UHV-20A DC Resistance Tester
Transformer Winding DC Resistance Measurement
Measuring the DC resistance of transformer windings is an essential test during transformer acceptance, maintenance, and tap-changer adjustments. Traditional methods, such as the bridge method and voltage drop method, are often time-consuming and labor-intensive, particularly for high-power inductive equipment.
To overcome these challenges, our company has developed the DC Resistance Rapid Tester. Utilizing advanced power technology, this instrument delivers stable performance, rapid testing, compact size, lightweight design, and user-friendly operation. It achieves high measurement accuracy and excellent data reproducibility, making it the ideal solution for efficient DC resistance testing of transformer windings and other high-power inductive devices.
4、Enhanced Safety Functions: Equipped with automatic discharge and discharge indication, reducing misuse and ensuring safety for both personnel and equipment.
Parámetros técnicos
| Item | Technical specifications and parameters | Remarks |
| Measure current | 1A, 5A, 10A, 20A | / |
| Measure Range | 1A：10mΩ~20Ω | / |
| 5A：1mΩ~4Ω | ||
| 10A：1mΩ~2Ω | ||
| 20A：1mΩ~1Ω | ||
| Exactitud | ±0.2%（full range） | / |
| Data Storage | 255 | |
| Mostrar | LCD | Resistance display：4 1/2 bits |
| Maximum resolution | 0,1 mΩ | / |
| Fuente de alimentación | AC 220V±22V，50Hz±2 Hz | Fuse 5A |
| Maximum Power Dissipation | 300W | Test current：10A/hour |
| Ambiente de trabajo | Temperature：0℃～40℃ | / |
| Relative Humidity：≤80%RH | ||
| Dimensión | 200╳400╳280 (mm) | / |
| Peso | 6 kilos | Including accessories |
