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VAC means volts AC, and is a measure of the voltage in an AC circuit.
KVA means kilovolt-amperes, and is a measure of the power in a circuit. For a resistive load, KVA is the same as KW, or kilowatts.
The two terms are not related in that you can not compare one to another without also knowing the current flowing in the AC circuit. VAC * IAC = KVA, when all values are in RMS (not peak to neutral or peak to peak quantities).
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What would the input current be for a 275 kva transformer with 2 phase of a 480 vac in and 120 vac at 20 amp output?
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You have two devices that are rated at 230 VAC single ph and your supply voltage is 480 VAC 3 ph you need a 480 VAC 3 phase to 230 VAC three phase xfrmer how do you calculate the xfrmer size?
The transformer size is calculated by using the load current that is required on the secondary side of the transformer. This secondary current is multiplied by the secondary voltage times 1.73. This total is then divided by 1000 to give you KVA. KVA = I x E x 1.73/1000.
200 amp equals how much kva?
200 amps is equal to zero kva. To answer this question a voltage is needed.
How many kva in 14 amp?
There is appoximately zero kVA in 14amp, .5 volt AC.
600 volts is how many KVA?
It is apples and oranges--kVA and volts are different units describing different things. Determining kVA requires measuring both voltage and current.
