I. Overview

In power transformer in the production of semi-finished products and finished products, before the new installation of the transformer in operation and according to the national ministry of preventive test procedures, require the operation of transformer turn ratio or voltage ratio test, you can check the correctness of the transformer turn ratio,  tap-changer condition, whether turn-to-turn short circuit, transformer whether can run parallel.HZBB-10B-I intelligent transformer ratio group test using the new algorithm developed by our company can measure the three-phase transformer ratio without adjusting the balance of three-phase power supply and ensure the measurement accuracy, so the test speed is fast, can measure the ratio and wiring mode in about 3 seconds.

II. Feature

1. It can automatically measure the transformer ratio of three-phase and single-phase, and calculate the ratio error.  

2. The number and polarity of transformer connection group can be measured.  And display a secondary wiring vector diagram, intuitive, the instrument has self-calibration function, according to the results of self-calibration can distinguish test line or instrument failure.  

3. Can display transformer voltage waveform diagram and phase relationship of the first and second, can measure transformer voltage harmonics harmonics, convenient analysis of transformer fault.  

4. CT, PT ratio, polarity test function.  

5. Perfect and reliable automatic protection function to ensure the instrument intact in all kinds of abnormal conditions.  

6. The instrument has 128M built-in memory (extensible 4G memory card), which can store all the measurement results. The database can be exported by usb disk, and the database can be opened by Excel spreadsheet.  

7. 7 inch true color touch screen operation, emWinGUI interface, simple and convenient operation.

III. Technical parameters