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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OTEF Voltage Transformer up to 800 kV


Voltage Transformer 

  • Tank type potential transformer 
  • High quality paper-oil insulation
  • Porcelain or composite insulator

Main Characteristics 

  • Up to 765 kV
  • Compliance with IEC, ANSI/IEEE or equivalent standards
  • Superior product with very compact design
  • One core / one coil up to 420 kV (active part in the tank)

Key Benefits 

  • Extensive field experience
  • Operational security
  • Maintenance free
  • Protection against bursting
  • Easy installation – no special tools required
  • Leak proof design and rugged construction for long service life
  • Mineral oil-filled: no PCB
  •  Insulation paper applied mechanically which guarantees a homogenous, high-density paper insulation
  • Seismic design (for 420 kV networks, lower gravity center than competitors)