What is the primary purpose of protective relays in power systems?

What is the primary purpose of protective relays in power systems?

Step 1: Understand that a power system is made up of various components like generators, transformers, and transmission lines.
Step 2: Know that sometimes these components can have problems, called faults, which can cause damage.
Step 3: Learn that protective relays are special devices used in power systems.
Step 4: Recognize that the main job of protective relays is to detect these faults when they happen.
Step 5: Understand that once a fault is detected, the protective relays help to isolate or disconnect the affected part of the system.
Step 6: Realize that this isolation helps to prevent further damage to the power system and keeps it safe.

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