SR Drives


A relatively new area for Darrah Electric Co. Switch Reluctance Drives is a growing market. With our ties to other industries, we have developed a limited range of SR Drive Power Assemblies, both Water-Cooled and Air-Cooled using various Semiconductor topologies.

Switch Reluctance Motors are used in applications that require High starting Torque, High speed and/or a wide range of constant power.

Typical applications would be:
  • Compressors
  • Pumps
  • Fans

Current Designs

Water Cooled

  • Using IGCT’s – 1.8MW – 2200VDC Link

Air Cooled

  • Using IGBT’s – 1000kW – 650VDC Link
  • Using IGBT’s – 300kW – 650VDC Link
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