... 4. Auxiliary SOE,TOU. 31th harmonic PMAC720, a perfect Power meter, display by LCD panel. Feature:1. Suit for ... Current—Ia, Ib, Ic, In3. Active power – Pa, Pb, Pc, ∑P4. Reactive power –Qa, Qb, Qc, ∑Q5. Power factor—PFa, PFb, PFc, ∑PF6. Frequency7 ... . Active energy—kWh8. Reactive energy– kvarhOptional Modules:1 ...