Vacuum-type circuit interrupter with an improved contact...

Details Vacuum-type circuit interrupter with an improved contact... Vacuum-type circuit interrupter with an improved contact...

H - Electricity

01

H

306/218

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

Patent

CA 1118475

48,269 ABSTRACT OF THE DISCLOSURE An improved vacuum-type circuit interrupter has arc contacts which have integral axial magnetic field generating means as part of the arc contact. me axial field generating means comprises a plurality of partial coil turn portions which form an effective single turn coil disposed between a supporting plate and an arcing contact portion. The coil turns are electri- cally in series between the conductive support rod lead-in and the arcing contact perimeter portion. The supporting plate and a plurality of support pins, each of which are of high strength, low conductivity material support the partial coil turn portions and the arc contact without diverting substantial current from the coil turn portions. The axial magnetic field generating means may be structurally a part of both contacts or only one of the contacts.

340461

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