Detection Technology
10A Transformer DC Winding Resistance Tester
time：2025/7/17 source：Wuhan UHV reading：1242 time
The UHV-10A Transformer DC Winding Resistance Tester is a high-precision instrument designed for accurate measurement of winding resistance in power transformers, reactors, and other electrical equipment. Utilizing advanced DC current injection technology, this portable yet powerful tester provides reliable results essential for evaluating winding integrity, detecting loose connections, and identifying potential faults in transformer manufacturing and maintenance applications.
At the core of the UHV-10A Transformer DC Winding Resistance Tester performance is its sophisticated measurement system capable of delivering test currents up to 10A DC with exceptional accuracy (±0.2% reading ±2 digits). The instrument employs intelligent current stabilization technology to overcome inductive effects in large transformers, significantly reducing measurement time while maintaining precision. Its automatic demagnetization function ensures the elimination of residual magnetism after testing, protecting transformer core integrity and preventing interference with subsequent diagnostic tests.
The UHV-10A Transformer DC Winding Resistance Tester features a rugged, field-portable design with a clear LCD display that shows resistance values, test current, and measurement status in real-time. An advanced temperature compensation function automatically adjusts readings to standard reference temperatures (typically 20°C or 75°C) for consistent result interpretation. The unit's built-in data storage can record hundreds of test results with timestamps, while USB connectivity enables easy data transfer for detailed analysis and reporting.
Safety is paramount in the UHV-10A Transformer DC Winding Resistance Tester design, incorporating multiple protection mechanisms including overcurrent protection, automatic discharge, and alarm functions for abnormal conditions. Its efficient switching power supply design allows operation from various power sources, making it suitable for both laboratory and field testing environments. The instrument's versatility extends to testing various transformer configurations including star and delta windings, with special consideration for on-load tap changers during resistance measurements across different tap positions.
By combining high measurement accuracy with robust construction and user-friendly operation, the UHV-10A Transformer DC Winding Resistance Tester provides electrical testing professionals with a reliable tool for critical winding resistance assessments. Its comprehensive capabilities support quality control in transformer manufacturing, routine maintenance testing, and thorough diagnostic investigations, contributing to improved equipment reliability and extended service life in power systems.
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