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1.Input voltage: AC 380 , three phases, four-line, ±5% 50Hz±1Hz2.Capacity: full load 120kVA(according to customers requirements)3. Output voltage of three -phase four- line: 0-520V adjustable4. Load current of three loads: 0-70A adjustable5.Power factor0.61 adjustable6. Clamp controlled by electromotion ot automatism7.Insulated resistance of tester≥5MΩ8.System error≤±1.5%9.Current precision≤±1%10.Fluctuate range of displayed current≤0.5%11.wave of output current: sine wave, distortion degree5%12. Can test the electron life, machine life, operating time and working time13. Electron parameter show the working voltage, current, power, power factor, frequency,14. Micro computer can control, print, save and build database.15.Can make according to customer's requirement.