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- Jun 25, 2013
- Messages
- 165
New school math? :LOL:
Last edited:
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Watts and H.P.?
- Thread starter speedre9
- Start date
New school math? :LOL:
- Joined
- Nov 18, 2012
- Messages
- 1,352
Yes and I think you will find that Watts is actually V x A x power factor. Just a minor correction.
David S
- Joined
- Nov 16, 2012
- Messages
- 5,596
I think we have probably answered the OPs question, but in the interest of completeness.
Apparent Power (S) = I*V
Power (P) = S*PowerFactor
so
PowerFactor = P/S
Apparent Power (S) will always be less than or equal to real power as power factor will always be a number between 0 and 1. The main effect that power factor is going to have on most folks wiring a machine is that at lower power factors you will require more current to produce the same amount of power (which effects the required wire size).
http://en.wikipedia.org/wiki/Electric_power
When I am converting from HP to watts and vice-versa, I usually just use 750W/HP. It's easier to do in your head, and it's close enough for most things.
Apparent Power (S) = I*V
Power (P) = S*PowerFactor
so
PowerFactor = P/S
Apparent Power (S) will always be less than or equal to real power as power factor will always be a number between 0 and 1. The main effect that power factor is going to have on most folks wiring a machine is that at lower power factors you will require more current to produce the same amount of power (which effects the required wire size).
http://en.wikipedia.org/wiki/Electric_power
When I am converting from HP to watts and vice-versa, I usually just use 750W/HP. It's easier to do in your head, and it's close enough for most things.
- Joined
- Aug 23, 2013
- Messages
- 970
Nope, just keeping it REAL simple for those who struggle with numbers!:roflmao: