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What is the primary purpose of a surge arrester?

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Question: What is the primary purpose of a surge arrester?

Options:

  1. To increase voltage
  2. To protect equipment from voltage spikes
  3. To measure current
  4. To regulate frequency

Correct Answer: To protect equipment from voltage spikes

Solution: 

Surge arresters are used to protect electrical equipment from voltage spikes caused by lightning or switching operations.

What is the primary purpose of a surge arrester?

Practice Questions

Q1
What is the primary purpose of a surge arrester?
  1. To increase voltage
  2. To protect equipment from voltage spikes
  3. To measure current
  4. To regulate frequency

Questions & Step-by-Step Solutions

What is the primary purpose of a surge arrester?
  • Step 1: Understand that electrical equipment can be damaged by sudden increases in voltage.
  • Step 2: Recognize that these increases in voltage can happen due to lightning strikes or when electrical systems are switched on or off.
  • Step 3: Learn that a surge arrester is a device designed to protect electrical equipment from these harmful voltage spikes.
  • Step 4: Conclude that the primary purpose of a surge arrester is to keep electrical equipment safe from damage caused by these voltage spikes.
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