ETBZC fully automatic ratio group tester

For traditional variable ratio measurement methods, QJ35 bridge is mostly used, which makes it difficult to guarantee accuracy and can no longer meet the requirements of fast-paced and high-efficiency measurement. The ETBZC fully automatic ratio group tester has a fully Chinese menu operation interface, with intuitive display, good stability, high accuracy, wide measurement range, and no need for three-phase power supply on site. It supports DL/T963-2005 automatic measurement wiring group, automatic switching of phase sequence, range, calibration, calculation error, and cut-off voltage data saving, which can perform single-phase measurement and automatic testing of three-phase windings

The national standard GB1094-79 stipulates that the transformation ratio of power transformers, except for transformers with voltage below 35KV and less than 3, is allowed to have a deviation of 0.5%. For traditional ratio measurement methods, QJ35 bridge is mostly used, which has low ratio measurement magnification, complicated operation, and difficult to guarantee accuracy. It can no longer meet the fast-paced and high-efficiency requirements of modern measurement. To this end, our company has developed a new generation of fully automatic variable ratio group tester using modern electronic technology.

The ETBZC fully automatic transformation ratio group tester is a new generation of intelligent transformation ratio testing instrument that uses a microcontroller as the core for measurement calculation and automatic control, with a fully Chinese menu operation interface. It has the advantages of intuitive display, good stability, high accuracy, wide measurement range, and does not require three-phase power supply on site.

1. Chinese menu prompts, simple and convenient operation;

2. Large range of variable ratio measurement: 1-10000;

3. Powerful function: It can perform single-phase measurement and automatic testing of three-phase windings. The connection group can be selected arbitrarily, and the transformation ratio, error, connection group and other parameters of AB, BC, CA phases can be measured in one time;

4. Fast measurement speed, it only takes a few seconds to measure all three phases 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. Automatic measurement of wiring groups and automatic range switching;

9. After inputting the standard transformation ratio, the relative error can be automatically calculated;

10. Equipped with RS232 communication interface, it can be operated, stored, and printed on a PC;

11. Convenient to carry and suitable for field operations.

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