cmk1991 发表于 2017-11-4 20:56

IEC 61558-1 Annex C

IEC61558-1 Annxe C 表格如何理解呢?Through winding enamel, Other than through winding enamel如何区分, P2, P3如何区分,谢谢。

MichaelTseng 发表于 2017-11-6 11:20

谢谢分享

jazz.hu 发表于 2017-11-9 17:56

Through winding enamel, Other than through winding enamel是变压器绕线有没有浸油,P2,P3是污染等级2和3

wjl203036 发表于 2017-11-10 14:19

继续学习了
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