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Ormazabal cgm.3 system Series User Manual

Ormazabal cgm.3 system Series
76 pages
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cgm.3 system
Fully SF6 gas insulated medium
voltage switchgear up to 40.5 kV in
accordance with IEC Standards
General instructions
IG-136-EN, version 10; 23/06/2016

Table of Contents

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Ormazabal cgm.3 system Series Specifications

General IconGeneral
Rated voltageUp to 24 kV
Short-circuit currentUp to 25 kA
Operating temperature range-25°C to +40°C
Enclosure materialSteel
WeightVaries depending on configuration

Summary

1 General description

1.3 Main components

Details the primary components that constitute the cgm.3 switchgear cubicles.

5 Recommended sequence of operations

5.4 Feeder function.

Covers the mimic diagram and operational steps for the feeder function of the switchgear.

5.10 Circuit-breaker function with AV / RAV driving mechanism

Explains the mimic diagram and operational procedures for the circuit-breaker function.

5.5 Busbar switch function

Details the mimic diagram and operation of the busbar switch function.

5.5.3 Switch closing operation from the disconnected position

Provides steps for closing the busbar switch from the disconnected position.

5.5.4 Opening operation from closed position

Provides steps for opening the busbar switch from the closed position.

5.6 Busbar switch function with earth connection

Covers mimic diagram and operations for the busbar switch with earth connection.

5.6.3 Opening operation from earthing position

Provides steps for opening the busbar switch with earth connection from earthing.

5.6.4 Connection of the switch-disconnector from the disconnected position

Provides steps for connecting the switch-disconnector from the disconnected position.

5.8 Fuse protection function

Covers mimic diagram and operation procedures for the fuse protection function.

5.9 Fuse replacement sequence

Detailed procedure for safely replacing blown fuses in the protection function.

6 Safety elements

6.2 Interlocks

Details the safety locks and interlocks that ensure correct and safe operation of the switchgear.

4 Installation

4.3 Minimum installation distances

Specifies the required clearances from walls and ceiling for safe installation.

4.5 Fastening to the floor

Explains methods for securely anchoring the cubicles to the installation floor.

4.7 Earthing the switchgear

Provides instructions for connecting the general earth collector for safety.

4.8 Cable connections

Explains how to connect medium voltage feeders via cables to the cubicles.

7 Maintenance

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