Circuit Breaker Instantaneous Settings
Circuit Breaker Instantaneous Settings
(OP)
I have a breaker with three instantaneous settings on it. I don't understand the concept behind this...
Why do I need to adjust all three settings for motor protection?
This is a thermal magnetic molded case circuit breaker.
I appreciate your responses.
http://w ww.sea.sie mens.com/c ircuit/pro duct/Circu itBreakers /Instructi on%20Guide %20JD%20&a mp;%20LD%2 0Frame%20R ev%20D.pdf
Why do I need to adjust all three settings for motor protection?
This is a thermal magnetic molded case circuit breaker.
I appreciate your responses.
http://w






RE: Circuit Breaker Instantaneous Settings
RE: Circuit Breaker Instantaneous Settings
JRaef.com
Eng-Tips: Help for your job, not for your homework Read FAQ731-376
RE: Circuit Breaker Instantaneous Settings
I mean only one setting would be enough.
What will be the application of setting those adjustments differently?
Thanks JRaef.Com I read the FAQ731-376
RE: Circuit Breaker Instantaneous Settings
RE: Circuit Breaker Instantaneous Settings
If one pole is set too low, it may occasionally trip the breaker on the first quarter cycle inrush current, depending on the point in the cycle that that pole is energised.
respectfully
RE: Circuit Breaker Instantaneous Settings
RE: Circuit Breaker Instantaneous Settings
RE: Circuit Breaker Instantaneous Settings
RE: Circuit Breaker Instantaneous Settings
RE: Circuit Breaker Instantaneous Settings
JRaef.com
"Engineers like to solve problems. If there are no problems handily available, they will create their own problems." Scott Adams
For the best use of Eng-Tips, please click here -> FAQ731-376