1. Input single power, internal digital combination standard sine wave test source output

2. Phase angle measurement function: measure the phase angle between high voltage side and low voltage side. Measure the turn ratio and angle of “Non integral point” transformer.

3. It can conduct single-phase measurement and three-phase winding automatic test. Three phase turn ratio value, phase angle value, error, tapping position, tapping value can be measured for once.It also can identify connecting group number automatically.

4.Testing results can be displayed in the form of digit and hexagon vector diagram, which makes transformer connecting group can be made out obviously.

5. With blind test function: There is no need to choose connecting method and group. When measuring Y/△、△/Y transformer, no external short-circuit is needed,  connecting method can be shifted automatically according to the chosen testing contents.

6. With tapping test function: TTR and TTR error in the position of each tapping switch can be gauged quickly. Just input rated TTR once, instead of inputing over and over again, TTR error in tapping position can be calculated.

7. With functions of turns ratio measurement and voltage TTR measurement.

8. With 5.6 inch LCD, the effect of data & figure display is visualized and fine.

9. With small size and light weight, it is easy to carry.

10. With built-in high capacity chargeable lithium battery. Test can be conducted without any power supply on site, and once the battery is charged fully, it can make measurement for more than 500 times continuously.

1. TTR measurement range: 0.9~10000.

2. High measurement speed: three-phase test can be completed within 40 seconds.

3. Measurement accuracy:

Voltage measurement accuracy on HV side: 0.05%

Voltage measurement accuracy on LV side: 0.1%

Phase angle measurement accuracy: 0.1°

TTR measurement accuracy: 0.1%（0.9－200）

0.2%（200－2000）

0.3%（2000－10000）

4. Volume: 320mm*240mm*130mm.

5. Weight: 3Kg.

1.3-phase turns ratio test

Set parameter before 3-phase turns ratio test. Press “Set” or choose “Parameter setting” item, then press “Enter” to parameter setting screen, after parameter setting, press “Exit” to return to main menu interface, choose “3-phase turns ratio test” item and press “Enter” to connection prompts screen. Detailed connection diagram is displayed on the screen, so that operator can connect wire according to the shown diagram.

2.Single phase transformer test

Set parameter before single phase transformer test. After parameter setting, press “Exit” to return to main interface, choose “single phase transformer test” item and press “Enter” to connection prompts screen, connect wire according to the shown diagram.

3.Z-type transformer test

Set parameter before Z-type transformer test. After parameter setting, press “Exit” to return to main interface, choose “Z-type transformer test” item and press “Enter” to connection prompts screen, connect wire according to the shown diagram. After connection, press “Enter” to “Z-type transformer”testing screen. At the time, the instrument starts to test automatically. When testing is over, its results will be displayed on screen. Screen of prompts bar and testing results is shown as figure 12.

4.Scott transformer (T-type transformer)test

Set parameter before Scott transformer test. After parameter setting, press “Exit” to return to main interface, choose “Scott transformer test” item and press “Enter” to connection prompts screen (as shown in figure 13), connect wire according to the shown diagram. After connection, press “Enter” to “Scott transformer”testing screen. At the time, the instrument starts to test automatically. When testing is over, its results will be displayed on screen.

5.Anti-Scott transformer(T-type transformer) test

   Set parameter before Anti-Scott transformer test. After parameter setting, press “Exit” to return to main interface, choose “Anti-Scott transformer test” item and press “Enter” to connection prompts screen, connect wire according to the shown diagram.