Since gas insulated transformers do not require a conservator, the height of the transformer room can be reduced. In addition, the characteristics of non-flammability and reduced risk of tank explosion mean fire-fighting equipment can be removed from the transformer room.
As a result, the gas insulated transformer, gas insulated shunt reactor, GIS and control panels can be all housed in one room.
Layout Example of 300kV Insulated Substation
Example of Underground Substation
Due to the inherent safety and compact layout of a insulated substation, it is the best solution for substations which are to be built in restricted underground spaces. Gas insulated substations are particularly suitable for underground construction beneath public buildings.
330kV Gas Insulated Underground Substation
Example of Replacement of a Substation
Existing AIS substation (72kV-1200kA, 2 X 15MVA)
After replacement (Gas Insulated Substation)
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