Product Introduction

In accordance with IEC standards and relevant national regulations, semi-finished and finished transformers—as well as those newly installed or recently overhauled—must undergo transformer turns ratio testing prior to being put into service. Furthermore, the *Regulations on Handover and Preventive Testing of Electric Power Equipment* mandates the periodic measurement of turns ratios for transformers already in operation. Transformer turns ratio testing serves to assess the condition of the transformer windings and tap changers, enabling the detection of defects such as coil short circuits, connection errors, or inter-turn short circuits, thereby ensuring the safe operation of the equipment.

The HCBBZ-1000 Transformer Turns Ratio Tester utilizes a 32-bit ARM core processor to control the entire unit. It enables the complete measurement of turns ratios for both single-phase and three-phase transformers in a single, seamless operation. The instrument features a user interface driven entirely by Chinese-language menus, making its operation simple and intuitive. The test results are accurate and reliable, and the device is capable of both storing and printing these results. Boasting strong anti-interference capabilities, the instrument is capable of meeting the turns ratio testing requirements for a wide range of transformers—from small to large-scale units.

Product Aliases: Transformer Turns Ratio Tester, Transformer Turns Ratio and Vector Group Tester

Technical Parameters

Product Features

1. Wide test range, reaching up to 10,000.

2. Fast test speed; a single-phase test is completed in just 10 seconds.

3. Supports testing of Z-connected transformers.

4. The transformer turns ratio tester features "blind testing" (ratio auto-detection) and vector group testing capabilities.

5. Non-volatile clock and date display, along with a data storage function (capable of storing 50 sets of test data).

6. Protection functions against reverse connections on both the high-voltage and low-voltage sides.

7. Protection functions against transformer short circuits and inter-turn short circuits.

8. Thermal printer output function for fast, silent printing.

9. The transformer turns ratio tester features a compact size and lightweight design.