Hey all,
I have a 300kVA Marcus brand transformer with an excessively high sound output. The sound output has been metered at ~85dB, which is well over the rated 65dB. The transformer was only purchased and install a little over 1 year ago. It was physically inspected and is clean as a whistle...
I'm having some trouble!
Can someone tell me if this is right? or point out the flaw in my calculations?
If I have a bolted fault current value on the secondary of a transformer, the closest upsptream protective device will be called on to interrupt the arc. If the closest device is on the...
Hey all,
I am currently performing an arc flash analysis on our industrial plant. Am in the fault current calculation stage but am having trouble dealing with motor contribution. I understand the 4x factor on the FLA of the motor. It's the flow of the available fault current (AFC) from the motor...
