operating cycle of h.v circuit breaker
operating cycle of h.v circuit breaker
(OP)
How many open close open ... cycle can achieve a circuit breaker? This cycle changes or not?
As far as i know this cycle is for one charge of motor
open-close-open (three move)
i want to ask if close spring can charge the open spring more than once???
for example without charging with motor, the circuit breaker can have a cycle like this : o-c-o-o-c.....(more than three move)
Pls inform me...
As far as i know this cycle is for one charge of motor
open-close-open (three move)
i want to ask if close spring can charge the open spring more than once???
for example without charging with motor, the circuit breaker can have a cycle like this : o-c-o-o-c.....(more than three move)
Pls inform me...






RE: operating cycle of h.v circuit breaker
As you wrote standard cycle is O-C-O only.
Usually, HV CB have only one spring, not close and open spring.
Im not heard about cycle O-C-O-O-C, but you have ask mnf.
Best Regards.
Slava
RE: operating cycle of h.v circuit breaker
pls inform me
best regards...
RE: operating cycle of h.v circuit breaker
Hydraulic mechanisms and pneumatic mechanisms generally store enough pressure to do several close and open operations, usually at least three, before the reserve pressure is too low.
old field guy
RE: operating cycle of h.v circuit breaker
They have one or double spring??
and what kinda cycle have they??
RE: operating cycle of h.v circuit breaker
For example, a Siemens Type SDV-2 has a rated duty cycle of O-0.3S-CO-15S-CO-15S-CO-15S-CO. After the first trip (O), it can close and immediately trip (CO) after a 0.3 second delay. Then it can have three additional reclose/trip operations after a 15 second delay each.
RE: operating cycle of h.v circuit breaker
A hypothetical breaker that may be closed but not immediately opened is a scary thought.
Bill
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"Why not the best?"
Jimmy Carter
RE: operating cycle of h.v circuit breaker
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