HVDC Test System
Ensure Transformer Integrity with Precision DC Resistance Testing
In transformer manufacturing, maintenance, and commissioning, DC winding resistance measurement is a critical diagnostic procedure. The CT Series Transformer DC Resistance Tester delivers fast, accurate assessments to identify hidden defects before they escalate into costly failures.
Detect Critical Defects Early
This advanced tester uncovers risks undetectable by routine inspections:
Material flaws in windings
Poor soldering or welding joints
Loose connections in tap changers
Partial shorts between turns
Open circuits or fractures
Engineered for Speed & Accuracy
Designed for rapid field and lab use, the CT Series features:
Microcontroller automation: Self-check, measurement, data processing, and reporting
Four-terminal measurement: Eliminates lead resistance errors
Wide measurement range: From micro-ohms to kilohms
High-precision electronics: ±0.2% accuracy for reliable diagnostics
One-click operation: Simplified testing workflow
Technical Advantages
| Feature | Benefit |
|---|---|
| Rapid Stabilization | Measures in seconds vs. minutes (traditional methods) |
| Integrated Storage | Saves 100+ test reports with timestamps |
| Direct Printing | Generate compliance-ready PDF/paper reports onsite |
| Robust Design | Built for substation, factory & utility environments |
| Safety Compliance | Meets IEC 60060 & IEEE standards |
Applications Across the Workflow
Manufacturing QC: Validate semi-finished/finished transformers
Preventive Maintenance: Benchmark winding health during outages
Fault Investigation: Diagnose trip causes in grid/distribution transformers
Commissioning: Verify installation integrity before energization
Why the CT Series Outperforms
"Traditional methods take hours to stabilize – the CT Series delivers precise readings in <30 seconds, cutting downtime by 80%."
Key Innovations:
Adaptive current sourcing (1mA-10A) for optimal sensitivity
Temperature-compensated results
6.5-inch LCD with intuitive menus
RS485/USB for SCADA integration
Optimize Your Transformer Reliability
The CT Series DC Winding Resistance Tester transforms diagnostic efficiency. By identifying developing faults early, you prevent:
✗ Unplanned outages
✗ Insulation degradation
✗ Catastrophic transformer failures
Specifications:
Test Current: 1mA to 10A (auto-adjusted)
Accuracy: ±(0.2% rdg + 2 μΩ)
Max Voltage: 28V DC
Resistance Range: 1 μΩ – 20 kΩ
Power Supply: 110V/220V AC or Li-ion battery
