AC bushings type GSA-OO
GSA-OO is a dry resin-impregnated transformer bushing for oil-oil applications and is available for voltages from 72 to 245 kV. Current ratings are available from 1,600 to 2,500 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 bushing is partially discharge-free and has a very low dissipation factor, which results in a lifetime equal to that of the transformer.
- Unique sealing system RIPCOAT drastically reduces the risk of moisture ingress during handling.
- 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: 72 - 245 kV
- Current: ≤ 2500 A. Higher current ratings on request.
- Technology: Resin impregnated paper (RIP)
Get to know more
Catalogs and instructions | |
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Benefits of using the GSA bushing | 1ZSE 2750-117 |
Technical guide | 1ZSE 2750-116 |
Installation and maintenance guide | 2750 515-138 |
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 |
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 |
GSA73-OO/2500/0 | 350 | 2500 | 0 | LF 135 073-BA | 2751 365-BA |
GSA73-OO/2500/0.3 | 0.3 | LF 135 073-BB | 2751 365-BB | ||
GSA73-OO/2500/0.5 | 0.5 | LF 135 073-BC | 2751 365-BC | ||
GSA123-OO/2000/0 | 550 | 2000 | 0 | LF 135 123-CA | 2751 365-CA |
GSA123-OO/2000/0.3 | 0.3 | LF 135 123-CB | 2751 365-CB | ||
GSA123-OO/2000/0.5 | 0.5 | LF 135 123-CC | 2751 365-CC | ||
GSA145-OO/2000/0 | 650 | 2000 | 0 | LF 135 145-FA | 2751 365-FA |
GSA145-OO/2000/0.3 | 0.3 | LF 135 145-FB | 2751 365-FB | ||
GSA145-OO/2000/0.5 |
0.5 | LF 135 145-FC | 2751 365-FC | ||
GSA170-OO/2000/0 | 750 | 2000 | 0 | LF 135 170-DA | 2751 365-DA |
GSA170-OO/2000/0.3 | 0.3 | LF 135 170-DB | 2751 365-DB | ||
GSA170-OO/2000/0.5 | 0.5 | LF 135 170-DC | 2751 365-DC | ||
GSA245-OO/1600/0 | 1050 | 1600 | 0 | LF 135 245-EA | 2751 365-EA |
GSA245-OO/1600/0.3 | 0.3 | LF 135 245-EB | 2751 365-EB | ||
GSA245-OO/1600/0.5 | 0.5 | LF 135 245-EC | 2751 365-EC |