The transformer energy efficiency level comprehensive tester is a precision instrument used for measuring characteristic parameters such as transformer capacity, no-load, and load. This instrument is a multifunctional measuring instrument, equivalent to two traditional testing instruments: transformer capacity tester and transformer no-load tester. It can accurately measure a series of power frequency parameters such as capacity, type, no-load current, no-load loss, short-circuit (load) loss, impedance voltage, etc. of various transformers.

This product has many advantages such as small size, light weight, high measurement accuracy, good stability, and simple operation. It can replace the traditional method of measuring transformer loss and capacity using multiple meters, with simpler wiring, easier testing and recording, greatly improving your work efficiency.

1. It can accurately measure the capacity of various distribution transformers, which is convenient and accurate.
2. It can measure the no-load current, no-load loss, short-circuit voltage, and short-circuit (load) loss of transformers.
3. The instrument automatically switches ranges internally, allowing for a wide range of voltage and current measurements and simple wiring.
4. A single machine can measure the load experiment of distribution transformers below 1000KVA under full current; The measurement of load test for distribution transformers below 3150KVA can be completed at one-third of the rated current (the instrument can convert the load loss parameter to the rated current at one-third of the rated current).
5. All test results are automatically calibrated accordingly. The instrument can automatically perform various calibrations such as waveform correction, temperature correction, non rated voltage correction, non rated current correction, etc., to improve the accuracy of test results.
6. Adopting a 7-inch touch screen, the operation prompts enable friendly human-machine dialogue. The touch screen makes the operation easier, and the wide temperature LCD with brightness adjustment can adapt to winter, summer, and season.
7. Comes with a real-time electronic clock that automatically records the date and time of the experiment, facilitating the storage and management of experimental results.
8. Panel type thermal printer, capable of quickly printing test results on site.
9. The data (sample settings, measurement results, testing time, etc.) has power-off storage and browsing functions, and can store more than 1000 sets of experimental results. USB can export experimental data.
10. It is allowed to use external voltage transformers and current transformers for extended range measurement, which can measure any parameter of the test sample.
11. The instrument can accurately measure and judge the energy efficiency level of 10kV distribution transformers, and correspond to the energy efficiency level. The losses of oil immersed transformers can be measured up to S22 (electrical steel strip) and SH25 (amorphous alloy); The losses of dry-type transformers can be measured up to SCB18 (electrical steel strip) and SCBH19 (amorphous alloy).

1. Environmental conditions
Temperature: -20C~50C
Environmental humidity: 10% to 85%
Altitude:<2500m
External interference: no particularly strong vibrations, no particularly strong electromagnetic fields


2. Measurement range
Active part:
Current output: 0-10A
Voltage measurement: 0-10V
Test capacity: Capacity measurement range: 30kVA~65000kVA
Characteristic section:
Voltage: 20-650V
Current: 0.5-100A
Frequency: 45Hz~65Hz


3. Testing accuracy
Voltage and current ± (reading x 0.2%+2 words)
Power (0.2 ≤ cos π≤ 1) ± (reading × 1.0%+2 words)
Capacity ± (reading x 10%+2 words)


4. Insulation strength
The insulation resistance between the voltage and current input terminals and the casing is ≥ 100M Ω.
The working power input terminal is subjected to a power frequency of 2KV (effective value) between the casing for 1 minute during the experiment.