Title :
750-mva metal-clad switchgear
Author :
Torbit, J. G. ; Troischt, E. M.
Author_Institution :
General Electric Company, Philadelphia, Penna.
fDate :
6/1/1957 12:00:00 AM
Abstract :
Metal-clad SWITCHGEAR using magnetic-type power circuit breakers has had a top limit of 500 mva (megavolt-amperes) interrupting capacity for some time. However, studies begun in the early 1950´s indicated that the loads to be expected in the foreseeable future required area substations with mva ratings about 50 to 65% larger than those obtainable with the 13.8-kv 500-mva breaker equipment. A 750-mva equipment will permit an increase in substation size within this range.
Keywords :
Circuit breakers; Floors; Insulation; Solenoids; Substations; Windings;
Journal_Title :
Electrical Engineering
DOI :
10.1109/EE.1957.6442567
