i need to convert ampere of usage into kwh
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how to convert amps into kwh usage
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Re: how to convert amps into kwh usage
converting amps to kwh requires multiple equasions, for example i will show the process for converting the amps used by a 100 watt bulb in a 115/120 volt powered circuit.
E=IxR states that volts are equivilent to amps X watts
So inversly volts divided by watts = amps
in this case 120 volts divided by 100 watts =1.2 amps
that given and adding that kwh=1000 watts used for 1 hr
so inversly a 1.2 amp load used continuosly for 1 hr = 100watt hours or 0.10kwh
I hope that helps

Re: how to convert amps into kwh usage
Originally posted by UnregisteredI have a motor drawing 4.7 amps at 120V. What is my kwh usage
Therefore it uses 0.564 kWh/h. Multiply by hours operated and you will have your answer.
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Re: how to convert amps into kwh usage
Originally posted by gubment_cheezan ampere is an instantaneous measurement, while KWH is a measurement of watts (in this case, kilowatts) over time. it's like converting linear feet to cubic feet, you just can't do it
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Re: ampskwh
Originally posted by Unregistered View Postif i reduce the amps rate by an energy saver will kwh will reduce
If you reduce the amps, the energy consumed will be less UNLESS it runs longer (for example, something controlled by a thermostat that runs until it reaches a temperature.)
Picky note: above is only correct if current is in phase with voltage and constant. If current varies or turns on and off with a switch (thermostat) it is a little more complex.
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Re: how to convert amps into kwh usage
Originally posted by wengg@koresindia.com View Post. one main feeder is loading 1000 amp. please let me know with formula how much kwh consumption.
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Re: how to convert amps into kwh usage
Originally posted by Mel View PostI want to know what my consumption of KWh is for a baler machine, this is the data:
10hp
208230/460 (3 phase, 230v)
2826amp
1725 RPM
60HZ
Thank you.
In the electrical data, is there any mention of "power factor?" I ask because the numbers don't agree well. If it is 10 HP output, that is 7.46 kW output power. Since no machine is 100% rfficient, I would expect it to draw around 910 kW to out put that, based on typical efficiencies.
Edit: I started out assuming the 230 V was line to neutral. I'm pretty sure it is line to line, and needs to be divided by square root of 3.
If I multiply the volt*ampere rating, I get 3*230 V*26 A = 17940 VA = 17.94 kVA. However, if I assume the voltage is linetoline and divide by the square root of 3, I get 10.4 kVA. If the power factor is close to 1, then it is also 10.4 kW. Just multiply by the hours runs for kilowatt*hours.Last edited by JohnS; 08212009, 10:00 AM.
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