... Features-Test discharge three-phase voltage, current, active power, reactive power, apparent power, power factor, frequency, running time, energies of generators ... discharging power according to performance parameters and detection requirements-Set discharging time, timing to automatic shut-off ... Hz, Display Resolution: 0.1Hz, Precision: ±2‰Power measurement range0~100 KVA, Display resolution: 0.1KVA, ...