1. Test items
● RMS of three phase voltage: Uab,Ubc,Uca.
● Average value of three phase AC voltage: Uab,Ubc,Uca.
● RMS of three phase current: Ia, Ib, Ic.
● Percentage of No-load loss and No-load current: Po, Io%.
● Load loss, impedance voltage percentage, short circuit impedance: Pt, ekt, Zt.
● Load loss, impedance voltage percentage and short circuit impedance at any specified temperature.
● Transformer actual capacity and judged capacity.
2. Main technical parameters
● Current measurement range: 100mA-60A,accuracy:class 0.2.
● Voltage measurement range: 10V-650V,accuracy:class 0.2.
● External transformer can broaden the measurement range of instrument.
● Frequency measurement range: 40-65Hz, accuracy:class 0.2.
● Power input: AC220V± 10%.