Device for actuating opening/closing commands for a high-voltage circuit breaker

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(11)

EP 0 854 488 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	24.11.1999 Bulletin 1999/47

(43)	Date of publication A2:
	22.07.1998 Bulletin 1998/30

(21)	Application number: 98200072.1

(22)	Date of filing: 14.01.1998

(51)	International Patent Classification (IPC)⁶: H01H 1/00

(84)	Designated Contracting States:
	AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

14.01.1997 IT MI970049

(71)	Applicant: ABB ADDA S.p.A.
	20075 Lodi (IT)

(72)	Inventors:
	Lorito, Fabrizio 20135 Milano (IT) Turati, Walter 20099 Sesto San Giovanni (MI) (IT)

(74)	Representative: Giavarini, Francesco
	ABB Ricerca S.p.A. Viale Edison, 50 20099 Sesto San Giovanni (MI) 20099 Sesto San Giovanni (MI) (IT)

(54)	Device for actuating opening/closing commands for a high-voltage circuit breaker

(57) Device for actuating opening/closing commands for a high-voltage circuit breaker, the special feature of which consists in the fact that it comprises, for each pole of the circuit breaker, pulse generating means designed to generate a pulse after receiving a command for opening/closing of a circuit breaker and oscillator means designed to convert the pulse into a train of pulses for driving transformer means which are arranged in series with the oscillator means and the output signals of which cause opening or closing of one or more circuit switching means so as to allow the supplying of voltage to a coil actuating the commands for opening/closing the respective pole associated therewith.

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