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Instrument transformer insulation

Usually, surface insulation materials made from pressboard and polyester film or pure polyester film are used for electrical insulation. A baked varnish coating ensures optimum adhesion between the layers after assembly in the measuring transducer.

ABB insulation materials stand out for their high quality, high purity, mechanical strength and optimum oil impregnability.

Why ABB?

  • More than 150 years of experience in insulation
  • Advanced technology to scan the quality of pressboard
  • Material excellence
  • Global footprint


Product scope:

  • Instrument transformers
  • Compliant with IEC standards

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