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

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Question: What is the primary function of protective relays in power systems?

Options:

Correct Answer: To detect faults and isolate sections

Solution:

Protective relays are designed to detect faults in the power system and isolate affected sections to prevent damage and ensure safety.

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

What is the primary function 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 or safety issues.
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 people safe.

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