High Voltage Impulse Resistors

Precision Wave-shaping and
Measurement for HV Test Systems

Overview

High Voltage Impulse Resistors are specialized components used in impulse voltage and current testing systems to accurately shape and control the impulse waveform. These resistors play a critical role in generating standard lightning and switching impulse waves by forming the front and tail shaping networks of an impulse generator circuit.

Carona Power designs and manufactures precision impulse resistors engineered to withstand high voltage stress, high energy discharge, and repetitive impulse operation. Our resistors ensure reliable waveform performance, stable resistance values, and long service life under demanding high-voltage test conditions.

Key Features

Key Features

  • Low inductance design
  • High impulse energy tolerance
  • Precision resistance values
  • Multiple terminal options including eyelets, threaded studs,and quick-connect clamps
  • Customizable physical form factor
Type of ResistorPrimary FunctionResistance ValueEnergy RatingVoltage Rating
Front ResistorTo control the front time of the impulse wave0.5Ω - 100kΩ1kJ to 50kJ50kV to 250kV
Tail ResistorTo control the tail time of the impulse wave0.5Ω - 100kΩ1kJ to 50kJ50kV to 250kV
Damping ResistorShapes impulse waveform by controlling oscillations10Ω - 1kΩ5kJ to 300kJ50kV to 3MV
Charging ResistorLimits charging current to energy storage capacitors500Ω - 100kΩ1kJ to 50kJ50kV to 250kV
Protection ResistorUsed to discharge the whole energy stored in the multistage impulse generator during power failure100Ω - 5kΩ10kJ to 500kJ50kV to 250kV
Divider ResistorUsed in Voltage dividers for measurement500Ω - 100kΩ1kJ to 50kJ10kV to 1MV
Discharge ResistorUsed to safely discharge the energy stored in the capacitor500Ω to 10MΩ5kJ to 100kJ10kV to 250kV
Grounding ResistorUsed to safely discharge the energy stored in the capacitor500Ω to 10MΩ5kJ to 200kJ10kV to 1MV

Typical Applications

  • Standard Lightning Impulses 1.2/50 µs
  • Standard Switching Impulses 250/2500 µs
  • Standard Current impulses 4/10, 8/20 µs
  • Non-standard impulses voltages & currents
  • Oscillatory impulse voltages
  • Wave damping resistor
  • Discharge resistor for energy storage capacitors
  • Resistive dividers for Measurement
  • Charging resistor for current limiting
  • Protection resistor for safe discharging

Ordering Information

  • Application (Impulse wave shaping / DC Capacitor Charging / Capacitor Discharging / Grounding / Current Limiting)
  • Resistance Value (Ω) and Tolerance
  • Voltage (kV) and Pulse Energy (kJ)
  • Time between two impulses and duty cycle
  • Continuous power in Watts for AC and DC application
  • Operating medium: Air / Oil
  • Physical dimensions and mounting type
  • Terminal Specifications
  • Environmental covering: Sleeve / Tape / Cast