable. 1 EUIC (short inner end, cold fitted). They must be manufactured according to the standard : IEC Mount the cable clamp supports.nuts and bolts in bag S3 : (HM6 x 16 bolts). The remaining nuts and bolts are for cable clamping EN revision : 02 17

19 Removethetwophaseseparator screens. Lift them, tilt them and withdraw them. Install the cable bushing. L1 Connect the cable to phase L1. The screws are permanent. Tightening torque : 50 Nm. Clamp the first cable. (HM8x50 mm screw) 1 2 Fit the back plate 2 at the rear of the cubicle. H Fit phases L2 and L3 by the same procedure as L1. Connect the 3 cable earthing braids to the earth collector. (the screws are permanent) EN revision : 02

20 Position the back plates so that the slots A are not face--to--face. connection alternative 1 three---pole cable clamping the tab of part 1 secures part assembling the connection basin Fasten together the various plates making up the basin kit. Fit the cage nuts to fix the bottom plates. Fit the flange support and the cable gland EN revision : 02 19

21 fitting the basin and the earth bar Install and fix the basin (10 screws). Position the earth bar A on the lefthand side of the basin (2 clips) and fix it to the earth bar already placed in the cubicle. (HM6 x 30 screws) A installing the cable Cut out the cable gland and flange the cable to the bottom of the basin. connection L1 Put the phase --- to --- phase insulation screen back into place before going on to the next strand. Connect the cable earthing braid(s) to the earth bar (HM6 x 30 screws). Connect the strand of phase L1. The screws are permanent Tightening torque : 50 Nm EN revision : 02

22 HV cable connection in a QMC cubicle Do not use cable clamp supports. Open the earthing switch using the operating handle. Demount the plinth. (4 screws) Demount the basin. (8 screws) Invert and replace the basin. Replace the plinth. (re---use the same screws) Install and cut the 3 cable bushings. Connect the cables in the order L1, L2 and L3. (the screws are permanent) Tightening torque : 50 Nm. Close the earthing switch EN revision : 02 21

23 positioning fuses in a QMC cubicle Reminder: Check the condition of fuses before placing them. Raise the cover of the top field distributor by means of the fuse. Insert the bottom end of the fuse into the bottom tulip contact. NB : -- When changing a fuse, all 3 fuses should be changed at the same time. -- Do not re--use fuses that have already been used. Then insert the top end of the fuse into the top contact and check that the cover of the field distributor has closed properly. Turn the label to face the front. Do not grasp the fuse in the middle. fuse mounting direction Install the striker fuses which trip the switch when they blow. Percuteur Striker pin Schlagstift Percussore Theendofthefusewiththestriker pinismarkedasshownabove. The specifications and the mounting orientation of the fuse areprintedonthefusebody. Turn the label to face the front. (striker pin at the top) EN revision : 02

24 transformer protection Fuse ratings for SM6 protection units such as the QMC depend, among other things, on the following criteria : H Service voltage H Transformer rating. H Fuse technology (manufacturer). H Different types of fuses with medium loaded striker may be installed: ---Solefuse fuses as per standard UTE NFC CF Fusarc fuses as per IEC recommendation and DIN dimensions dimensions of fuses Soléfuse (UTE standard) CF Fusarc (DIN standard) Ø45 Ø Ø55 Example: for the protection of a 400 kva transformer at 10 kv, select either Solefuse fuses rated 43A or CF Fusarc fuses rated 50A. Please consult us on installation rated voltage (kv) rating (A) ,2 6,3 à , ,3 à 63 2 weight (Kg) rated voltage (kv) 33 L rating (A) L (mm) (mm) weight (Kg) 7, ,3 12 6,3 à ,4 80 à ,3 24 6,3 à ,4 50 à EN revision : 02 23

25 selection table (rating in (A), no overload, C <θ <40 C) Please consult us for overloads and operation over 40 C. (*) please, consult us. type of fuse service voltage (kv) transformer rating (KVA) UTE NFC standards: , Solefuse General case, UTE NFC standard Solefuse General case, IEC standard CF Fusarc and SIBA* 3, * 200* 7, , * 5, ,5 31, * 160* , * 160* 6, , * 10 6, , * 200* * 160* 13,8 6, ,5 31, * 125* 125* 17,5 15 6, , * 125* 20 6,3 6, , * 125* ,3 6, , * rated voltage (kv) reference list FUSARC CF Reference list of fuse inside QM cubicle according to IEC standard. Please consult us for all other type of fuses. SIBA Ur.7,2 Kv Ur.12 Kv Ur.24 Kv Ur.7,2 Kv Ur.12Kv Ur.17,5Kv Ur.24 Kv Ir(A) ref Ir(A) ref Ir(A) ref Ir(A) ref Ir(A) ref Ir(A) ref Ir(A) ref BN 6, M0 6, M M M M M M M M M0 31, M0 31, M M M M M M M M M M EN revision : 02

26 commissioning instructions IMC/QMC cubicle status indication Do not leave anything in the connection compartment. Check on all phases that : H thefuseispositionedcorrectly. H the cover of the field distributor is closed properly. A Replace the front panel A. operating the equipment when de---energised (see operating instructions) Operate the earthing switch several times. Operate the switch several times. energisation of HV incoming cables The equipment must be open. (see operating instructions) EN revision : 02 25

27 voltage indicators A B A : voltage presence indicator lamp (1 for each phase). B : connection point used to connect a phase concordance unit. As soon as the cables have been energized, the voltage indicator lamps should go on. characteristics The voltage presence indication is ensured in the voltage range defiried by IEC 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. In phase balance : H the comparator lamp does not come on. In phase unbalance: H the comparator lamp comes on EN revision : 02

28 operating instructions manual operation IMC/QMC cubicle status indication Position the handle as shown for downward opening operations. Position the handle as shown for upward closing operations. CIT operating mechanism, front panel. CI1 operating mechanism, front panel. J CI2 operating mechanism, front panel. J : identification of charging state EN revision : 02 27

29 manual operation of the switch Closing the switch. (CIT / CI1 operating mechanisms) Charging the spring. (CI2 operating mechanism) Closing the switch. (CI2 operating mechanism) Opening the switch. (CIT operating mechanism) Opening the switch. (CI1/CI2 operating mechanisms) EN revision : 02

30 discharging a CI2 operating mechanism A B B Cubicle de--energised : Close the switch: button A then open: button B. Cubicle energised : Press the open button B. CAUTION This operation can damage the operating mechanism. Perform only when strictly necessary. operating the earthing switch These operations can be performed only if the switch operating mechanism is in the OPEN and DISCHARGED position. (for CI2 see previous sections) Close the earthing switch (for CIT / CI1 / CI2 operating mechanisms) after verifying that there is no voltage present. (see presence of voltage) Open the earthing switch. QMC cubicle fuse status indication Fuses serviceable. (white indicator) At least one fuse unserviceable. (red indicator) EN revision : 02 29

31 padlocking Note : if the cubicle is fitted with a CI2 operating mechanism, the latter can be discharged if necessary (see previous sections) Padlocking the motor drive. (option) Padlock the motor drive out of servicebeforeopeningtheswitch. It can be padlocked in service or out of service. Padlock the switch open or closed using 1, 2 or mm dia. padlocks. Padlock the earthing switch open or closed using 1, 2 or mm dia. padlocks. Padlocking the front panel. latching See lock installation and operating manual en. safety operation The front panel can be fitted or removed only with the earthing switch closed EN revision : 02

32 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. If the insulating parts are dusty, that you 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 : 02 31

33 corrective maintenance Replacement of fuses: H the cubicle must be de---energised. H switch open. H earthing switch closed. Open the front panel to obtain access to the fuses. Important note : IEC standard recommends replacement of the 3 MV fuses if any one of them blows. replacing a voltage indicator block on a cubicle prior to U Disengage the top end of the fuse. Then lift the fuse completely out. To fit the replacement fuses see the section on positioning fuses in a QMC cubicle. Extract the indicator unit by hand thiscanbedonewiththe switchboard live. replacing a voltage indicator block VIPS type on a cubicle after U removal This operation can be conducted with an enegised switch. install remove the 2 fixing screws from the voltage indicator block (A). On the electrical data label (C), make sure that the new block correctly corresponds to the rated network voltage H 1,7kVà3kV H 3kVà7,2kV H 10 kv à 24 kv A B Remove the voltage indicator block and unplug the incoming connector (B) from it. C Install the new voltage indicator bock in the reverse order for removal. Tightening torque 0,1 mdan EN revision : 02

34 diagnostic chart IMCandQMCcubicles H voltage indicator does not light up H incoming cables are not live H H H H check the lamp units check that the switch is closed check that the fuses are present check the condition of the fuses H frontpanelwillnotopenorcannotbefitted H check that the earthing switch is closed H earthing switch cannot be operated H check that the switch is open H switch cannot be operated H check that the earthing switch is open motor drive (option) H electrical malfunction H check the LV fuses (CIP2) S13 = switch handle entry S14 = earthing switch handle entry H (*) manual operation impossible after electrical closing cycle for voltage down more than 15% H (*) handle insertion impossible after electrical closing cycleforvoltageupmorethan15% (*) operation is guaranteed at the nominal voltage +15%. H check the electrical interlocks S (insertion of handle) H check that the earthing switch operating shaft is fully open H check that contact S14 is not disabling the power supply. Adjust if necessary H check the configuration of the CIP1 plate (see diagram) H use the operating handle to apply a closing torque as far as the end stop the manual opening operation can then be performed H operate electrically if possible, if necessary using a back---up power supply H to allow insertion of the operating handle turn the switch shaft in the closing direction using a large screwdriver (as a precaution disable the electrical operating mechanism. If necessary hold up thelockingbladethatactsoncontacts13) EN revision : 02 33

35 spare parts H fuses (UTE or DIN) H voltage indicator For other parts, please consult us: see groupe Schneider Electric service centers options (please consult us) For IM cubicles H motor mechanism H auxiliary contacts H LV compartment or incoming cables compartment from top H keyed interlocks H 50 W heating element H extra height plinth H relay Flair Din H low voltage cabinet H enlarged LV compartment H phase concordance tester H kit two dry single cables a phase H T200S for remote control For QM cubicles H motor mechanism with shunt trip release H auxiliary contacts H LV compartment or incoming cables compartment from top H keyed interlocks H 50 W heating element H extra height plinth H relay Flair Din H contact for fuse blown indication H enlarged LV compartment H undervoltage or shunt type opening release For PM cubicles H motor mechanism H auxiliary contacts H LV compartment or incoming cables compartment from top H keyed interlocks H 50 W heating element H extra height plinth H relay Flair Din H low voltage cabinet H fuse blown mechanical signalling EN revision : 02

36 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 : 02 35

37 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). options and spare parts H voltage indicator H H H CIT operating mechanism Kit machansim 48Vcc Fuses (For other parts, please consult us: see groupe Schneider Electric service centers.) EN revision : 02

38 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 : 02 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