Eaton SVS/12 User Manual Download Page 125

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SVS/12

994.530 G01 02

125

7. Earthing equipment for earthing the cable of a 12 - 24

kV load-break switch/fuse panel:



three earthing pins with earth contact and earthing

cable with clamps



an operating rod

Technical data

Rated voltage (IEC)

(kV)

17.5

Rated short-time withstand current for 1 sec

(kA)

Rated peak withstand current

(kA)

Length of earthing pin (without operating rod)

(mm)

530

680

Earthing cable cross-section

(mm

)

8. Earthing equipment for earthing the cable of a 12 kV

load-break switch/fuse panel:



three earthing pins with earth contact and earthing

cable with clamps



an operating rod

Technical data

Rated voltage (IEC)

(kV)

Rated short-time withstand current for 1 sec

(kA)

Rated peak withstand current

(kA)

Length of earthing pin (without operating rod)

(mm)

530

Earthing cable cross-section

(mm

)

Summary of Contents for SVS/12

Page 1: ...el 31 74 246 91 11 fax 31 74 246 44 44 e mail holec info eaton com internet www eatonelectrical nl in the event of failure Eaton Electrical Services Systems tel 31 74 246 68 88 Operations consisting o...

Page 2: ...Administrative data Issue number G01 02 Date of issue 10 06 2010 Language English Checked by Position Product Manager Name Bert ter Hedde Date 10 06 2010 Initials...

Page 3: ...YSTEM DESCRIPTION 13 2 1 The system 13 2 1 1 Panel types 630 A 420 mm wide 13 1 1 2 Panel types 1250 A 630 mm wide 15 2 2 Description of panel types 630 A 17 2 2 1 Circuit breaker panel 17 2 2 2 Load...

Page 4: ...Al by means of grease filled cable boxes 50 3 3 6 Connection of paper insulated lead covered cables up to 240 mm 2 Cu or Al by means of grease filled cable boxes with soldering gland 53 3 3 7 Connecti...

Page 5: ...1 4 4 1 Testing the cable via the 17 5 kV cable terminal block 630 A and 1250 A panels 111 4 4 2 Testing the cable using right angle plugs 630 A and 1250 A panels 112 5 SYSTEM COMMISIONING AND DECOMMI...

Page 6: ...nical interlocks Thanks to built in mechanical interlocks activities such as earthing of cables and changing of fuses can only be carried out in a safe manner The mechanical interlocks also prevent un...

Page 7: ...ny action without knowing what effect it will have Further information regarding chapters 3 to 7 is given below Chapter 3 Setting up the system The manual assumes that the installation is assembled an...

Page 8: ...erations Continuous voltage indication Mechanical interlocks protect access to the cable connections for changing fuses and floor contacts Environment friendly materials A 2 User friendly Uniform and...

Page 9: ...ure this can be done safely Before removing safety measures put in place in connection with the work make sure that the work has been completed and finished in all the appropriate places and that all...

Page 10: ...e items into a book He must ensure that all authorised personnel are aware of the existence and contents of this book A 2 Operational instructions Operational instructions are system specific instruct...

Page 11: ...complete type plate is made up of a main type plate with supplementary type plates if required The main type plate is headed with the Eaton logo and address Main type plate Supplementary type plate fo...

Page 12: ...ore there is no legal requirement to wear ear protection Nevertheless personnel who carry out switching operations are strongly advised to wear ear protection such as ear plugs or ear defenders 1 4 3...

Page 13: ...system 2 1 1 Panel types 630 A 420 mm wide Load break switch panel Circuit breaker panel Bus section panel with load break switch Load break switch fuse panel maximum 12 24 kV Bus section panel with c...

Page 14: ...break switch or circuit breaker panel 2 Control panel of bus section panel 3 Control panel of load break switch fuse panel 4 Cable protection cover 5 Fuse protection cover 6 Transformer cable protecti...

Page 15: ...S 12 994 530 G01 02 15 1 1 2 Panel types 1250 A 630 mm wide Voltage metering panel Bus section panel 1260 mm wide Busbar connection panel Circuit breaker panel Busbar connection panel with disconnecto...

Page 16: ...g various panel types 1250 A 630 mm wide 1 Control panel of circuit breaker panel 2 Control panel of bus section panel 3 Cable protection cover 4 Type plate per panel inside door 5 Instrument compartm...

Page 17: ...nism a control panel Options The following options are available as standard auxiliary contacts for circuit breaker and disconnector electrical opening and closing of the circuit breaker cable side vo...

Page 18: ...ntry ports for Eaton Magnefix cable boxes 12 kV figure 3 three terminal blocks for cable socket connection 12 kV for one cable per phase see chapter 2 3 1 figure 3 an operating mechanism a control pan...

Page 19: ...bles directly under the fuses an operating mechanism a control panel Options The following options are available as standard 12 kV version auxiliary contacts for load break switch and disconnector aux...

Page 20: ...two cables per phase figure 2 a terminal block with locked cable entry ports for Eaton Magnefix cable boxes 12 kV figure 3 three terminal blocks for cable socket connection 12 kV for one cable per pha...

Page 21: ...electrical opening and closing of load break switch secondary instrument compartment current transformers secondary equipment Applications Interruption between the supply section of the electric utili...

Page 22: ...insulated current transformers equipped with toroid core with secondary windings Options Secondary instrument compartment Secondary equipment protection relays voltmeters and ammeters Applications Cu...

Page 23: ...socket connection for one cable per phase figure 3 three terminal blocks for cable socket connection for two cables per phase figure 4 an operating mechanism a control panel Options The following opt...

Page 24: ...cones for two cables per phase figure 2 three terminal blocks for cable socket connection for one cable per phase figure 3 three terminal blocks for cable socket connection for two cables per phase f...

Page 25: ...nections instead of cable connections an operating mechanism a control panel Options The following options are available as standard auxiliary contacts for circuit breaker and disconnector electrical...

Page 26: ...in such a way as to ensure that no spark voltages can develop at the connections this makes primary fuses unnecessary earthed or insulated primary star point fuses or installation circuit breakers on...

Page 27: ...be provided on the access door of the cable compartment This means that the door can only be opened in the earthing position In that case the load break switch can no longer be locked to prevent open...

Page 28: ...n be provided on the access door of the cable compartment This means that the door can only be opened in the earthing position Bus section panel On a bus section panel the circuit breaker can be close...

Page 29: ...stand current 1 s 2 5 s1 kA 20 20 16 Load break switch fuses Rated normal current3 A 61 57 61 36 Rated breaking current A 630 630 630 Rated short circuit making current kA 50 50 40 Fuses in conformity...

Page 30: ...panels 1 without instrument compartment with instrument compartment 600 mm high with instrument compartment 400 mm high Panel width mm 420 420 420 Panel depth mm 1110 1110 1110 Panel height mm 1350 19...

Page 31: ...rent A 1250 1250 1250 Rated short time withstand current 1 5 s 2 5 s1 kA 25 20 25 20 25 20 Rated peak withstand current kA 63 50 63 50 63 50 Circuit breaker Rated normal current A 1250 1250 1250 Rated...

Page 32: ...partment 600 mm high with instrument compartment 400 mm high Panel width mm 630 630 630 Panel depth mm 1110 1110 1110 Panel height mm 1350 1950 1750 Weight per panel kg approx 300 approx 325 approx 32...

Page 33: ...portant to take into account the turning direction of doors doors that are designed to be closed must not be capable of blocking each other The height must be measured from the floor or from the platf...

Page 34: ...l the opening between the switchroom and the cable cellar using for example polyurethane foam after proper support has been provided The polyurethane foam must have a closed cellular structure 3 1 4 V...

Page 35: ...allation must be transported in the operating position or earthing position see chapter 2 2 1 3 2 2 Transport instructions The user must follow the supplier s instructions Lifting Create safe working...

Page 36: ...pacers may be used to fill space between the foundation frame and the floor 4 Fasten the foundation frame with fixing bolts M10 Tighten the bolts with a torque of 15 Nm 5 Connect the earth bar to the...

Page 37: ...nd D Panel equipped with connection block with locked cable access ports for cable socket con nections Grease filled end seals for paper lead cable maximum 70 mm2 Cu See chapter 3 3 4 maximum 150 mm2...

Page 38: ...moulded resin safety device holders with gaskets and cable rubber core bushes Cu or Al Direct connection of single core synthetic cables maximum50 mm2 Cu or Al 12 kV 12 17 5 24 kV LOAD SWITCH SAFETY P...

Page 39: ...curely fastened to the panel also in case of a short circuit current 3 3 1 Connection of plastic insulated cables with plugs to a 12 24 kV load break switch or circuit breaker panel General For connec...

Page 40: ...the cable with the cable blocks For wood drill a hole depending on the cable diameter in the cable block ensure that a 4 mm gap remains between the two clamping halves to allow fixing of the cable For...

Page 41: ...s and the cable core bushes are correctly sized for the cable to be connected The following cable data are important in this respect the diameter across the primary core insulation after removal of th...

Page 42: ...ith a groove on the cable core bushes Connecting cables for Eaton and non Eaton cables 4 Lead the three cables into the installation via the underside from the cellar 5 Make a hole suitable for the ca...

Page 43: ...n the sleeve and the moulded resin and afterwards pull this thread out figure 7 NOTE These sleeves are always coded as sleeve no 1 The other sleeves for the cable connection have a different code depe...

Page 44: ...for the non cable side Three hexagon socket head screws M8 x 25 with conical spring washers and plain washers Fitting the adapter 1 Thoroughly clean the connection point on the cable side and the ins...

Page 45: ...s of the manufacturer concerned 3 Fasten the cable to the frame with a wooden terminal block or with a cable clamp figure 3 Ensure that the bending radius of the cable is at least that specified by th...

Page 46: ...figure 1 A small cable box a for core cross sectional areas up to 70 mm2 or Two protection covers c Three cable core clamps d One cable block e One hose clip f Polyethylene tape Procedure 1 Remove th...

Page 47: ...ter of the cable box Make sure that the upper side of the tape is flush with that of the lead sheath indicated by arrow Smooth out any wrinkles 6 Make a hole suitable for the cable diameter in the gro...

Page 48: ...the support of the cable block 11 Seal the openings of the cable box to prevent intrusion of dirt 12 Cut the cable cores 2 to 3 mm below the cast resin insulation figure 7 Remove the paper insulation...

Page 49: ...ter some time 15 Hang a double folded nylon thread over the edge of each opening in the cable box with the ends hanging inside see figure 10 Now slide the cable box completely on to the cast resin ins...

Page 50: ...12 kV connection pins are directly below the fuse holders Required components For cables with a copper core figures 1 and 2 a large cable box b two protection covers c three cable core clamps d each c...

Page 51: ...et head screws 4 Seal the openings of the cable box to prevent intrusion of dirt 5 Shorten the cable cores so that all three of them fit into the recesses in the connecting pieces 6 Position the cable...

Page 52: ...st resin insulation 8 Fit the protection cover on the right side and secure it Make sure that the clamping edge of the cable box adequately rests on the bearing face of the protection cover see figure...

Page 53: ...s For cables with a copper core figures 1 and 2 one cable box a depending on the core diameter two protection covers c three cable core clamps d1 for core diameters 70 mm2 d2 for core diameters 70 mm2...

Page 54: ...nderside of the gland bush resulting in a hole whose inside diameter equals the diameter d measured across the lead sheath 6 Slide the gland bush over the lead sheath see figure 3 7 Solder the gland b...

Page 55: ...actly in line with the centre of the cable box Firmly tighten the cable clamp 13 For cables with an aluminium core If the crimp cable clamps have been fitted fix them in accordance with the instructio...

Page 56: ...d1 for core diameters 70 mm2 d2 for core diameters 70 mm2 comprising one connecting piece one gland and two washers with hexagon socket head screws one cable block e two hose clips f one plastic entr...

Page 57: ...ke a hole suitable for the cable diameter in the grommet Slide the grommet over the cable 5 Saw off the plastic entry bushing in accordance with the diameter d measured across the lead sheath Take int...

Page 58: ...rrow Smooth out any wrinkles 9 Slide the cable box on to the cable terminal block of the panel Pull the cable next to the cable box until the polyethylene tape protrudes about 15 mm beneath the plasti...

Page 59: ...f the cable box Firmly tighten the cable clamp 14 Depending on the core diameter follow the procedure described in chapter 3 3 4 steps 9 14 or chapter 3 3 5 steps 2 8 15 Firmly clamp the plastic entry...

Page 60: ...ith filling tube and valve d Filling hose with hose clip shut off ring and connector nipple Procedure 1 Heat the can to a temperature not exceeding 100 C while stirring At this temperature the grease...

Page 61: ...tion continue pumping steadily until the cable box has expanded by approximately 2 cm Wait for the grease to come out of one of the spigots and then pull away the nylon thread Repeat this for the othe...

Page 62: ...ing and push it into the opening of the cable box while making a circular movement Make sure that the edge snaps behind the wall of the cable box see figure 7 13 Fit the nylon locking pin There must n...

Page 63: ...ction pins are directly below the fuse holders NOTE The termination of the cable cores and the splitting point must comply with the cable manufacturer s instructions If the diameter of the guide cones...

Page 64: ...Three cable core clamps f Cable block g Procedure 1 Remove the floor plate with the rubber grommet 2 Pull the cable upwards and fasten it see figure 3 There are two ways of doing this depending on th...

Page 65: ...e 4 fasten the cable to the cable block drill 3 holes in the cable block depending on the cable diameter with their centres 54 mm apart ensure that a 4 mm gap remains between the two clamping halves t...

Page 66: ...the guide cone is situated in figure 1A or below figure 1B the insulating conduit 7 Insert the rubber sleeves b previously greased with silicone grease upwards into the feed opening of the insulating...

Page 67: ...oth protection covers d and secure them Make sure that the conduits adequately rest on the bearing faces of the protection covers see figure 7 11 Fit the sealing plugs 12 Secure the floor plate Place...

Page 68: ...n pins are directly below the fuse holders NOTE The termination of the cable cores and the splitting point must comply with the cable manufacturer s instructions If the diameter of the guide cones e i...

Page 69: ...Cable block g 2 Procedure 1 Remove the floor plate with the rubber grommet 2 Pull the cable up and fasten it There are two ways of doing this depending on the type of cable namely 3 core cable 3x1 co...

Page 70: ...Fasten the cable to the wooden block h drill 3 holes in the cable block depending on the cable diameter with their centres 54 mm apart ensure that a 4 mm gap remains between the two clamping halves t...

Page 71: ...the sealing plugs back to their normal position 6 Fit the sealing plugs c on the cable see figure 5 The assembly sequence depends on whether the guide cone is situated in or below the insulating cond...

Page 72: ...de the conduits over the cores see figure 7 13 Position the cable cores in the recesses in the connecting pieces Fit the glands on to the core ends in the recesses in the connecting pieces and slide t...

Page 73: ...heck that the flattened sides of the washers around the insulating conduits abut 15 Fit both protection covers d and secure them Make sure that the conduits adequately rest on the bearing faces of the...

Page 74: ...2 Clean the outside of the non cable side connection of the fuse box and lightly grease it using the Vaseline supplied 3 Fit the three sleeves and lightly grease the outside of the sleeves 4 Clean th...

Page 75: ...s on 630 A panels Panel equipped with Terminal blocks with locked cable access ports for Eaton flags Dry end seal for synthetic cables max 630 mm2 Cu or Al 1 cable per phase 2 cables per phase Panel e...

Page 76: ...itable supports must be ordered from Eaton This is important so as to guarantee that cables are securely fastened to the panel also in case of a short circuit current 3 4 1 Connection of plastic insul...

Page 77: ...erned Use the specified tightening torques 5 Fix the cable with the cable blocks For wood drill a hole depending on the cable diameter in the cable block ensure that a 4 mm gap remains between the two...

Page 78: ...ree terminal strips moulded into the cast resin insulation NOTE The termination of the cable cores and the splitting point must comply with the cable manufacturer s instructions Crimp cable sockets ar...

Page 79: ...low fixing of the cable For plastic select the appropriate plastic cable clamp for the cable diameter 4 Terminate the cable according to the manufacturer s instructions For the available space see fig...

Page 80: ...ree greased sleeves b on the terminal blocks 11 Fix the cable sockets on the terminal blocks 12 Slide the assembled insulating conduits over the cast resin insulation of the terminal blocks 13 Fit the...

Page 81: ...rating conditions must not be different from the conditions described in chapter 3 1 1 4 1 3 Personal protection equipment No personal protection equipment is necessary under normal operating conditio...

Page 82: ...of load break switch or circuit breaker 3 Operating shaft of disconnector 4 Position indicator of disconnector 5 Switch on button of load break switch or circuit breaker optional 6 Switch off button...

Page 83: ...ndicator of load break switch or circuit breaker 2 Operating shaft of load break switch or circuit breaker 3 Operating shaft of disconnector 4 Position indicator of disconnector 6 Switch off button of...

Page 84: ...disconnector 4 Position indicator of disconnector 5 Switch on knob of circuit breaker 6 Switch off knob of circuit breaker 7 Selector left circuit breaker centre remote control right disconnector 8 Vo...

Page 85: ...ations the selector 7 must be set to the central position 1 With auxiliary voltage connected the spring tensioning motor tensions the closing springs 2 Check by the position indicator 4 that the disco...

Page 86: ...an optionally be equipped with a key interlock to prevent unwanted switching on Mechanical switching off 1 Firmly press the switch off button 5 The position indicator 1 should now indicate the off pos...

Page 87: ...or circuit breaker is closed the cable is also connected to the busbar system See figure 1 Earthing position In the earthing position the disconnector is connected to the earth busbar See arrow in fig...

Page 88: ...tion 2 Turn the load break switch or circuit breaker off see chapter 4 2 2 3 Press the remotely positioned button 12 to switch to the earthing position The position indicator 4 must indicate the earth...

Page 89: ...he circuit breaker is closed the cable is also connected to the busbar system See figure 1 Earthing position In the earthing position the disconnector is connected to the earth busbar See arrow in fig...

Page 90: ...n 2 Switch off the circuit breaker see chapter 4 2 3 3 Press the remotely positioned button 12 to switch to the earthing position The position indicator 4 must indicate the earthing position Mechanica...

Page 91: ...tion see chapter 4 3 3 Lock the switches against unintentional switching off using a padlock according to the procedures in chapter 4 2 7 4 Set the right disconnector OR see figure 1 to the earthing p...

Page 92: ...earthing position Opening CANNOT be prevented in the operating position Locking in intermediate position by means of a scissor type interlock 630 A panels As an option a scissor type interlock with pa...

Page 93: ...ectrically Remove the padlock to overcome the interlock The load break switch or circuit breaker can then be turned off see chapter 4 2 2 NOTE Remove the warning sign as well Locking in intermediate p...

Page 94: ...pulled out In this case the load break switch can no longer be locked to prevent switching off in the operating position Procedure Fundamental principle The cable is earthed disconnector in earthing...

Page 95: ...e red when the test and reset button is pressed The signal emitters should turn black when the test and reset button is pressed again If the indicator is not working properly the user should contact E...

Page 96: ...cables are earthed and the transformers isolated on the secondary side see General 2 Remove the protection cover 3 Remove the 3 end caps and the 3 sleeves from the epoxy resin insulated connection An...

Page 97: ...s must be removed or the automatic cut outs turned off so that feedback is impossible Disconnection 1 Make sure the cables are earthed and the transformers isolated on the secondary side see General 2...

Page 98: ...de thread 4 Fit the protection cover 5 Fit the fuses or switch the automatic fuses on the secondary side back on Now the panel can be put into operation again see chapter 4 2 2 4 2 10 Opening and clos...

Page 99: ...tor to the earthing position see chapter 4 2 4 4 2 5 3 Check the operation of the voltage indicator with the tester see appendix 9 2 4 Using the voltage indicator check that the earthing cable is not...

Page 100: ...the high voltage fuses see chapter 4 3 6 In this situation the disconnector is in the earthed position and the load break switch cannot be turned on 2 Remove the lower protection cover using the key 3...

Page 101: ...he operating rod remove the earthing pins from the socket contacts figure 1 2 Remove the earthing cable clamps from the earth busbar 3 Secure the lower protection cover again using the key NOTE If the...

Page 102: ...he high voltage fuses see chapter 4 3 6 In this situation the disconnector is in the earthed position and the load break switch cannot be turned on 2 Remove the lower protection cover using the key 3...

Page 103: ...g rod remove the earthing pins one by one from the socket contacts figure 1 2 Remove the earthing cable clamps from the earth busbar 3 Secure the lower protection cover again using the key NOTE If the...

Page 104: ...h a direct busbar connection INSTALLATION OF THE THREE POLE BACK UP EARTH LIFE HAZARD When earthing the cable via the 17 5 kV cable terminal block in combination with a direct busbar connection the sh...

Page 105: ...BACK UP EARTH Fundamental principle The cable is earthed via the integrated earthing of the load break switch or circuit breaker figure 4 1 Unlock the back up earthing unit by means of the two interlo...

Page 106: ...e figures 2 and 3 for an example The earth plate of the relevant SVS 12 panel has to have a 20 mm ball head bolt connection see figure 4 for an example These earthing cables with ball head bolt connec...

Page 107: ...of the load break switch or circuit breaker see chapter 4 3 1 2 Open the relevant protection cover by turning the key a quarter turn counterclockwise and remove the panel figure 1 NOTE The shutter ca...

Page 108: ...the metering and voltage testing of the phase that has not been earthed by an earthing cable To do so the load break switch or circuit breaker has to be switched off LIFE HAZARD Before changing phases...

Page 109: ...witch off see chapter 4 2 2 2 Set the disconnector to the earthing position see chapter 4 2 4 3 Check that the selector 7 is in the right hand position 4 Insert the key in the lock of the protection c...

Page 110: ...he fuse into the installation Inserting the 12 kV fuse with handle 9 Close the protection cover by pushing the selector 7 up and turning the key a quarter turn clockwise 10 Set the disconnector to the...

Page 111: ...the load break switch or circuit breaker see chapter 4 3 1 Disconnect any cable side voltage transformer and overvoltage deflectors if present see chapter 4 2 9 2 Open the relevant protection cover by...

Page 112: ...ring and voltage testing equipment in the right angle plugs figure 2 6 Turn the load break switch or circuit breaker off see chapter 4 2 2 4 2 3 Metering or voltage testing can now be carried out 7 Im...

Page 113: ...pin is removed from any secondary voltage coils AFTER the secondary voltage is applied to the installation The blocking pin is situated on the coil in the mechanism compartment see 6 1 2 and bears a l...

Page 114: ...s free under strip G of the main spring figure 1 4 Turn the operating shaft back 5 Remove the pin X and remove the main spring completely from the mechanism DANGER WARNING The main spring is still ten...

Page 115: ...hed on and off ten times Maintenance of the mechanism WARNING During the following activities access is gained to the mechanism Avoid injuries that may be caused by uncontrolled movements of the mecha...

Page 116: ...oad break switch or circuit breaker C The bevel gear D The catch in the three levers E The shaft for driving the position indicator for the disconnector F The shaft for driving the position indicator...

Page 117: ...the position indicator B Hinge points of the interlock C Pins of the on off pushbutton D Interlock plate E Gear wheels ball bearings and bridge F Gear wheels of right angle transmission G Hinge points...

Page 118: ...nylon vent threads can be fitted see figure 1 If it is difficult to slide down because the grease has become too viscous you may heat the cable box a little using a hair drier for instance DANGER WAR...

Page 119: ...th 10 12 kV bottom contacts with spacer figure 2 If an installation is initially commissioned with a certain operating voltage and is later changed to a different operating voltage the bottom contacts...

Page 120: ...hat the outgoing cables are not live 3 Remove the 10 12 kV bottom contacts and the spacers using the special spanner 4 Clean the contact surfaces of the 20 24 kV bottom contacts with for example Scotc...

Page 121: ...ing cables are not live 3 Remove the 20 24 kV bottom contacts with the special spanner 4 Clean contact surfaces of the 10 12 kV bottom contacts with spacer using for example Scotch Brite scouring pads...

Page 122: ...able for advice and repair work 24 hours a day 7 days a week Address EATON ELECTRIC B V Eaton Electrical Services Systems E_ESS 7550 AA HENGELO P O Box 23 7559 SC HENGELO Europalaan 202 Telephone 31 0...

Page 123: ...SVS 12 994 530 G01 02 123 7 ACCESSORIES 7 1 List of available accessories 1 Operating handle 2 Key for protection cover 3 Lifting eyes cover caps and nylon washers 4 Key for cable core clamps 1 2 3 4...

Page 124: ...1 02 5 Filling device with hand pump filling hose with hose clip shut off ring and connector nipple filling device with filling tube 5 6 Single core Eaton plastic transformer cable specify length and...

Page 125: ...withstand current kA 7 7 7 Length of earthing pin without operating rod mm 530 530 680 Earthing cable cross section mm2 25 25 25 8 Earthing equipment for earthing the cable of a 12 kV load break swit...

Page 126: ...hort time withstand current for 1 sec kA 20 20 Rated peak withstand current kA 50 50 Earthing cable cross section mm2 70 70 10 Single pole short circuit proof back up earth to be installed on the 12 1...

Page 127: ...2 Technical data Rated voltage IEC kV 12 17 5 Rated short time withstand current for 1 sec kA 20 20 Rated peak withstand current kA 50 50 Earthing cable cross section mm2 50 50 12 Padlock with warnin...

Page 128: ...SVS 12 128 994 530 G01 02 14 Metering and testing pins for 12 17 5 kV cable terminal block Metering and testing pins for right angle plugs on request 14...

Page 129: ...e grip The indicator lamp lights up when a voltage is present at the test point of the probe The pushbutton is used to test the probe The rated voltage of the probe should be equal to the operating vo...

Page 130: ...ER must be appointed in accordance with EN 50110 1 the INSTALLATION MANAGER is directly responsible for operation of the installation If two or more installations are in close proximity to each other...

Page 131: ...ations arcing may occur unexpectedly and be of an explosive nature 8 3 Equipment and the area surrounding it Electrical installation An assembly of electrical leads and the appliances to which the lea...

Page 132: ...ck including single line diagram equipment diagrams key to codes mimic diagrams space allocation floor plan drawing with dimensions measurements and weights Test reports routine test reports of switch...

Page 133: ...SVS 12 994 530 G01 02 133 9 2 Voltage detecting system Wega 1 2...

Page 134: ...SVS 12 134 994 530 G01 02...

Page 135: ...SVS 12 994 530 G01 02 135...

Page 136: ...SVS 12 136 994 530 G01 02...

Page 137: ...SVS 12 994 530 G01 02 137 9 3 Phase monitor Orion 3 0...

Page 138: ...SVS 12 138 994 530 G01 02...

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