Moving mains arc movement loop

Details Moving mains arc movement loop Moving mains arc movement loop

1988-09-08

1990-05-15

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200146R, H01H 3318

Patent

active

049260189

ABSTRACT:
A contact blade for a circuit breaker configured such that the current path in the blade produces a magnetic field which affects an arc present at the contact of the blade. The configuration of the blade produces a substantially U-shaped current loop in the blade, wherein one leg of the current loop has its main component substantially parallel to, but in the direction opposite to, the main component of the current in the second leg of the loop. When an arc is formed at the contact, the current from the second leg flows through the contact and into an arc, while the current in the first leg of the loop produces a magnetic field which acts upon the arc and forces the arc off of and away from the contact.

REFERENCES:
patent: 2777921 (1957-01-01), Latour
patent: 3192344 (1965-06-01), Cole
patent: 3345485 (1967-10-01), Engel
patent: 3585329 (1971-06-01), Walker et al.
patent: 4635012 (1987-01-01), Kohanawa et al.
patent: 4672157 (1987-06-01), Neel et al.

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