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Document [9] details every interface required for adaptation on new transformers.
During the design stage, transformer manufacturers are informed of the necessary interfaces in order to equip the transformer tank with:
1 flange, on the transformer cover, if allowed by the High Voltage clearances, or on side of the tank, 20 cm below the cover. Its diameter varies according to the Depressurisation Set selected according to the transformer characteristics. 2 flanges at opposite side may be requested in some cases.
1 support for the Depressurisation Set.
1 or several valves for nitrogen injection, located at the bottom of the transformer. |
