A.繞組絕緣介質(zhì)損耗因數(shù) B.支架絕緣介質(zhì)損耗因數(shù) C.油中溶解氣體分析 D.氣體密度繼電器校驗
A.10%-100% B.5%-50% C.2%-20% D.1%-10%
A.30,1 B.45,2 C.45,3 D.60,3