The Design Based on Integrated Criterion to Faulty Line Selection for Small Current Neutral Grounding System
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Small current neutral grounding system is widely used in 3~66 kV power distribution system in China. In this power system, the single-phase to-earth fault occurs frequently in distribution, thus how to detect the fault line with great accuracy and high efficiency is an important subject in protective relaying of power system. According to a variety of existing theories of fault line selection for small-current neutral grounding system, this paper presents a new design based on integrated criterion, which has been applied in actual production.
[1] Chen Yu,et al. Earth fault protection using transient signals in non-solid earthed network , 2002, Proceedings. International Conference on Power System Technology.
[2] Jia Qing-quan. ABRUPT CHANGE DETECTION WITH WAVELET FOR SMALL CURRENT FAULT RELAYING , 2001 .
[3] Yang Han,et al. A new method of fault line selection for single-phase-to-earth falut in networks with ungrounded neutral based on zero sequence power , 2002 .