GE-ALSTOM TRANSACTION Effective 2nd November 2015, GE acquired Alstom’s energy businesses. The Alstom content available on this site is for information purposes only.
Click here for more information.

S3CD - Double Side Break Disconnector up to 550 kV


The Alstom Grid S3CD is a double side break disconnector on which the centre insulator rotates to open and close the switch, and is particularly suitable for installations with low vertical clearance.

Main Characteristics 

  • Rated voltage from 72,5 to 550kV
  • Reliable in adverse operating conditions such as high winds and heavy ice
  • Always stable in the close position during short circuits
  • Rigid and well supported terminal pads permit post insulators and additional space savings
  • Galvanized structural steel channel base assures high strength and rigid design
  • Supplied or easily retro-fitted with 1 or 2 earthing switches
  • Customised solutions available: vertical, underhung and phase-to-phase

Key Benefits 

  • Proven reliability
  • Flexibility
  • High performance with reduced phase-to-phase distance
  • Built-in earthing switches and arc restrictors available
  • Corrosion free materials mean virtually no maintenance
  • Easy start-up and commissioning