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1800 kW Class Braking Resistor System (DC 2900 V)

Designed for DC 2900 V class traction systems, this 1800 kW braking resistor assembly supports long-duration dynamic braking operation in heavy-duty railway applications.

The system integrates high-temperature alloy resistor grids with a forced-air cooling configuration, ensuring stable thermal performance and controlled airflow characteristics under sustained load conditions.

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Key Specifications

  • Rated Power: 1800 kW
  • Voltage Platform: DC 2900 V class
  • Rated Current: 663 A
  • Resistance (20°C): 3.6 Ω ±5%
  • Maximum Element Temperature: 640–650°C
  • Cooling Mode: Forced air cooling
  • Protection Grade: IP23

Cooling System

  • Airflow Requirement: >10 m³/s
  • Integrated 30 kW DC blower motor
  • Series excitation
  • Insulation Class: F/H

Configuration

  • Modular DBU structure
  • Vertical assembly design
  • Designed for long-time braking duty cycles

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