公开(公告)号：US3895287A

公开(公告)日：1975-07-15

申请号：US47533474

申请日：1974-05-30

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： SUN SHAN C ,  VERCELLOTTI LEONARD C

IPC: G05F1/153 ,  G05F1/00

CPC classification number: G05F1/153

Abstract: A voltage regulating relay in which the dead-band voltage width is determined by the amplification of the difference or error signal supplied to a comparator which maintains constant upper and constant lower comparing voltages.

Abstract translation: 一种电压调节继电器，其中死区电压宽度由提供给比较器的差分或误差信号的放大确定，该比较器保持恒定的上部和恒定的较低比较电压。

公开(公告)号：US3678339A

公开(公告)日：1972-07-18

申请号：US12787471

申请日：1971-03-25

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： SUN SHAN C ,  RAYGOR PAUL O

IPC: A47G25/40 ,  G01R15/14 ,  G02B6/44 ,  H01H33/42 ,  H02H1/00

CPC classification number: H02H1/0069 ,  G01R15/14 ,  G02B6/442 ,  H01H33/423

Abstract: An apparatus for providing power for transmitting relaying signals from an extra high voltage transmission line to ground potential which avoids the use of a high cost current transformer and which is immediately effective to provide such signals when the transmission line is initially energized to protect such line if it is energized when a fault is present. The apparatus supplies the power from ground potential to line potential by means of sonic quantity transmitted from a first transducer to a second transducer through an elongated rod-like insulating member which preferably is caused to vibrate at its resonant frequency.

Abstract translation: 一种用于提供电力的装置，用于将继电信号从超高压传输线传输到地电位，避免使用高成本电流互感器，并且当传输线最初被通电以立即有效地提供这种信号以保护这样的线路，如果 当故障存在时，它被通电。 该装置通过优选地以其谐振频率振动的细长的杆状绝缘构件，通过从第一换能器传递到第二换能器的声量将地电位的电力提供到线电位。