Gas-Insulated Substation

GIS = Geographic Information Systems....

I'm not sure I understand your question as GIS relates to power... Please Elaborate.

Or provide the meaning of your Acronym, If it does not stand for Geographic Information Systems.

oops.. nevermind.. I just looked at the title. DOH!

Anyone want an omelete? I have plenty of egg to go around... If you dont mind helping me scrape it from my face.

Do you mean Gas Insulated Switchgear?

Try a google search using "SF6 Gas Insulated Switchgear" for more general details, or Gas Insulated Switchgear company websites such as the following.

http://www.sandc.com/default.asp

GIS is Gas Insulated Switchgear that fill with SF6 gas for the dielectric strength (insulation) of the high voltage between each phase inside the gas chamber. The system are the same with the VCB or other switchgear operation. There is nothing special about it.

I think you want to know about the configuration of the GIS system.

Hello, GIS stands for Gas Insulated Switchgear. There is no difference from operation / protection point of view. In GIS, insulating media is SF6 Gas & Switchgears are encapsulated inside SF6 Gas chembers. Main features of GIS, they are very compact thereby require low space and highly reliable. GIS is used mainly in densely populated areas for aesthetic town planning or under severe environmental impact.