Device for controlling at least one vhv or uhv circuit...

Details Device for controlling at least one vhv or uhv circuit... Device for controlling at least one vhv or uhv circuit...

H - Electricity

02

H

348/36

H02H 3/093 (2006.01) H02H 3/16 (2006.01) H02H 3/20 (2006.01)

Patent

CA 1241426

ABSTRACT OF THE DISCLOSURE A device for controlling at least one very-high- voltage or ultra-high-voltage circuit breaker in response to a fault signal, which control device comprises a circuit for detecting the fault signal and for time-delaying the same to produce a trip signal. A low power electromechanical relay is energized in response to the trip signal to close its contacts very rapidly and without rebound. Each circuit breaker is associated with an electronic power amplifier responsive to the closure of the contacts of the low power relay to supply the corresponding circuit breaker with a current which causes opening of the latter. Each circuit breaker is therefore opened very rapidly upon occurrence of the trip signal due to the electronic structure of each power amplifier and the very fast , without rebound operation of the low power electromechanical relay.

483577

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