H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/215
H01H 33/66 (2006.01)
Patent
CA 1143770
ABSTRACT OF THE DISCLOSURE: Vacuum type electric circuit interrupter compris- ing a highly evacuated envelope which includes at least one inorganic insulating cylinder connected by two metallic tubes made of magnetic material or ferromagnetic material, a pair of relatively movable contacts disposed within the envelope in a location and a device for eliminating magnetostriction of the metallic tubes. This device comprises a magnetic flux generating member for supplying magnetic flux to the metallic tube. The noise generated from the vacuum circuit interrupt- er is, accordingly, eliminated by means of a magnetic field applying member for applying previously the magnetic field to the metallic tube or by increasing the magnetic reluctance of the metallic tube.
348051
Hashimoto Takahumi
Innami Yoshiyuki
Kabushiki Kaisha Meidensha
Robic Robic & Associes/associates
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