I am a industrial mechanic, have been for going on two years now, I am learning about three phase voltage systems, my question is this, I have at work 3 phase 240 VAC and I have to use leg 1 and leg 3 to go to the high side of a transformer (the side that is marked H1, H2, H3, H4), Is this considered single phase or two phase or three phase? And I looked up the formula for KVA and it doesn't tell when to use 1, 2 or 3 phase.
I am trying to put a 120 volt AC plug on a 240 volt 3 phase piece of equipment by installing a transformer and using leg 1 and 3 on the primary and have it step down the voltage on the secondary to single phase 120V for a outlet to run a 7 amp hand grinder and I am trying to figure out the KVA needed.
Any help would be appreciated.
Thanks Rick
I am trying to put a 120 volt AC plug on a 240 volt 3 phase piece of equipment by installing a transformer and using leg 1 and 3 on the primary and have it step down the voltage on the secondary to single phase 120V for a outlet to run a 7 amp hand grinder and I am trying to figure out the KVA needed.
Any help would be appreciated.
Thanks Rick