Vacuum circuit interrupter with contact structure including supp

Details Vacuum circuit interrupter with contact structure including supp Vacuum circuit interrupter with contact structure including supp

1999-07-16

2000-12-19

Scott, J. R.

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Vacuum

218128, 218127, H01H 3366

Patent

active

061630020

ABSTRACT:
The present invention relates to an interrupter for a circuit breaker for a transmission or distribution line which can distribute and weaken an arc resulting from separation of contacts, can reduce loss of the contacts by the arc, and can improve interruption performance, when an abnormal current such as overcurrent is generated. A plurality of horizontal loops of conductive path are formed on a fixed electrode and a movable electrode, thereby forming a plurality of vertical magnetic fields in parallel with a generation direction of the arc. When the arc is generated between a fixed contactor and a movable contactor respectively connected to the fixed electrode and the movable electrode, the arc can be evenly distributed on the fixed and movable contactors. At the same time, a movement of the arc can be interrupted.

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patent: 5438174 (1995-08-01), Slade
patent: 5461205 (1995-10-01), Schulman

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