发明名称 |
DEVICE FOR LIMITING ASYMMETRIC SHORT-CIRCUIT CURRENTS IN MULTIPHASE HIGH-VOLTAGE MAINS |
摘要 |
FIELD: electrical engineering and power engineering for inserting multiphase devices in neutral. SUBSTANCE: device that can be used in lines with neutral grounded in any way has circuit set up of series-connected resistor with linear current-voltage characteristic connected to neutral of multiphase ac device, resistor with nonlinear current-voltage characteristic, and current sensor, as well as switching apparatus and automatic-control unit; rated voltage of switching apparatus is below that of multiphase device neutral and rated voltage of resistor with nonlinear current-voltage characteristic does not exceed that of switching apparatus. EFFECT: reduced power loss under normal conditions; reduced mass and size of device. 3 cl, 1 dwg
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申请公布号 |
RU2216086(C1) |
申请公布日期 |
2003.11.10 |
申请号 |
RU20020104048 |
申请日期 |
2002.02.19 |
申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO "NAUCHNO-ISSLEDOVATEL'SKIJ I PROEKTNO-IZYSKATEL'SKIJ INSTITUT "TEP;LOEHLEKTROPROEKT |
发明人 |
POD"JACHEV V.N.;STOGNIJ T.A.;MAKSIMKINA N.T. |
分类号 |
H02H9/00;H02H3/20;(IPC1-7):H02H9/00 |
主分类号 |
H02H9/00 |
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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