发明名称 |
METHOD FOR DETERMINATION OF DAMAGED FEEDER AT EARTH FAULT IN DISTRIBUTING MAINS |
摘要 |
FIELD: electricity.SUBSTANCE: zero-sequence voltage samples at common buses and zero-phase sequence current samples in each feeder of the distributing mains are fixed with the preset sampling rate. The zero-sequence voltage samples are subject to analogue-to-digital conversion, then the converted voltage is delivered to the input of a zero-sequence model for each feeder at that models are made for the normal condition of the feeders. The zero-phase sequence current is subject to analogue-to-digital conversion for each feeder model with the preset sampling rate. Mismatch between the zero-phase sequence current for each actual feeder and current samples for each model is determined. The damaged feeder is determined against the mismatch value.EFFECT: improving selectivity.4 cl, 6 dwg |
申请公布号 |
RU2516371(C1) |
申请公布日期 |
2014.05.20 |
申请号 |
RU20130104863 |
申请日期 |
2013.02.05 |
申请人 |
OBSHCHESTVO S OGRANICHENNOJ OTVETSTVENNOST'JU "ISSLEDOVATEL'SKIJ TSENTR "BRESLER" |
发明人 |
LJAMETS JURIJ JAKOVLEVICH;IVANOV SERGEJ VLADIMIROVICH;BELJANIN ANDREJ ALEKSANDROVICH |
分类号 |
G01R31/08 |
主分类号 |
G01R31/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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