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>400kV Range

LQHDR 1000kV/10kΩ/2A Damping Resistor: High-Current Performance with Minimal Temperature Rise

Technical specifications for the LQHDR 1000kV/10kΩ/2A damping resistor featuring ultra-low temperature rise (40K), ≤3pC partial discharge, and 20kW power rating.


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  • Lead time: 60days

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Product Details

Product Tags

LQHDR 1000kV/10kΩ/2A High-Current Damping Resistor

Electrical Specifications

ParameterValueStandard
Rated Voltage1000kV ACIEC 60273
Nominal Resistance5kΩ ±0.25%IEEE 4-2013
Rated Current2A continuousIEC 60076
Power Rating20kWThermal Class H
Frequency50HzIEC 60060-1

Exceptional Thermal Performance

  • Temperature Rise: <40K at 100% rated current (2A)

  • Cooling System: Advanced forced-air cooling with variable-speed fans

  • Thermal Stability: Maintains resistance within ±0.1% during operation

  • Materials: Aluminum nitride core with copper heat spreaders

The revolutionary thermal design enables continuous 20kW operation with minimal surface temperature increase.

Partial Discharge Characteristics

  • ≤3pC at 100% rated voltage (1000kV)

  • ≤2pC at 80% rated voltage (800kV)

  • Measured per IEC 60270 Class I precision

High-Current Operation

Continuous Duty: 60 minutes uninterrupted operation at:

  • 1000kV rated voltage

  • 2A rated current

  • 20kW power dissipation

Advanced Cooling Technology

  • Airflow: 1200 CFM with temperature-controlled fans

  • Heat Exchanger: Micro-channel aluminum design

  • Thermal Monitoring: 8-point infrared sensor array

  • Safety Shutdown: Automatic at 65°C surface temperature

High-Power Applications

  • UHV transformer testing stations

  • HVDC converter valve stress testing

  • High-power laboratory impulse generators

  • Nuclear research facility power systems

  • Rail electrification system validation

Robust Safety Features

  • Dual-stage overcurrent protection

  • Creepage distance: 25mm/kV (25m total)

  • Corona-free design up to 1100kV

  • IP65-rated environmental protection

  • Ground fault monitoring system

Maintenance Protocols

  1. Monthly airflow verification (min 1000 CFM)

  2. Quarterly thermal imaging analysis

  3. Biannual resistance calibration (±0.1%)

  4. Annual dielectric strength test at 1200kV

Compliance & Certification

  • IEC 60273: High-voltage resistors

  • IEEE 4-2013: HV testing standards

  • EN 60076-16: Thermal performance requirements

  • IEC 62271: High-voltage switchgear standards

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