Transformer Testing Instrument
LQHV-100A Transformer DC Resistance Tester
100A Heavy-Duty Winding Analysis
The LQHV-100A sets new industry standards with 100A maximum output current, specifically engineered for testing extra-large power transformers and reactors. Features fully automated microcontroller operation and vertical chassis design for field service efficiency.
Product Parameters
Technical parameters
Current range and range | 100A | 10μΩ~100mΩ |
40A | 50μΩ~500mΩ | |
20A | 100μΩ~1Ω | |
10A | 500μΩ~2Ω | |
5A | 1mΩ~4Ω | |
Accuracy | ± (0.2%±2 words) | |
Resolution | 0.1μΩ | |
Ambient humidity | -10℃~40℃ | |
Relative humidity | ≤80%RH No condensation | |
Working power supply | AC220V±10% 50Hz |
Breakthrough Technology
1. Extreme-Current Testing
⚡ 100A continuous output for 500MVA+ transformers
🔄 On-load tap changer testing without interruption
2. Intelligent Operation
🧠 32-bit microcontroller automation
📈 Auto-refreshing measurements during adjustments
🔋 Smart power management (50% heat reduction)
3. Field-Optimized Design
📏 Vertical chassis for space-constrained substations
🔊 Multi-stage discharge alarms with LED indicators
🖨️ Built-in report generation
Technical Advantages
Micro-Ohm Precision: 5μΩ baseline resolution
Continuous Operation: 8-hour uninterrupted testing
Counter-EMF Protection: 1000V spike immunity
All-Environment Ready: -20°C to 50°C operation
Critical Applications
UHV Transformers: 1000kV+ grid infrastructure
Industrial Megawatt Reactors: Smelter/arc furnace systems
Generator Step-Up Units: Nuclear/thermal power plants
HVDC Converter Transformers: Renewable energy farms
Why Choose LQHV-100A?
✅ Unmatched 100A Output for the largest transformers
✅ Vertical Service Design for substation environments
✅ Military-Grade Protection against field hazards
✅ Smart Energy Management for continuous operation