MS-510S, Transformer DC Resistance Tester

This transformer DC resistance tester is a new generation of rapid testing instrument integrating magnetization testing,

 three-phase testing (Yn, Y, Δ), and demagnetization functions. It is an ideal device for measuring the 

DC resistance of large power transformers.

1. It can test Yn, Y, and Δ windings using three-phase measurement methods and calculate the three-phase imbalance rate.

2. The test power supply has a maximum output current of 20A and a maximum test range of 25kΩ, meeting the testing needs

 of most transformers. Furthermore, it integrates magnetization and demagnetization functions to meet various on-site testing 

requirements.

3. During the test, it can automatically calculate the resistance change rate within 5S, 15S, and 30S, assisting testers in judging 

the stability of test data and preventing misreading.

4. The instrument has multiple protection functions, including back EMF protection, line break protection, and power

 failure protection.

1. Output Current: 

Single-phase: 20A, 10A, 5A, 1A, 0.1A, 10mA, <1mA

Three-phase: 10A+10A, 5A+5A, 1A+1A, 0.1A+0.1A

2. Measuring Range:

Single-phase:

20A range: 0.5mΩ - 1Ω

10A range: 1.0mΩ - 2Ω

5A range: 10mΩ - 4Ω

1A range: 0.1Ω - 20Ω

0.1A range: 2.0Ω - 200Ω

10mA range: 50Ω - 2kΩ

<1mA range: 500Ω - 25kΩ

Three-phase:

10A + 10A range: 0.5mΩ - 0.8Ω

5A + 5A range 10 mΩ - 1.6 Ω

1 A + 1 A range: 0.1 Ω - 8.0 Ω

0.1A + 0.1A range: 2.0 Ω - 80 Ω

3. Accuracy: ±(reading × 0.2% + 2 digits)

4. Operating Temperature: -10-50℃

5. Ambient Humidity: <90%, non-condensing

6. Power Supply: AC220V±10%, 50-60Hz

7. Weight: 400mm*315mm*223mm, 9kg

Transformer DC Resistance Tester, Winding Resistance Tester, Transformer Winding Resistance Test Kit