发明授权
- 专利标题： Power transfer relay circuitry and method of phase measurement
- 专利标题（中）： 功率传输继电器电路及相位测量方法
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申请号： US37680申请日： 1979-05-10
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公开(公告)号： US4256972A公开(公告)日： 1981-03-17
- 发明人: Michael A. Wyatt , Robert W. Beckwith
- 申请人： Michael A. Wyatt , Robert W. Beckwith
- 申请人地址： FL Largo
- 专利权人： Beckwith Electric Co., Inc.
- 当前专利权人： Beckwith Electric Co., Inc.
- 当前专利权人地址： FL Largo
- 主分类号： G01R29/18
- IPC分类号： G01R29/18 ; H02J3/42 ; H02J9/06 ; H02J3/08
摘要：
Power transfer relay circuitry is disclosed for providing synchronous transfer of power such as from an auxiliary source or system to a motor or motor bus; the circuitry effects the transfer of power when the phase difference between the motor bus and the auxiliary power source is very nearly zero degrees.
公开/授权文献
- US5360709A Silver halide photographic material containing a DIR compound 公开/授权日：1994-11-01
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