发明名称 |
Negative sequence compensation for polyphase equipment |
摘要 |
Negative sequence compensation apparatus for reducing, and thereafter minimizing the increase of, negative sequence currents flowing in a three phase motor includes variable impedance elements, and means for adjusting the impedance thereof, disposed in the motor supply lines. Alternate embodiments disclose saturable reactors as the variable impedance elements electrically connected with the supply terminals by way of alternate transformer connections.
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申请公布号 |
US4025834(A) |
申请公布日期 |
1977.05.24 |
申请号 |
US19750579893 |
申请日期 |
1975.05.22 |
申请人 |
ESCO MANUFACTURING COMPANY |
发明人 |
MCCLAIN, JAMES E.;SCOTT, HOWARD L. |
分类号 |
H02P27/02;(IPC1-7):H02P7/40 |
主分类号 |
H02P27/02 |
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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