Ormazabal velatia cgm.3 system General Instructions Manual
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Ormazabal velatia cgm.3 system General Instructions Manual

Medium-voltage cubicles with integrated insulation in sf6 gas up to 40.5 kv in accordance with iec standard with rated current up to 630 a.
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cgm.3 system
Medium-voltage cubicles with integrated
insulation in SF
gas up to 40.5 kV in
6
accordance with IEC Standard with rated
current up to 630 A.
General Instructions
IG-136-EN, version 13, 23/04/2020
LIB

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Summary of Contents for Ormazabal velatia cgm.3 system

  • Page 1 cgm.3 system Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. General Instructions IG-136-EN, version 13, 23/04/2020...
  • Page 2 Therefore, the use of this equipment poses electrical, mechanical and thermal risks. In order to ensure an acceptable level of protection for people and property, and in compliance with applicable environmental recommendations, Ormazabal designs and manufactures its products according to the principle of integrated safety, based on the following criteria: •...

  • Page 3: Table Of Contents

    General Instructions Contents cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. Contents 1. General description ...........5 5.4.4. Switch closing operation from isolating position .
  • Page 4 Contents General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 7. Maintenance .............78 7.1. Live voltage indicator test ....78 7.2.

  • Page 5: General Description

    40.5 kV in accordance with IEC Standard with rated current up to 630 A. General description Ormazabal's cgm.3 system, designed following the with full SF gas insulation, which can be used to con gure requirements set out in the standards of the International...

  • Page 6: Main Components

    General description General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 1.3. Main components Gas tank Side connection female bushings Driving mechanisms area Name plate Operating sequence plate Actuating shafts (see mimic diagram for each model).

  • Page 7: Gas Tank

    General Instructions General description cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 1.3.1. Gas tank Sealed compartment which houses the busbar and the switching and breaking elements, where the insulating material is SF Each gas tank has a pressure relief device to facilitate gas...

  • Page 8: Base

    Made up of the cable compartment and the gas relief Gas relief compartment compartment: Ormazabal's cgm.3 is designed and constructed to withstand at least the thermal and dynamic e ects of an arc Cable compartment of 16 kA for 0.5 seconds should a defect result in an internal arc in the gas compartment.

  • Page 9: Name Plate

    (t) Year Year of manufacture Minimum working temperature Internal arc classi cation * In the event of incident, this number should be reported to Ormazabal. Table 1.5. Name plate The I and t values on the name plates of the (cgm.3-m) metering cubicles are only valid for the...

  • Page 10: Ratings Table

    The values set out in this table are general for the cgm.3 system and are only valid when con rmed by Ormazabal. Some cubicle models can withstand partial values. For more detailed information, check the table for each cubicle model in Ormazabal's CA-112 catalogue. IG-136-EN version 13; 23/04/2020...

  • Page 11: Dimensions And Weights

    1042 In the case of double symmetrical terminal, the switchgear is an extra 80 mm deep. As an option, there is also a 595 mm wide cgm.3-v cubicle module available. Please check with Ormazabal. Table 1.7. Cubicle dimensions and weights...

  • Page 12: Operating Conditions

    'Common speci cations for high-voltage cubicles' . For special service conditions: ambient temperature above + 40ºC, installation between 2000 and 4000 m above sea level, signi cant pollution level, or others di erent to those described, check with Ormazabal. IG-136-EN version 13; 23/04/2020...

  • Page 13: Handling And Transport

    General Instructions Handling and transport cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. Handling and transport Important: During transport, the switchgear must be perfectly seated and xed so that it cannot move about and possibly damage the equipment.
  • Page 14 Handling and transport General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 4. To handle sets of ve functional cgm.3 units (consisting of either coupled modules or compact assemblies associated with modules), use lifting systems (slings, lifting beam, etc.) with a pull angle greater than 65º...

  • Page 15: Storage

    General Instructions Storage cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. Storage If it needs to be stored, the equipment must be placed on After prolonged storage, clean all the insulating parts dry ground or on top of damp-proof insulating material, still carefully before commissioning the equipment.

  • Page 16: Installation

    On receiving the equipment, check that the goods supplied cable compartment cover. correspond to the order and associated documentation. If this is not the case, contact Ormazabal immediately. The self-adhesive plastic must be removed from the cable compartment cover so that the equipment...

  • Page 17: Minimum Installation Distances

    Annex A of Standard IEC 62271-200. The space required to extend the assembly with an additional cubicle is 250 mm plus the width of the new cubicle For any doubts, please ask Ormazabal. IG-136-EN version 13; 23/04/2020...

  • Page 18: Recommended Cable Connection Trenches

    Installation General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 4.4. Recommended cable connection trenches Minimum recommended dimensions based on the trench IEC 62271-200.
  • Page 19 General Instructions Installation cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. Fuse protection function Front and rear cable input or output (D1) Side cable input or output (D2) Figure 4.5.
  • Page 20 Installation General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. Circuit-breaker function with AV/RAV driving mechanism Front and rear cable input or output (D1) Side cable input or output (D2) Figure 4.6.

  • Page 21: Cubicles With Internal Arc Classification

    General Instructions Installation cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 4.4.2. Cubicles with Internal arc classification IAC up to 25 kA - 1 s Feeder function, busbar rise and cable rise Front and rear cable input or output (D1) Side cable input or output (D2)
  • Page 22 Installation General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. Fuse protection function Front and rear cable input or output (D1) Side cable input or output (D2) Figure 4.8.
  • Page 23 General Instructions Installation cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. Circuit-breaker function with AV/RAV driving mechanism Front and rear cable input or output (D1) Side cable input or output (D2) Figure 4.9.
  • Page 24 Installation General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. Metering function Figure 4.10. Dimensions [mm] of the cable trench for cgm.3-m Trench necessary for the metering function Approximate Cable...
  • Page 25 General Instructions Installation cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. Metering function and auxiliary services Figure 4.11. Dimensions [mm] of the cable trench for cgm.3-ma Trench necessary for the metering function and auxiliary services Approximate Cable...

  • Page 26: Floor Fastening

    Installation General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 4.5. Floor fastening Before assembling the cubicles, the oor must be carefully The cubicles can be fastened to the oor in two ways: levelled to prevent any deformation which may make it di cult to connect the cubicles to one another.
  • Page 27 General Instructions Installation cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 2. Remove the cable compartment cover, using the central handle on the cover to pull it up and forward. 3.
  • Page 28 Installation General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. Figure 4.14. Anchoring points in cgm.3 -l, -s, -s-pt, -p,-v, -rb, -rb-pt Figure 4.16.
  • Page 29 General Instructions Installation cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. Figure 4.18. Anchoring points in cgm.3-r2c cubicles Figure 4.20. Anchoring points in cgm.3-ma cubicles Figure 4.19.
  • Page 30 In order to anchor this type of cubicles properly, use the six points indicated in the gure below. For further information, please ask Ormazabal. Figure 4.23. Anchoring points in cgm.3-2lp cubicles measuring 1400 mm high Figure 4.25.

  • Page 31: Connecting The Cubicles

    40.5 kV in accordance with IEC Standard with rated current up to 630 A. 4.6. Connecting the cubicles The cubicles must be joined as indicated in Ormazabal's supplied with the materials kit for connecting cubicles. RA-163 spares and accessories document, which is 4.7.

  • Page 32: Cable Connections

    Screened M400TB 35-240 M440TB 185-630 * Connectors recommended for Ormazabal’s cgm.3 system cubicles. Table 4.11. Recommended terminals Apart from the list above, CENELEC terminals are also valid. For other values, check with Ormazabal. Moreover, the following maximum and minimum dimensions for a standard terminal when double toroidal- cores are installed must be taken into account.

  • Page 33: Horizontal Front Connection

    The clamp has two positions, depending on the cable diameter. Speci c cable brackets should be used for cable diameters above 49 mm. Please check with Ormazabal. Figure 4.29. Terminal connection detail IG-136-EN version 13; 23/04/2020...
  • Page 34 Installation General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 4. Connect the terminal earth braids, if applicable, and the cable screens. Figure 4.30.

  • Page 35: Cable Connection In Fuse Protection

    General Instructions Installation cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 4.8.2. Cable connection in fuse protection function 1400 mm high The cable bracket in fuse protection functions, measuring 1400 high, is supplied secured to the base with two M8 bolts and nuts, as shown in Figure 4.31.
  • Page 36 Installation General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 2. Turn the cable bracket and position it as shown in Figure 4.33.

  • Page 37: Assembling And Connecting Metering

    4.10. Assembling and connecting metering and auxiliary services transformers in cgm.3-ma The metering transformers and the auxiliary services For further information on assembling and connecting transformers are located on tracks installed in Ormazabal's Ormazabal's cgm.3-ma metering and auxiliary cgm.3-ma modular metering cubicle.

  • Page 38: Recommended Sequence Of Operations

    Recommended sequence of operations General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. Recommended sequence of operations Before carrying out any operation when voltage is present, we recommend checking the SF gas pressure using the pressure gauge.

  • Page 39: Live Voltage Indicator

    IEC Standard with rated current up to 630 A. 5.2. Live voltage indicator Ormazabal has two live voltage indication options: The purpose of the test points for the three phases and earth is to make it easier to check the phase concordance [12] •...

  • Page 40: Phase Concordance Check

    SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.3. Phase concordance check Ormazabal's ekor.spc phase comparator should be used [13] for checking that the medium-voltage cables are correctly connected to the feeder cubicles.

  • Page 41: Feeder Function

    General Instructions Recommended sequence of operations cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.4. Feeder function 5.4.1. Mimic diagram ekor.sas, acoustic earthing prevention alarm Pressure gauge window Live voltage indicator ekor.vpis or ekor.ivds Operations area:...

  • Page 42: Opening Operation From Earthing Position

    Recommended sequence of operations General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.4.3. Opening operation from earthing position 1. Move the actuating shaft access handle in the yellow zone to its bottom position.

  • Page 43: Switch Closing Operation From Isolating

    General Instructions Recommended sequence of operations cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.4.4. Switch closing operation from isolating position 1. Move the actuating shaft access handle in the grey zone to its bottom position.

  • Page 44: Opening Operation From Closed Position

    Recommended sequence of operations General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.4.5. Opening operation from closed position 1. Move the actuating shaft access handle in the grey zone to its bottom position.

  • Page 45: Earthing Operation From Open Position

    General Instructions Recommended sequence of operations cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.4.6. Earthing operation from open position 1. Move the actuating shaft access handle in the yellow zone to its bottom position.

  • Page 46: Cable Test

    B/BM/B2M driving section "5.4.6. Earthing operation from open position". mechanisms with this characteristic. Please check with Ormazabal. 7. Close the bottom cover to access the cable compartment. 1. Follow the steps in section "5.4.6. Earthing operation from open position".

  • Page 47: Busbar Switch Function

    General Instructions Recommended sequence of operations cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.5. Busbar switch function 5.5.1. Mimic diagram Pressure gauge window Operations area: •...

  • Page 48: Switch Closing Operation From Isolating

    Recommended sequence of operations General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.5.3. Switch closing operation from isolating position 1. Move the actuating shaft access handle to its bottom position.

  • Page 49: Opening Operation From Closed Position

    General Instructions Recommended sequence of operations cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.5.4. Opening operation from closed position 1. Move the actuating shaft access handle to its bottom position.

  • Page 50: Busbar Switch Function With Earth

    Recommended sequence of operations General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.6. Busbar switch function with earth connection 5.6.1. Mimic diagram ekor.sas, acoustic earthing prevention alarm Pressure gauge window...

  • Page 51: Opening Operation From Earthing Position

    General Instructions Recommended sequence of operations cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.6.3. Opening operation from earthing position 1. Move the actuating shaft access handle in the yellow zone to its bottom position.

  • Page 52: Connecting The Switch-Disconnector From

    Recommended sequence of operations General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.6.4. Connecting the switch-disconnector from isolating position 1. Move the actuating shaft access handle in the grey zone to its bottom position.

  • Page 53: Opening Operation From Closed Position

    General Instructions Recommended sequence of operations cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.6.5. Opening operation from closed position 1. Move the actuating shaft access handle in the grey zone to its bottom position.

  • Page 54: Earthing Operation From Open Position

    Recommended sequence of operations General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.6.6. Earthing operation from open position 1. Move the actuating shaft access handle in the yellow zone to its bottom position.

  • Page 55: Busbar Rise Function With Earth Connection

    General Instructions Recommended sequence of operations cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.7. Busbar rise function with earth connection 5.7.1. Mimic diagram Pressure gauge window Voltage indicator ekor.vpis or ekor.ivds...

  • Page 56: Earthing Switch Opening Operation

    Recommended sequence of operations General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.7.3. Earthing switch opening operation 1. Move the actuating shaft access handle in the yellow zone to its bottom position.

  • Page 57: Earthing Switch Closing Operation

    General Instructions Recommended sequence of operations cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.7.4. Earthing switch closing operation 1. Move the actuating shaft access handle in the yellow zone to its bottom position.

  • Page 58: Fuse Protection Function

    Recommended sequence of operations General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.8. Fuse protection function 5.8.1. Mimic diagram ekor.sas, acoustic earthing prevention alarm Pressure gauge window Voltage indicator ekor.vpis or ekor.ivds Operations area:...

  • Page 59: Opening Operation From Earthing Position

    General Instructions Recommended sequence of operations cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.8.3. Opening operation from earthing position 1. Move the actuating shaft access handle to its bottom position.

  • Page 60: Spring Charge Operation And Closing Of The Switch-Disconnector From Isolating Position

    Recommended sequence of operations General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.8.4. Spring charge operation and closing of the switch-disconnector from isolating position 1.

  • Page 61: Opening Operation From Switch-Disconnector

    General Instructions Recommended sequence of operations cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.8.5. Opening operation from switch-disconnector closed position 1. The switch can be opened manually, using the push- button on the front of the cubicle, a tripping coil, or due to action by the fuses.

  • Page 62: Earthing Operation From Open Position

    Recommended sequence of operations General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.8.6. Earthing operation from open position 1. Move the actuating shaft access handle to its bottom position.

  • Page 63: Fuse Replacement Sequence

    General Instructions Recommended sequence of operations cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.9. Fuse replacement sequence To access the fuse holders, rst remove the cable compartment cover.
  • Page 64 Recommended sequence of operations General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 3. Pull up the handle on the fuse holder cover until the locking clip is unhooked and then pull sharply outwards to open the fuse holder.
  • Page 65 General Instructions Recommended sequence of operations cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 6. Insert the fuse holder carriage in its compartment by pulling it inwards.

  • Page 66: Selection Of Recommended Fuses

    Fuse Cubicle Fuse up to 40.5 kV (conforming to IEC 60282-1). transfer [kV] [kV] • For other makes and overcharge protection, check with Type SSK 80 Ormazabal. 40.5 40.5 Type HHD 63 Table 5.14. Transfer currents IG-136-EN version 13; 23/04/2020...

  • Page 67: Circuit-Breaker Function With Av/Rav Driving

    General Instructions Recommended sequence of operations cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.10. Circuit-breaker function with AV/RAV driving mechanism 5.10.1. Mimic diagram Pressure gauge window Live voltage indicator ekor.vpis or ekor.ivds Operations area:...

  • Page 68: Spring Charge And Actuating Levers

    Recommended sequence of operations General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.10.2. Spring charge and actuating levers The drive and spring charge levers to be used to drive the switch-disconnector-earthing switch of the circuit-breaker function with AV/RAV driving mechanisms are: Figure 5.62.
  • Page 69 General Instructions Recommended sequence of operations cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 2. Earthing switch opening operation: a. Manual operation. Insert the lever in the earthing actuating shaft, move the driving arm to the end and turn anti-clockwise.

  • Page 70: Closing Operation From Isolating Position

    Recommended sequence of operations General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.10.4. Closing operation from isolating position Initial conditions: earthing switch open, circuit- breaker closed and springs charged.
  • Page 71 General Instructions Recommended sequence of operations cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 3. Switch-disconnector closing operation: a. Manual operation. Insert the lever in the switch-disconnector actuating shaft, move the drive arm to the end and turn clockwise.

  • Page 72: Opening Operation From Closed Position

    Recommended sequence of operations General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.10.5. Opening operation from closed position Initial conditions: circuit-breaker closed, earthing switch open and springs charged.
  • Page 73 General Instructions Recommended sequence of operations cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 4. Switch-disconnector opening operation: a. Manual operation (BM driving mechanism). Insert the lever in the disconnector actuating shaft, move the actuating arm to the end and turn anti- clockwise 90º.

  • Page 74: Earthing Operation From Open Position

    Recommended sequence of operations General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 5.10.6. Earthing operation from open position Initial conditions: circuit-breaker open, earthing switch open and springs charged.
  • Page 75 General Instructions Recommended sequence of operations cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 4. Earthing switch closing operation: a. Manual operation. Insert the lever in the earthing switch actuating shaft, move the driving arm to the end and turn clockwise 90º.

  • Page 76: Safety Elements

    Safety elements General Instructions cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. Safety elements 6.1. Acoustic earthing prevention alarm The ekor.sas acoustic alarm unit is associated to the ekor.vpis live voltage indicator and to the earth shaft actuator.

  • Page 77: Locking With A Padlock

    General Instructions Safety elements cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 6.2.1. Locking with a padlock The cubicles are supplied with independent padlock interlocking for both the switch-disconnector in closed or open positions and for the earthing switch in closed or open positions.

  • Page 78: Maintenance

    (IEC 62271-1), must carry out the regular preventive maintenance tasks required. Check operation throughout its estimated lifetime, according to with Ormazabal for the environmental conditions of the service conditions speci ed in IEC 62271-1. the facility. These mechanisms must be inspected when used under 7.1.

  • Page 79: Acoustic Earthing Prevention Alarm Test

    General Instructions Maintenance cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. 7.2. Acoustic earthing prevention alarm test To test that the ekor.sas acoustic alarm is working correctly, connect the ekor.vpis at 230 V with 4 mm terminals, which are placed in the indicator between the earth test point and...

  • Page 80: Specific Maintenance For The Cgm.3-V

    Maintenance should be carried out every 5 years or 2000 the gas tank may require preventive maintenance; the operating cycles, unless, based on the conditions of use, the user, together with Ormazabal, considers otherwise. frequency of this maintenance depends on the existing environmental conditions (harsh environments, dust, extreme temperatures, etc.) and must be established in line...

  • Page 81: Spares And Accessories

    Certain spares and accessories must be installed in the If any of the stated auxiliary components need to be cubicle by specialised personnel. Please check with changed, the corresponding spare parts kit must be Ormazabal. -rb/ -rc/ -2lv/ Driving mechanisms...
  • Page 82 Operating sequence plate Name plate Components which can only be replaced by specially quali ed Ormazabal personnel. Cable compartment access cover and compartment. In the case of self-powered protection units, the self-power sensors are supplied on their own, for assembly when installing the cubicles in the medium- voltage cables.

  • Page 83: Environmental Information

    General Instructions Environmental information cgm.3 system: Medium-voltage cubicles with integrated insulation in SF gas up to 40.5 kV in accordance with IEC Standard with rated current up to 630 A. Environmental information cgm.3 cubicles are de ned as a pressure-sealed system, it being released into the atmosphere.
  • Page 84 Subject to change Ormazabal without prior notice. y Cía. For further information, IGORRE please contact Spain Ormazabal. www.ormazabal.com...

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