01-10-2010, 12:09 PM
[attachment=4723]
Gas Insulated Substation (GIS)
Gas Insulated Substation (GIS) is a compact, multi component assembly enclosed in a ground metallic housing which the primary insulating medium is compressed sulphurhexaflouride(SF6) gas. It generally consists components of
a) Bus bars
b) Circuit Breakers
c) Disconnecting switches
d) Earthing switches
e) Current transformers
f) Voltage transformers
g) Cable and boxes
h) Gas supply and gas monitoring equipment
j) Local control
