| 摘要 |
A vacuum interrupter of improved large current interrupting capability and dielectric strength has a pair of separable electrodes (5,6) a vacuum envelope (4) electrically insulating and enclosing the pair therewithin, a contact-making portion (14) of material of 20 to 60% IACS electrical conductivity being a part of one electrode (6) of the pair, a magnetically arc-rotating portion (13) of material of 2 to 30% IACS electrical conductivity secured to the contact-making portion (14) so as to be apart from the other electrode (5) when the electrodes (5,6) are in engagement, and means, which include a plurality of slots extending radially and circumferentially of the magnetically arc-rotating portion (13) and being apart from each other, for magnetically rotating the arc established between the electrodes (5,6) on an arcing surface of the electrode (6). |
