DocumentCode
1038880
Title
A New 69-Kv Air Blast Circuit Breaker
Author
Shores, R.B. ; Beatty, J.W.
Author_Institution
General Electric Company, Philadelphia, Pa.
Volume
70
Issue
1
fYear
1951
fDate
7/1/1951 12:00:00 AM
Firstpage
202
Lastpage
208
Abstract
A new air-blast circuit breaker rated at 69 kv, 2,000 amperes, 3,500 megavolt-amperes (mva) has been developed for outdoor service on the lines of a large metropolitan utility. Designed as individual rollout circuit breaker poles in dust-tight, phase-isolated, outdoor metal enclosures with current transformers on the roof entrance bushings, the circuit breaker has its isolators enclosed within the air blast columns for more reliable operation under icing conditions for future application of the circuit breaker as outdoor porcelain-clad units. Recovery voltage control resistors are used to insure satisfactory performance of the circuit breaker at any circuit recovery rate which may arise on any system in this country.
Keywords
Circuit breakers; Circuit testing; Current transformers; Insulators; Interrupters; Isolators; Resistors; Switches; Switchgear; Voltage;
fLanguage
English
Journal_Title
American Institute of Electrical Engineers, Transactions of the
Publisher
ieee
ISSN
0096-3860
Type
jour
DOI
10.1109/T-AIEE.1951.5060388
Filename
5060388
Link To Document