Vacuum interrupter

Details Vacuum interrupter Vacuum interrupter

H - Electricity

01

H

26/122, 306/216

H01H 33/66 (2006.01) H01H 1/02 (2006.01) H01H 11/04 (2006.01) H01H 33/664 (2006.01)

Patent

CA 1236868

ABSTRACT A vacuum interrupter of more improved large current interrupting capability and dielectric strength is disclosed. The interrupter has a pair of separable contact-electrodes (13, 24), a vacuum envelope (4) generally electrically insulating and enclosing the pair therewithin, a contact-making portion (19) of 20 to 60% IACS electrical conductivity being a part of one contact- electrode (13) of the pair and being into and out of engagement with the other contact-electrode (24) of the pair, an arc-diffusing portion (20) of 2 to 30% IACS electrical conductivity being the other part of the one contact-electrode (13) and being electrically and mechanically connected to the contact-making portion (19) so as to be spaced from the other contact-electrode (24) when the contact-electrodes (13, 24) are into engagement, and means (14, 15) for applying an axial magnetic field in parallel to an arc established between the contact- electrodes (13, 24) when separated.

449036

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