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AC bushings type GSB

GSB is a dry resin impregnated transformer bushing for oil-air applications, and is available for the voltage range from 245 to 800 kV.

The GSB can be installed in any angle from horizontal to vertical, and is equipped with a 2 or 20 kV test tap. The conductor arrangement is of the draw rod or draw lead type.

Product scope

  • Voltage: 245 - 800 kV
  • Current: ≤ 2,500 A. Higher current ratings on request.
  • Technology: Resin impregnated paper (RIP) with silicone or porcelain insulator

Why ABB?

  • Our unique draw rod system facilitates easy field installation and removal without lowering the oil level.
  • The bushing is free from partial discharges and has a very low dissipation factor, which results in a lifetime equal to that of the transformer.
  • The insulator sheds are made from high temperature vulcanization (HTV) silicone for unsurpassed erosion resistance.
  • Excellent performance in seismic active areas.
  • A very comprehensive testing programme has been performed in addition to what is required by international standards.
  • Possible to use with alternative insulating fluids.

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