A.1.3 B.1.5 C.1.0
A.發(fā)現(xiàn)匝間絕緣的缺陷 B.發(fā)現(xiàn)繞組對鐵心間絕緣的缺陷 C.發(fā)現(xiàn)繞組對地間絕緣的缺陷
A.2.5% B.3.0% C.3.5% D.4.0%