What is the purpose of protective relays in a transmission system?

Practice Questions

Q1
What is the purpose of protective relays in a transmission system?
  1. To regulate voltage levels
  2. To detect and isolate faults
  3. To increase transmission capacity
  4. To convert AC to DC

Questions & Step-by-Step Solutions

What is the purpose of protective relays in a transmission system?
  • Step 1: Understand that a transmission system carries electricity from one place to another.
  • Step 2: Know that sometimes there can be problems or faults in the system, like short circuits.
  • Step 3: Learn that protective relays are special devices that monitor the transmission system.
  • Step 4: Realize that when a fault is detected, the protective relay quickly acts to protect the system.
  • Step 5: Understand that the relay isolates the part of the system with the fault, preventing further damage.
  • Step 6: Remember that this helps keep the entire system safe and functioning properly.
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