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Old 25-10-2004, 20:51   #1 (permalink)


Moshulu Rob is a helpful contributor with 30 reputation points.Moshulu Rob is a helpful contributor with 30 reputation points.

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Default Physics Equations

I can't remember any and can't be arsed to look them up. Can anyone tell me in watts what a peak demand of 4501 KVA on a three phase supply is please. I get 2.5million watts which can't be the maximum power we drew last month.

thanks

Rob
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Old 25-10-2004, 21:05   #2 (permalink)

 
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Quote:
Originally Posted by Moshulu Rob
I can't remember any and can't be arsed to look them up. Can anyone tell me in watts what a peak demand of 4501 KVA on a three phase supply is please. I get 2.5million watts which can't be the maximum power we drew last month.

thanks

Rob
I haven't got a scooby, but maybe this could help?
http://www.abrconsulting.com/Convers...con.htm#kW-kVA
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Old 25-10-2004, 21:26   #3 (permalink)


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great, I doubt we were pullling 3,825,000 watts of power at any time.

R
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Old 25-10-2004, 21:28   #4 (permalink)

 
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crippling the electricity company are we Rob?
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Old 25-10-2004, 21:30   #5 (permalink)
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And to think this is Energy Efficiency Week
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Old 25-10-2004, 21:31   #6 (permalink)
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*

The only difference between kW and kVA is the power factor. Once again, the power factor, unless known, is an approximation. For purposes of our calculations, we use a power factor of .85. The kVA value is always higher than the value for kW.

kW to kVA kW / .85 = SAME VALUE EXPRESSED IN kVA
kVA TO kW kVA * .85 = SAME VALUE EXPRESSED IN kW

Therefore 4501 x .85 assuming power factoer of 0.85

=
3825.85 KW
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Old 25-10-2004, 21:32   #7 (permalink)
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crippling the electricity company are we Rob?
Probably keeping the electric company going
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Old 25-10-2004, 21:35   #8 (permalink)
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Quote:
Originally Posted by onlynik
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The only difference between kW and kVA is the power factor. Once again, the power factor, unless known, is an approximation. For purposes of our calculations, we use a power factor of .85. The kVA value is always higher than the value for kW.

kW to kVA kW / .85 = SAME VALUE EXPRESSED IN kVA
kVA TO kW kVA * .85 = SAME VALUE EXPRESSED IN kW

Therefore 4501 x .85 assuming power factoer of 0.85

=
3825.85 KW
applauds
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Old 25-10-2004, 22:00   #9 (permalink)


Moshulu Rob is a helpful contributor with 30 reputation points.Moshulu Rob is a helpful contributor with 30 reputation points.

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Now comes the fun part tomorrow when I query our electricity bill of £20,000 with some inbred on their phone system, and try and explain why we couldn't possibly have drawn that much power at any one time.

next up - does anyone have any examples of something that might draw that much power -

EG 'no you fool, I know thats what the bill says but it can't be right because Pittordrie doesn't draw that much power during a night match with all the floodlights on. YOU FUCKING INBRED'

or equivalent
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Old 25-10-2004, 22:37   #10 (permalink)

 
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Quote:
Originally Posted by Moshulu Rob
great, I doubt we were pullling 3,825,000 watts of power at any time.

R
That Would have to be a very obese PA and Lighting Rig! And to many bacon rolls
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