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<150kV Range

LQHDR 100kV/1A Damping Resistor - 10kΩ High-Current HV Resistor with 60-Min Operation

High-power 100kV/10kΩ damping resistor rated for 1A continuous current. Features 60-min full-load operation, <5pC partial discharge, and ≤80K temperature rise. Ideal for demanding HV testing applications.


  • US$ 1,736.00
  • Lead time: 30days

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Product Details

Product Tags

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

ParameterSpecification
Rated Voltage100kV AC (60Hz)
Nominal Resistance10kΩ ±0.5%
Rated Current1A continuous
Power Rating100kW
Partial Discharge<5pC at 100kV
Max Temperature Rise≤80K at full load
Full-Load Operation60 minutes continuous at 100kV/1A
Frequency Rating60Hz standard (50Hz available)
Dielectric Strength150kV/1min (IEC 60243)
Impulse Withstand250kV (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 ModeCooling MethodMax DurationTemperature Rise
100% Load (100kV/1A)Natural Convection60 minutes≤80K
100% Load (100kV/1A)Forced Air (2m/s)120 minutes≤65K
80% Load (80kV/0.8A)Natural ConvectionContinuous≤50K

Forced-air cooling extends full-power operation duration by 100%.

Installation Requirements

  1. Mount vertically with minimum 1m clearance to all surfaces

  2. Use HV-rated cables (min. 50mm² cross-section)

  3. Implement forced-air cooling for operations >60 minutes

  4. Ground both terminals via 16mm² copper straps (resistance <0.1Ω)

  5. 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

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