Multiple-Grid Breakers for High-Voltage Service
- 1 August 1939
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Transactions of the American Institute of Electrical Engineers
- Vol. 58 (8) , 427-434
- https://doi.org/10.1109/t-aiee.1939.5057983
Abstract
There are occasional demands for high-voltage circuit breakers to interrupt in five cycles or less, and to meet this demand, a ``De-ion grid'' interrupter has been developed which may be used in multiple unit groups for apparatus rated 138 to 230 kv. Records of field tests up to 2,250,000 kva at 220,000 volts are given, showing interrupting times averaging 2.6 cycles (50-cycle frequency). Cathode-ray oscillograms indicate a comparatively small amount of transient overvoltage, less than would be expected from the usual magnetic oscillograph records. With the fast breaker operation, the apparent system voltage dip was small, and freedom from system disturbance and loss of synchronous equipment is noteworthy.Keywords
This publication has 3 references indexed in Scilit:
- Power-System Transients Caused by Switching and FaultsTransactions of the American Institute of Electrical Engineers, 1939
- Circuit Breakers for Boulder Dam LineTransactions of the American Institute of Electrical Engineers, 1936
- The Use of Oil in Arc Rupture With Special Reference to System StabilityTransactions of the American Institute of Electrical Engineers, 1930