Position:To assure transformer and the safety of the equipment that use phone, transformer of voltage of out of service answers when discovering one of following cases, undertake checking.
(Fume of 1) voltage transformer or give out anxious stink.
(Interior of 2) voltage transformer has discharge sound or other different news, there is discharge scintilla between down-lead and crust.
(3) crust is calorific, allow temperature more than.
(4) serious leakage is oily, the oneself in oily mark cannot see fat face.
(After 5) fuse fuse-element changes again fusing.
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