The transformer ratio tester mainly performs turn to turn ratio or voltage ratio testing, which can overcome the shortcomings of traditional transformer ratio bridge testing. Therefore, for this instrument, its working principle and product characteristics, let me take you to understand.
Working principle:
The working principle of a transformer ratio tester is that the square of the transformer ratio is equal to the ratio of the initial interstage inductance. Throughout the entire process, we only need to test the inductance through instruments to calculate the turn ratio. The instrument is based on a microcontroller for measurement calculation and automatic control, and the operating interface is also in Chinese, simple and easy to understand.
Product characteristics:
1. Chinese menu prompt, simple and convenient operation;
2. Large measurement range of variable ratio: 1~9999.9;
3. Powerful: It can perform single-phase measurement and automatic testing of three-phase windings. The connection group can be selected arbitrarily, and the measurement of parameters such as AB, BC, CA three-phase ratio, error, and connection group can be completed in one go;
4. The measurement speed is fast, and it only takes more than ten seconds to complete the three-phase measurement simultaneously;
5. Complete one measurement and automatically cut off the test power supply;
6. Set data, automatically save measurement results, and view previous data;
7. Measure the on load transformer and input the transformation ratio only once;
8. Convenient to carry and suitable for field operations.
Test steps for transformer ratio tester:
1. Place the instrument flat, separate the high voltage part A.B.C and low voltage part A.B.C of the test wire of the tester, and connect them to the corresponding terminals of the tester and the tested transformer.
2. Input the calculated transformation ratio of the transformer to be tested into the tester.
3. Place the function keys on the panel in the same wiring group as the nameplate identification group.
4. Turn on the test power, the power indicator light is on, and press the reset button to reset the display to zero.
5. Press the test button to start the test. After about 60 seconds, the wiring group of the transformer is displayed in the upper right corner of the digital screen interface, and the four digits on the left side of the digital screen interface display the transformer ratio error (%). Record the test results.
6. Turn off the power.
7. Convert the gear of the tested transformer and test the ratio error at each gear according to steps 2 to 6 above.
8. When conducting single-phase transformer ratio testing, the four terminals A.B.a.b of the instrument should be used for testing.
The KST-203A fully automatic transformer ratio group tester is mainly used to supervise the quality of transformer products during delivery and use, to prevent inter turn short circuits, open circuits, connection errors, internal faults or contact faults of voltage regulating switches. The instrument is easy to operate, has complete functions, stable and reliable data, and has fast testing speed. It meets the needs of various large, medium, and small transformer ratio tests and is an ideal testing instrument for the power industry department.
Kvtester Electronics Technology Co.,Ltd. is a high-tech enterprise specializing in power testing, testing, research and development, production, and sales of testing equipment. It has been engaged in the electrical testing industry for many years, and its products are of high quality. We welcome customers to come and purchase.
