Detection Technology
50A Transformer DC Winding Resistance Tester
time：2025/7/17 source：Wuhan UHV reading：1287 time
The UHV-50A Transformer DC Winding Resistance Tester represents the ultimate solution for fast and accurate winding resistance measurements in large power transformers and high-current electrical equipment. Engineered for demanding field and laboratory applications, this high-current tester delivers unparalleled performance with its massive 50A DC test current capability, enabling precise resistance measurements even on the largest utility-grade transformers and high-power reactors.
Advanced Measurement Technology
The UHV-50A Transformer DC Winding Resistance Tester incorporates cutting-edge constant current sourcing technology that maintains exceptional stability (±0.2% current regulation) throughout the measurement process. Its proprietary anti-inductive measurement algorithm dramatically reduces testing time for large inductive windings - completing measurements up to 80% faster than conventional testers. The system achieves remarkable ±(0.1% reading + 0.1% range) basic accuracy across its full measurement range from 10μΩ to 20kΩ, with resolution down to 0.1μΩ for detecting the most subtle winding irregularities.
Intelligent Test Automation
This sophisticated tester features fully automatic operation with intelligent test sequence programming. The system automatically selects optimal test current based on winding characteristics, performs temperature compensation to standard reference values (20°C/75°C), and executes complete demagnetization cycles post-measurement. Its advanced OLTC (On-Load Tap Changer) testing mode automatically sequences through all tap positions with configurable stabilization criteria, significantly simplifying routine maintenance testing.
Robust Design & Safety Features
Built for harsh substation environments, the UHV-50A Transformer DC Winding Resistance Tester boasts industrial-grade construction with IP54 protection and vibration-resistant components. The integrated safety system includes multiple redundant protections: over-temperature monitoring, emergency stop circuit, automatic discharge, and ground continuity verification. A unique current interrupt design prevents arcing during test lead disconnection, while the isolated measurement circuitry ensures operator safety during high-current testing.
Enhanced Data Management
The tester's high-resolution color touchscreen displays real-time resistance curves and current profiles during measurement. With capacity for 10,000 test records and comprehensive data logging (including ambient conditions and operator notes), the system generates professional test reports in multiple formats (PDF/Excel). Wireless connectivity options enable remote monitoring and integration with transformer asset management systems.
Application Versatility
Beyond conventional transformer testing, the UHV-50A Transformer DC Winding Resistance Tester excels in various specialized applications:
Generator rotor winding resistance measurements
High-current busbar and circuit breaker contact resistance testing
Grounding grid and neutral resistance evaluations
Manufacturing quality control for large power transformers
The UHV-50A Transformer DC Winding Resistance Tester sets new standards in winding resistance testing by combining unprecedented 50A test capability with laboratory-grade precision and rugged field reliability. Its advanced features and automation capabilities make it the preferred choice for power utilities, OEM manufacturers, and service companies working with high-capacity electrical equipment where measurement accuracy and operator safety are paramount.
Copyright description: all articles, pictures, video and other materials on this site belong to wuhan huatian power automation co., LTD. For use, please contact us; Permission to reprint articles, pictures, video and other materials please quote "from: huatian power".
Two-In-One Distribution Transformer Test System | 2025/7/17 | reading1292time 10A Transformer DC Winding Resistance Tester | 2025/7/17 | reading1248time return