Engineered for Demanding HV Applications

The LQHDR 150kV/5kΩ/1A damping resistor provides critical transient suppression in high-power systems. With 1A continuous current capacity and ultra-low partial discharge (<5pc), it="" ensures="" stable="" operation="" in="" 50hz="" power="" networks="" and="" industrial="" equipment.="">

Technical Specifications

Performance Advantages

• High Current Capacity: 1A continuous rating for power-intensive applications

• Ultra-Low PD: <5pC partial discharge ensures insulation integrity

• Thermal Stability: Max 80K temperature rise at full load

• Compact Design: Ø250mm profile for space-constrained installations

• Rugged Construction: Corrosion-resistant housing (IP54 rated)

Industry Applications

High-Power Test Laboratories

Damps oscillations in 150kV impulse generators during dielectric testing per IEC 61083-2.

Utility Substations

Suppresses switching transients in 138kV+ capacitor banks and circuit breakers.

Industrial Rectifier Systems

Controls voltage spikes in HV DC power supplies for electrolysis processes.

Medical Imaging Equipment

Stabilizes X-ray tube circuits in 150kV generator systems.

Installation Guidelines

1. Maintain minimum 600mm clearance from grounded surfaces

2. Ensure ambient temperature ≤40°C (derate 2.5%/°C above)

3. Use corona shields for installations above 100kV

4. Verify creepage distance ≥30mm/kV (per IEC 60664-1)

5. Mount vertically for optimal convection cooling

Compliance & Safety

• Partial discharge: IEC 60270 compliant

• Dielectric strength: 250kV lightning impulse withstand

• Environmental: IP54 protection (dust/water resistant)

• Safety factor: 200% rated voltage for 1 minute

• Flame resistance: UL94 V-0 rated materials

Maintenance Protocol