... .The compact device is designed for monitoring and displaying electric parameters include voltage, current, active power, reactive power, power factor, frequency, active ... parameters:1. Voltage—Ua, Ub, Uc, Uab, Ubc, Uca,2. Current—Ia, Ib, Ic, In3. Active power – Pa, Pb, Pc, ∑P4 ... .0010~49999APower0.5%0.10~100MW/ MvarPower factor0.5%0.001-1.000~+1.000Frequency0.010.0145~65HzActive energy1.0%0 ...