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What is Indoor Switchgear ?

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Encyclopedia
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China


What is Indoor Switchgear ?


Indoor Switchgear Definition


Indoor switchgear is defined as a type of electrical switchgear enclosed in a grounded metal case, commonly used for medium voltages.


 

Indoor Switchgear Classification


  • Metal-enclosed indoor switchgear.



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  • Metal-clad indoor switchgear



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Gas-Insulated Systems


Indoor switchgear often uses GIS, insulated with SF6 gas, which has superior dielectric properties compared to air.


 

Metal-Clad Switchgear


This type of indoor switchgear is highly customizable and uses vacuum-type circuit breakers, offering isolated relaying and metering instruments.


 

Advantages of Indoor Substation


  • More reliable and safer



  • Takes lesser space than the outdoor system



  • Easier maintenance and durability



  • Lower operating costs



  • Reduced risk of electrocuting due to grounded metal enclosures



  • More security


  • Lesser prone to environment conditions


 

 

Limitations of Indoor Switchgear


The main drawbacks are higher installation costs and less economic viability for high-voltage applications.


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