发明授权
- 专利标题： Device for limiting switching frequency of a parallel capacitor reactive power compensation network
- 专利标题（中）： 用于限制并联电容器无功补偿网络开关频率的装置
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申请号： US22789申请日： 1987-03-06
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公开(公告)号： US4771225A公开(公告)日： 1988-09-13
- 发明人: Tadashi Nishikawa
- 申请人： Tadashi Nishikawa
- 申请人地址： JPX Kawasaki
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JPX Kawasaki
- 优先权： JPX61-65920 19860326
- 主分类号： G05F1/70
- IPC分类号： G05F1/70 ; H02J3/18 ; G05F5/00
摘要：
A reactive power compensation device has minimum residual reactive power and avoid hunting. The compensation device is connected to an AC power supply network with a variable reactive load. Capacitor banks are connected in parallel with the load, and a pertinent number of banks are switched on and off periodically at a pre-determined time interval. The reactive power in both the load and the capacitor banks are detected and used for controlling the capacitor banks.
公开/授权文献
- USD356253S Box for shipping asparagus 公开/授权日：1995-03-14