Increasing use of ring bus type circuitry led to development of standardized metal-clad switchgear units for use in ring bus type substations with following advantages: feeder is supplied by two buses, only one circuit breaker required for each circuit, any breaker can be removed from its unit without disrupting continuity of service, etc.; overall bus differential protection is possible; ring bus and double-duplex schemes compared.
Ring bus in metal-clad switchgear
Allis Chalmers Elec Rev
Allis-Chalmers Electrical Review ; 19 , n 3
1954
5 pages
Article (Journal)
English
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