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Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Tests  >  GATE Electrical Engineering (EE) Mock Test Series 2025  >  Test: Power System Stability of Power Systems - Electrical Engineering (EE) MCQ

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


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10 Questions MCQ Test GATE Electrical Engineering (EE) Mock Test Series 2025 - Test: Power System Stability of Power Systems

Test: Power System Stability of Power Systems for Electrical Engineering (EE) 2024 is part of GATE Electrical Engineering (EE) Mock Test Series 2025 preparation. The Test: Power System Stability of Power Systems questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Power System Stability of Power Systems MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Power System Stability of Power Systems below.
Solutions of Test: Power System Stability of Power Systems questions in English are available as part of our GATE Electrical Engineering (EE) Mock Test Series 2025 for Electrical Engineering (EE) & Test: Power System Stability of Power Systems solutions in Hindi for GATE Electrical Engineering (EE) Mock Test Series 2025 course. Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free. Attempt Test: Power System Stability of Power Systems | 10 questions in 30 minutes | Mock test for Electrical Engineering (EE) preparation | Free important questions MCQ to study GATE Electrical Engineering (EE) Mock Test Series 2025 for Electrical Engineering (EE) Exam | Download free PDF with solutions
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 for Test: Power System Stability of Power Systems - 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

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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
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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
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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 for Test: Power System Stability of Power Systems - 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 for Test: Power System Stability of Power Systems - 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 
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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 for Test: Power System Stability of Power Systems - 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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Important Questions for Power System Stability of Power Systems

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Power System Stability of Power Systems MCQs with Answers

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