Skip to content
InsemMar 20262019 patternTE Electrical

Power System Engineering-II SPPU Insem Question Paper Mar 2026

All 4 questions from this SPPU insem paper, as printed. Read them here or open the PDF.

Open the PDFMost repeated Power System Engineering-II questions
Subject code
303148
Pattern
2019 pattern
Exam
Insem
Session
Mar 2026
Max. marks
30
Time
1 Hour
Semester
VI
Paper code
Apr-26/TE/Insem-391

Printed for: T.E. (Electrical) (Insem)

Instructions to the candidates

  1. Solve Q1 or Q2 and Q3 or Q4.
  2. Neat diagrams must be drawn wherever necessary.
  3. Figures to the right side indicate full marks.
  4. Use of calculator is allowed.
  5. Assume suitable data if necessary.

Questions

  1. Q1

    1. a)

      This part has equations that don’t show as text. Open the PDF to read it.

      [7]
    2. b)

      For a 400kV, 250km lossless long transmission line have L = 1.6 mH/km and C = 10 nF/km. Find i) Characteristic impedance of transmission line. ii) Propagation constant of the transmission line. iii) Surge impedance loading in MW. iv) Surge impedance loading, if the length of line is doubled.

      [8]

  2. Q2

    1. a)

      Derive the formula for ABCD constants in a long transmission line.

      [7]
    2. b)

      This part has equations that don’t show as text. Open the PDF to read it.

      [3]

  3. Q3

    1. a)

      State following statements are true or false with justification i) If the 50% series capacitive compensation is added in EHVAC transmission line, the power transfer capability of the line halved. [3½] ii) If a parallel line is added in EHVAC transmission line, the power transfer capability of the line doubled. [3½]

    2. b)

      In three phase overhead line the conductors have each diameter of 25mm and are arranged in the form of an equilateral triangle. Assuming fair weather conditions air density factor is 0.98 and irregularity factor 0.97. Find the minimum spacing between the conductors if the disruptive critical voltage is not to exceed 400kV between lines. Breakdown strength of air may be assumed to be 30kV per cm (peak).

      [8]

  4. Q4

    1. a)

      Elaborate any five benefits and two limitations of EHVAC transmission line in details. [5+2]

    2. b)

      This part has equations that don’t show as text. Open the PDF to read it.

      [8]