switchgear
thumb|High-voltage switchgear thumb|A section of a large switchgear panel thumb|Tram switchgear thumb|This circuit breaker uses both SF6 and air as insulation.
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- Electrical switchgear.JPG
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- Commons category
- Switchgear
- OpenStreetMap tag
- power=switchgear
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~15 min read
Article
20 sectionsContents
- Components
- Functions
- History
- Housing
- Circuit breaker types
- Oil
- Air
- Gas
- Hybrid
- Vacuum
- Carbon dioxide
- Protective circuitry
- Circuit breakers and fuses
- Merz–Price circulating current scheme
- Distance relays
- Classification
- Safety
- See also
- References
- External links
thumb|High-voltage switchgear thumb|A section of a large switchgear panel thumb|Tram switchgear thumb|This circuit breaker uses both SF6 and air as insulation.
In an electric power system, a switchgear is composed of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment. Switchgear is used both to de-energize equipment to allow work to be done and to clear faults downstream. This type of equipment is directly linked to the reliability of the electricity supply.