In the production process of semi-finished and finished power transformers, before the newly installed transformers are put into operation, and according to the preventive testing regulations of State Grid, it is required to regularly conduct turns ratio or voltage ratio tests on the operating transformers. The traditional variable ratio bridge is cumbersome to operate, the readings are not intuitive, and necessary conversions are required. The test results are only the value of one phase ratio.

The transformer ratio tester overcomes the shortcomings of traditional ratio bridge testing. The screen adopts a large high-resolution LCD display, which is convenient for on-site use. It has a Chinese menu prompt function, easy and intuitive operation, and can complete three-phase ratio testing in one go with fast testing speed and high accuracy.

Transformers are crucial equipment in power systems, and their "transformation ratio" is one of the key indicators for measuring their performance. How can we accurately and efficiently measure the transformer ratio? Today we will talk about the helpful tool of "Transformer Ratio Automatic Tester".

What is transformer ratio?

Simply put, transformer ratio is the ratio of turns between the primary and secondary windings of a transformer, which directly reflects the transformer's ability to increase or decrease voltage. Accurate transformation ratio is the foundation for the safe and stable operation of transformers.

Factors affecting ratio measurement

In actual measurement, some factors may interfere with the accuracy of the transformation ratio. For example:

Temperature changes: can cause changes in the resistance of conductors, thereby affecting measurement accuracy.

Wiring method: Different wiring methods require corresponding measurement methods, otherwise it may lead to data deviation.

Test the stability of the power supply: Unstable power supplies can introduce errors.

Advantages of Transformer Ratio Automatic Tester

The traditional variable ratio measurement method is time-consuming and labor-intensive, and is easily affected by human factors. The transformer transformation ratio automatic tester launched by Wuhan Ultra High Voltage Power Technology Co., Ltd. can significantly improve measurement efficiency and accuracy.

Automated operation: No need for manual gear adjustment, the instrument automatically completes the test, greatly saving time.

High precision measurement: The measurement technology used ensures the reliability of the data.

Intelligent analysis: capable of automatically determining wiring groups and processing data.

How to choose and use

Choosing a suitable ratio tester requires consideration of its testing accuracy, ease of operation, and scope of application. When using, be sure to follow the instructions in the manual to ensure correct wiring and pay attention to factors such as environmental temperature. The professional team of Wuhan Ultra High Voltage Power Technology Co., Ltd. can provide you with * technical support and after-sales service, helping you achieve twice the result with half the effort in power testing work.

Association and Application

The automatic transformer ratio tester is not only used for factory acceptance and routine testing of transformers, but also plays an important role in scenarios such as power grid maintenance and substation maintenance. It is a detection instrument that ensures the safe operation of power equipment.