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solanki_jigar
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WHAT IS KVA

04/07/2009 12:31 AM

WHAT IS KVA ?
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Sapper
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#1

Re: WHAT IS KVA

04/07/2009 1:12 AM

Please refer to the last time You asked this question.

The answer is still the same.

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Sapper

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PWSlack
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#2

Re: WHAT IS KVA

04/07/2009 3:06 AM

A load of capitals, akin to SHOUTING, that some readers might consider rather rude.

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Chris Leonard
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#3

Re: WHAT IS KVA

04/07/2009 7:40 AM

refer to http://cr4.globalspec.com/thread/21087

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EElectrician
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#4

Re: WHAT IS KVA

04/07/2009 12:06 PM

KVA stands for Kilo Volt Amps. The term is used when talking about and sizing equipment for power generation and distribution (transformers and power lines). The more common term Watts is used when refering to power use and consumption.

The VA part refers to the mathematical equation for figuring out the amount of power that a generator can reliably produce:

Volts * Amps = VoltAmps ; V*A = VA.

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Anonymous Poster
#6
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Re: WHAT IS KVA

12/06/2009 10:51 AM

so how much of a difference are kva and watts?
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Curious George
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#5

Re: WHAT IS KVA

04/08/2009 11:12 AM

The answer Eelectrician gave is correct, but to add to it:

Kilo is a metric prefix that refers to 1000 times, so:

600 Volts x 10 Amps = 6000 VA or 6000 Watts or 6 KVA or 6 KiloWatts

Usually anything under 1000 is still referred to as watts, but in the electrical field KVA is used whereas KW is more common in electronics for anything over 1000.

The use of VA and KVA seems to be becoming more and more common recently. I think that maybe this is because of the use of mathematical units. For example, in the mechanical arena we use inch-pounds for torque (Imperial) or pound-inch-seconds^2 for mass moments, etc. We do not give a different name for the combination of two units, which is precisely what a watt is, another name for the combination of Volt-Amp. It causes confusion for the mathematically inclined,,,, maybe that's a good thing.

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