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Electric actuators for control of hydraulic turbine main valve spools

Electric actuators for control of hydraulic turbine main valve spools

Upon turbine control system upgrade, hydromechanical control column is often replaced. Application of electric actuators for control of turbines main valves spools allows to avoid oil use in the control system and enhance control performance.

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Area of application:

Electric actuators are applied for control of servo motors main valve spools of the following turbines types: 
  • Francis turbine
  • Caplan turbine


Main advantages:

  • High accuracy of task execution
  • Compatibility with any control system
  • Mechanical and electrical duplication
  • Valve spool jamming is impossible
  • Oil-free application
  • High level of monitoring and diagnostics
  • High-level reliability
  • Fast commissioning
  • Fast learning by personnel

Operation peculiarities:

  • Maintenance once per 1.5 - 2 years (upon proper calculation and selection of electric actuators by «Progressive Technologies» Group experts)
  • Routine maintenance time - not more than 2 hours per 1 drive














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