Carbon brushes for Generators & alternators

Generator, turbogenerator and alternator carbon brushes

Mersen offers a wide range of carbon brushes for medium and high-speed applications.  

  • For turbogenerators, our LFC brush grades are internationally renowned, especially LFC 554 grades.
  • For wind mills, CG626, CG677 and MC837 grades are known throughout the world.

Our LFC grades are soft graphite grades which are prepared from graphite powders (natural purified or artificial), agglomerated with appropriate binders to give them good resistance to shocks and mechanical vibrations.

Our CG / MC grades have different copper contents in order to allow high current transmission at variable peripheral speed and conditions.

Generators & alternators carbon brushes: main features

  • Specific designs
  • Selected materials
  • High quality tamping
  • Optimized cable dimensions
  • Good mechanical stability
  • High electrical conductivity
  • Low friction coefficient
  • High transient current density
  • Wide speed range (15 to 100 m/s)
  • Brush wear indicator systems available as an option

Generators and alternators: applications

  • Diesel Electric Locomotives (alternators)
  • Aerospace (generators and alternators)
  • Wind mills (alternators)
  • Hydro-electric plants (generators)
  • Conventional thermal power (turbo generators)
  • Chemical Industry (alternators)
  • Ports & marine (ships)
  • Mining (draglines, electrical trucks, shovels)
  • Oil & Gas (offshore oil rig alternators)
  • Process industries (pulp & paper, steel, cement, sugar plants)