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>400kV Range

LQHDR 1000kV/5kΩ/.0.3A Damping Resistor: Precision High-Voltage Instrumentation

Technical specifications for the LQHDR 1000kV/5kΩ/0.3A damping resistor featuring ultra-low partial discharge (<3pC) and stable thermal performance for precision measurement applications.


  • Negotiated Price
  • Lead time: 60days

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Product Details

Product Tags

LQHDR 1000kV/5kΩ/0.3A Precision Damping Resistor

Electrical Specifications

ParameterSpecificationStandard
Rated Voltage1000kV ACIEC 60273
Nominal Resistance5kΩ ±0.25%IEEE 4-2013
Rated Current0.3A continuousIEC 60076
Power Rating0.45kWThermal Class A
Frequency50HzIEC 60060-1

Partial Discharge Performance

  • ≤3pC at 50% rated voltage (500kV)

  • Tested per IEC 60270 with EMI-shielded chamber

  • Ultra-low noise design for precision measurement circuits

Exceptional PD characteristics enable accurate readings in sensitive high-voltage instrumentation.

Thermal Stability & Operation

Continuous Operation: 60 minutes at:

  • 100% rated voltage (1000kV)

  • 100% rated current (0.3A)

  • Full power dissipation (0.45kW)

Temperature Rise: ≤100K after 60 minutes continuous operation

Precision Engineering Features

  • Resistance Stability: ±0.05% deviation during thermal transients

  • Low TCR: 5ppm/°C temperature coefficient

  • Voltage Coefficient:

    <0.001%>
  • Construction: Vacuum-encapsulated wire-wound element

Precision Measurement Applications

  • Reference dividers for HV calibrators

  • Partial discharge measurement systems

  • High-voltage probe validation

  • Dielectric loss angle measurement

  • Research laboratory instrumentation

Thermal Management System

  • Cooling Method: Natural convection with optimized surface geometry

  • Thermal Monitoring: Embedded PT100 sensors

  • Material System: Aluminum nitride ceramic substrate

  • Safety Margin: Maintains structural integrity at 150K rise

Operational Protocols

  1. Pre-operation resistance verification (±0.1% tolerance)

  2. Ambient temperature stabilization (23°C ±2°C)

  3. Post-operation cooldown period: 90 minutes minimum

  4. Annual traceable calibration to NIST standards

Compliance & Certification

  • IEC 60273: High-voltage resistors

  • IEEE 4-2013: HV testing standards

  • EN 61326-1: EMC requirements for measurement equipment

  • ISO/IEC 17025: Calibration laboratory requirements

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