ZWBB200 Transformer Turn Ratio Tester

• Easy operation, fast speed.
• The tester has inner three-phase signal source, which can make measurement of Y /y, Y / d, D /y, D /d, ZN /y, ZN /d,and all kinds of ratios of transformer connection groups.
• The LCD adopts a 7- inch high-definition color touch screen, combined with the emwin display interface.
• The instrument can support the database and can be exported through a USB flash drive or transmitted to the background computer through a data cable.

Company Profile

The company specializes in the research anddevelopment, production, sales, and service of electric power systemautomation testing equipment, providing customers with one-stopservices.

Demo Video

Product Introduction

ZWBB200 multi-function variable ratio tester , It is a new generation of intelligent products independently developed by our company. The circuit design of the instrument is exquisite and the idea is unique, which makes it superior in performance, powerful in function, small in size and light in weight. The instrument uses a program-controlled signal source inside, which can output single-phase, two-phase or three-phase standard sine wave signals or high-frequency signals, and the output phase frequency can be adjusted arbitrarily. The instrument adopts the new algorithm developed by our company, which can measure the transformation ratio of the three-phase transformer without adjusting the balance of the three-phase power supply and can ensure the measurement accuracy. The test speed is fast, and the transformation ratio and wiring mode can be measured in about 3 seconds.

Functional Characteristics

1. The tester makes automatic measurement with no need to set any parameters and automatically completes the three-phase ratio and connection group measurements with easy operation. All you need to do is to press a button.
2. It can automatically measure the transformation ratio of three-phase and single-phase transformers, and can calculate the transformation ratio error.
3. The built-in three-phase signal source can measure the transformation ratio of transformers in various connection groups such as Y/y , Y/d , D/y , D/d , ZN/y , ZN/d , etc.
4. It can measure the label and polarity of the transformer connection group. It also displays the primary and secondary wiring vector diagrams, which are intuitive and clear. The instrument comes with a self-calibration function, which can identify test line or instrument failures based on the self-calibration results.
5. It can automatically track the position of the transformer on-load tap changer, and automatically indicate the current tap point.
6. It can display the primary and secondary voltage waveform diagram and phase relationship of the transformer, and can measure the primary and secondary voltage harmonics of the transformer, which is convenient for analyzing transformer faults.
7. Perfect and reliable automatic protection function to ensure that the instrument is intact under various abnormal conditions.
8. Small size, light weight, accurate measurement, fast speed (about 3 seconds to complete the test).
9. All measurement results can be stored or printed. The instrument has a built-in 128M memory (extensible 4G memory card), and the database can be exported by USB or uploaded to the computer. The database supports the opening method of excel electronic form, which is convenient for editing, printing or archiving.
10. It adopts 7- inch true-color touch screen operation, emwinGUI interface, supports Chinese character input, and the operation is simple and convenient. No power-off calendar, clock function, can store test time at any time.
11. It can support Bluetooth or serial printer to print records on site.

Technical Parameter

Product Details