Evaluation of Switching Surge Overvoltages on Medium Voltage Power Systems
- 1 June 1982
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. PAS-101 (6) , 1727-1734
- https://doi.org/10.1109/tpas.1982.317226
Abstract
The increasing application of vacuum circuit-breakers on utility and industrial systems has prompted a renewed and detailed investigation of vacuum switching surge mechanisms. The present paper discusses the mechanisms of switching surge phenomena, and describes how a test-validated computer program is used to establish a thorough understanding of breaker/system interaction. The program uses data on the circuit-breakers derived from several thousand measurements to determine the effects of cable length, surge protection, and MVA rating on switching overvoltage cumulative appearance probabilities of motor and transformer loads.Keywords
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