SM6 Anglais MV distribution factory built assemblies at your service instructions for use SM cubicle
foreword... 3 symbols and conventions... 3 as per iso 3864---2... contact the Schneider Electric service unit for diagnosis and advice 3 4 distribution rules... safety rules... 4 4 general description... 5 SM : disconnector cubicle... 5 handling instructions... 7 identifying the device... 7 list and number of bags and accessories... weight... 7 7 overall dimensions... handling using slings... 8 8 handling by forks... storage... 8 9 installation and operation recommendation... 11 installation instructions... 13 preparing the cubiclesprior to assembling the switchboard... fitting the end plate... 13 13 assembling the switchboard... fastening to the ground... 15 15 installing in the substation... fitting the busbar afterinstalling the cubicles... 16 16 reassembling the cubicle... fitting the earth busbar... 17 17 connecting MV cables... 18 start up instructions... 21 checking prior to switching on... operating the device with power off... 21 21 energising the HV incoming cables... voltage presence... 21 22 checking phase concordance... 22 cable test intervention... 22 operating instructions... 25 operations and visualisationof the status of the SM cubicle... padlocking... 25 26 keylocking... operating safety... 26 26 maintenance instructions... 27 preventive maintenance, cleaning instructions and power---up... 27 replacing a voltage indicator pack... table of anomalies/solutions... 28 28 spare parts... options... 28 28 recovery of SF6 gas at end of life... 29 7896687EN revision : 01 1
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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 3864---2 DANGER: failure to follow this instruction will result in death or serious injury. WARNING as per iso 3864---2 WARNING: failure to follow this instruction may result in death or serious injury. CAUTION as per iso 3864---2 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. 7896687EN revision : 01 3
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: www.schneider-- 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 7896687EN revision : 01
general description SM : disconnector cubicle 1 : monitoring compartment 2 : busbar compartment 3 : control compartment 4 : switchgear compartment: disconnector and earthing switch 5 : cable connection compartment A : busbar connecting pad B : voltage presence indicator C : lower field deflector and cable connection D : capacitive divider E : cable connection inspection ports F : front panel 2 A 4 C D 5 1 B 3 F E 7896687EN revision : 01 5
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handling instructions identifying the device A D2 D3 B D1 C A : rating plate (option) B : characteristics and description C :firmplate serial number D1: riveted on the control cover D2: stuck behind the monitoring cover D3: stuck on the frame column list and number of bags and accessories H switchboard packing list (optional according to switchboard composition) --- operating lever --- 2 end plates --- 1 bag of end plate bolts S4: 3729744 --- positioning bracket H cubicle packing list 1 bag of busbar distribution blocks >12kV S2: 3729742 or 1 bag of busbar fasteners <12kV S6: 3729746 1 bag of bottom plate fasteners S3: 3729741 1 bag of inter---cubicle connections S1: 3729745 1 earth busbar 3 bottom plates 1busbar 3cablebushings 3 flange supports + flanges weight H SM : 120kg Do not handle the cubicle using the control front plate. 7896687EN revision : 01 7
overall dimensions 47 20 1600 1630 375 870 940 handling using slings L 60 MAXI L = 920 mm mini. handling by forks 8 7896687EN revision : 01
storage 7896687EN revision : 01 9
70 C --- 40 C 10 7896687EN revision : 01
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 We strongly recommend that you carry out at regular intervals (at least roughly every 2 years) afew operating cycles on the switching devices. Outside normal operating conditions (between -- 5 C and 40 C, absence of dust, corrosive gas, etc.), we recommend that you contact our Groupe Schneider Electric service centre in order to examine the measures to be taken to ensure proper installation 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. 7896687EN revision : 01 11
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installation instructions preparing the cubicles priortoassembling the switchboard Delivery state: Earthing switch in closed position :bolt+washer : bolt+washer+nylstop nut A D C B Remove the front panel A, then pallet B. Remove the cover from the monitoring compartment C and the eye bolts D. E F Remove part E. (4bolts) Remove part F. (cubicle without LV box). fitting the end plate prèparation (only if the cubicle is at the end of the switchboard) bag of S4 bolts: 3730427 (HM 6x12 bolts only). Mount 10 cage nuts on the cubicle. (see assembly overleaf). 7896687EN revision : 01 13
1 2 1 insert the cage nut from outside the cubicle in the specially provided rectangular hole. 2 topple the cage nut inside the cubicle. 3 4 3 push the cage nut in the direction of the arrow so as to place the upper part of the cage behind the plate. 4 nut correctly placed. fitting the end plate Instructions are given for the left hand side of the switchboard. Thesameappliesfortherighthand side. :screw+washer : screw+washer+nylstop nut Position the end plate. Place the screws onthecagenuts. Mount the screws with the nylstop nuts. Mounting direction of the screw and nylstop nut. (nut inside the cubicle) Fixer la 2 ème tôle d extrémité suivantlemêmeprincipe. (pas d équerre de positionnement) 14 7896687EN revision : 01
assembling the switchboard bag of bolts S1: 3729745 (HM6x16 bolts only) : screw+washers+nut M K L upper view 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. fastening to the ground (bolts to be provided by the contractor depending on the installation layout) 840 50 740 50 12,3x12,3 15 345 375 15 7896687EN revision : 01 15
installing in the substation 100 mm* 100 mm* SM SM 20 mm 20 mm installing the switchboard to the right of the wall* (mini dimension to ensure proper operation of device.) installing the switchboard to the left of the wall. fitting the busbar after installing the cubicles in their final position bag of accessories S2: 3729742 or S6: 3729746 tools: 1 torque wrench (10 to 50 Nm) 11/4---3/8reducer1x6mm socket sleeve 1 6 mm hexagon male socket or 1 hexagon female socket Busbar connection Tightning torque: 28 Nm. Version < 12 kv S6: 3729746 mounting without field distribution block. Version > 12 kv S2: 3729742 correct position of field distribution block. Incorrect position, risk of damage. 16 7896687EN revision : 01
reassembling the cubicle F E Reassemble part F of the roof. (nuts inside the cubicle) Reassemble part E. G Reassemble cover G of the monitoring compartment aligning it according to marking. fitting the earth busbar the earth busbars are connected together. (HM8 x 35 screws) 2waysofearthing the substation frames. 7896687EN revision : 01 17
connecting MV cables Install the cable straps. H bag of bolts S3: 3729741 HM 6x16 screws. Remaining bolts are intended for flanging the cables. Install the cable bushing. L1 Connect the cable on phase L1. The bolts remain fixed in place. Use a torque wrench and a 19 mm socket to immobilize the cable. Tightening torque: 50 Nm. 1 2 Fix the bottom plate and then flange the cable.(hm 8x50 screws) Mount the bottom plate 2 at the back of the cubicle. 18 7896687EN revision : 01
K K AV Position K openings as shown. H Mount L2 and L3 phases following the same instructions as for L1 phase. 2 ways of connecting the cable earthing braids and the toroids. (the bolts remain fixed in place) 7896687EN revision : 01 19
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start up instructions checking prior to switching on H leave nothing in the connection compartment H check on all phases that the field deflector lid is properly closed Reassemble the front panel. operating the device with power off refertothechapter: operating instructions Carry out a few operations on the disconnector and earthing switch. energising the HV incoming cables The devices must be in the open position. (see: operating instructions). 7896687EN revision : 01 21
voltage presence When the cables are energised, the lamps of the voltage presence indicator must come on. checking phase concordance L1 L2 L3 L1 L2 L3 Phases are concordant, the lamp does not come on. Phases are not concordant, the lamp comes on. cable test intervention Phase detection or current injection for fault tracking. H close the earthing switch. H open the front panel. H place the earthing pad. B L1 A A Secure the vice A against the earthing rod and connect the earthing device to the 3 shafts of the lugs of cables B. A bottom view of the securing of vice A. Correct mounting. 22 7896687EN revision : 01
Must not be assembled as shown. Earthing switch reopening for access to conductors. 7896687EN revision : 01 23
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operating instructions operations and visualisation of the status of the SM cubicle Position the lever as shown for downwards opening operations. Position the lever as shown for upwards closing operations. Opening the earthing switch. Closing the disconnector. Opening the disconnector. Closing the earthing switch. 7896687EN revision : 01 25
padlocking Padlock the switch in the open or closed position by 1, 2 or 3 padlocks (diameter = 8 mm). keylocking Refer to the keylocking installation and operation manual n 7896785. operating safety The front panel can only be withdrawn or fitted when the earthing switch is closed. 26 7896687EN revision : 01
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 --- 5 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 --- 5 C or greater than 40 C) consult the nearest Schneider Electric service centre. 7896687EN revision : 01 27
replacing a voltage indicator pack Manually extract the voltage indicator: the switchboard may be on. table of anomalies/solutions the voltage presence indicator does not come on the front panel does not open or cannot be fitted check that the earthing switch the earthing switch cannot be not operated the earthing switch cannot be operated check that the incoming cables are energised check the lamp box check that the disconnector is closed check that the disconnector is closed check that the disconnector is open check that the earthing switch is open spare parts H voltagepresenceindicator (for other interventions, consult us: seegroupeschneiderelectric services) options (consult us) H H H H keylocking auxiliary contacts heating element phase concordance unit 28 7896687EN revision : 01
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--61634 and according to the following instructions. The gas must be treated in compliance with IEC--60480. 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 7896687EN revision : 01 29
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). 30 7896687EN revision : 01
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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--- 92500 Rueil--- Malmaison (France) Tel:+33(0)141298500 http://www.schneider--- electric.com 7896687EN 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 : 20/07/2007