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Power System 24

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Question 1

"Three Unbalanced phasors of 3 Phase system can be resolved into three
symmetrical components" This theorem is known as-

Question 2

The @ (alpha operator) used in reprentation of relation between different
sequence components is-

Question 3

Balanced system has only-

Question 4

Sum of line voltages is always Zero, for-

Question 5

Sum of line currents is always zero, for-

Question 6

Statement 1: Zero Sequence component of line voltage is always zero.
Statement 2: Zero Sequence component of phase voltage may or may not be
zero.

Question 7

For star negative sequrnce component of line voltage and for delta connection
negative sequrnce component of line current-

Question 8

Choose wrong option about Generator-

Question 9

Choose wrong option about Transformer-

Question 10

Choose wrong option about Transmission lines-

Question 11

For which fault, fault current is sqrt(3) times of zero sequence fault current-

Question 12

The most severe fault at generator terminals is-

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Jul 17ESE & GATE EE