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UPPCL AE EE : Power Systems Quiz 6

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Question 1

Unbalanced loading of synchronous generator is protected by which relay?

Question 2

The line trap unit employed in carrier current relaying

Question 3

The rate of rise of re-striking voltage (RRRV) is dependent upon?

Question 4

(i) Fault current = 1000 Amp

(ii) CT Ratio = 80:1

(iii) Relay setting = 150%

Then PSM (plug setting multiplier) of relay is

Question 5

The Reset to pickup ratio of EM attraction type principle relays is_____.

Question 6

Which one of the following is not a basic functional characteristic of a protective relay?

Question 7

Mho Relay is used for protection of

Question 8

Consider the following statements regarding microprocessor base relay’s, select correct statements

1. it has less burden

2. it is faster in operation

3. it has less installation as well as maintenance cost

Question 9

For generator protection, which relay would be used if there is loss of prime mover?

Question 10

In which of the following circuit breaker current chopping mainly occurs?

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