GDBT-2500kVA/33kV is mainly to make no-load, load and induction voltage test, power frequency withstand voltage test and temperature rising test for 33kV, 2500kVA and below distribution transformers.
The measurement part is controlled by single chip. Digital display, no-load and short circuit test data will be sampling by single chip at the same time.
II. Test Items
Transformer no-load characteristic test (no-load loss, no-load current as a percentage of rated current);
Transformer load characteristic test (load loss, impedance voltage percentage; temperature conversion and load loss test under full current of 30% and above can be automatically performed);
Transformer DC resistance test;
Transformer ratio test;
Transformer insulation test;
Transformer temperature rise test;
Transformer power frequency withstand voltage test;
Transformer multifrequency withstand voltage test;
Ambient temperature and humidity test function.
III. Specifications
Transformer Power analyzer
Voltage measuring range: 30V-700V
Current measuring range: 0.25A-5A
Accuracy: 0.2%
Power U*I, accuracy 0.5%
Power factor 0.020-1.000, accuracy 0.3%
Frequency 40-70Hz, accuracy 0.1%
3-phase total power P
No-load current I0 %
No-load loss P0
Load loss Pk
Impedance voltage Uk
3-phase power value Pa(Pab), Pb, Pc(Pbc)
3-phase average line voltage Un
3-phase average current In
DC Winding Resistance Tester
Output current: 20A, 10A, 5A, 1A, ≤10mA
Measurement range: 1mΩ~2kΩ
Measuring accuracy: ±(0.2%+2digits)
Measurement channel: 2 channels
It should be able to complete the DC resistance measurement test of the transformer, and be able to accurately measure the thermal resistance of the high and low voltage sides during the temperature rise test at the same time, and be able to automatically time and upload data to the host computer.
Audited Supplier 
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