As we all know, the instrument transformer calibration device is easy to operate, intuitive in reading and rapid in measurement, which can reduce power consumption and labor intensity. What is the instrument transformer calibration device? In fact, the instrument transformer calibration device is a new kind of automatic detection instrument. It uses advanced electronic technology to directly collect and decompose the error signal of the instrument transformer, and after proper calculation, the percentage point, in-phase error and orthogonal error of the instrument transformer are displayed in digital quantity at the same time.

After understanding the transformer calibration device, we will talk about the latest ZCHG-12 transformer calibration device developed by our company for professional power workers.

ZCHG-12 instrument transformer itelligent calibration device is a new generation of electronic source instrument transformer calibration device newly developed by our company, with faster calibration speed, more accurate test data, better stability and more perfect protection function. The device consists of transformer calibrator, voltage and current load box, electronic source control cabinet, 12 position transformer test bench, etc.

The operator can set the main parameters such as the type, transformation ratio, accuracy level, secondary load, power factor and transformer position of the tested transformer through the transformer error management software on the PC. the error data of all the regulation points of 12 current transformers with the same transformation ratio can be measured in one current rise process

(about 3 minutes) and stored in the database.

The following are the main features of ZCHG-12 intelligent transformer calibration device:

1. The device has three test modes: online automatic, single machine automatic and single machine manual;

2. Complete the measurement of 12 current transformers in the process of primary current rise (3-5 minutes), and realize the real function of speed verification;

3. The program-controlled electronic source is adopted, and the fixed point is fast and accurate, which overcomes the disadvantages of the traditional electrical voltage regulator, such as large noise, mechanical wear, etc;

4. During the test, the primary and secondary wiring of the standard transformer and the voltage and current load box are switched automatically without manual shift;

5. It can select any position for calibration, and synchronously display test position, standard transformer wiring, power factor and secondary load;

6. It can also be used as power frequency and triple frequency withstand voltage test bench to conduct withstand voltage test of transformer;

7. It has over-voltage, over-current and dial indicator protection functions, such as phase loss, transformation ratio error, polarity error and excessive error in test;

8. The error management software device can be connected with the gapless ports of the State Grid, China Southern Power Grid, local power grid and other marketing systems;

9. The program-controlled source technology is adopted for the fine regulation of the instrument transformer verification device, which makes the positioning of the test point faster and more accurate;

10. The instrument transformer verification device has a qualitative improvement in the measurement speed of multiple current transformers, and can measure 12 current transformers with any transformation ratio in 3-5 minutes;

11. The instrument transformer verification device can carry out the regulation and non regulation measurement of the instrument transformer. During the measurement, the user can specify the measurement of any percentage point.