METHOD AND SYSTEM FOR DETECTING CURRENT AND/OR VOLTAGE UNBALANCE IN MULTIPHASE POWER SUPPLY,申请号RU20000114633-传众专利搜索

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发明名称	METHOD AND SYSTEM FOR DETECTING CURRENT AND/OR VOLTAGE UNBALANCE IN MULTIPHASE POWER SUPPLY
摘要	FIELD: electronic energy meters; detection of current and voltage unbalance in power supplied to energy meters. SUBSTANCE: method involves voltage or current measurement for each phase and evaluation of respective normalized quantity as well as value of normalized phase quantities. Then high value of normalized phase quantity is compared with first threshold value and ratio of normalized phase quantities, with second threshold value. Unbalance is recognized by increase in first threshold value above high value of normalized phase quantity and by decrease in ratio of normalized phase quantities below second threshold value. EFFECT: facilitated detection of current and voltage unbalance in multiphase power supply. 19 cl, 2 dwg
申请公布号	RU2202114(C2)	申请公布日期	2003.04.10
申请号	RU20000114633	申请日期	1998.11.18
申请人	EHJBIBI PAUEH TI EHND DI KOMPANI INK.	发明人	KHABBARD VIK A.
分类号	G01R19/00;H02H3/00;H02H3/353;(IPC1-7):G01R19/00	主分类号	G01R19/00
代理机构		代理人
主权项
地址

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