Insulation Coordination in APS 500-kV Stations

This paper presents the results of an insulation coordination study for the 500-kV Fort Martin and Yukon stations of the Allegheny Power System. The station parameters determined 1) lightning arrester rating, 2) transformer, circuit breaker, disconnecting switch, and bus support BILs, 3) minimum electrical clearances, and 4) number and location of lightning arresters.