Outstanding control dynamics and very smooth rotation at low speeds

ProTX Inverter Systems for test benches are processor controlled pulse frequency inverters with flux vector control which allow continuous speed control of asynchronous induction motors. When the ProTX Inverter Systems are integrated into test benches, they provide speed and torque control for motor test benches, chassis dynamometers and gearbox test benches.

Thanks to the vector control, outstanding control dynamics and very smooth rotation at low speeds are achieved with the specially designed test bench induction motors.

Key challenges

  • Maximize availability and reliability
  • Local manufacturing/local content
  • Minimize operating and maintenance costs

Technical highlights

  • Power ratings: 1,000 to 4,000kW
  • Voltage: 500 - 690V AC
  • Efficiency: >95% at rated power


Features & Benefits:


  • Air cooled
  • By using modern IGBTs technology, an almost sinusoidal current is achieved
  • Modular, space saving design
  • Protected against open circuit, short circuit and short to earth
  • Operated and programmed using an optional keypad or a PC with a PC operating software
  • Interfaces: Profibus, Canbus, Ethernet
  • CE and UL compliance


  • High uptime: from availability & reliability
  • Lower capex: system needs fewer components
  • Lower cost for structures: from small/compact footprint
  • High efficiency and flexibility
  • Ease of servicing

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