The XHZ1010SC DC Resistance Tester is a mandatory testing device for semi-finished and finished transformer products during factory acceptance tests, installation, overhauls, tap changer adjustments, commissioning tests, and preventive maintenance conducted by power utilities. It inspects the welding quality of winding joints, detects inter-turn short circuits in windings, verifies the contact reliability of voltage tap changers at all positions and the consistency between actual and indicated tap changer positions, checks for broken lead wires, and identifies strand breaks in multi-strand parallel windings. Adopting advanced power supply technology, the instrument features compact size, light weight, high output current, excellent repeatability, strong anti-interference capability, and comprehensive protection functions. Controlled by a high-speed single-chip microcomputer, it achieves high automation with automatic discharge and discharge alarm functions, enabling rapid and accurate measurement of transformer DC resistance.
Technical Parameters| Parameter | Specification |
|---|---|
| Model | XHZ1010SC |
| Measurement Range | 0.5mΩ ~ 50kΩ (six ranges) |
| Range Details | 100Ω-50kΩ / 1Ω-200Ω / 100mΩ-50Ω / 10mΩ-10Ω / 5mΩ-3Ω / 0.5mΩ-0.2Ω |
| Test Current | <20mA / 40mA / 200mA / 1A / 3A / 10A |
| Accuracy | ±(0.2% + 2 digits) / ±(0.5% + 2 digits) |
| Test Cable Length | Standard 5 meters, customizable |
| Ambient Temperature | 0°C to 40°C |
| Ambient Humidity | ≤ 85% RH |
| Power Supply | Lithium battery powered |
| Operation | Touchscreen + digital display |
Designed for transformer manufacturing workshops performing production-line outgoing inspection, transformer overhaul and repair workshops, and electrical maintenance departments that need a handheld touchscreen tester for rapid winding resistance verification during production, overhaul, and tap changer maintenance. With 10A output across six current gears, a 0.5mΩ-50kΩ range, and customizable test cables, it is tailored for winding weld inspection, inter-turn short circuit detection, and tap changer contact verification in workshop environments. Unlike battery-mobility models positioned for outdoor field commissioning, this model emphasizes detailed technical specifications and production-line winding quality inspection.
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