发明授权
- 专利标题: Differential protection device
- 专利标题(中): 差动保护装置
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申请号: US11987063申请日: 2007-11-27
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公开(公告)号: US07948722B2公开(公告)日: 2011-05-24
- 发明人: Mustapha Chelloug
- 申请人: Mustapha Chelloug
- 申请人地址: FR Rueil Malmaison
- 专利权人: Schneider Electric Industries SAS
- 当前专利权人: Schneider Electric Industries SAS
- 当前专利权人地址: FR Rueil Malmaison
- 代理机构: Steptoe & Johnson LLP
- 优先权: FR0611010 20061218
- 主分类号: H02H3/00
- IPC分类号: H02H3/00 ; H02H9/08
摘要:
A differential protection device comprising: differential current measuring means, processing means connected to the measuring means and comprising operating rating selection means and time delay selection means to select tripping curves, actuating means, and test means connected to the measuring means. In the protection device the test means are associated with the operating rating selection means and with the time delay selection means to select a minimum or reduced operating rating and to select a minimum or reduced time delay when said test means are actuated.
公开/授权文献
- US20080144239A1 Differential protection device 公开/授权日:2008-06-19