So we adapt the modern high-tech research and development of a new generation of intelligent transformer turns ratio test device TE2020 Automatic Turns Ratio Tester, the product with the advantage of a large-screen display of English characters,In accordance with IEC standards IEC 61010-1. Safety requirements for electrical equipments  used in measurement, control and laboratory. Friendly interface, small size, easy operation, light weight, easy reading, good stability, high accuracy, wide measuring range and automatic etc., can direct measurement of single-phase, three-phase transformer and the transformer turns ratio and the error parameters.

(1)   Real three-phase test: single-phase power input, internally generated three phase power output, and the testing result has better equivalent performance, won't appear group miscarriage of justice phenomenon.
(2) Fast measurement speed. 
(3) easy to operate: no need to select the wiring mode or group ratio, measures Y / △, △ / Y transformer needn’t external shorted , it can automatically switch wiring mode according to test items.
(4) Reverse connect protection function:If reverse connection of the high side and the low side, the instrument will automatically cut off the output power and sent an alarm signal; to prevent the high voltage burn instruments.
(5) the lead test: human nature to pick up points test function, can fast measure in each tap-changer position than error ratio change change, change every file, rated than than enter a surge, need not repeated input can calculate the lead position of each variable than error; The lead test have real-time testing process preserved power function, the machine can continue to last unfinished points meet test project.
(6) Strong data storage system: can store 100 groups of single/three-phase experiment data, 100 group respective connection test data, with the large capacity Chinese characters, Numbers, symbol library, can modify personnel, the Numbers etc directly, facilitate future management.
(7) Long service life: the wide temperature type Chinese LCD monitor, solve the high temperature and the sun was blazing down under the environment of the failure of liquid crystal display easily. All adopt the high voltage resistor, effective eliminate the environmental temperature on the measurement results, the influence of the use of military connectors to enhance the ant-vibration performance.