Improved gas-accumulation Buchholz relay

(19)

(11)

EP 0 945 951 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	07.06.2000 Bulletin 2000/23

(43)	Date of publication A2:
	29.09.1999 Bulletin 1999/39

(21)	Application number: 99104056.9

(22)	Date of filing: 17.03.1999

(51)	International Patent Classification (IPC)⁷: H02H 5/08

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

(30)

Priority:

24.03.1998 IT PD980061

(71)	Applicant: COMEM S.p.A.
	36054 Montebello Vicentino (Vicenza) (IT)

(72)	Inventor:
	Dal Lago, Silvio 36100 Vicenza (IT)

(74)	Representative: Modiano, Guido, Dr.-Ing. et al
	Modiano & Associati SpA Via Meravigli, 16 20123 Milano 20123 Milano (IT)

(54)	Improved gas-accumulation Buchholz relay

(57) A gas-accumulation Buchholz relay, which comprises, to be immersed in an oil bath, a supporting frame (23) for magnetic switches (27) for closing circuits and at least one movable device (28,29) of the float type for actuating the switches. The relay is characterized in that the float (30) is of the lever type with a rotation axis which is fixed to the frame (23) and is operatively connected to a magnet holder which acts as a counterweight. The float (30) is articulated in its rotation with respect to the magnet holder through a given angle.

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