Substation
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Electrical Substations     

Compartments of SF6 Gas Insulated Switchgear
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Bus-Bar .                                     

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Circuit Breaker.
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Bulk Oil Circuit Breaker

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Small Oil Volume Breaker

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Vacuum Circuit Breaker

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SF6 Circuit Breaker

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Air Blast Circuit Breaker

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Current Transformer.

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Voltage Transformer.

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Earth Switch.                      

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Isolator (Disconnector Switch).   

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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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