The principle of the transformer short-circuit impedance tester is to determine the short-circuit impedance value of the transformer by measuring the voltage applied to the primary winding of the transformer and the current flowing through it.
The following is some relevant information about transformer short-circuit impedance tester;
Test purpose: The short-circuit impedance test is to compare the impedance value of the transformer before and after the short-circuit current impact. This helps to discover defects such as winding displacement and deformation that may occur during transportation, installation, and operation.
Test procedure: To perform the test, the secondary winding of the transformer needs to be short-circuited and then a lower voltage is applied to the primary winding. When the primary winding passes through the rated current, the voltage applied to the primary winding is measured at this time. The percentage of this voltage to the rated voltage is the short-circuit impedance value of the transformer.
Technical parameters: Transformer short-circuit impedance tester has high-precision voltage and current measurement function, usually voltage measurement range of AC 10V ~ 400V, the current measurement range of AC 0.5A ~ 10A.
Equipment features: This tester usually adopts advanced single-chip test technology, A/D synchronous AC sampling, and digital signal processing technology to ensure the accuracy of measurement data. The exterior design includes a large color LCD display and Chinese menu prompts for easy operation. In addition, it is equipped with a high-speed thermal printer and data storage function to facilitate the printing and transfer of data to a computer for further analysis.
In summary, the transformer short-circuit impedance tester is an important tool for detecting the health of the transformer, which can help maintenance personnel find potential problems in the transformer in time to ensure the stable operation of the power system.