High-voltage switches with arc preventing or extinguishing devic – Arc preventing or extinguishing devices – Resistance inserting
Patent
1995-03-28
1996-10-22
Donovan, Lincoln
High-voltage switches with arc preventing or extinguishing devic
Arc preventing or extinguishing devices
Resistance inserting
335 6, H01H 930
Patent
active
055679242
ABSTRACT:
A circuit breaker with parallel resistor which can satisfy contradictory requirements to induce a preliminary discharge at the time of closing action and to maintain a high interelectrode insulation at the time of interrupting action has been provided in a simple and compact size. The circuit breaker of the invention includes movable unit 41 and stationary unit 31 both on the side of main contact S1, and movable unit 21 and stationary unit 11 both on the side of resistance closing contact S2, wherein the movable unit 21 on the side of the resistance closing contact S1 comprises shield 23 which is adapted either to move lagging behind the movement of movable electrode 22 or to open at its front side during closing action of the circuit breaker such that a preliminary discharge is readily generated between the movable electrode 22 and the stationary electrode 23 in precedence to the main contact. On the other hand, during interrupting action, the shield 23 returns to its original state to enclose the front end portion of the movable electrode 22 thereby to enhance its field relaxation effect and suppress any discharge therefrom.
REFERENCES:
patent: 4539448 (1985-09-01), Schulz
patent: 5225642 (1993-07-01), Yamamoto et al.
patent: 5391930 (1995-02-01), Ohshita et al.
Tsukushi Masanori
Yaginuma Noriyuki
Yano Makoto
Donovan Lincoln
Hitachi , Ltd.
LandOfFree
Circuit breaker with parallel resistor 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 with parallel resistor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit breaker with parallel resistor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2360139