Renewable & Alternative Energy
As renewable energy generation continues to expand, reliable control, protection and management of electrical power becomes increasingly important.
Power Resistors Engineered for the Energy of Tomorrow
Crohm Resistors designs and manufactures power resistor solutions for solar, wind, energy storage and other alternative energy applications. Our products are engineered to manage excess energy, improve power quality, protect electrical systems and provide dependable operation in demanding environments.
Solar Energy
Large-scale solar installations rely on sophisticated inverter and power-control systems to deliver stable power to the grid. Resistors play an important role in controlling excess energy, supporting inverter operation, improving power quality and protecting electrical equipment.
Crohm load resistors can provide a controlled electrical load during commissioning, testing or operating conditions where generated power needs to be safely dissipated.
During construction and commissioning of large-scale solar installations, photovoltaic arrays may experience extended periods of open-circuit operation before the system is connected to the inverter or grid. Portable resistive load banks can provide a temporary controlled load for the solar array during these periods, helping maintain proper operating conditions and protect the long-term performance of the system.
Crohm braking resistors can also be used with VFD-controlled solar tracking systems to absorb regenerative energy and provide controlled stopping and positioning. Harmonic filter resistors help reduce electrical distortion associated with power conversion equipment, while neutral grounding resistors provide controlled ground-fault protection for transformers and other medium-voltage equipment.
Crohm provides resistor solutions for solar applications including:
- Load Resistors
- Harmonic Filter Resistors
- Neutral Grounding Resistors
- Custom Power Resistor Assemblies
Wind Energy
Wind turbines operate under constantly changing loads, speeds and wind conditions. Power resistors provide a reliable means of controlling regenerative energy, limiting electrical current, dissipating excess power and protecting critical electrical equipment.
Dynamic braking and crowbar resistors absorb excess electrical energy during braking, rapid changes in operating conditions or electrical disturbances. Load and dump resistors provide a controlled path for excess generated energy when it cannot be accepted by the grid or energy storage system. Harmonic filter resistors help improve power quality, while neutral grounding resistors limit ground-fault current and help protect generators, transformers and associated equipment.
Crohm manufactures resistor solutions for wind energy applications including:
- Load and Dump Resistors
- Harmonic Filter Resistors
- Neutral Grounding Resistors
- Custom Power Resistor Assemblies
Energy Storage & Emerging Technologies
As battery energy storage systems and other distributed energy technologies continue to grow, Crohm can provide custom resistor solutions for load testing, energy dissipation, grounding, power conversion and equipment protection.
Engineered for Your Application
Every renewable energy system has different electrical and environmental requirements. Crohm can engineer resistor packages around your specific voltage, resistance, power, energy, duty cycle and enclosure requirements.
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