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公开(公告)号：US3470418A
公开(公告)日：1969-09-30
申请号：US3470418D
申请日：1967-06-06
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： HAGBERG JOHN E , LENSNER HERBERT W
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2.发明授权Pilot wire protective arrangement for alternating current system wherein relay operating and restraint signals are derived during half cycles of opposite polarities 失效用于替代电流系统的导线保护装置在继电器操作和限制信号在非对称极地的半周期期间被导出
公开(公告)号：US3497772A
公开(公告)日：1970-02-24
申请号：US61004967
申请日：1967-01-18
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： LENSNER HERBERT W , HAGBERG JOHN E
CPC classification number: H02H3/305
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3.发明授权Time delay signal device especially for phase comparison protective relaying system 失效时间延迟信号器件特别适用于相位比较保护继电器系统
公开(公告)号：US3612952A
公开(公告)日：1971-10-12
申请号：US5109770
申请日：1970-06-30
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： HAGBERG JOHN E
CPC classification number: H02H3/302
Abstract: A phase comparison relaying network which permits the delaying of the local signal which responds to the alternating current at the local terminal of the alternating current transmission line for an interval which may be greater than the time interval of 180* of the alternating current whereby to compensate for time delay in the transmission from the remote terminal of the alternating current transmission line to the local terminal a signal responsive to the alternating current at the remote terminal when the time of transmission is greater than the 180* interval.
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