发明授权
- 专利标题: Power distribution system and electrical switching apparatus employing a filter trap circuit to provide arc fault trip coordination
- 专利标题(中): 配电系统和电气开关装置采用滤波器捕获电路提供电弧故障跳闸协调
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申请号: US12337093申请日: 2008-12-17
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公开(公告)号: US08040644B2公开(公告)日: 2011-10-18
- 发明人: Jerome K. Hastings , Xin Zhou , Joseph C. Zuercher , Thomas J. Schoepf , William E. Beatty, Jr.
- 申请人: Jerome K. Hastings , Xin Zhou , Joseph C. Zuercher , Thomas J. Schoepf , William E. Beatty, Jr.
- 申请人地址: US OH Cleveland
- 专利权人: Gaton Corporation
- 当前专利权人: Gaton Corporation
- 当前专利权人地址: US OH Cleveland
- 代理商 Martin J. Moran
- 主分类号: H02H3/00
- IPC分类号: H02H3/00 ; H02H9/08
摘要:
An electrical switching apparatus comprises: a first terminal; a second terminal; separable contacts electrically connected between the first terminal and the second terminal; an operating mechanism structured to open and close the separable contacts; and an arc fault trip circuit cooperating with the operating mechanism and structured to trip open the separable contacts responsive to an arc fault condition. An inductor is electrically connected in series between the first terminal and the second terminal. A capacitor includes a first lead electrically connected between the inductor and the second terminal, and a second lead electrically connected to a ground or neutral conductor. The inductor and the capacitor are structured to cooperate with a power circuit impedance downstream of the second terminal to form a filter trap circuit.
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