Active power,reactive power,apparent power relationship between what kind of?

 Calculation formula is? Capacity of 620 kw,power factor 0.8,apparent power electrical motor 542 kva,reactive power should be? Have a formula? Reactive power is how to calculate?The square motor run capacitor of the apparent power = (active power + the square of the reactive power) square root Active power = apparent power (power www.facebook.com/dongfeng.motor factor In this calculation,P = S apparent active * cos phi = 542 * 0.8 = 433.6 KW Reactive power Q =) (542 x 542-433.6 x 433.6) = 325.2 KVAR Or according to ac induction motor cosine phi and sine phi phi sine phi 37 = 0.6 Q = S * sine phi = 542 * 0.6 = 325.2 KVAR