This type is mostly used in distribution networks and the private customers and entirely composed of the load Breaker Switch Feeder, Circuit Breaker, Fuse Disconnect or and measuring instruments.
GIS Medium Voltage Panels (Gas Insulated Switchgear)
GIS MV panels have high technology compare with the usual fixed and withdrawable panels and are used when the current level of short circuit is high or the needed space is limited. They are usually used in oil, gas, petrochemical, steel, cement industries, power stations, mine and weaving.
Regarding to the small dimensions of the panels (nearly 1/3 of the equivalent distribution substations with small oil or SF6), they are used in limited spaces. Moreover, in attention to the high cost of the land and financial saving the need and tendency to this type of panels grow day by day.
Withdrawable MV panels are effective in distribution networks and main industries such as 63 and 20 KV substations, petrochemical, steel, cement, oil and gas industries which the power interruption should be reduced to the minimum. The transferability and feeders' interchanging should be possible without interrupting the main incoming whenever needed