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What is the main purpose of a transformer tap changer?

Practice Questions

Q1
What is the main purpose of a transformer tap changer?
  1. To increase the voltage
  2. To decrease the voltage
  3. To adjust the output voltage
  4. To protect the transformer

Questions & Step-by-Step Solutions

What is the main purpose of a transformer tap changer?
  • Step 1: Understand that a transformer is a device that changes electrical voltage levels.
  • Step 2: Know that sometimes the output voltage needs to be adjusted to meet specific requirements.
  • Step 3: Learn that a tap changer is a mechanism on the transformer that allows for this adjustment.
  • Step 4: Realize that by changing the taps, the transformer can increase or decrease the output voltage.
  • Step 5: Conclude that the main purpose of a transformer tap changer is to keep the output voltage at the desired level.
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