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#51
09-07-2011, 07:45 AM
 Unregistered Guest Posts: n/a
Re: how to convert amps into kwh usage

I have a pop machine operating at 120 volts drawing 11 amps, what is my conversion to kWh per hour?
#52
09-07-2011, 09:50 AM
 JohnS Double Ultimate Supreme Member Join Date: Dec 2007 Location: SE Michigan, USA Posts: 8,716 Rep Power: 17
Re: how to convert amps into kwh usage

Quote:
 Originally Posted by Unregistered I have a pop machine operating at 120 volts drawing 11 amps, what is my conversion to kWh per hour?
120 V x 11 A = 1320 W or 1.32 kW

In an hour, it will use 1.32 kWh, in two hours, 2.64 kWh

Kilowatt-hours are a unit of energy, the product of kilowatts (power) and hours (run time).
#53
09-18-2011, 12:05 PM
 karla Guest Posts: n/a
Re: how to convert amps into kwh usage

i need to convert 1.2 ampere of usage into kwh...
#54
09-18-2011, 12:24 PM
 JohnS Double Ultimate Supreme Member Join Date: Dec 2007 Location: SE Michigan, USA Posts: 8,716 Rep Power: 17
Re: how to convert amps into kwh usage

Quote:
 Originally Posted by karla i need to convert 1.2 ampere of usage into kwh...
What is the voltage?
For how many hours of run time.
#55
02-22-2012, 06:53 PM
 Unregistered Guest Posts: n/a
Re: how to convert amps into kwh usage

i need to convert 250 ampere of usage into kwh
#56
03-06-2012, 12:48 AM
 Unregistered Guest Posts: n/a
Re: how to convert amps into kwh usage

Does the number of Phases have an effect on the consumption
#57
07-24-2012, 09:55 AM
 Unregistered Guest Posts: n/a
Re: how to convert amps into kwh usage

covert Kwh/kg to mAh/g
#58
07-24-2012, 10:09 AM
 JohnS Double Ultimate Supreme Member Join Date: Dec 2007 Location: SE Michigan, USA Posts: 8,716 Rep Power: 17
Re: how to convert amps into kwh usage

Quote:
 Originally Posted by Unregistered covert Kwh/kg to mAh/g
Multiply by 1000, divide by voltage.

kWh/kg is numerically equal to Wh/g
1 W = 1 A x 1 V, so divide by volts to get Ah/g
multiply by 1000 for mAh/g
#59
08-17-2012, 04:14 AM
 Unregistered (Wayne) Guest Posts: n/a
Re: how to convert amps into kwh usage

Hi, I stumbled across this searching Google.
Would I be right in thinking the following based on 3.3 amps, using 240v;
3.3x240=0.792kWh.
Assuming a cost of 0.043 per kWh, then 24 hours usage=0.81?
This seems quite low, so I'm not certain I have the right idea.
#60
08-17-2012, 09:46 AM
 JohnS Double Ultimate Supreme Member Join Date: Dec 2007 Location: SE Michigan, USA Posts: 8,716 Rep Power: 17
Re: how to convert amps into kwh usage

Quote:
 Originally Posted by Unregistered (Wayne) Hi, I stumbled across this searching Google. Would I be right in thinking the following based on 3.3 amps, using 240v; 3.3x240=0.792kWh. Assuming a cost of 0.043 per kWh, then 24 hours usage=0.81? This seems quite low, so I'm not certain I have the right idea.
Numerically yes. Some minor units issues:
3.3 A x 240 V = 792 W or 0.792 kW, a unit of power.
A kilowatt for an hour, kWh, is a unit of energy.
0.792 kW x 24 h = 19 kWh (assuming it runs the full 24 h and current draw is constant)
19 kWh x \$0.043/kWh = \$0.817, call it \$0.82

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