I'm always told you should strive for unity power factor, but unity p.f. implies the circuit is at resonance. I don't know how this can be a good thing in power engineering. There is a tendency for high circulating currents to be established, that of which will increase the active power demand because the copper losses equate to I_r.m.s.^2 x R.
Another thing, even if the circuit is at resonance I'm told it only consumes real power. Well this can't be entirely true because the inductors and cap's still need to be charged to some degree in order to feed off one another, so there is reactive power in the circuit even at resonance.
Another thing, even if the circuit is at resonance I'm told it only consumes real power. Well this can't be entirely true because the inductors and cap's still need to be charged to some degree in order to feed off one another, so there is reactive power in the circuit even at resonance.