... 10%, 1%, 0.01%·Max. Power output: Voltage: 100VA/ phase Current: 100VA/ phase·Power output stability: 0.05% ( cosΦ=1,3min)·Waveform ... , starting and basic error testing of energy meters·3 three-phase electronic or mechanical energy meters can be tested at the ... harmonics output, related to fundamental wave, the amplitude and phase can be adjusted ·Voltage circuit shorted or current circuit opened ...