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.
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SPVL Semi-Pantograph Disconnector up to 1000 kV


The Alstom Grid SPVL is a space saving vertical reach disconnector connecting the lower busbar to the upper one via the semi-pantograph arm. Horizontal rather than vertical separation means a space reduction of as much as 30%.

Main Characteristics 

  • Rated voltage from 145 to 1000 kV
  • Equipped with unique pollution and ice-free “L” contact
  • Very clear busbar arrangement and routing results in increased safety
  • Reliable in adverse operating conditions such as high winds and heavy ice
  • Always stable in close position during short circuits
  • Compact: maximum blade dimension in open position is just over half the open gap

Key Benefits 

  • Pollution and ice-free “L” contact
  • Reduced substation space (up to -30%)
  • Very reliable: tested up to 10,000 operations
  • Supplied or easily retro-fitted with 1 earthing switch
  • Fitted with bus transfer contacts
  • Corrosion free materials mean virtually no maintenance
  • Easy start-up and commissioning