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InsemMar 20252019 patternSE Electrical

Power System Engineering-I SPPU Insem Question Paper Mar 2025

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

Open the PDFMost repeated Power System Engineering-I questions
Subject code
203145
Pattern
2019 pattern
Exam
Insem
Session
Mar 2025
Max. marks
30
Time
1 Hour
Semester
IV
Paper code
[6409]-206

Printed for: S.E. (Electrical Engineering) (Insem)

Instructions to the candidates

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

Questions

  1. Q1

    1. a)

      Explain the concepts of Base load plant and Peak load plant and hence explain the advantages of interconnected grid system.

      Also asked:Mar 2026

      [7]
    2. b)

      Maximum demand of a generating station is 100MW. The load factor is 65%. The plant capacity factor and the plant factor are 50% and 80% respectively. Determine: (i) Average demand (ii) The daily energy produced. (iii) The installed capacity of the plant. (iv) The reserve capacity of the plant.

      [8]

  2. Q2

    1. a)

      State different types of tariff and explain Time of day tariff.

      Also asked:Mar 2024

      [7]
    2. b)

      A consumer has a maximum demand of 200 kW at 40% load factor. If the tariff is Rs. 100 per kW of maximum demand plus 10 paise per kWh, find the overall cost per kWh.

      [8]

  3. Q3

    1. a)

      Explain the need of grading of underground cable? Explain any one method.

      [7]
    2. b)

      Derive an expression for insulation resistance of single core cable and determine the insulation resistance of single core cable of length of 4 Km long with a conductor diameter 0.3m and insulation thickness 0.1m and the resistivity of insulation is 5 × 10 12  -m.

      [8]

  4. Q4

    1. a)

      Explain Each layer of sectional view of underground cable with its neat sketch.

      [7]
    2. b)

      Derive the expression for capacitance of single core cable. 

      [8]