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A power system fault is an unhealthy or abnormal electrical condition
such as a short or open circuit, in any component of the power system
(including generators, transformers, busses, transmission lines,
and distribution lines). Power system faults can potentially cause
serious damage to equipment or people and must be detected and isolated
quickly.
- Lightning
- Punctured or broken insulators
- Birds and animals
- Trees, aircraft or vehicles hitting power lines and structures
- Pollution (cement dust, moisture, soot, road salt)
- Ice and snow loading
- Wind
- Natural disasters (hurricanes, tornados, earthquakes)
- Failure of insulation due to moisture
- Mechanical damage
- Flashover caused by overvoltage or abnormal loading
- Fires
- Human error
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Learn more about power system protection.
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