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NR/SP/ELP/21024

Specification for impedance protection relay for 650/750 V d.c. track feeder circuit breakers

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Organization: NR
Publication Date: 1 December 2005
Status: active
Page Count: 22
scope:

This specification applies to all new impedance protection relays installed on the D.C. Electrified Lines.

Purpose

This specification states the requirements for the design, manufacture and testing of an impedance protection relay for use in association with new or existing 650/750 V d.c. track feeder circuit breakers. When the relay is installed on existing switchgear, as a replacement for an existing protection device, this specification shall also apply to circuit breaker operation, wiring modifications external to the relay and accessories.

The document is to be read in conjunction with the relevant procurement specification.

Document History

NR/SP/ELP/21024
December 1, 2005
Specification for impedance protection relay for 650/750 V d.c. track feeder circuit breakers
This specification applies to all new impedance protection relays installed on the D.C. Electrified Lines. Purpose This specification states the requirements for the design, manufacture and testing...
March 1, 1997
Impedance Protection Relay for 650/750V DC Track Feeder Circuit Breakers
This specification applies to all new impedance protection relays installed on the D.C. Electrified Lines. Purpose This specification states the requirements for the design, manufacture and testing...

References

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