The utility is feeding a site with (6) 2000kVA transformers which are paralleled together. Transformer Voltages are 13.2kV/277V-480V, %Z=6.02%. The switchgear downstream of the transformers are rated at 200kAIC.
I want to install a piece of equipment which has a main breaker that is rated at only 65kAIC.
The fault current at the equipment location has been calculated to be 150kAIC.
We are thinking about inserting a current limiting or semiconductor type fuse ahead of the equipment.
What would you reccommend?
I want to install a piece of equipment which has a main breaker that is rated at only 65kAIC.
The fault current at the equipment location has been calculated to be 150kAIC.
We are thinking about inserting a current limiting or semiconductor type fuse ahead of the equipment.
What would you reccommend?