MOLDED case breaker commissioning
MOLDED case breaker commissioning
(OP)
Hello All,
I asked a consultant to do a arc flash study on a 1600 A 120/208 switchboard. Unit has molded case circuit breakers with
Schneider Micrologic 6.0 P trip unit. i need some input in testing these breakers for commissioning using primary injection.
I will not be testing it myself but just curious if I pick some two test points on long time curve for field crew to test, how would the heating of 1st test point impact the results/timings of second point on the curve.
Any tips to address this issue.
I asked a consultant to do a arc flash study on a 1600 A 120/208 switchboard. Unit has molded case circuit breakers with
Schneider Micrologic 6.0 P trip unit. i need some input in testing these breakers for commissioning using primary injection.
I will not be testing it myself but just curious if I pick some two test points on long time curve for field crew to test, how would the heating of 1st test point impact the results/timings of second point on the curve.
Any tips to address this issue.






RE: MOLDED case breaker commissioning
http://products.schneider-electric.us/support/tech...
RE: MOLDED case breaker commissioning
You don't pick random test points, NEMA, NETA, and ANSI have standard test values for each function. Your best bet is to just check the qualifications of the testing company and make sure if they quoted primary injection they do primary injection, if they try and just do secondary injection tests call them out on it.
RE: MOLDED case breaker commissioning