Hello All, I was wondering if someone could help me. I hope I posted this in the right forum. Anyway, I am an electrical designer, and working on a project that needs a new 480V - 1200A service. Based on NEC 2008 240.13 - the service needs ground fault protection. So, if I specify a SQ D Micrologic 6.0A trip unit in the 1200 amp main breaker for the new service, what would you recommended for the trip settings?
? Long time pick up
? Long time delay
? Short time pick up
? Short time delay
? Instantaneous
? Ground fault pickup
? Ground fault delay
Any help would be appretiated. Thank you.
? Long time pick up
? Long time delay
? Short time pick up
? Short time delay
? Instantaneous
? Ground fault pickup
? Ground fault delay
Any help would be appretiated. Thank you.