# How to convert amps to KVA

I need to know how many KVA is 800 amps at 208V

 donf Posts: 5,060, Reputation: 2798 Printers & Electronics Expert #2 Dec 2, 2008, 08:56 AM
166.4 kva

I*E= VA/1000 = kVA (800)*(208)/1000 = 166.4 kVA
 tkrussell Posts: 9,673, Reputation: 3698 Senior Electrical & Lighting Expert #3 Dec 23, 2008, 04:02 AM
This is incorrect:

Quote:
 Originally Posted by donf 166.4 kva Addendum: I*E= VA/1000 = kVA (800)*(208)/1000 = 166.4 kVA

208 Volt is from a 3 phase system.

Therefore:

KVA = (I x E x 1.73) / 1000
KVA = 287.872
 rangabg Posts: 3, Reputation: 10 New Member #4 Dec 3, 2009, 02:20 AM
Quote:
 Originally Posted by donf 166.4 kva Addendum: I*e= va/1000 = kva (800)*(208)/1000 = 166.4 kva

Good ans
 tkrussell Posts: 9,673, Reputation: 3698 Senior Electrical & Lighting Expert #5 Dec 3, 2009, 03:33 AM
You don't know what a transformer is by your question posted in the Electrical Forum, and you think the wrong answer is a good answer?
 Dhanajaprakas Posts: 1, Reputation: 10 Junior Member #6 Jan 22, 2012, 11:39 PM
SIR,

We have 1 500kva Gen Set three phase. from this Gen Set Maximum How much amps we can use?

 tkrussell Posts: 9,673, Reputation: 3698 Senior Electrical & Lighting Expert #7 Jan 23, 2012, 07:02 AM
The formula is:

KVA= I x E x 1.73/1000

To complete the calculation, the voltage is needed.

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