LQHDR 500kV/5kΩ/1A Damping Resistor: Revolutionizing High Voltage Testing Efficiency

Engineering Breakthrough

Weighing under 50kg, the LQHDR 500kV/5kΩ/1A damping resistor sets a new benchmark for high-voltage test equipment. Designed for 50Hz applications in power utilities and testing laboratories, this compact solution delivers exceptional partial discharge performance while maintaining thermal stability during extended operations.

Technical Specifications

Breakthrough Performance Features

Ultra-Low Partial Discharge

• 500kV operation: <5pC ensures precision measurements

• 400kV performance: <2pC for sensitive diagnostic testing

• Triple-shielded electrodes eliminate corona discharge

Advanced Thermal Management

• Carbon-fiber reinforced heat sinks

• Max surface temperature rise: <80K at full load

• 60-minute continuous operation at 5kW

Lightweight Engineering

• Total weight: <50kg (50% lighter than competitors)

• Aerospace-grade aluminum alloy frame

• Compact dimensions for easy installation

Design Innovations

Electrical Architecture

• Non-inductive helical winding (NiCr alloy)

• Graded capacitance shielding rings

• SF₆-compatible insulation system

Mechanical Advantages

• Integrated lifting points for safe handling

• Corrosion-resistant anodized surfaces

• Vibration-damping mounting system

Critical Applications

Transformer Testing

• Partial discharge measurement circuits

• Induced voltage tests (IVT)

• Lightning impulse wavefront control

Field Testing Solutions

• Mobile substation diagnostics

• Cable fault location systems

• On-site generator commissioning

Operational Advantages

Installation Flexibility

• Minimum clearance: 4.0 meters (500kV)

• Horizontal or vertical mounting

• Rapid deployment with standard lifting equipment

Maintenance Protocol

1. Pre-operational IR scan (≥10 GΩ at 5kV DC)

2. Semi-annual resistance verification

3. Annual PD performance validation

Performance Comparison

Why Choose This Resistor?

• Industry's lightest 500kV resistor (<50kg)

• Ultra-low PD: <2pC at 400kV

• Superior thermal management (<80K rise)

• Optimized for 50Hz power systems

Conclusion

The LQHDR 500kV/5kΩ/1A damping resistor represents a technological leap in high-voltage testing equipment. Its combination of ultra-low partial discharge performance, exceptional thermal efficiency, and groundbreaking lightweight design makes it indispensable for utilities, testing laboratories, and service teams requiring portable, high-precision solutions for critical electrical infrastructure.