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What is the main purpose of a circuit breaker in a power system?

Practice Questions

Q1
What is the main purpose of a circuit breaker in a power system?
  1. To increase voltage
  2. To provide isolation
  3. To interrupt fault currents
  4. To regulate frequency

Questions & Step-by-Step Solutions

What is the main purpose of a circuit breaker in a power system?
  • Step 1: Understand that a circuit breaker is a safety device in electrical systems.
  • Step 2: Know that its main job is to stop the flow of electricity when there is a problem.
  • Step 3: Recognize that problems can include too much electricity (overload) or a direct short circuit.
  • Step 4: Realize that by interrupting the flow, circuit breakers help prevent damage to wires and devices.
  • Step 5: Remember that this protection helps keep the electrical system safe and functioning properly.
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