A New 69-Kv Air Blast Circuit Breaker
- 1 July 1951
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Transactions of the American Institute of Electrical Engineers
- Vol. 70 (1), 202-208
- https://doi.org/10.1109/T-AIEE.1951.5060388
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
This publication has 4 references indexed in Scilit:
- A Three-Cycle 3,500-Megavolt-Ampere Air-Blast Circuit Breaker for 138,000-Volt ServiceTransactions of the American Institute of Electrical Engineers, 1945
- Transient Recovery-Voltage Characteristics of Electric-Power SystemsTransactions of the American Institute of Electrical Engineers, 1942
- Field Tests and Performance of High-Speed 138-Kv Air-Blast Circuit BreakerTransactions of the American Institute of Electrical Engineers, 1942
- A Conserved-Pressure Air-Blast Circuit Breaker For High-Voltage ServiceTransactions of the American Institute of Electrical Engineers, 1941