Calculate amps from kVA
Calculate amps from kVA
(OP)
I am a poor mechanical engineer trying to figure this out..
What is the formula for determining amps for a known kVA for 3 phase power?
What is the formula for determining amps for a known kVA for 3 phase power?






RE: Calculate amps from kVA
1kva=1000va
RE: Calculate amps from kVA
RE: Calculate amps from kVA
robotguy
RE: Calculate amps from kVA
In three phase power ccts
Amps = kVA/^3xkV
Therefore for say the primary current Ip of a 3 ph 5000kVA trans rated at 13.8/0.6kV
Ip amps= 5000/^3x13.8
= 209.2 amps
Similarly the secondary current Is of the same trans would be
Is amps = 5000/^3x0.6
= 4811.2 amps
RE: Calculate amps from kVA
RE: Calculate amps from kVA
http://members.rogers.com/g.cygalski/electric.htm
It does the basic and more, no learning required.
RE: Calculate amps from kVA
It only comes into play when determining kW.
Of course, a low power factor means there may be an opportunity to correct it (using capacitors or other means), which would lower the kVA to a value closer to the kW value while simultaneously lowering amperage.
RE: Calculate amps from kVA
RE: Calculate amps from kVA