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The GSA-OA is a high-performance resin-impregnated paper (RIP) transformer bushing designed for oil-air applications. It features a durable Silicone Rubber (SiR) insulator, with the condenser core directly bonded to the silicone rubber. This results in a compact, lightweight design that contains no gas, oil, or other liquids.

The bushing is engineered for flexible installation at any angle—from horizontal to vertical—and includes a 2 kV test tap. It supports both draw lead and solid rod conductor configurations.

The GSA-OA is partial discharge-free and has an exceptionally low dissipation factor, which ensures a service life equal to that of the transformer. Its innovative RIPCOAT sealing system significantly reduces the risk of moisture ingress during handling. The insulator sheds are made from high-temperature vulcanization (HTV) silicone, offering outstanding resistance to erosion. The bushing is also designed to perform reliably in seismically active environments. In addition to meeting international standards, it has undergone a comprehensive testing program that exceeds standard requirements. Furthermore, it is compatible with alternative insulating fluids, offering added flexibility for various applications.

GSA-OA Transformer Bushings

Product scope:

Technology Voltage Current
Resin-impregnated paper (RIP) with silicone insulator 52 to 245 kV ≤2000 A
Higher current ratings are available upon request.

GSA-OA (52 to 245 kV) Transformer Bushings

GSA-OA (52 to 245 kV) Transformer Bushings

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