Product Details

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1. Technical Indicators

Turns ratio measurement range: 0.9—5000

Turns ratio measurement accuracy: 0.1 class (0.9—1000)

0.2 class (1000－5000)

Group measurement: 1－12

Angle measurement: ±0.2%+0.2 degrees 

Test voltage: Single-phase AC200V, 100V automatic switching; 

Three-phase line voltage AC60V 50HZ

Dimensions: 403mm×330m×178mm 

Weight: 7Kg

2. Operating Conditions 

• Ambient temperature: －10 ～ 50℃ 


• Ambient humidity: ≤85％RH


• Power supply: AC220V ± 10％ 


• Power frequency: （50 ± 1）HZ

Main Features

• ◇The instrument adopts two output test power modes: single-phase and three-phase;


• ◇It can measure the turns ratio and group (or polarity) of transformers with connection groups such as single-phase, Y/y, Y/d, D/y, D/d, etc.


• ◇It can measure the turns ratio and angle of Z-type transformers at any angle (without inputting the angle value);


• ◇It has the function of testing transformer tap changers;


• ◇The unique angle testing function is important for the winding connection of transformer manufacturers;


• ◇The instrument can internally store test data of 10 transformers, with up to 40 taps per data set;


• ◇The instrument uses a large-screen LCD, full Chinese menu prompts for operation, simple and convenient to use, and the micro printer can print out all test data;


• ◇It has USB storage and non-volatile clock function;


• ◇It features fast measurement speed, high accuracy, shock resistance, and portability.

Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.