Transformer Turn Ratio Meter

Transformer Handheld Ratio and Group Tester

The MEBC-WZ Handheld Turns Ratio and Connection Group Tester is a portable transformer testing device featuring a compact size, lightweight design, and a high-capacity lithium battery providing over 6 hours of operation. It performs blind testing of turns ratio (0.9–10000 range) and connection group, delivering high accuracy, strong anti-interference capability, and rapid measurement. Featuring a 7-inch display and built-in printer, it supports data storage and export. Compatible with single-phase and three-phase transformers, it meets factory acceptance, handover, and operational maintenance testing requirements.

1) This tester is a portable device featuring compact size and lightweight design.

2) It offers simple operation, high precision, anti-interference capability, shock resistance, and easy portability.

3) Equipped with a high-capacity lithium battery, it provides over 6 hours of continuous operation on a single charge. The battery is easily replaceable, ensuring uninterrupted testing for users.

4) Features comprehensive reverse voltage protection.

5) Delivers fast measurement speed with accurate and stable data.

6) The testing process is microprocessor-controlled, automatically performing self-calibration, steady-current determination, data processing, and numerical display.

7) Features a fully transparent 7-inch large LCD screen for clear visibility under sunlight.

8) Includes a built-in embedded thermal printer for convenient on-site printing.

9) The instrument software is fully functional, incorporating built-in user manuals, key function guides, wiring diagrams, precautions, and other references for easy on-site consultation during operation.

10) Non-volatile clock and date display with dual storage options: internal memory and USB flash drive support for expanded data capacity. Equipped with RS232 and USB interfaces for seamless data transfer to computers.

11) Silicone rubber keys enhance tactile feedback during operation, ensuring responsive keypresses while significantly extending key lifespan.

12) Wide test range with a maximum transformer turns ratio measurement of 10,000;

13) Supports Z-connected transformer testing;

14) Features blind turns ratio and group testing functions; vector graphic display. Phase angle graphic display with 0-360º resolution at 0.01º increments;

15) High/low voltage reverse connection protection and short-circuit protection functions;

Suitable for testing semi-finished/finished power transformers, commissioning tests before new transformers enter service, and periodic preventive tests on operational transformers, it can perform turns ratio and connection group testing.