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.
พารามิเตอร์ทางเทคนิค
| 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 | ||
| ความแม่นยำ | ±0.2%（full range） | / |
| Data Storage | 255 | |
| แสดง | จอแอลซีดี | Resistance display：4 1/2 bits |
| Maximum resolution | 0.1mΩ | / |
| แหล่งจ่ายไฟ | AC 220V±22V，50Hz±2 Hz | Fuse 5A |
| Maximum Power Dissipation | 300W | Test current：10A/hour |
| สภาพแวดล้อมการทำงาน | Temperature：0℃～40℃ | / |
| Relative Humidity：≤80%RH | ||
| มิติ | 200╳400╳280 (mm) | / |
| น้ำหนัก | 6กก | Including accessories |
