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Analysis of the radiated electromagnetic field generated by a 132 kV, SF6 circuit breaker

Moore, P.J. and Chong, V.S.H. (2002) Analysis of the radiated electromagnetic field generated by a 132 kV, SF6 circuit breaker. In: 2002 annual report conference on electrical insulation and dielectric phenomena. IEEE, New York, pp. 134-137. ISBN 0780375025

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Abstract

Field results from a 132 kV, SF6 circuit breaker (CB) using a 2.5 GSps, 1 GHz bandwidth, measuring system showed that radiated transients contained distinct frequency components at 300 MHz, 500 MHz and 840 MHz. Using a simplified NEC based model of the CB, these frequency components are shown to be related to the physical size of the breaker switching contacts.