Winding Resistance Meter
Introduction
YR type DC resistance test instrument is applicable to measure the DC resistance of power and distribution transformers, current transformers with high resistance values.
Features
- Fast charging speed, charging voltage upto 30V;
- Demagnetization function, reduce the remanent magnetization to prevent the difficulty of power on;
- USB port to download the test data to USD flash disk;
- 485 communication port to communicate with the computer;
- Protection if the tester is connected with 380V AC power supply;
- Discharge alarming;
Technical Parameters
| Model | YR-20C | YR-40C | YR-50C |
| Application | Transformers upto 240MVA | All transformers | All transformers |
| Output current | 20A,10A,3A,1A,15mA |
40A, 20A,10A,3A,1A,15mA | 50A, 40A, 20A,10A,3A,1A,15mA |
| Range | 0~20kΩ | 0~20kΩ | 0~20kΩ |
| Accuracy | 0.2% readings ±0.2μΩ | 0.2% readings ±0.1μΩ | 0.2% readings ±0.1μΩ |
| Resolution | 0.1μΩ | 0.01μΩ | 0.01μΩ |
| Output voltage | DC30V | ||
| Input power supply | AC220V±10%,50Hz±1Hz, DC12~24V/5A | ||
| Dimension | 420m(L)*320mm(W)*200mm (H) | ||
| Net weight | 12kgs | ||