HV Control Units

HV Control Units

The operation of a transformer rectifier unit always includes a corresponding controller unit. The control unit guarantees optimum adaptation of the high voltage to the operating conditions of the electrostatic precipitator and the associated optimum dust separation in the filter. Normally, the controller units are designed as flashover rate controllers with subordinate voltage and current control functions.

Rico-Werk has successfully developed many generations of controllers for electrostatic precipitators since 1978 and thousands of them are in use worldwide.

Thanks to the continuous further development of the controller units and our many years of experience, we can always offer you an optimum solution:


Current controller units for electrostatic precipitator operation:

  • Gemini (digital controller with fieldbus interface)
  • Prometos (digital controller)
  • Prometos-DP (digital controller with Profibus interface)
  • gamma (digital controller for three-phase technology)
  • gamma-DP (digital controller for three-phase technology with Profibus interface)
  • Typ 835 (analog controller)


About Rico

Rico-Werk Eiserlo & Emmrich GmbH evolved since 1969 into one of the largest manufacturers of high-voltage DC systems for electrostatic precipitator in Europe. So far, we have built over 15,000 installations, which are in use worldwide. Our products include the top technology in the supply of high voltage electrical filters.

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