| 发明名称 |
PILOT WIRE PROTECTIVE ARRANGEMENT FOR ALTERNATING CURRENT SYSTEM WHEREIN RELAY OPERATING AND RESTRAINT SIGNALS ARE DERIVED DURING HALF CYCLES OF OPPOSITE POLARITIES |
| 摘要 |
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| 申请公布号 |
US3497772(A) |
申请公布日期 |
1970.02.24 |
| 申请号 |
US19670610049 |
申请日期 |
1967.01.18 |
| 申请人 |
WESTINGHOUSE ELECTRIC CORP. |
发明人 |
HERBERT W. LENSNER;JOHN E. HAGBERG |
| 分类号 |
H02H3/30;(IPC1-7):H02H3/28;H02H7/26;H02H7/00 |
主分类号 |
H02H3/30 |
| 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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