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Gas Insulated Substation: Learn the Purpose, Cost, and Lead

GIS substation

If you are interested in the products of GIS surge arrester,porcelain insulator,composite insulator, please contact changsha rich for more information,

Purpose of Gas Insulated Substation
Air has a dielectric strength of 33kV/cm. SF6 gas, on the other hand, has a dielectric strength of ~83kV/cm. Naturally, when the live parts are immersed in a pressurized gas chamber they can be placed a lot closer. Every piece of equipment (except the transformer or any other coil product) that makes up a substation can be neatly packed in an enclosed gear that is filled with SF6.
Cost of gas insulated substation
  • Single leg/bay of 138kV breaker and a half substation (not including protective relays – equipment only): ~$500,000.
  • 345kV gas-insulated bus only: ~$2,600 dollars per feet.
changsha rich power has served the electricity users from the world over 20 years. The price of our GIS is lower than the above cost.

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