Q.1
14 Marks(a)
What is power system islanding? Why it is needed? What is ideal procedure to restore the grid? Discuss the effects of islanding.
(b)
Write a short note on Load Dispatch Centre.
Gujarat Technological UniversitySummer 2025 examination
GTU 2170901 Interconnected Power System Summer 2025 Question Paper & PDF
B.E. · Electrical Engineering · Semester 7 · Subject code 2170901
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 2:30 PM – 5:00 PM
- Questions
- 5 with internal choice
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Q.2
14 Marks(a)
Derive static load flow equations.
(b)
Explain the classification of buses. What is the significance of slack bus? Why slack bus related quantity does not enter into Jacobean Matrix?
OR
(b)
In the equation YBUS = ATYA, what are matrices Y and A? Also mention their dimensions.
Q.3
14 Marks(a)
Compare GS and NR method of load flow
(b)
Discuss the algorithm of load flow solution using Newton- Raphson method for all type of buses.
OR
(a)
Explain GS method with the help of flowchart
(b)
Give the algorithm with flow chart for a fast decoupled load flow solution
Q.4
14 Marks(a)
Distinguish between steady state, dynamic and transient stability
(b)
Discuss dynamics of synchronous machine and derive the swing equation
OR
(a)
Explain point by point method of stability. State the assumptions made
(b)
How can the transient stability of a system be improved
Q.5
14 Marks(a)
Write short note on unit commitment.
(b)
Explain equal area criteria of stability
OR
(a)
Prove that Md2δ/dt2 = Pm-Pe, Pm is mechanical power, Pe is electromagnetic power and M is angular momentum
(b)
What is synchronizing coefficient? Prove that synchronizing coefficient of a machine should be positive for system stability
More Interconnected Power System papers
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Other Semester 7 subjects
BE Electrical
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About this paper
Official Gujarat Technological University (GTU) examination paper for Interconnected Power System (Summer 2025, B.E. · Electrical Engineering, Sem 7). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.