The KDBR-IV transformer capacity and no-load tester is a high-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 characteristic parameter 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 measure the capacity of various distribution transformers conveniently and accurately.

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. When conducting no-load and load tests on three-phase transformers, the instrument can automatically determine whether the wiring is correct and display vector diagrams of three-phase voltage and current.

5. 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).

6. The 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.

7. 320x240 large screen, high brightness LCD display, English menu and operation prompts for friendly human-machine dialogue, touch buttons for easier operation, wide temperature LCD with brightness adjustment, suitable for winter and summer seasons.

8. The instrument can preset 40 sets of test sample parameters by the user, and these parameters can be deleted and added in real time as needed, making it very convenient to use.

9. Equipped with a real-time electronic clock, it automatically records the date and time of the experiment, facilitating the storage and management of experimental results.

10. Panel type thermal printer can quickly print test results on site.

11. The data (sample settings, measurement results, testing time, etc.) has power-off storage and browsing functions, can store 500 sets of experimental results, and can be transmitted online with a computer.

12. Allow external voltage transformers and current transformers for extended range measurement, which can measure various parameters of the test sample.

1. Environmental conditions
Temperature: -5C~40C Relative humidity:<95% (25C)
External interference: no particularly strong vibrations, no particularly strong electromagnetic fields
External power supply: 220VAC ± 10%, 45Hz~55Hz

2. Measurement range
Capacity: 30KVA to 65000KVA
Voltage: 0-700V, automatic range switching inside the instrument
Current: 0~100A, internal automatic switching range frequency of the instrument: 45Hz~65Hz

3. Testing accuracy
Voltage: 0~100V, ± 0.2% FS; 100~700V，±0.2%
Current: 0~10A, ± 0.2% FS; 10~100A，±0.2%
Power: ± 0.5% (Cos Φ>0.1), ± 1.0% (0.02)

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.

5. Other indicators
Dimensions: 400 × 300 × 220mm
Weight: 12Kg (excluding test line)