Oil and Gas Braking Resistors

High-Power Braking Resistors Built for Demanding Oil & Gas Applications

From land-based drilling rigs to offshore applications, Crohm braking resistors are engineered to safely dissipate the high levels of regenerative energy produced by large VFD-driven motors during rapid deceleration and braking. Our systems are designed around the drive, brake module, duty cycle and application to provide reliable braking performance when it matters most.

Built for Continuous Production

Oil and gas operations demand equipment that can withstand harsh environments, repeated braking cycles and high-energy loads while minimizing downtime. Crohm fan-cooled braking resistors combine high-capacity stainless steel resistor elements with powerful forced-air cooling to provide exceptional energy dissipation in a compact package. Forced-air cooling allows significantly higher power ratings while reducing the enclosure size required compared with naturally ventilated resistor designs. Heavy-duty construction, serviceable components and application-specific engineering make Crohm braking resistors an ideal solution for critical VFD applications operating around the clock.

Oil & Gas Applications

Crohm standard convection and fan-cooled braking resistors can be engineered for a wide range of drilling, production and material-handling equipment, including:

• Top Drives
• Drawworks
• Pump Jacks
• Drilling and Rig Support Equipment
• Other High-Horsepower VFD Applications

Engineered Around Your Drive System

Every application is different. Crohm can size the braking resistor around the actual requirements of the VFD and braking system, including: System Voltage • Resistance • Continuous Power • Peak Power • Braking Energy • Duty Cycle • Braking Time • Cycle Frequency • Ambient Conditions. Proper resistor sizing provides the braking torque and energy absorption required by the application while protecting the drive and braking system from excessive DC bus voltage.

Rugged Fan-Cooled Construction

Available configurations and options include:

• Heavy-duty galvanized, powder-coated or stainless steel enclosures
• High-capacity stainless steel resistor elements
• Horizontal and vertical airflow configurations
• High-performance industrial blower assemblies
• Filtered and guarded air intakes
• Protected exhaust openings and weather resistant hoods
• Heavy-duty power terminals
• Separate control and termination compartment
• Airflow monitoring
• Differential pressure switches
• Over-temperature protection

High Power. Fast Braking. Reliable Performance.

Whether the application requires hundreds of kilowatts or megawatt-level braking capacity, Crohm can engineer a natural convection or fan-cooled resistor system specifically for the drive and operating cycle. Our goal is simple: provide dependable braking performance, maximize equipment availability and keep your operation running.