Hello, Mihas, you wrote: M> Hello, tyomchick, you wrote: T>>>> Yes there is no singular problem. Simply from the clever counter the instant capacities, currents, pressure, corners between phase pressure, power factors etc. M>>> So are read, the information actually has more? Why then phase shift not to consider from power factor? T>> well I just about it wrote, and two roots, with different signs. M> Perhaps, it helps? You receive reactive capacity signed? Or absolute value? Yes I basically understood already as, under your help. The corner basically can be received as atan (Q/P), but in the presence of power factor from the counter, value acos (fi) signed products P*Q undertakes.