Sabiazad
Mar 9, 2011, 08:13 AM
I am installing a fabrication unit and want to install 8 nos. 400 amps. Electric welding transformers. How much KVA power should I get installed ?
tkrussell
Mar 9, 2011, 08:30 AM
Power formlua is:
KVA= Volts x 1.73 x Amps
Amps will be:
Amps = KVA divided by ( Volts x 1.73)
You did not provide all the information needed, so I cannot complete the calculation for you.
Once you arrive at the actual total KVA value, you then need to consider any applicable derating factors to size your service or transformers.