Distribution panel tripping during power failure
Distribution panel tripping during power failure
(OP)
Hi Mates, need your advice on this:-
I'm now having Distribution board with sensitive load(old machines). When the recovery of up-stream power supply after black out, the incoming breaker of the Distribution board is still on and the surge always damaged our machines.
In order to avoid this senario, we trying to figure out a way to trip the incoming breaker of the distribution board when the up-stream power supply failure/ black out. So that when the supply recover, the breaker will remain "off" until our technician energize the board manually.
Any kind of solution available for me to source?
Thanks.
I'm now having Distribution board with sensitive load(old machines). When the recovery of up-stream power supply after black out, the incoming breaker of the Distribution board is still on and the surge always damaged our machines.
In order to avoid this senario, we trying to figure out a way to trip the incoming breaker of the distribution board when the up-stream power supply failure/ black out. So that when the supply recover, the breaker will remain "off" until our technician energize the board manually.
Any kind of solution available for me to source?
Thanks.






RE: Distribution panel tripping during power failure
respectfully.
RE: Distribution panel tripping during power failure
Further more, do i required any backup power source like UPS in order to switch off the breaker when power failure?
Kind of confused of how it operation looks like.
Thanks again.
RE: Distribution panel tripping during power failure
Depending on the type of breaker, an undervoltage coil might/might not work. Most of the times (with an undervoltage coil internal to the breaker) you do not need any back-up power to trip the breaker. But if the undervoltage funtion will be used to drive a shunt tripcoil, you should have some kind of back-up, like batteries, capacitors, etc.
Regards
Ralph
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RE: Distribution panel tripping during power failure
RE: Distribution panel tripping during power failure
Could educate me more on how to figure out the undervoltage coil is an internal type or shunt trip coil type?
Thanks.
RE: Distribution panel tripping during power failure
Larger units are energised to operate and need either batteries or capacitors to trip the breaker.
All of them are braeker specific. Contact the breaker manufacturer to determine if under voltage trips are available for your breakers.
respectfully
RE: Distribution panel tripping during power failure
RE: Distribution panel tripping during power failure
Any brand to be recommended for my application?
RE: Distribution panel tripping during power failure
GE, Cutler Hammer, Square D, Siemens, and others all make good circuit breakers. Find out what type of breaker you have in the existing panel and try to match it. That will make the warranty and installation simpler.