Solid state control device for an anti-pump circuit

Details Solid state control device for an anti-pump circuit Solid state control device for an anti-pump circuit

1997-02-28

1999-09-14

Sherry, Michael J.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With manual or automatic opening of breaker and manual reclose

361115, H02H 100

Patent

active

059531924

ABSTRACT:
A solid state control system for controlling activation signals to circuit breaker electro-mechanical close coils is disclosed. The system employs a novel arrangement of a silicon controlled rectifier (SCR) and other electronic components, such as a FET, to provide "anti-pump." The system locks out continuous close signals until after the close signal has been removed and then reapplied.

REFERENCES:
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patent: 4185208 (1980-01-01), McMillen, Jr. et al.
patent: 4234917 (1980-11-01), Suzuki et al.
patent: 4390831 (1983-06-01), Byrd et al.
patent: 4423477 (1983-12-01), Gurr
patent: 5510943 (1996-04-01), Fukunaga
patent: 5734543 (1998-03-01), Turner
"American National Standard Requirements for Electrical Control for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis or a Total Current Basis," ANSI/IEEE, C37.11-1979, p. 5; C37-09-1979, p. 51.

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