The new method of monitoring DC system insulation on-line
Industrial Electronics Society, 2001. IECON '01. The 27th Annual Conference of the IEEE（2001）
摘要
A novel method of detecting an earth fault on a DC system is by the principle of magnetic modulation is proposed in the paper. The method can determine not only individual leakage loop but also the special case of both positive bus wire and negative bus wire insulation fault simultaneously by putting a resistance into the DC bus. Finally, the good results are shown in the paper. The performance of the detecting apparatus is good in the selection loop and strong in anti-interference, as well as it not showing any effect on the DC system through the experiment
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关键词
on-line monitoring,insulation testing,leakage loop,leakage currents,electric current measurement,negative bus wire insulation fault,leakage current detection,earth fault,positive bus wire insulation fault,magnetic modulating,dc system,dc system insulation,earth fault detection,power system faults,anti-interference,substations,magnetic modulation,power plants,magnetic leakage,earth,magnetic flux,voltage
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