Vacuum interrupter

Details Vacuum interrupter Vacuum interrupter

H - Electricity

01

H

306/215

H01H 33/66 (2006.01) H01H 33/664 (2006.01)

Patent

CA 1283151

ABSTRACT An inventive vacuum interrupter exhibits a high interruption performance. The interrupter includes a metal end plate constituting part of its vacuum envelope, and a coil disposed outside the vacuum envelope and near the metal end plate and generating an axial magnetic field parallel to a path of an arc in an arcing gap between a pair of separable contact within the vacuum envelope. The contact near the coil is made of a material superior in interruption performance to the end plate and is mounted with a clearance onto the end plate. The clearance is at least 2 mm and at most 30% of the diameter of the coil-side contact. - 35 -

509860

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