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AE-JE Foundation EE : Power Systems Quiz - 9

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Question 1

The failure of a thermal relay may occur due to

Question 2

To prevent the maloperation of differentially connected relay while energizing a transformer, the relay restraining coil is based with

Question 3

A Buchholz relay is

Question 4

Mho relay is normally used for the protection of

Question 5

What is the relation between skin depth and frequency?

Question 6

Reactance and impedance relay are used for _______ respectively.

Question 7

The operation of distance relay depends upon

Question 8

If the fault current is 2000 A, the relay setting 50% and C.T. ratio is 400/5. The plug setting multiplier is

Question 9

The least expensive protection for low voltage system is ______.

Question 10

The earth potential is

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Aug 13AE & JE Exams