| 11.5 Complex Power (3) |
| S = P + j Q |
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| Apparent
Power, S = |S| = Vrms*Irms = |
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| Real
power,
P = Re(S) = S cos(θv – θi) |
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| Reactive
Power,
Q = Im(S) = S sin(θv – θi) |
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| Power factor, pf = P/S
= cos(θv – θi) |
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