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Ormazabal cgm.3-m User Manual

Ormazabal cgm.3-m
88 pages
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LIB
cgm.3 system
medium voltage SF
6
gas-insulated cubicles up to 38 kV
according to IEEE and CSA standards
General instructions
IG-183-EN, version 06, 31/03/2020

Table of Contents

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Ormazabal cgm.3-m Specifications

General IconGeneral
Rated voltageUp to 24 kV
Rated current630 A
Rated short-circuit breaking currentUp to 25 kA
TypeGas-insulated switchgear
GasSF6
Frequency50/60 Hz
Insulation level50 kV

Summary

Description and Main Characteristics

Cubicle Elements

Details the various components making up each cubicle, including gas tank, mechanism area, and base.

Installation

Grounding the Equipment

Details the procedures for connecting the general grounding collector for safety.

Recommended Sequence of Operations

Checking Voltage Presence and Phase Balance

Guides on using comparators to verify cable connections and phase balance.

Fuse Replacement Sequence

Provides steps for safely replacing blown fuses in the fuse protection unit.

Safety Elements

Earthing Prevention Acoustic Alarm Unit

Explains the function of the acoustic alarm for preventing earthing operations.

Interlocks

Describes the safety interlocks ensuring correct and safe cubicle operation.

Maintenance

Voltage Presence Indicator Test

Guides on testing the voltage presence indicator unit for correct function.

Acoustic Grounding Prevention Alarm Test

Details the procedure for testing the ekor.sas acoustic alarm.

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