1. Powered by lithium battery or 220V AC power supply with automatic adaptation. A single charge can continuously test turns ratio and group for more than 100 transformers, making the testing process simple and convenient.
2. Has blind testing function, i.e., testing turns ratio and group without knowing the high and low voltage connection methods.
3. Based on testing conventional transformers, Z-type transformers, and PT samples, it adds CT turns ratio and polarity testing function, broadening its application fields.
3. Wide range and high accuracy, with turns ratio measurement range up to 10000, and accuracy guaranteed at 0.3% when the value is 10000.
4. Has comprehensive protection functions such as reverse connection protection and output short circuit protection.
5. 5.6-inch ultra-large industrial-grade high-brightness color LCD screen, still clearly visible under strong light.
6. Equipped with a thermal printer for convenient data printing.
7. Has local storage and U-disk storage for convenient data saving.
