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NR - RT/E/S/21051 ISSUE 1

Calculation of Protection Settings for DC Circuit Breakers

inactive
Organization: NR
Publication Date: 1 October 1998
Status: inactive
Page Count: 14
scope:

This specification applies to all systems for protection of track feeder sections on 650/750 V d.c. electrified lines including auxiliary supplies to depots etc. where the track feeder circuit breakers provide the protection but excluding those installations where separate sub-circuit protection is provided.

Purpose

This specification states the requirements for the calculation of settings for protection against short circuit faults between the positive and negative circuits of track feeder sections.

Document History

December 1, 2005
Specification for calculation of protection settings for d.c. circuit breakers
This specification applies to all systems for protection of track feeder sections on 650/750 V d.c. electrified lines including auxiliary supplies to depots etc. where the track feeder circuit...
RT/E/S/21051 ISSUE 1
October 1, 1998
Calculation of Protection Settings for DC Circuit Breakers
This specification applies to all systems for protection of track feeder sections on 650/750 V d.c. electrified lines including auxiliary supplies to depots etc. where the track feeder circuit...
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