Lightning Arrester Explained
Understand lightning arrester operation, overvoltage protection, surge current diversion, and gapless metal oxide arrester construction.
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- arrester
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Course Duration
15 Minutes -
Course Level
Beginner to Intermediate -
Language
English -
Subtittle Language
English
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Access on all devices
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Quiz
This course explains the purpose and working principles of lightning arresters used in electrical substations. Lightning arresters protect high-voltage equipment such as transformers, circuit breakers, and bushings from overvoltages caused by lightning strikes and power-system switching operations.
The course focuses on the gapless metal oxide arrester, explaining how surge current is diverted through the arrester and discharged safely to Earth. It also introduces the construction of the arrester, including its metal oxide varistor column and stacked metal oxide resistor discs.
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Understand the purpose of lightning arresters
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Explain how lightning strikes create dangerous overvoltages
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Explain how an arrester diverts surge current to Earth
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Identify different types of lightning arresters
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Understand the operation of gapless metal oxide arresters
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Describe the basic construction of a varistor column
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Electrical Engineers
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Power Engineers
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Electrical Technicians
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Electrical Maintenance
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Engineers Engineering Students
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Anyone seeking to understand lightning arrester fundamentals
15 minutes
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Lightning Arrester Explained1 lesson
00:11:17
Lightning Arrester Explained
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Final Quiz1 lesson
Final Quiz
10 Quiz
Talk to an Expert
Fill out the form to get a full overview of this course and all other courses.
-
Course Duration
15 Minutes -
Course Level
Beginner to Intermediate -
Language
English -
Access on all devices
-
Quiz