... Power Meter, 5A rated input metering volt, amp, kW, kvar, kWh, kvarh, Hz Harmonic, RS485, DI+DO, Modbus/ Profibus, The PMAC720 Multifunction Power ... displaying electric parameters include voltage, current, active power, reactive power, power factor, frequency, active energy and reactive energy. ... Ib, Ic, In3. Active power – Pa, Pb, Pc, ∑P4. Reactive power –Qa, Qb, Qc, ∑Q5. Power factor—PFa, PFb, PFc, ...