... Series power analyzer specializes in measuring the data of all kinds of electric networks, such as the currents, the ... , VL3,VL12, VL23, VL31,AL1, AL2, AL3, ∑AL, F, ∑P, P1,P2,P3, ∑Q, Q1,Q2,Q3,∑S, ... standards, the first definition originates from the theory of Symmetrical Components which mathematically breaks down an unbalanced ... zero component.The Screen displays: +I1, -I2, N. power quality meter PZ96-3EH ...