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

Transcription

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

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 DMVL : circuit--- breaker cubicle... 5 version DMVL--- A with EVOLIS circuit--- breaker... 5 handling instructions... 7 identification of the device... list and number of bags of accessories overall dimensions/weight... handling by slings handling by forks... handling storage... 9 installation and operation recommendation installation instructions preparingthecubiclebeforeassemblingtheswitchboard fitting the end plate assembling the switchboard... ground fastening installation of the switchboard in the substation fittingthebusbarafterinstallationofthecubiclesintheirfinalposition fitting the earth busbar access to the LV auxiliaries connection... ConnectionofMVcablesinaDMVL---A commissioning and operating instructions checking prior to energisation voltage presence checking phase balance... position of line disconnector operating lever circuit --- breaker off --- load operations... energisation of the downstream part of the installation de---energisation of the downstream part of the installation... operating safety padlocking devices... key --- locking maintenance instruction preventive maintenance, cleaning instructions and power---up fault / solution table... options spare parts... spare parts and options recovery of SF6 gas at end of life AAV55927 revision : 02 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. AAV55927 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. 4 AAV55927 revision : 02

6 general description DMVL : circuit---breaker cubicle 1 : top busbar compartment 2 : monitoring compartment 3 : switchgear compartment: line disconnector 4 : control compartment 5 :bottombusbarorcable connection compartment A :earthbusbar connection pad B :topbusbar connection pads C : inspection viewports D :EVOLIStypeMV circuit --- breaker E : front panel N : rear extension plate N A 1 B 3 5 D 2 4 C E version DMVL --- A with EVOLIS circuit --- breaker (front panel removed) F : voltage presence indicator G : current transformers H : capacitive dividers J : downstream earthing switch K : MV cable connection pads L : circuit---breaker control plate M :specificsensors F G K L H J AAV55927 revision : 02 5

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8 handling instructions identification of the device A : information plate B : characteristics and description C : rating plate Note: the circuit--- breaker characteristics are given on the latter. Serial number D1: riveted on the command cover D2: stuck behind the control covers D3: stuck on the frame upright 1 B A D1 D2 D3 D2 B C 1 1 : manual number list and number of bags of accessories supplied with the cubicle switchboard packing: (if necessary as per switchboard composition) 1operatinglever 2endplates 1bagofS4endplatescrews: Packing DMVL-- A (1--cable version): 1 bag of inter---cubicle connections S1: drycableflanges, cable version 3 flange supports, cable version 1bagofscrews S7: earth busbars 6 tinned bars 2 bags of busbars distribution blocks u12 kv S2: or 2 bags of busbar fasteners 12kV S6: phase --- to --- phase insulators with 8O ringseals(onlyfor25ka version) Packing DMVL-- A (2--cable version): 1 bag of inter---cubicle connections S1: drycableflanges, cable version 3 flange supports, cable version 1bagofscrews double cable earthbusbars 6 tinned bars 2 bags of busbar distribution blocks u12 kv S2: or 2 bags of busbar fasteners 12kV S6: phase --- to --- phase insulators with 8O ringseals(onlyfor25ka version) AAV55927 revision : 02 7

9 overall dimensions/weight average weight of an equipped cubicle: 400kg L1 L2 L handling by slings The handling lugs are reserved solely for handling of SM6 cubicles C Schneider Electric A : HM12 screws and nuts B : Schneider Electric SWL = 400 KG CE D CMU =400 KG CE Schneider Electric CMU =400 KG CE SWL: safe working load WARNING A B C : In case of deformation of holes (ovalisation) replace the lugs. L 60 max L L = 1130 mm min. Without compartment or trunking. L = 750 mm min. With compartment or trunking. 8 AAV55927 revision : 02

10 handling by forks handling CAUTION Do not handle the cubicle from the control front plate. storage 70 C C AAV55927 revision : 02 9

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12 installation and operation recommendation ageing withstand of switchgear in an MV substation depends on 3 main factors: H The need for proper implementation of connections: the new cold slip---on or retractable technologies offer an ease of installation that promotes long---term withstand. Their design allows operation in polluted environments with harsh atmosphere. H Ventilation control: grid dimension must be appropriate to the power lost in the substation. These grids must be placed solely near the transformer to avoid circulation of air on the MV switchboard. H Incidence of the relative humidity factor: installation of heating resistors is essential in climates with a high degree of relative humidity and with large temperature differences. operation Our service centre is at your disposal at all times: H To carry out an installation diagnostic. H To propose if necessary appropriate servicing operations. H To propose maintenance contracts. H To propose adaptations. AAV55927 revision : 02 11

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14 installation instructions preparing the cubicle before assembling the switchboard Delivery status: --- circuit --- breaker open --- line disconnector in earth position screw + washer screw + washer + nylstop nut C Remove the front panel B by lifting it up and pulling it forwards. Remove the tab C. (screws cannot be re---used) B Unscrew the four fixing screws on the covers of the monitoring compartment D and remove the compartment. D E F F Remove the 2 ½ cross---members E on the monitoring compartment (cubicle without LV compartment) Remove the 2 parts F and F. (12 screws) G H H Remove the 2 parts G. (cubicle without LV compartment, 12 screws) Remove the 2 or 4 handling parts H. AAV55927 revision : 02 13

15 fitting the end plate Refer to the switchboard parcel manual, as per the upgrade of the new standard IEC assembling the switchboard bag of screws S1: (HM 6x16 screws) M K L screw + washer + nut P top view K L Fix the cubicles to one another. The remaining screws are provided for mounting the earth busbar. Bolt mounting direction: K :leftcubicle L : right cubicle M : join up the 2 cubicles HM6x60 screws to be slightly tightened Tightening torque: 6 Nm. Remove the wiring shield N. Fit the assembling screw P on the switchboard (caution with LV wires). Put back the wiring shield. N ground fastening (screws to be provided by the contractor according to civil engineering) ,3x12,3 Do not fit any fixing screws on the ground on the circuit--- breaker side AAV55927 revision : 02

16 installation of the switchboard in the substation 140 mm DMVL --- A DMVL --- A 21,5 à 100 mm 21,5 à 100mm Installation of the switchboard to the right of the wall. (minimum dimension to ensure proper operation of the device) Installation of the switchboard to the left of the wall. fitting the busbar after installation of the cubicles in their final position general Bags of accessories: S2: or S6: Tools: 1x1to50Nmtorquewrench. 1x1/ /8 reduction gear. 1x6 mm socket end piece. 1x6 mm male hexagon socket or 1 female hexagon socket. Version 12 KV S6: Mounting without field distributor. Version > 12 KV S2: Correct position of the field distributor Incorrect position, risk of damage. AAV55927 revision : 02 15

17 Top busbar of a DMVL --- A Note: the spacers must only be installed for version 25 ka and on the part of the busbar located between the line disconnector and the busbar compartment insulators. bar A Spacer cross---sectional view Install the two spacers so that they are centred on the part of the busbar. Fitoneachsideofthe phase --- to --- phase spacer two O ring seals A. DMVL --- A Busbar mounting. Tightening torque: 28 Nm. 16 AAV55927 revision : 02

18 screw + washer screw + washer + nylstop nut F F Put back the two front roofs. Put back the 2 parts F and F. fitting the earth busbar Bag of screws S1: The earth busbars are connected to one another (HM 8x30 screws). 2 ways of earthing the substation frames. AAV55927 revision : 02 17

19 access to the LV auxiliaries connection screw + washer A B C The cables at the connection terminal block are accessed via the openings A. B : own current protection relay of the statimax. type (for setting, refer to the relay manual). C : user connection terminal block. After connection, put back the two ½ cross---members on the monitoring compartment. (cubicle without LV compartment) But back the covers on the monitoring compartment. Connection of MV cables in a DMVL --- A (1 cable) bag of screws S7: AV Disassemble the plinth. (4 screws) Disassemble the bottom plates. Fit the cable flanges on 3 bottom plates 1, 2 and 3. HM6X16 screws. (the remaining screws are provided for cable flanging). 18 AAV55927 revision : 02

20 2 3 Note: plates 2 and 3 must be fixed as shown above. Fit the first bottom plate (phase L1) behind the cubicle. Install the grommet. Cubicle DMVL--A with EVOLIS circuit --- breaker. Connection of cable phase 1 Tightening torque: 50 Nm. Flangethefirstcableandfitthe second bottom plate. (HM8x50 screws) Mount phases L2 and L3 following the same instructions as phase L1. Fix the cable earthing braids to the earth busbar. AAV55927 revision : 02 19

21 Connection of MV cables in a DMVL --- A (2 cables) bag of screws: S7: AV Disassemble the plinth. (4 screws) Disassemble the bottom plates. Fit the cable flanges on 3 bottom plates 1, 2 and 3. HM6X16 screws. (the remaining screws are provided for cable flanging) 2 3 Note: plates 2 and 3 must be fixed as shown above. Fit the first bottom plate (phase L1) behind the cubicle. 20 AAV55927 revision : 02

22 Install the grommet. Cubicle DMVL--A with EVOLIS circuit --- breaker. Connection of cable phase 1. Tightening torque: 50 Nm. Flangethefirstcableandfitthe second bottom plate. (HM8x50 screws). Mount phases L2 and L3 following the same instructions as phase L1. Fix the cable earthing braids to the earth busbar. AAV55927 revision : 02 21

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24 commissioning and operating instructions checking prior to energisation Do not leave anything in the connection compartment. Putbackthefrontpanel. voltage presence VIPS: Voltage Presence Indicating System Incoming cubicle: On energisation of the upstream part of the installation, the voltage presence indicator lamps must light up. Outgoing cubicle: Once the line disconnector and then the circuit---breaker have been moved to the closed position, the voltage presence indicator lamps must light up. checking phase balance Note: the monitoring device is the same as that used by the RM6 equipment. Note: In event of monitoring between the old Voltage Presence Indicator and the new VPIS use the adapter, references FA Simplified type phase comparator. In phase balance: H the comparator lamp does not light up. H In phase unbalance: the comparator lamp lights up. AAV55927 revision : 02 23

25 position of line disconnector operating lever Position the lever as shown, for downward opening operations. Position the lever as shown, for upward closing operations. circuit --- breaker off --- load operations I O initial status: The line disconnector is in the open or earth position. The circuit---breaker is locked in the open position. B E 0 C Lock the lever entry E of the line disconnector with the wrench in B. Remove the wrench in B then place it in C. Release then charge the circuit --- breaker. (see the circuit--- breaker manual) I O I O O I Close the circuit---breaker by pressing the pushbutton I. Open the circuit--- breaker by pressing the pushbutton O. 24 AAV55927 revision : 02

26 I O 0 C B E Lock the circuit---breaker in the open position in C by pressing the pushbutton O. Remove the wrench in C and place it in B. Release the lever entry E ofthelinedisconnector. energisation of the downstream part of the installation initial status: The line disconnector is in the earth position. The circuit---breaker is locked in the open position. The front panel is in place. A E Movethelinedisconnectortothe open position using the operating lever. Note: for a DMVL--A, the downstream earthing switch opens simultaneously. Move the line disconnector to the closed position then lock the entry E of the line disconnector with the wrench in A. I O I O 0 O C Remove the wrench in A, placeit in C and release the circuit --- breaker. Charge the latter. (see the circuit--- breaker manual) Close the circuit---breaker by pressing on pushbutton I. The downstream part of the installation is energised. AAV55927 revision : 02 25

27 de---energisation of the downstream part of the installation I I initial status: The line disconnector is in the closed position. The circuit--- breaker is closed. O I O 0 C Open the circuit--- breaker by pressing the pushbutton O. Lock the circuit---breaker in the open position with the wrench in C by pressing the pushbutton O. A E Remove the wrench in C and place it in A. Release the lever entry E ofthelinedisconnector. Movethelinedisconnectortothe open position. Move the line disconnector to the earth position. The front panel can be removed. Note: for a DMVL--A, the downstream earthing switch closes simultaneously. 26 AAV55927 revision : 02

28 operating safety Operationimpossiblewhenthe circuit---breaker is closed. The front panel can only be removed or fitted when the line disconnector is in the earth position. Line disconnector in the open or closed position. It is impossible to remove the front panel. Once the front panel has been removed, you can move the line disconnector to the open position. However,youcannotmoveitto the closed position. padlocking devices From 1 to 3 Ø 8 mm padlocks per padlocking point. Padlocking the line disconnector in the earth position. Padlocking the line disconnector in the open position. Padlocking the line disconnector in the closed position. Padlocking the front panel (a single padlock). AAV55927 revision : 02 27

29 key --- locking (optional) H refer to the locking installation and operation manual no H for installation of a key--- lock on the circuit---breaker, refer to the relevant device manual. H if the key---lock option was not provided on ordering, contact the Schneider Electric group service centre. 28 AAV55927 revision : 02

30 maintenance instruction 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. AAV55927 revision : 02 29

31 fault / solution table H the voltage presence indicator does not light up H check the voltage presence indicator H check that the line disconnector and the circuit--- breaker are closed (for an outgoing cubicle) H check that the incoming cables are energised H the front panel does not open or cannot be placed H check that the line disconnector is in the earth position H impossible to move the line disconnector to the earth H check that the line disconnector is in the open position position H impossible to move the line disconnector to the closed H check that the line disconnector is in the open position position H impossible to operate the circuit---breaker H see circuit--- breaker manual H accidental manual closure of the downstream earthing disconnector arm H re---open the downstream earthing disconnector by operating the contact---holder arm, then re--- initialise the system using a screwdriver to insert the operating lever. options (consult us) H auxiliary contacts on disconnector. H monitoring compartment. H protection by statimax relay or by SEPAM programmable electronic unit. H H 1 to 3 voltage transformers. key --- locks. heating element. spare parts H voltagepresenceindicator. (for other actions, consult us: see the nearest Schneider Electric group service centre). spare parts and options H Voltagepresenceindicator. H CIT operating mechanism. H 48Vdc operating kit. H Fuses. (for other actions, consult us: see the Schneider Electric group service centre) 30 AAV55927 revision : 02

32 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 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 AAV55927 revision : 02 31

33 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). 32 AAV55927 revision : 02

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 AAV55927 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 : 19/05/2008