2006-12-31 02:40:36 · 11 answers · asked by rhimik2000 1 in Science & Mathematics ➔ Engineering
"kva" is kilovolt-ampere, so that is a unit of power, not of current. If you know the voltage, you can divide the kva by the voltage, and multiply by 1000 to get the amperage.
2006-12-31 02:50:26 · answer #1 · answered by Vincent G 7 · 0⤊ 0⤋
kva=1000 watts divide by the voltage=the amp
2007-01-02 11:37:38 · answer #2 · answered by tugboat 4 · 0⤊ 0⤋
This is a little more complex than previous answers suggest.
KVA is a measure of "apparent power" units are volt-amps which are equivalent to watts, and simply
amps = KVA/1000/volts
Think about
"apparent power" x power factor = "real power"
Suggest you look at this link
http://en.wikipedia.org/wiki/Kva
2007-01-02 06:22:29 · answer #3 · answered by geoff b 2 · 0⤊ 0⤋
a kva = 1000 X volts X amps
so, divide by volts to get 1000 X amps.
BTW, a kva = 1000 X watt = kW
2006-12-31 03:58:25 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Would like to say that I agree with Mark G’s comments whole heartedly and feel I should point out that all the other answers pay scant regard for the upper or lower case they use.
This is very important in scientific matters as the case changes the meaning significantly. K = Kelvin where as k = kilo, v = instantaneous potential or velocity, V = voltage, a = acceleration and A = ampere.
Sorry to be picky but I think most of us using this website do so to gain knowledge, I hope you will see this comment as useful and constructive rather than unhelpful criticism.
2007-01-02 08:12:57 · answer #5 · answered by wizatronic 1 · 0⤊ 0⤋
kVA =V x I
Power is voltage times current
kW is as above but less power factor losses.
kW =V x I x cos 0
Power is voltage times current
so if you have 250V volts and a 2kVA load then
I= kVA/V
(above formula transposed by dividing both sides of the formula by V)
8 A = 2000VA /250 V
hope this helps
2007-01-01 05:04:54 · answer #6 · answered by Mark G 2 · 0⤊ 0⤋
kva means kilovolt-amps, or volts times amps divided by 1000 = (V x A) ÷ 1000
2016-03-29 01:58:21 · answer #7 · answered by Anonymous · 0⤊ 0⤋
kva is a unit of power and amps is a unit for current the two can not be interconverted
2006-12-31 04:22:30 · answer #8 · answered by p 3 · 0⤊ 0⤋
Really quick rule of thumb to check your calculations.
If its single phase IE 230/240V then multiply the K number by 4 in your head so 25KVA = 25 x 4 = 100A
If its three phase IE 400/415V multiply by 4 then divide by 3
so 90KVA = 90 x 4 = 360A then divide by 3 = 120A.
2007-01-03 08:29:55 · answer #9 · answered by Andy S 2 · 0⤊ 0⤋
kVA / V = A
2006-12-31 02:48:44 · answer #10 · answered by Anonymous · 1⤊ 0⤋