Engineered for Critical High-Voltage Applications

The LQHDR damping resistor delivers precision partial discharge (PD) suppression in high-voltage systems. With certified <5pC PD level at rated voltage and robust 10kV/0.1A capacity, it prevents voltage oscillations in:

• Impulse voltage generators

• HV test equipment circuits

• Power transformer diagnostic systems

• Partial discharge measurement setups

Key Technical Specifications

Performance Advantages

Ultra-Low PD Design

Specialized resistive material maintains <5pC partial discharge at 10kV - critical for sensitive PD measurement systems requiring minimal background noise.

Robust Thermal Management

Alumina-ceramic core with nickel-chromium alloy windings ensures maximum temperature rise of 80K at full load during 60-minute operations.

Damping Efficiency

10kΩ resistance with ±1% tolerance provides precise wavefront control in:

• Lightning impulse circuits (1.2/50μs)

• Switching surge tests (250/2500μs)

• DC ripple suppression

Compliance & Safety

Designed to meet international standards for HV components:

• IEC 60270: Partial discharge measurements

• IEC 60076-14: Power transformer applications

• IEC 60137: Bushings for alternating voltages

• Dielectric strength: 30kV/min (tested)

Application Notes

Installation

Mount vertically with minimum 25mm clearance to grounded surfaces. Use corona rings above 8kV applications.

Maintenance

Annual insulation resistance test: ≥1000MΩ @ 5kV DC (per IEC 60480)