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RVUNL EE POWER SYSTEM QUIZ 4

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Question 1

If Z1, Z2, Z0 are positive, negative and zero sequence impedances of a fully transposed transmission line, then

Question 2

The zero-sequence current of a generator for line to ground fault is j4 pu. Then the current through the neutral during the fault is

Question 3

When the sinusoidal steady state current is called the symmetrical short circuit current, then the unidirectional transient component is called

Question 4

The maximum permissible time of de-energization of the faulty circuit is dependent on

Question 5

Series reactors are used to

Question 6

An alternate has 20%, 25% and 5% positive, negative and zero sequence reactance’s. What is the value of neutral grounding reactance so that the fault current for single line to ground fault is equal to rated line current?
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Jun 20AE & JE Exams