LQHV-40A Transformer DC Resistance Tester

Ultra-High Current Winding Analysis

The LQHV-40A redefines large transformer testing with 40A stable DC output, enabling resistance measurements 90% faster than conventional methods. Certified to DL/T 845.3-2004 and GB national standards.

Product Parameters

Technical parameters

Industry-Leading Technology

1. Extreme-Speed Testing

• ⚡ Instant on-load tap changer switching

• 🔄 Auto-refreshing measurements during adjustments

2. Military-Grade Protection

• 🛡️ 40A continuous output stability

• 🔊 Acoustic discharge alarms with visual indicators

• ⚡ Counter-electromotive force protection

3. Advanced Data Management

• 📊 7" color LCD with bilingual interfaces

• 💾 500-test onboard memory

• 🔌 RS485 industrial communication protocol

Technical Superiority

• Micro-Ohm Resolution: 50μΩ baseline accuracy

• Temperature Compensation: Automatic reference temperature conversion

• Field Connectivity: USB flash drive data export

• Rugged Design: Industrial ABS casing (IP54 rated)

Critical Applications

• Extra High Voltage Transformers: 500kV+ substation maintenance

• Generator Step-Up Transformers: Power plant commissioning

• Industrial Reactors: Smelter/Furnace equipment testing

• Manufacturing QC: Production line validation

Why This Tester Stands Out

• ✅ Unmatched 40A Output for large windings

• ✅ Real-Time Tap Changer Testing without interruption

• ✅ Industrial Communication for SCADA integration

• ✅ GB/DL Standard Compliant for regulatory acceptance