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Composite Resin Silicon bushing type Comem CRS (IEC/IEEE)

Comem CRS is a non-condenser, non-graded dry bushing, which enables customer to benefit from the advantages of silicone rubber insulator by getting rid of brittle porcelain and oil explosion risks. Firstly, an organic insulation resin layer is directly molded on the conductor rod. Afterwards, the silicone rubber insulator is molded on top to create the final shed profile. In contrast with porcelain bushings, the Comem CRS installation is very easy and performed by means of a single flange capable to manage both EN and DIN standards.

Why Hitachi Energy?

  • Complete range and outstanding performance under the most demanding conditions
  • 10 years of proven reliability in all continents
  • State-of-the-art production facilities and 100 years of transformer manufacturing experience
  • Flexible design allows for adaptation to different customer needs and transformer requirements
  • Completely dry bushing, ie, no oil spills, no explosion risk
  • No maintenance or constant monitoring necessary
  • Transport and storage is possible in all positions
  • Partially discharge-free up to double service voltage

Product scope:

  • Dry bushing
  • No shattering in case of failure
  • Low partial discharges level
  • Minimum temperature -60°C
  • Suitable for off-shore environment
  • Compliant with IEC 62217
  • Pollution test heavy - to - very heavy as specified by IEC 60185
  • Qualified as per IEC60137 and IEEE C57.19.01- 2000
  • IEC range: Um ≤ 72.5 kV, Ir ≤ 6300A
  • IEEE range: Um ≤ 34.5 kV, Ir ≤ 3000A

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