Transformer Characteristic Capacity Tester

The active transformer characteristic capacity tester comes with a high-efficiency rechargeable battery, which can work without an external power supply. It can continuously measure 500 units after a single charge; at the same time, the internal digital synthesis of three-phase standard sine wave signals (not a simple inverter AC Output, to ensure the accuracy of the test data of each test item under non-rated conditions), the power amplifier can provide a three-phase precision AC test source; when measuring the transformer capacity and transformer short-circuit loss, there is no need for an external three-phase test power supply and voltage regulation Auxiliary equipment such as converters and up-current simplifies wiring and greatly improves work efficiency.

The accuracy of the capacity test results is 99%. One kind of equipment is equivalent to five kinds of equipment: active transformer capacity tester + transformer loss parameter tester + zero sequence impedance tester + harmonic analyzer + oscilloscope. It can accurately measure a series of power frequency parameters such as the capacity, no-load current, no-load loss, short-circuit loss, impedance voltage, and zero sequence impedance of various transformers, and can measure the voltage and current distortion during the no-load test And harmonic content, vector analysis can also be performed.

The instrument has the advantages of small size, light weight, high measurement accuracy, good stability, easy operation and easy learning. It can completely replace the previous method of measuring transformer loss and capacity by using the multi-meter method. It has simple wiring, convenient testing and recording, and greatly improved Improve work efficiency. It uses a large-screen color LCD as the display window, menu operations and is equipped with Chinese character prompts, a multi-parameter display interface, a friendly man-machine dialogue interface, easy and fast to use, and it is the first choice for power users at all levels.

1. It can accurately measure the capacity of various distribution transformers, passive measurement, convenient and accurate.

2. The built-in power supply can automatically generate a three-phase high-power test power supply.

3. It can measure the no-load current, no-load loss, short-circuit voltage, and short-circuit loss of various types of transformers.

4. The no-load test can accurately determine the type of transformer under test, including: oil-immersed S7, S9, S11, S13, S15, S20, S21, S22, S25; dry transformer SCB9, SCB10, SCB11, SCB12, SCB13, SCB14, SCB15, SCB17, SCB18, SCB19 and other types of transformers.

5. It can automatically perform waveform distortion correction, temperature correction (simple temperature correction and additional loss correction respectively), voltage correction (no-load test under non-rated voltage), current correction (short-circuit under non-rated current conditions) Test), very suitable for units that have not done short-circuit test conditions for a slightly larger-capacity transformer.

6. It can measure the harmonic content and total harmonic distortion of voltage and current.

7. It can perform simple vector analysis and draw vector diagrams.

8. Display the waveform diagram of each electrical parameter and use it as an oscilloscope.

9. Wide range of voltage loop: The maximum voltage can be measured up to 750V, and the accuracy can be guaranteed without switching gears. The instrument itself will not be damaged due to the wrong selection of the voltage range.

10. The current range is divided into high and low gears, which can guarantee the maximum measurement range of 100A, and the minimum can ensure the accurate measurement of the amplitude of the milliamp level, which can meet the impedance voltage measurement of PT.

11. Capacity measurement range: 20kVA~800000kVA (three-phase change)

5kVA~100000kVA (single phase change)

12. The function of indicating the percentage of remaining battery power is by no means a simple alarm for power loss.

13. Large screen, high-brightness color LCD display, full Chinese character menu and operation prompts to realize friendly man-machine dialogue. Conductive silicone touch buttons make the operation easier and the button life longer.

14. The user can print out the test data through a micro printer at any time.

15. Test result storage function, which can store 200 groups of capacity test data.

1. Input characteristics

Active part:

Voltage measurement range: 0~10V

Current measurement range: 0~10A

Passive part:

Voltage measurement range: 0~750V wide range.

Current measurement range: 0~5A~100A internal dual range.

2. Accuracy

Voltage: ±0.2%

Current: ±0.2%

Power: ±0.2% (CosΦ>0.2), ±0.3% (0.02

3. Working temperature: -25℃~ +65℃

4. Charging power supply: AC 160V~260V

5. Insulation: ⑴. The insulation resistance of the voltage and current input terminals to the case is ≥100MΩ.

⑵The power frequency is 2kV (effective value) between the input end of the working power supply and the shell, and the experiment lasts for 1 minute.