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In a power system, what does the term 'protection relay' refer to?

Practice Questions

Q1
In a power system, what does the term 'protection relay' refer to?
  1. A device that measures voltage
  2. A device that controls power factor
  3. A device that detects faults and initiates circuit interruption
  4. A device that regulates frequency

Questions & Step-by-Step Solutions

In a power system, what does the term 'protection relay' refer to?
  • Step 1: Understand that a power system is a network that delivers electricity.
  • Step 2: Know that faults are problems in the electrical system, like short circuits.
  • Step 3: Learn that protection relays are special devices used in power systems.
  • Step 4: Realize that these relays monitor the electrical system for any faults.
  • Step 5: When a fault is detected, the protection relay sends a signal.
  • Step 6: This signal tells the circuit to stop the flow of electricity.
  • Step 7: Stopping the electricity helps prevent damage to the system.
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