Hi have two simple questions for you, taken from my homeworks:
The first one is about a single phase circuit in which we have a generator of voltage (240 V) in series with an impendence (in polar form 10 amplitude, 60 phase). In the first step I have to find R,X,P, Q and power factor. This is simple.
My problem is in the second step when a capacitor is connected in parallel to this circuit. I know that this capacitor supplies a precise quantity of VAr (1250 VAr): then I have to find P and Q supplies by the source and the new power factor.
Is it right that I consider the Q found in the first step and then I simply add this Q with 1250? Since the real power does not change, it will be easy finding the new power factor.
The first one is about a single phase circuit in which we have a generator of voltage (240 V) in series with an impendence (in polar form 10 amplitude, 60 phase). In the first step I have to find R,X,P, Q and power factor. This is simple.
My problem is in the second step when a capacitor is connected in parallel to this circuit. I know that this capacitor supplies a precise quantity of VAr (1250 VAr): then I have to find P and Q supplies by the source and the new power factor.
Is it right that I consider the Q found in the first step and then I simply add this Q with 1250? Since the real power does not change, it will be easy finding the new power factor.