Product description The portable Three-phase standard power source is suitable for metering departments, power distribution terminals, power management, reactive power compensation devices and enterprise production. Technical index Electrical parameters Accuracy class 0.05%, 0.1% Power supply Single phase AC 85-265 V, frequency 50/60 Hz AC Voltage output Range (U1, U2, U3 phase) 57.7V/100V/220V/380V; range switch automatically (Max 500V) Electrical parameters - continued 0.01% RG Accuracy 0.05% RG Stability