发明名称 |
Power transfer relay circuitry and method of phase measurement |
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.
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申请公布号 |
US4256972(A) |
申请公布日期 |
1981.03.17 |
申请号 |
US19790037680 |
申请日期 |
1979.05.10 |
申请人 |
BECKWITH ELECTRIC CO., INC. |
发明人 |
WYATT, MICHAEL A.;BECKWITH, ROBERT W. |
分类号 |
G01R29/18;H02J3/42;(IPC1-7):H02J9/06;H02J3/08 |
主分类号 |
G01R29/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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