GIS Substation

Substation

Compartments of SF6 Gas Insulated Switchgear

Circuit Breaker.

Bulk Oil Circuit Breaker

Small Oil Volume Breaker

Vacuum Circuit Breaker

SF6 Circuit Breaker

Air Blast Circuit Breaker

Current Transformer.

Voltage Transformer.

Earth Switch.

Isolator (Disconnector Switch).

Cable End

SF6 Gas Insulated Switchgear (GIs)

Types of Bays SF6 Gas Insulated Switchgear.
1 Feeder Bay.
2 Transformer Bay.
3 Bus section Bay.
4 Bus coupler Bay.

Drawing

Component of SF6 Gas Insulated Feeder bay

1 High Speed Earth Switche (Line Earth Switch).
2 Isolator for Voltage Transformer.
3 Voltage Transformer. E-HD ,G/
4 Line Isolator. (Disconnector Switch)
5 Maintenance Earth Switches.
6 CT's For Bus-Bar protection.
7 Circuit Breaker.
8 CT's For Line protection and metering.
9 Maintenance Earth Switches.
10 Bus-Bar Isolator

Drawing

Component of SF6 Gas Insulated Transformer bay

1 Bus-Bar Isolator. (Disconnector Switch)
2 Maintenance Earth Switches.
3 CT's For Transformer protection.
4 Circuit Breaker.
5 CT's for Bus-Bar protection and metering.
6 Maintenance Earth Switches.
7 Transformer Isolator.
8 Maintenance Earth Switches. (Transformer E.S)

Drawing

Component of SF6 Gas Insulated Bus section bay

1 Bus-Bar Isolator. (Disconnector Switch)
2 Maintenance Earth Switches.
3 CT's For Bus-Bar protection and metering.
4 Circuit Breaker.
5 Maintenance Earth Switches.

Drawing

Component of SF6 Gas Insulated Bus coupler bay

1 Bus-Bar Isolator. (Disconnector Switch)
2 Maintenance Earth Switches.
3 CT's For Bus-Bar protection and metering.
4 Circuit Breaker.
6 Maintenance Earth Switches.
7 Bus-Bar Isolator.
                                                                                           Drawing

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