Early detection and protection of fault arcs based on multi-signals

Jian-hong Yang; Huai-ying Fang; Ren-cheng Zhang

doi:10.1117/12.819596

31 December 2008 Early detecting and protecting of fault arcs based on multi-signals

Jian-hong Yang, Huai-ying Fang, Ren-cheng Zhang

Proceedings Volume 7130, Fourth International Symposium on Precision Mechanical Measurements; 71301M (2008) https://doi.org/10.1117/12.819596
Event: Fourth International Symposium on Precision Mechanical Measurements, 2008, Anhui, China

Abstract

In switch tank, fault arcs are constant and disastrous trouble. At the present time, the protecting project of fault arcs function after generating aflame arcing, which does not avoid of generating major fault arcs. Switch tank and electric facilities must be destructed by major fault arcs. In the paper, simulation experimentations indicate that the method based on lyapunov exponents can extract arc sounds inundated background of complicate noise. With arc sounds generated before major fault arcs, the early alarm system of fault arcs is established by arc sounds, which avoids endangerment brought about by major fault arcs. There are arc sounds before generating major fault arcs. The protecting system sends out early alarm signals by detecting arc sounds. When major fault arc is generated, the protecting system sends out alarm signals by arc sounds, short circuit current and arc lights. So, the protecting system of fault arcs is established by multi-criteria. The protecting project can act as double protection to fault arcs.

Citation Download Citation

Jian-hong Yang, Huai-ying Fang, and Ren-cheng Zhang "Early detecting and protecting of fault arcs based on multi-signals", Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 71301M (31 December 2008); https://doi.org/10.1117/12.819596

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