The internal power module in the tester generates the three-phase power or two-phase power, which is output to the high voltage side of the transformer. Then the high voltage and low voltage are sampled at the same time. Finally, the group, ratio, error, and phase difference are calculated.

Product Features:-

● 7inch touch screen, full menu.
● True three-phase simultaneous measurement, testing time for one group data is 10s.
● 2voltages output, which enhance the adaptation of different voltage grade transformer.
● With function of low voltage coil turns ratio measurement, which can measure the current ratio of CT/PT.
● Tap changer ratio of current position can be determined automatically when measuring.
● With internal battery, convenient for onsite testing.
● With over-current, over-voltage protection function, over-heat function, reverse connection protection function.
● Data can be transferred to PC and saved by EXCEL file.

Specifications:-

● Voltage ratio test range: 1-10000
● Group test range: 0-11
● Voltage ratio test accuracy

● Voltage ratio resolution: 0.0001
● Angle accuracy: 0.1°
● Angle resolution: 0.01°
● Accuracy of current measurement: 1% FS+2digits
● Power Input: Lithium battery 12V 10Ah
● Dimension: 387*175*379mm
● Weight: 9kg
● Operating temperature: -20℃-40℃
● Relative moisture: ≤85%, no condensation

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