Analysis on reason of fuse fault in F-C circuit and treatment measures

Abstract

Abstract:

Abstract:The characteristics and working principle of the F-C switch circuit constituted by highvoltage currentlimited fuse and highvoltage vacuum contactor were introduced. Taking the fuse fault of F-C switch circuit of a highvoltage motor in coal conveying belt system of a power plant as example, according to analysis, it was determined that the fault reason is poor fault signal transmission between F-C switch circuit protection device and upper computer of DCS , which caused the belt motor current overload accident. Concrete treatment measures were put forward, and the safe operation of the equipment was ensured.

Key words: Key words:vacuum contactor, fuse, distributed control system (DCS), motor current overload, signal

WANG Jiqiang, SHAO Hua, YANG Jun. Analysis on reason of fuse fault in F-C circuit and treatment measures[J]. Huadian Technology, 2013, 35(6): 63-64.

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Analysis on reason of fuse fault in F-C circuit and treatment measures

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