Abstract

Dry-type air-core shunt reactors are now being used more frequently on high voltage power transmission systems to limit overvoltages. Recently, high voltage dry-type air-core shunt reactors have been designed, manufactured and installed directly connected to the transmission systems at voltages up to and including 345 kV. Applications at 500 kV are presently being considered. These ratings require appropriate analysis in terms of switching transient overvoltages and electrical and magnetic clearances since dry-type air-core reactors have some saliently unique characteristics as compared to traditionally applied liquid-immersed units.

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