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Guineafowl
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- Is my expression for real power in an AC circuit, including distortion and displacement, valid? I’m almost certain it is, but just checking I’m not missing anything.
$$P=IV \left [ \frac {cos\phi} {\sqrt{1+THD^2}} \right ]$$
The reason for asking is, I can’t find the equation written out in full like this.
A friend wants to know why his generator is rated in kVA. Having done basic school physics, he’s familiar with P=IV in the DC steady state, so is expecting kW.
I was thinking the equation above would be a useful starting point, a sort of roadmap to point at, allowing me to pick out the term in square brackets, and deal with displacement PF and distortion PF using the top and bottom terms inside, respectively.
The reason for asking is, I can’t find the equation written out in full like this.
A friend wants to know why his generator is rated in kVA. Having done basic school physics, he’s familiar with P=IV in the DC steady state, so is expecting kW.
I was thinking the equation above would be a useful starting point, a sort of roadmap to point at, allowing me to pick out the term in square brackets, and deal with displacement PF and distortion PF using the top and bottom terms inside, respectively.
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