发明公开
- 专利标题： REDUCTION OF HARMONICS IN AC MACHINES
- 专利标题（中）： 降低谐波交流电源机
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申请号： EP97924461.0申请日： 1997-05-27
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公开(公告)号： EP0900464A1公开(公告)日： 1999-03-10
- 发明人: GERTMAR, Lars
- 申请人： ASEA BROWN BOVERI AB
- 申请人地址： 721 83 Västeras SE
- 专利权人： ASEA BROWN BOVERI AB
- 当前专利权人： ASEA BROWN BOVERI AB
- 当前专利权人地址： 721 83 Västeras SE
- 代理机构： Dahlstrand, Björn, et al
- 优先权： SE19960002078 19960529
- 国际公布： WO1997045906 19971204
- 主分类号： H02J3
- IPC分类号： H02J3
摘要：
Connection arrangements for reducing the effect of third-harmonic voltages in case of direct connection of AC machines (1) to a three-phase distribution or transmission network (5), wherein the stator winding of the AC machine is Y-connected and wherein the neutral point of the winding (2) is available, comprising a suppression filter (14) tuned to the third harmonic, with an overvoltage protection device (17) arranged between the neutral point (2) and ground of the power network (4).
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