Protection device for variable high power inductance for use...

Details Protection device for variable high power inductance for use... Protection device for variable high power inductance for use...

H - Electricity

02

H

336/42, 317/12.4

H02H 7/04 (2006.01) H01F 21/02 (2006.01)

Patent

CA 1210100

ABSTRACT OF THE DISCLOSURE Protection device according to the present invention for a rigid variable spiraled inductance , the inductance variation being ensured by a roller slinding on a conductive rod. According to the invention, this device comprises a second condurtive roller short-circuiting the first non-used half-turn. This second roller can be associated to another short circuit contact short circuiting two following turns of the non-used part of the inductance. Applications for this invention are HF broadcasting stations and other HF devices necessitating variable inductances to ensure tuning of a wide band of frequencies.

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