<150kV Range
LQHDR Series 100kV/10kΩ/1A High-Power Damping Resistor
Engineered for extreme high-current applications requiring maximum power dissipation and stable performance under continuous full-load conditions.
Technical Specifications
| Parameter | Specification |
|---|---|
| Rated Voltage | 100kV AC (60Hz) |
| Nominal Resistance | 10kΩ ±0.5% |
| Rated Current | 1A continuous |
| Power Rating | 100kW |
| Partial Discharge | <5pC at 100kV |
| Max Temperature Rise | ≤80K at full load |
| Full-Load Operation | 60 minutes continuous at 100kV/1A |
| Frequency Rating | 60Hz standard (50Hz available) |
| Dielectric Strength | 150kV/1min (IEC 60243) |
| Impulse Withstand | 250kV (1.2/50μs wave) |
Key Performance Features
Extreme Power Handling: 100kW capability at full load (100kV × 1A)
Advanced Thermal Management: Multi-stage cooling fins maintain ≤80K temperature rise during 60-min operation
Ultra-Low Inductance: <5μH design ensures accurate pulse response
Corona-Free Design: Graded shielding maintains <5pC partial discharge
High Current Terminals: Silver-plated copper connectors rated for 1.5A continuous
Mechanical Design
Robust Construction: Stainless steel core with ceramic insulating segments
Cooling System: Integrated radial fins + optional forced-air adapters
Dimensions: Ø150mm × 1200mm (standard configuration)
Weight: 25kg (base unit)
Mounting: Heavy-duty flange mounting with M16 bolts
Environmental Rating: IP56 (dust/water resistant)
High-Current Applications
Power System Testing
Circuit breaker short-circuit testing
Transformer impulse withstand verification
Generator stator winding tests
Research & Industrial
High-energy physics experiments
Plasma generation systems
Pulsed power applications
Railgun and EM launch systems
Thermal Performance
| Operation Mode | Cooling Method | Max Duration | Temperature Rise |
|---|---|---|---|
| 100% Load (100kV/1A) | Natural Convection | 60 minutes | ≤80K |
| 100% Load (100kV/1A) | Forced Air (2m/s) | 120 minutes | ≤65K |
| 80% Load (80kV/0.8A) | Natural Convection | Continuous | ≤50K |
Forced-air cooling extends full-power operation duration by 100%.
Installation Requirements
Mount vertically with minimum 1m clearance to all surfaces
Use HV-rated cables (min. 50mm² cross-section)
Implement forced-air cooling for operations >60 minutes
Ground both terminals via 16mm² copper straps (resistance <0.1Ω)
Maintain ambient temperature ≤35°C for full-power operation
Compliant with IEC 61010-1:2010 safety standards for high-power test equipment.
Cooling Options
Standard Configuration
Natural convection cooling
60-min full-power operation
120-min cooldown period required
Forced-Air Kit (Optional)
Integrated blower system (240V AC)
Extends full-power operation to 120 min
Reduces cooldown period to 60 min
Airflow: 500 CFM
Liquid Cooling Adapter
Continuous full-power operation
Deionized water circulation system
Flow rate: 10L/min
Maintenance Protocol
Pre-Use: IR test (5kV DC, min. 50GΩ) and visual inspection
After Full-Power Use: 2-hour cooldown before handling
Monthly: Terminal cleaning and torque check (80Nm)
Quarterly: Cooling fin inspection and cleaning
Annual: Full performance validation per IEC 60060-3
Lifetime: Replace after 200 full-power cycles or 3 years
