What is the purpose of a circuit breaker in switchgear?

Practice Questions

Q1
What is the purpose of a circuit breaker in switchgear?
  1. To increase voltage
  2. To interrupt fault currents
  3. To measure current
  4. To provide reactive power

Questions & Step-by-Step Solutions

What is the purpose of a circuit breaker in switchgear?
  • 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, like a short circuit.
  • Step 3: Realize that stopping the electricity helps prevent damage to wires and equipment.
  • Step 4: Remember that circuit breakers can be reset after they stop the electricity, allowing the system to work again safely.
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