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Differential Protection Quiz

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Questions and Answers

What is the main principle of differential protection?

Comparing the electrical conditions at the terminals of the equipment (correct)

Using phasor difference of electrical quantities

Measuring the magnitude of the fault current

Applying currents to the relay coils

What is the drawback of the differential protection principle?

Restriction to protection of specific electrical equipment (correct)

Inability to detect small magnitudes of differential currents

Complexity in the application of CTs

Dependence on the number of winding in the electrical equipment

What is the main component of a differential protection scheme?

Current transformer (CT)

Differential relay (correct)

Fault current limiter

Phasor difference meter

Why is differential protection called unit protection?

<p>It is confined to protection of a particular unit (equipment)</p> Signup and view all the answers

What type of differential relays are most commonly used?

<p>Current differential type</p> Signup and view all the answers

Differential Protection Quiz

Choose a study mode

Podcast

Questions and Answers

What is the main principle of differential protection?

What is the drawback of the differential protection principle?

What is the main component of a differential protection scheme?

Why is differential protection called unit protection?

What type of differential relays are most commonly used?

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