SM6. instructions for use. IMB cubicle without earthing switch. MV distribution factory built assemblies at your service. Anglais

Transcription

1 SM6 Anglais MV distribution factory built assemblies at your service instructions for use IMB cubicle without earthing switch

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 IMB cubicle without earthing switch bottom right connection... 5 IMB cubicle without earthing switch bottom left connection... 5 handling instructions... 7 cubicle identification... accessories list weight... dimensions handling using slings... handling using a forklift stockage... 9 installation and operation recommendation installation instructions preparing the cubicles for switchboard assembly assembling the switchboard... securing to the floor layout in the substation... fitting the busbars after installing the cubicles cable entry for connection of low voltage auxiliaries... fitting the earth bars start---up instructions checks before energizing operating test before energizing energizing the bottom busbars operating instructions manual operation and position indication discharging a CI2 operating mechanism... padlocking keyed interlocks operating safety maintenance instructions preventive maintenance, cleaning instructions and power---up... replacing a voltage indicator block trouble--- shooting chart... options 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 IMB cubicle without earthing switch bottom right connection 1 : low voltage compartment 2 : top busbar compartment 3 :operatingmechanism compartment 4 : switchgear compartment: switch 5 : bottom busbar connection compartment A : top busbar connection pads B : voltage indicator C : bottom field distributor and busbar connection D : capacitive divider E : inspection windows F : front panel 2 A 4 5 C 1 3 B F D E IMB cubicle without earthing switch bottom left connection 1 : low voltage compartment 2 : top busbar compartment 3 :operatingmechanism compartment 4 : switchgear compartment: switch 5 : bottom busbar connection compartment A : top busbar connection pads B : voltage indicator C : bottom field distributor and busbar connection D : capacitive divider E : inspection windows F : front panel 2 A 4 5 C D 1 3 B F E EN revision : 01 5

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8 handling instructions cubicle identification A D3 D2 B E D1 6 C F A :indicatorplate (for customer use). B : characteristics and designation C : manufacturer s name plate E : motor mechanism (option) plate F : danger symbol for electrical hazards serial number D1: riveted to the front plate of the operating mechanism compartment D2: glued to the back of the front plate of the low voltage compartment D3: glued to the upright of the frame accessories list accessories provided with the cubicle weight 130 kg switchboard accessories : (may vary depending on the cubicles making up the switchboard) 1operatinglever 2 end panels 1 bag of nuts and bolts for the end panels 1 wall clearance angle---iron cubicle accessories : 2 bags of field distributors for busbars >12kV(bagS2 : ) or 2 bags of fastening accessories for busbars ±12 kv (bag S6 : ) 1earthbar 1setofbusbars 1 bag of intercubicle connection accessories (bag S1 : ) Never attempt to move the cubicle by exerting force on the control panel EN revision : 01 7

9 dimensions handling using slings L L 60 MAXI 60 MAXI L = 375 mm mini. Whith low voltage enclosure and gutter. L = 920 mm mini. Whithout low voltage enclosure and gutter. handling using a forklift EN revision : 01

10 stockage 70 C C EN revision : 01 9

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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 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 service centre in order to examine themeasurestobetakento 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 EN revision : 01 11

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14 installation instructions preparing the cubicles for switchboard assembly Upon delivery : Switch closed. Front panel bolted. :bolt+washer : bolt+washer+nylstop nut : nut used to secure the front panel. B Unscrew the nut used to secure the front panel. Remove the front panel A and then the skids B. (the bolts cannot be re---used) A E D C Remove the low voltage compartment front plate C, the lifting rings D and the cross---members E. G H Remove top plate G (4 bolts). Remove top plate H. (cubicle without additional LV enclosure) assembling the switchboard nuts and bolts in bag S1: (HM6 x 16 bolts only) : screw+washer+ nut K L Fix the cubicles together. Bolt mounting direction K : lett--- hand cubicle L : right--- hand cubicle EN revision : 01 13

15 securing to the floor ( nuts and bolts not included ) ,3x12,3 layout in the substation 100mm* 100mm* IMB IMB 20mm 20mm Switchboardinstalledtotheright of a wall. (*) minimum clearance for trouble--- free operation. Switchboard installed to the left of a wall. fitting the busbars after installing the cubicles in their operating location tools: 1 torquewrench(1to50nm.) 1 1/4---3/8 adapter 1 6 mm extension fitting 1 6 mm male hexagonal (Allan) fitting or 1 female hexagonal socket. Note: the example is for an IBM with a bottom right outgoing line. IMB Top busbar connection. Tightening torque : 28 Nm. IMB GBM Bottom busbar connection. Tightening torque : 28 Nm EN revision : 01

16 Version ±12 kv bag S6: mounted without field distributors Version > 12 kv bag S2: Field distributor positioned correctly. Field distributor positioned incorrectly (risk of damage). G H Refit top plate H (nuts inside the cubicle). Refit top plate G EN revision : 01 15

17 cable entry for connection of low voltage auxiliaries Note: the LV auxiliary wiring diagramsaregluedtotheinsideof the LV compartment. A Cable entry to the terminal block via holes A. Remove the knock---outs. Cubicle equipped with an LV cable trough (option). Proceed in the same manner after removing the trough top plate. Refit the LV compartment front plate, respecting the indications. fitting the earth bars Connect the earth bars together (HM8 x 35 mm bolts). Connection to substation earth in either of these two ways EN revision : 01

18 start-- up instructions checks before energizing H Check that nothing has been left inadvertently in the connection compartment. Refit the front panel. Refit the nylstop screw on the front panel. operating test before energizing see operating instructions section Operate the switch several times. energizing the bottom busbars As soon as the busbars have been energized, The voltage indicator lamps should go on EN revision : 01 17

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20 operating instructions manual operation and position indication Position the lever as indicated for downward (opening) operations. Position the lever as indicated for upward (closing) operations. J CIT operating mechanism front plate. CI2 operating mechanism front plate J : charge d/uncharged indication Closing the switch (CIT operating mechanism). Charging the spring (CI2 operating mechanism) EN revision : 01 19

21 Closing the switch (CI2 operating mechanism). Opening the switch (CIT operating mechanism). Opening the switch (CI2 operating mechanism). 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 ATTENTION : this operation can damage the operating mechanism. Perform only when strictly necessary EN revision : 01

22 padlocking Padlocking of motor mechanism (option). Lock out the motor mechanism using a padlock before opening the switch. The motor mechanism can be locked in or out using the padlocks. Padlock the switch in open or closed position using 1, 2 or 3 padlocks (Ø 8 mm). Padlocking the front panel. keyed interlocks See the keyed interlock installation and operating instructions. operating safety To remove the front panel, always open the switch before removing the nut used to secure the panel. -- the switch must also be open with the front panel is refitted. -- make sure to replace the nut used to secure the front panel. If a CI2 motor mechanism is installed, lock out the motor mechanism before opening the switch EN revision : 01 21

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24 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 : 01 23

25 replacing a voltage indicator block Pull out the voltage indicator block (the switchboard can remain energized). trouble---shooting chart IMB cubicle H voltage indicator not illuminated H check the voltage indicator block H check that the bottom busbars are live H front panel cannot be opened or closed H check that the nut used tosecure the front panel has been removed and that the switch is open H switch cannot be operated H check that the switch is open EN revision : 01

26 motor mechanism (option) H electrical operation impossible H check the LV fuses (CIP2) H H (*) manual operation impossible following an electrical closing cycle for a voltage level less than ---15% rated value (*) insertion of lever impossible following an electrical closing cycle for a voltage level less than ---15% rated value (*)Operations is guaranteed for rated voltage ± 15% H H H H H check electrical interlocks S13 (lever insertion) and S28 (presence of front panel) check the configuration of the CIP1 subassembly (see diagram) use the operating lever to apply a torque in the closing direction until the end position is reached; manual operation should now be possible. if possible, carry out an electrical operation, using a backup power source if necessary to allow insertion of the operating lever push the back of the switch shaft in the closing direction using a large screwdriver (for safety reasons, remember to first lock out the electrical operating mechanism if necessary, push up and hold the locking blade that actuates contact S13) spare parts H voltage indicator (for other parts, please consult us: see Groupe Schneider Electric services). options (please consult us) H keyed interlocks H release coils H auxiliary contacts H motor mechanism H 50 W heating element H enlarged LV compartment and/or additional LV enclosure EN revision : 01 25

27 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

28 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 27

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30 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