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IG-183-EN version 06; 31/03/2020

General instructions

cgm

.3 system: medium voltage SF

gas-insulated

cubicles up to 38 kV according to IEEE and CSA standards

Safety elements

6. Safety elements

6.1. Earthing prevention acoustic alarm unit

The

ekor

.sas earthing prevention alarm is an acoustic

indicator which works in association with the earthing shaft

lever and the

ekor

.vpis voltage presence indicator. Both

thus operate within the same range.

The alarm is activated when there is voltage in the cubicle’s

MV feeder and the lever is inserted in the earthing switch

shaft. A sound then warns the operator that if he performs

the operation, a short-circuit in the network might occur.

Optional

unit supplied on demand. Incompatible with

ekor

.ivds units.

6.2. Interlocks

The

cgm

.3 switchgear incorporates safety locks required to

ensure the following conditions:

The switch-disconnector and the grounding switch

cannot both be in closed position at the same time.

The cubicles have a safety lock which prevents access

to the medium voltage cable compartment while the

grounding switch is not closed. In normal operation,

this grounding switch cannot be opened if the cable

compartment cover is not in place.

Содержание cgm.3 system Series

Страница 1: ...LIB cgm 3 system medium voltage SF6 gas insulated cubicles up to 38 kV according to IEEE and CSA standards General instructions IG 183 EN version 06 31 03 2020...

Страница 2: ...ectrical installations Personnel must be fully familiar with the instructions and warnings contained in this manual and in other recommendations of a more general nature which are applicable to the si...

Страница 3: ...ion from the open position 44 5 3 5 Cable test 44 5 4 cgm 3 s cubicle 45 5 4 1 Switch disconnector closing operation 45 5 4 2 Switch disconnector opening operation 46 5 5 cgm 3 s ptd cubicle 47 5 5 1...

Страница 4: ...ording to IEEE and CSA standards 7 Maintenance 77 7 1 Voltage presence indicator test 77 7 2 Acoustic grounding prevention alarm test 78 7 2 1 Connecting the ekor sas unit 79 7 3 Specific maintenance...

Страница 5: ...1 kv 38 kv for use in metal enclosed switchgear IEEE C37 04 IEEE Standard rating structure for ac high voltage circuit breakers IEEE C37 06 AC high voltage circuit breakers rated on a symmetrical curr...

Страница 6: ...s see mimic diagram of each model 2 4 ekor vpis ekor ivds voltage presence detection unit 2 5 ekor sas acoustic earthing prevention alarm unit 3 Base 3 1 Cable compartment access cover 3 2 Medium volt...

Страница 7: ...n the green zone of the corresponding temperature band Pressuregaugeisnotintendedtobeusedfortelemetry purposes Figure 1 3 Manometer Includes a padlockable coupling device which allows the driving mech...

Страница 8: ...nding lever To ensure that the isolating distance is adequate the cgm 3 v cubicle s circuit breaker comes standard with a switch disconnector and a grounding switch This element is operated using a sp...

Страница 9: ...nd BM driving mechanisms c Status Indicator GREEN open RED closed d Actuation shaft access handle Figure 1 8 Mimic diagram of cgm 3 s cubicle cgm 3 s ptd a ekor sas acoustic grounding prevention alarm...

Страница 10: ...rounding switch e Status indicators GREEN open RED closed f Actuation shaft access handle Figure 1 10 Mimic diagram of cgm 3 s pti cubicle cgm 3 p a ekor sas acoustic grounding prevention alarm b Pres...

Страница 11: ...tus indicators g Earthing switch actuating shaft access handle j Spring change indicator k Circuit breaker manual spring change m Operation counter n Switch disconnector actuating shaft access handle...

Страница 12: ...instructions cgm 3 system medium voltage SF6 gas insulated cubicles up to 38 kV according to IEEE and CSA standards cgm 3 rb f ekor vpis ekor ivds voltage presence indicator Figure 1 14 Mimic diagram...

Страница 13: ...pis unit for detecting voltage designed in accordance with standard IEC 62271 206 The ekor ivds unit for detecting voltage designed in accordance with standard IEC 61243 5 Both units provide a clear v...

Страница 14: ...is voltage presence indicator Both operate within the same range The alarm is activated when there is voltage in the cubicle s medium voltage feeder and the lever is inserted in the grounding switch s...

Страница 15: ...nical operations switch 1000 or 5000 operations circuit breaker 2000 or 10000 operations Ik Ip Short time withstand current Short time withstand peak value Fault making current kA tk Short time withst...

Страница 16: ...357 162 s 16 418 33 850 69 1745 315 143 s pt 24 600 33 850 69 1745 408 185 p 19 480 40 1010 69 1745 21 525 507 230 v 24 600 2 33 850 69 1745 27 695 562 255 rci rcd 14 367 33 831 69 1745 93 42 r2c 21 6...

Страница 17: ...ft truck or hand operated pallet truck Position the rear of the cubicle facing the driver to avoid damaging the front Figure 2 1 Lifting a cgm 3 modular cubicle using a fork lift truck 2 Raising it us...

Страница 18: ...ng beam etc with a pull angle greater than 65 and less than 115 in order to prevent possible damage to the cubicles during hoisting The use of lifting beams is required for cubicle assemblies with con...

Страница 19: ...perfectly seated and fixed so that it cannot move about and possibly damage the equipment The corresponding documentation General Instructions electrical diagrams etc is supplied with the cubicles as...

Страница 20: ...les Depending on the medium voltage cubicle model the accessory box contains some of the following items Ormazabal s IG 183 General Instructions document Actuating lever Spring charging lever Cubicle...

Страница 21: ...th storage temperature down to 40 C The switchgear must be protected against direct solar radiation The altitude shall not exceed 2000 m The ambient air must not be significantly contaminated due to d...

Страница 22: ...atching the surface 2 Remove the cellophane 3 Detach the white polystyrene corner pieces 4 Unscrew the fixings between the base and the pallet 5 Remove the pallet handling the cubicle as indicated in...

Страница 23: ...gas insulated modules according to Annex A of Standard IEC 62271 200 for Class IAC AFL and AFLR similar to IEEE C37 20 7 for Class 1D sR or 1D sL and 1D sR sL R With the use of rear stack The space r...

Страница 24: ...ise and cable raise functions The m nimum dimensions of the cable trench depend of the m nimum radius of curvature of the cables used D1 Frontal or rear cables incoming or outgoing D2 Lateral cables i...

Страница 25: ...Dimensions mm of the cable trench for cgm 3 p Necessary cable trench for fuse protection raise functions Cable data Minimum depth Cable insulation Cable type Cable section mm2 Cable diameter mm Indica...

Страница 26: ...3 v with AV RAV driving mechanism Necessary cable trench for circuit breaker with AV RAV driving mechanism Cable data Minimum depth Cable insulation Cable type Cable section mm2 Cable diameter mm Indi...

Страница 27: ...ble trench for cgm 3 m Trench necessary for the metering function Cable insulation Cable type Cable section mm2 Cable diameter mm Approximate radius of curvature mm Minimum depth D2 Dry insulation One...

Страница 28: ...the cable trench for cgm 3 l cgm 3 rb and cgm 3 rc Necessary cable trench for feeder busbar raise and cable raise functions Cable data Minimum depth Cable insulation Cable type Cable section mm2 Cabl...

Страница 29: ...ure 4 8 Dimensions mm of the cable trench for cgm 3 p Necessary cable trench for fuse protection cubicle Cable data Minimum depth Cable insulation Cable type Cable section mm2 Cable diameter mm Indica...

Страница 30: ...3 v with AV RAV driving mechanism Necessary cable trench for circuit breaker with AV RAV driving mechanism Cable data Minimum depth Cable insulation Cable type Cable section mm2 Cable diameter mm Indi...

Страница 31: ...rmer Substation is not sufficiently uniform it is advisable to install the medium voltage cubicle assembly on an auxiliary profile to make it easier to connect them This profile which can be supplied...

Страница 32: ...the cover to pull it up and forward as indicated in the figure Figure 4 11 Removing the cable compartment cover 3 Anchor the first medium voltage cubicle to the floor of the installation using screws...

Страница 33: ...1 540 28 710 v 2 50 22 550 13 325 21 540 28 710 rb 2 50 14 368 10 245 21 540 28 710 rb pt 2 50 14 368 10 245 21 540 28 710 rc 2 50 12 317 17 13 435 21 540 21 540 rci 8 209 rci 8 209 r2c 2 50 19 68 500...

Страница 34: ...medium voltage SF6 gas insulated cubicles up to 38 kV according to IEEE and CSA standards Figure 4 15 Anchoring points in cgm 3 rc cubicles Figure 4 16 Anchoring points in cgm 3 rc cubicles Figure 4...

Страница 35: ...medium voltage SF6 gas insulated cubicles up to 38 kV according to IEEE and CSA standards Installation Figure 4 19 Anchoring diagram cgm 3 2lp double cable 1745 mm high Figure 4 20 Anchoring diagram...

Страница 36: ...onnecting cubicles 4 6 Grounding the equipment For connecting the general grounding collector follow the procedures listed below 1 Screw the ground connection bar between each 2 medium voltage cubicle...

Страница 37: ...partment contains the connecting cable bushings for the incoming and outgoing lines as well as for the outputs to the transformer The size of the cable compartment allows the use of both insulated and...

Страница 38: ...ctuating lever inserted Do not refill the switchgear 5 1 Checking voltage presence and phase balance Any universal comparator which complies with specifications of standard IEC 62271 206 can be used f...

Страница 39: ...insulated cubicles up to 38 kV according to IEEE and CSA standards Recommended sequence of operations 1 Comparison of balanced phases There is NO indication on the comparator 2 Comparison of unbalanc...

Страница 40: ...ng on the type of driving mechanism used 5 2 1 Lever for B BR A AV and RAV driving mechanisms This is an anti reflex lever for performing closing I and opening O operations in the switch disconnector...

Страница 41: ...cubicle 5 3 1 Opening operation from the grounded position 1 Move the actuation shaft access handle in the yellow zone to its lower position 2 Insert the lever in the grounding switch actuation shaft...

Страница 42: ...ards 5 3 2 Switch closing operation from the open position 1 Move the actuation shaft access handle in the grey zone to its lower position 2 Insert the lever in the switch disconnector actuation shaft...

Страница 43: ...g operation from the switch disconnector closed position 1 Move the actuation shaft access handle in the grey zone to its lower position 2 Insert the lever in the switch disconnector actuation shaft a...

Страница 44: ...ion shaft and turn clockwise 3 Remove the lever the handle returns to its original position 4 Verify that the cubicle is in grounding position Figure 5 7 Grounding from open position cgm 3 l 5 3 5 Cab...

Страница 45: ...ommended sequence of operations 5 4 cgm 3 s cubicle 5 4 1 Switch disconnector closing operation 1 Move the actuation shaft access handle to its lower position 2 Inserttheleverintheactuationshaftandtur...

Страница 46: ...rding to IEEE and CSA standards 5 4 2 Switch disconnector opening operation 1 Move the actuation shaft access handle to its lower position 2 Insert the lever in the actuation shaft and turn anticlockw...

Страница 47: ...cubicle 5 5 1 Opening operation from the grounded position 1 Move the actuation shaft access handle in the yellow zone to its lower position 2 Insert the lever in the grounding switch actuation shaft...

Страница 48: ...dards 5 5 2 Closing operation from the open position 1 Move the actuation shaft access handle in the grey zone to its lower position 2 Insert the lever in the switch disconnector actuation shaft and t...

Страница 49: ...peration from the switch disconnector closed position 1 Move the actuation shaft access handle in the grey zone to its lower position 2 Insert the lever in the switch disconnector actuation shaft and...

Страница 50: ...andards 5 5 4 Grounding operation from the open position 1 Move the actuation shaft access handle in the yellow zone to its lower position 2 Insert the lever in the grounding switch actuation shaft an...

Страница 51: ...cubicle 5 6 1 Opening operation from the grounded position 1 Move the actuation shaft access handle in the yellow zone to its lower position 2 Insert the lever in the grounding switch actuation shaft...

Страница 52: ...dards 5 6 2 Closing operation from the open position 1 Move the actuation shaft access handle in the grey zone to its lower position 2 Insert the lever in the switch disconnector actuation shaft and t...

Страница 53: ...ening operation from the switch disconnector closed position 1 Move the actuation shaft access handle in the grey zone to its lower position 2 Insert the lever in the switch actuation shaft and turn a...

Страница 54: ...andards 5 6 4 Grounding operation from the open position 1 Move the actuation shaft access handle in the yellow zone to its lower position 2 Insert the lever in the grounding switch actuation shaft an...

Страница 55: ...ration from the grounded position 1 Move the actuation shaft access handle to its lower position 2 Insert the lever in the grounding switch actuation shaft and with one hand press on the head of the l...

Страница 56: ...mechanism 1 Move the actuation shaft access handle to its lower position 2 Insert the lever in the switch disconnector actuation shaft and with one hand press on the head of the lever and with the ot...

Страница 57: ...Recommended sequence of operations 5 7 3 Opening operation from the switch disconnector closed position 1 The switch can be opened manually using the push button on the front of the cubicle an opening...

Страница 58: ...operation from the open position 1 Move the actuation shaft access handle to its lower position 2 Insert the lever in the grounding switch actuation shaft and with one hand press on the head of the l...

Страница 59: ...ng mechanism compartment As an option an auxiliary blown fuse indication for any of the 3 fuses is also available More precisely it consists of a normally open contact NO plus a normally closed contac...

Страница 60: ...sharply outwards to open the fuse holder Figure 5 24 Opening the fuse holder 4 Remove the fuse holder carriage by pulling it outward Figure 5 25 Removing the fuse holder carriage 5 Replace the blown...

Страница 61: ...rt the fuse holder carriage in its compartment by pulling it inward Before inserting the fuse holder carriage in the fuse protection cubicle ensure that both the carriage as well as the inside of the...

Страница 62: ...t Figure 5 29 Closing the fuse holder 9 Place the fuse and cable compartment access cover a by pushing it downward and ensuring it is locked on the cgm 3 p cubicle taking into account that the green f...

Страница 63: ...16 16 16 20 20 25 40 40 50 63 80 80 25 10 24 6 3 6 3 6 3 6 3 10 16 16 16 20 20 25 31 5 40 50 50 63 80 34 5 20 36 6 3 6 3 10 10 16 16 20 20 31 5 31 5 40 40 50 63 80 General operating conditions Withou...

Страница 64: ...ding 5 9 1 Opening operation from the grounded position 1 Move the actuation shaft access handle in the yellow zone to its lower position 2 Insert the lever in the grounding switch actuation shaft and...

Страница 65: ...s 5 9 2 Grounding operation from the open position 1 Move the actuation shaft access handle in the yellow zone to its lower position 2 Insert the lever in the grounding switch actuation shaft and turn...

Страница 66: ...V Depending on the application this sequence of operations can be modified Check the information of the corresponding sequence ofoperationsplatebuiltintothefrontoftheswitchgear 5 10 1 Opening operati...

Страница 67: ...to 38 kV according to IEEE and CSA standards Recommended sequence of operations 2 Insert the lever in the grounding actuation shaft and turn anticlockwise Figure 5 35 Process of turning the lever 3 Re...

Страница 68: ...g operation from the open position Initial conditions Grounding switch open circuit breaker closed and springs charged Figure 5 37 B BM Driving mechanism lever 1 Open the circuit breaker by pressing t...

Страница 69: ...kV according to IEEE and CSA standards Recommended sequence of operations 3 Insert the lever in the switch disconnector actuation shaft and turn clockwise Figure 5 40 Turn clockwise 4 Remove the leve...

Страница 70: ...switch open Manual driving mechanism AV Charge springs operating the charge lever see Section 5 2 2 Spring charging lever for cgm 3 v until the spring is shown as tight Once the spring has been tighte...

Страница 71: ...tion Initial conditions Grounding switch open circuit breaker closed and springs charged Figure 5 43 B BM Driving mechanism lever 1 Open the circuit breaker by pressing the 0 opening button on the fro...

Страница 72: ...em medium voltage SF6 gas insulated cubicles up to 38 kV according to IEEE and CSA standards 4 Insert the lever in the disconnector actuation shaft and turn anticlockwise Figure 5 46 Turn anticlockwis...

Страница 73: ...pen position Initial conditions Grounding switch open circuit breaker closed and springs charged Figure 5 48 B BM Driving mechanism lever 1 Close the circuit breaker by pressing the I close button and...

Страница 74: ...o IEEE and CSA standards 4 Insert the lever in the grounding switch actuation shaft and turn clockwise Figure 5 51 Turn clockwise 5 Remove the lever The handle returns to its original position Figure...

Страница 75: ...icle s MV feeder and the lever is inserted in the earthing switch shaft A sound then warns the operator that if he performs the operation a short circuit in the network might occur Optional unit suppl...

Страница 76: ...the switch disconnector in its closed or open positions and the grounding switch in its closed or open positions Padlocks with ring diameters of between 0 3 inches 8 mm and 0 4 inches 11 mm can be use...

Страница 77: ...ater demand than those specified as Normal Service Conditions IEC 62271 1 IEEE C37 74 IEEE 1247 and IEEE C37 20 3 the necessary regular preventive maintenance tasks must be carried out Consult Ormazab...

Страница 78: ...the handle is moved to insert the lever in the grounding shaft in order to carry out the operation the alarm starts to sound and continues to sound for at least 30 seconds It stops when the handle is...

Страница 79: ...e The driving mechanisms and other elements outside the gas tank may require preventive maintenance the frequency of this maintenance depends on the existing environmental conditions harsh environment...

Страница 80: ...7 4 Replacement of contact inspection camera This operation could be done in any of the three positions of the switch disconnector 1 Remove the driving mechanism cover by unscrewing the two bolts with...

Страница 81: ...standards Maintenance 3 Extract the cable from the driving mechanims compartment Figure 7 6 Cable extraction 4 Bring the cable to the back part of the gas tank Figure 7 7 Detail of the back part 5 Uns...

Страница 82: ...he O ring Extract the cable connection Figure 7 9 Removing the cover and the cable 7 Insert the cable connection of the new camera first through the O ring and then through the cover of the camera hou...

Страница 83: ...38 kV according to IEEE and CSA standards Maintenance 9 Retighten the O ring with the cover Figure 7 12 Position of the two bolts 10 Bring back the connection cable to the front part of the gas tank a...

Страница 84: ...ated cubicles up to 38 kV according to IEEE and CSA standards 11 Insert the end of the cable through the bulkhead of the driving mechanism compartment Figure 7 14 Inserting the end of the cable 12 Con...

Страница 85: ...d by specifically qualified personel cgm 3 system functional units have the following options for spares and accessories Driving mechanism l p s s pt v m 2lp 2lv rlv rb rb pt rc r2c B X X X X X X X BM...

Страница 86: ...X X X X O O X bushlink 11 X X X X X X Contacts inspection camera O O O O O O pt 1 See Ormazabal s Spare and accessories instructions 2 For reasons of safety driving mechanism BR A should only be repl...

Страница 87: ...SF6 has a GWP Global Warming Potential of 22200 units TAR IPCC 2001 At the end of the product s life the SF6 contained in it must be recovered for processing and recycling to prevent it being released...

Страница 88: ...Subject to change without prior notice For further infotmation contact Ormazabal www ormazabal com Ormazabal y C a IGORRE Spain...

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