Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Contact-actuating means
Patent
1988-10-21
1991-06-11
Scott, J. R.
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Contact-actuating means
335 16, H01H 300, H01H 7700
Patent
active
050235834
ABSTRACT:
A circuit breaker contact operating structure characterized by a circuit breaker operating mechanism having separable contacts of which one is mounted on a contact carrying arm. The arm being mounted on a one leg of a U-shaped flexible conductor. A guide link is pivotally mounted and connected to the arm to maintain the contacts in alignment during their separation. The operating mechanism having a latch for latching the arm in the closed-contact position of the arm and having a trip device for unlatching the latch in response to an overcurrent condition. The mechanism link is so placed on the contact arm structure as to effect a blow-on force on the contact structure during the duration of high overcurrent. At a preset current level, the mechanism link is prevented from applying the balancing force to the contact structure, thus allowing the blow-off forces due to the current in the contact structure to separate the contacts rapidly, and to effect current limitation and subsequent circuit interruption.
REFERENCES:
patent: 4549153 (1985-10-01), Forsell et al.
patent: 4600908 (1986-07-01), Uchida et al.
patent: 4656444 (1987-04-01), McKee et al.
patent: 4680562 (1987-07-01), Bratkowski et al.
Bhasavanich Daun
Bratkowski Walter V.
Davies Norman
Moran M. J.
Scott J. R.
Westinghouse Electric Corp.
LandOfFree
Circuit breaker contact operating structure does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Circuit breaker contact operating structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit breaker contact operating structure will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-785358