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The Apple Grove 750-kV Project- 500-kV Switching Surge and Line Flashover Tests

1965; Institute of Electrical and Electronics Engineers; Volume: 84; Issue: 7 Linguagem: Inglês

10.1109/tpas.1965.4766228

0018-9510

H. C. Barnes, A. J. McElroy, D. F. Shankle, H. M. Smith,

Power Systems Fault Detection

Rational design of extra-high-voltage systems depends on analytic studies to predict switching surge overvoltage magnitude and probability, and on laboratory tests for tower system switching surge withstand capability. Laboratory tests have been confined to ideal waveforms applied to single window configurations. Correlation with flashover performance of a typical 3-phase installation exposed to actual switching surge waveforms is attempted. The influence of interphase coupling and multiple circuit breaker operations in promoting multiphase flashover, which may curtail system performance margins, is also studied.