发明公开
- 专利标题: ZERO-PHASE-SEQUENCE CURRENT TRANSFORMER, GROUND-FAULT CURRENT DETECTION DEVICE, POWER CONDITIONER, AND METHOD OF DETECTING MALFUNCTION OF ZERO-PHASE-SEQUENCE CURRENT TRANSFORMER
- 专利标题(中): 电流互感器无相序设备接地故障电流的检测,电力供给者与故障检测方法电流互感器无相序
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申请号: EP13833373申请日: 2013-08-29
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公开(公告)号: EP2892062A4公开(公告)日: 2016-05-04
- 发明人: TAKENAKA TETSUYA
- 申请人: KYOCERA CORP
- 专利权人: KYOCERA CORP
- 当前专利权人: KYOCERA CORP
- 优先权: JP2012189308 2012-08-29
- 主分类号: H01F38/28
- IPC分类号: H01F38/28 ; G01R31/02 ; H02H3/16 ; H02H3/33
摘要:
An abnormality occurring in a ZCT is detected simply and reliably. A zero-phase-sequence current transformer (ZCT) (11) detects zero-phase-sequence current in power wires inserted therethrough, and in addition to the power wires, has inserted therethrough a wire through which a constant DC offset current flows.
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