AC bushings type GSA-OA
GSA-OA is a dry resin-impregnated transformer bushing for oil-air applications and is available for voltages from 52 to 245 kV. Current ratings are available from 1,250 to 2,000 A.
The GSA bushing can be installed at any angle from horizontal to vertical and is equipped with a 2 kV test tap. Conductor arrangement can be either of draw lead or solid rod type.
- The GSA bushing is partially discharge-free and has a very low dissipation factor, which results in a lifetime equal to that of the transformer.
- The unique sealing system RIPCOAT drastically reduces the risk of moisture ingress during handling.
- The insulator sheds are made from high-temperature vulcanization (HTV) silicone for unsurpassed erosion resistance.
- The GSA bushing has an excellent performance in seismic active areas.
- A comprehensive testing program has been performed in addition to what international standards require.
- It is possible to use alternative insulating fluids.
Product scope:
- Voltage: 52 - 245 kV
- Current: ≤ 2000 A. Higher current ratings on request.
- Technology: Resin-impregnated paper (RIP) with silicone insulator
Get to know more
Catalogs and instructions | |
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Benefits of using the GSA bushing | 1ZSE 2750-117 |
Technical guide | 1ZSE 2750-111 |
Installation and maintenance guide | 2750 515-115 |
General information, resin impregnated bushings | |
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Ordering data form (.doc format) Please note that this is an interactive form, which can be filled in, saved and sent to us by e-mail. |
1ZSC 2750-119 |
Bushing diagnosis and conditioning | 2750 515-142 |
Resin impregnated paper bushings | 2750 515-130 |
Temperature dependency for C1 and tan d for resin impregnated paper bushings | 2750 515-134 |
Comparison between porcelain and silicone rubber for use as outdoor insulation on high voltage bushings | 2750 515-136 |
Silicone rubber | 2750 515-131 |
Pro/E models |
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Pro/E models (compressed zip file) |
Dimension drawings | |||||
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Type designation | Lightning impulse (kV) |
Rated current (A) |
Space for current transformer (m) |
Bushing | Drawing |
GSA 52-OA/2000/0 | 250 | 2000 | 0 | LF 130 052-BA | 2751 362-ABA |
GSA 52-OA/2000/0.3 | 0.3 | LF 130 052-BB | 2751 362-ABB | ||
GSA 52-OA/2000/0.5 | 0.5 | LF 130 052-BC | 2751 362-ABC | ||
GSA 73-OA/2000/0 | 350 | 2000 | 0 | LF 130 073-BA | 2751 362-BBA |
GSA 73-OA/2000/0.3 | 0.3 | LF 130 073-BB | 2751 362-BBB | ||
GSA 73-OA/2000/0.5 |
0.5 | LF 130 073-BC | 2751 362-BBC | ||
GSA 100-OA/1600/0 | 450 | 1600 | 0 | LF 130 100-BA | 2751 362-CBA |
GSA 100-OA/1600/0.3 |
0.3 | LF 130 100-BB | 2751 362-CBB | ||
GSA 100-OA/1600/0.5 | 0.5 | LF 130 100-BC | 2751 362-CBC | ||
GSA 123-OA/1600/0 | 550 | 1600 | 0 | LF 130 123-BA | 2751 362-DBA |
GSA 123-OA/1600/0.3 | 0.3 | LF 130 123-BB | 2751 362-DBB | ||
GSA 123-OA/1600/0.5 | 0.5 | LF 130 123-BC | 2751 362-DBC | ||
GSA 145-OA/1600/0 | 650 | 1600 | 0 | LF 130 145-BA | 2751 362-EBA |
GSA 145-OA/1600/0.3 | 0.3 | LF 130 145-BB | 2751 362-EBB | ||
GSA 145-OA/1600/0.5 | 0.5 | LF 130 145-BC | 2751 362-EBC | ||
GSA 170-OA/1600/0 | 750 | 1600 | 0 | LF 130 170-BA | 2751 362-FBA |
GSA 170-OA/1600/0.3 | 0.3 | LF 130 170-BB | 2751 362-FBB | ||
GSA 170-OA/1600/0.5 | 0.5 | LF 130 170-BC | 2751 362-FBC | ||
GSA 245-OA/1600/0.3 | 1050 | 1600 | 0.3 | LF 130 245-BB | 2751 362-GBB |
GSA 245-OA/1600/0.6 | 0.6 | LF 130 245-BD | 2751 362-GBD |
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