Product Details

YD-6628 Automatic Transformer Turns Ratio Tester



Darui Electric recommends



Main Features

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

It can measure the turns ratio and connection 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 angle values);

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 store test data of 10 transformers internally, with each group of data having up to 40 tap positions;

The instrument uses a large-screen LCD, with full Chinese menu prompts for easy operation, and a micro printer can print out all test data;

It has USB storage and non-volatile clock functions;

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

Product Parameters

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)

Connection 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 to 50℃

Ambient humidity: ≤85%RH

Power supply: AC220V ± 10%

Power frequency: (50 ± 1) HZ



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