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Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Test  >  GATE Mock Test Series 2027  >  Test: Power System Stability of Power Systems - Electrical Engineering (EE) MCQ

GATE Electrical Engineering (EE) Test: Power System Stability of Systems


MCQ Practice Test & Solutions: Test: Power System Stability of Power Systems (10 Questions)

You can prepare effectively for Electrical Engineering (EE) GATE Electrical Engineering (EE) Mock Test Series 2027 with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: Power System Stability of Power Systems". These 10 questions have been designed by the experts with the latest curriculum of Electrical Engineering (EE) 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 30 minutes
  • - Number of Questions: 10

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Test: Power System Stability of Power Systems - Question 1
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A 500-MVA synchronous machine has H1 = 4.6 MJ/MVA, and a 1500 MVA machine has H2 = 3.0 MJ/MVA. The two machines operate in parallel in a power station. The equivalent H constant for the two, relative to a 100 MVA base will be

Detailed Solution: Question 1

We know that,

Test: Power System Stability of Power Systems - Question 2
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The load carrying capability of a long ac line is

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Test: Power System Stability of Power Systems - Question 3
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Fast acting excitation systems

Detailed Solution: Question 3

Fast field excitation system is one of the method to improve transient stability of the system.

Test: Power System Stability of Power Systems - Question 4
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A shunt reactor in general

Detailed Solution: Question 4

Shunt reactors are used to reduce the effect of Ferranti effect when a medium or a long line is lightly loaded or is on no-load. It doesn’t affect the steady state power transfer limit.

Test: Power System Stability of Power Systems - Question 5
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The angle swings during transients

Test: Power System Stability of Power Systems - Question 6
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If the inertia constant H = 9.0 MJ/MVA for a 50 MVA generator, the stored energy is

Detailed Solution: Question 6


or,
K.E. stored = GH = 50 x 9 = 450 MJ

Test: Power System Stability of Power Systems - Question 7
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Bundled conductors in a transmission line will

Detailed Solution: Question 7

Bundled conductors increases self GMD due to which the series inductive reactance is reduced as a result of which power transferred from sending end to the receiving end is increased. Hence, it improves the steady state stability of the system.

Test: Power System Stability of Power Systems - Question 8
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A 1500 MVA synchronous generator has an inertia constant of 5.0 MJ/MVA. The inertia constant of the machine relative to a 50 MVA base is

Detailed Solution: Question 8

Since inertia constant,

∴ 
or,

Test: Power System Stability of Power Systems - Question 9
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If the initial acceleration power of a 100 MVA, 50 Hz synchronous generator having H= 5 MJ/MVA is Xpu, the initial acceleration in elec-deg/s2 and the inertia constant in M J-s/ele-deg respectively will be 

Detailed Solution: Question 9

From swing equation,

Also, inertia constant,

Test: Power System Stability of Power Systems - Question 10
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The critical clearing angle of a power system is related to

Detailed Solution: Question 10

tcr and δcr are related to transient stability limit. The fault in a power system must be cleared before δ reaches δcr and before tcr.

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About this Electrical Engineering (EE) Practice Test

This test contains 10 MCQs on Power System Stability of Power Systems with detailed solutions for each question. It is part of the GATE Electrical Engineering (EE) Mock Test Series 2027 course on EduRev, designed to align with the current Electrical Engineering (EE) syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

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