Serial Hybrid: Power Shift Transmissions – Single Electric Motor with Generator Power

This serial hybrid system for power shift transmissions uses a single electric motor. Transmission operation is managed by a state-of-the-art microprocessor.


High Voltage

Data / Command Signals

System Overview

  • Serial hybrid using generator
  • Frac pump is driven mechanically with hydraulic soft start and creep mode option

Transmission and Controller

  • Twin Disc power shift transmissions
  • Mechanical interface to direct mount e-motor transmission
  • State-of-the-art microprocessor control manages transmission operation

Hybrid Controller

  • Interface with customer-supplied switchgear
  • Communicates with transmission controller for range selection


  • Customer selects and supplies
  • Constant-speed operation

High Voltage Equipment

  • Customer selects and supplies

Hydraulic Power Pack

  • Selection based on application characteristics


  • Not supplied by Twin Disc

Profitable. Sustainable. Powerful.

These innovative hybrid and electric systems support greener power transmission while delivering the reliability you expect from Twin Disc. Explore some of Twin Disc’s hybrid and electrification options, then contact our team of experts to learn about the endless custom solutions available to create the optimal system. With more than a hundred years of experience in the design of innovative power transmission products, Twin Disc understands your needs and delivers the solutions that earn your confidence.

Land-Based / Off-Highway / Mobile Equipment

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Twin Disc specialists are available to work with your technical experts to select the optimal configuration and components for your specific application.

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