... value, voltage, current, power, power factor, 2. Multi-tariff energy 3. RS485/Modbus Alibaba recommended produc Perfect, stability, Reliability Features ... —Ua, Ub, Uc, Uab, Ubc, Uca,2. Current—Ia, Ib, Ic, In3. Active power – Pa, Pb, Pc, ∑P4. Reactive power ... Power factor—PFa, PFb, PFc, ∑PF7. Frequency8. Active energy—4 quadrant kWh9. Reactive energy– 4 quadrant kvarh Optional Function:1. Statistics of ...