Welcome to OnlineConversion.com Forums

 OnlineConversion Forums Amps To Kilowatts
 [ Home ] [ Forum Home ] Register FAQ Calendar Search Today's Posts Mark Forums Read

 Convert and Calculate Post any conversion related questions and discussions here. If you're having trouble converting something, this is where you should post.* Guest Posting is allowed.

#31
05-13-2011, 04:37 AM
 Unregistered Guest Posts: n/a
Re: Amps To Kilowatts

Most everything that I have read here is calculating KVA, not KW. In a 3 phase system, KVA = Amps * Volts(L-L) * 1.732 (square root of 3)

The difference between KW and KVA is the power factor. In a typical motor that is fully loaded, the power factor will be somewhere in the 80% range. It decreases with load and may be somewhere around 30% in a lightly loaded motor. So:

Assuming a fully loaded 3 phase motor, KW = KVA * 0.80 (power factor). This is the amount of power that is doing useful work. The balance (KVA * 0.20) is called reactive power and is the magnetizing current required by the motor to set up the magnetic circuit inside before it can produce useful work.

Unless you have a meter that reads power factor, you are not being charged for the reactive power.
#32
09-23-2011, 02:41 AM
 Unregistered Guest Posts: n/a

What is the maximum Kw of load can 31/2 x 300 Sq.mm Al UG Armoured cable withstand ?
#33
12-11-2011, 11:01 AM
 Unregistered Guest Posts: n/a
Re: Kilowatts to amps

Quote:
 Originally Posted by mohamed i hav motor for machine 380 v /3 phas /30 kw i whant know how many amps this motor ned
kindly send me quote
#34
12-12-2011, 02:02 AM
 Unregistered Guest Posts: n/a
Re: Amps To Kilowatts

Quote:
 Originally Posted by Unregistered How Do You Determine Kilowatts From Amps? I Have 288 Amps How Do You Determine How Many Kilowatts That Is?
I have 24.4 amps, how many kilowatts does this relate to?
#35
12-12-2011, 02:07 AM
 JohnS Double Ultimate Supreme Member Join Date: Dec 2007 Location: SE Michigan, USA Posts: 8,700 Rep Power: 17
Re: Amps To Kilowatts

Quote:
 Originally Posted by Unregistered I have 24.4 amps, how many kilowatts does this relate to?
You also have to know the voltage. If it is alternating current, you also need to know power factor and whether it is single phase or three phase.
#36
12-12-2011, 03:24 PM
 Unregistered Guest Posts: n/a
Re: Amps To Kilowatts

Quote:
 Originally Posted by Unregistered111 400amps @ 3p208 400*(3*208)=249,600w 249,600/1000=249.6
Wrong 400*(208*1.732)=w
#37
03-02-2012, 09:36 AM
 Unregistered Guest Posts: n/a
Re: Kilowatts to amps

I have motor for machine 420 v /3 phase /55 kw i want know how many amps this motor
#38
04-01-2012, 07:11 PM
 Unregistered Guest Posts: n/a
Re: Amps To Kilowatts

I need formula running amp to kilowatt...
#39
04-23-2012, 12:32 PM
 hasan Guest Posts: n/a
Re: Amps To Kilowatts

Quote:
 Originally Posted by thesmartfisherman.com That was just an example of the arithmetic.
1amps= ? watt
#40
06-28-2012, 08:06 PM
 Unregistered Guest Posts: n/a
Re: Amps To Kilowatts

Thanks for this. Does that mean each phase will draw 45 amps or it will be distributed in 3 phases ie. 15 amps per phase.

 Thread Tools Display Modes Linear Mode

 Posting Rules You may post new threads You may post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules
 Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home Main Forums     Convert and Calculate     Resources     General Chat

All times are GMT -8. The time now is 06:46 PM.