... active and reactive three phase meters (3 or 4 wires) and single phase meters (2 or 3 wires). It is designed ... b) Reactive energy: typical: 0,15%, worst case: 0,3%.6) Accuracy with current clamps: a) Active energy: typical: ... like phase voltage, phase current, phase and three-phase active power, phase and three-phase reactive power, phase and three-phase apparent power b) Phase and three-phase power ...