YD-type volt-ampere characteristics, variable ratio, the polarity of the comprehensive tester is designed for the professional protection of the relay test current transformer volt-ampere characteristics, variable ratio test and polarity discrimination and design, but also for the transformer polarity discrimination test, Cost-effective, relatively high multi-function test equipment.
The instrument uses high-efficiency low-power materials and special winding of the booster, the microprocessor for data collection, analysis and storage, built-in micro-printer can print test data and curves, measured CT ratio, you can automatically calculate the ratio . One person can handle all the test work. The machine has a light weight, carry, easy to operate. Its unique performance, is currently rare equipment.

Can be customized according to customer requirements of the technical parameters of various types of transformer tester.