thank you for your reply and your advice but doesn't the formula for is p/I x E (dealing with 3 phase application use square root of 3= 1.732) I am just trying to get this right...
25000/(240*1.732)=60.14
60.14*1.25=75.17 amps
Please let me know if this is correct, I will be greatly appreciate.
Hello every one I have a problem I am designing a Power distribution panel...And I have the size of the transfoermer wich i did the calculation for a three phase 25 kv @ 3 phase 480 to a 240/120v.
I know that for the primary fuse I will be using 38 amps and for the secondary is a 75 amps...
