Skip to content
EndsemNov 20242019 patternTE Electrical

Power System Engineering-II SPPU Endsem Question Paper Nov 2024

All 8 questions from this SPPU endsem 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
Endsem
Session
Nov 2024
Max. marks
70
Time
2½ Hours
Semester
II
Paper code
[6353]-68

Printed for: T.E. (Electrical Engineering)

Instructions to the candidates

  1. Answer Q1 or Q2, Q3 or Q4, Q5 or Q6, Q7 or Q8.
  2. Neat diagrams must be drawn wherever necessary.
  3. Figures to the right indicate full marks.
  4. Use of Calculator is allowed.
  5. Assume suitable data if necessary.

Questions

  1. Q1

    1. a)

      Find the Y-BUS of the following system.

      Also asked:May 2024

      [10]
    2. b)

      Prove that per unit impedance of a transformer referred to primary and secondary is same.

      Also asked:May 2025

      [7]

  2. Q2

    1. a)

      Take base MVA = 25MVA and base kV = 11kV on the generator and draw per unit reactance diagram to these base values.

      Also asked:May 2024

      [10]
    2. b)

      Give a detail classification of the buses used in load flow analysis. 2

      Also asked:May 2023

      [7]

  3. Q3

    1. a)

      Calculate fault current (in kA) supplied by the alternator and terminal voltage of the alternator, if the three-phase bolted fault occurs at point F. Take base at 100MVA, 11kV on alternator.

      Also asked:May 2024

      [10]
    2. b)

      Write short note on “Tie Bar Current Limiting Reactors.”

      [7]

  4. Q4

    1. a)

      If three-phase fault occurs at point F, find the fault current supplied by each generator in kA. Take base of 100MVA, 11kV on generator side.

      Also asked:May 2024

      [10]
    2. b)

      State whether the following statements are true or false with justification i) In case of a phase fault at the terminal of an unloaded alternator, the subtransient state current is greater than the transient and steady state current. ii) The current limiting reactor is used to increase the fault level..

      [7]

  5. Q5

    1. a)

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

      [10]
    2. b)

      Derive the equation of fault current in line to ground fault. 3

      Also asked:Nov 2025 ·May 2025 ·May 2024 ·May 2023

      [8]

  6. Q6

    1. a)

      A 50MVA, 11kV, three phase synchronous generator was subjected to different types of faults without fault impedance. The generator neutral is solidly grounded. Find the per unit values of three phase sequence reactance of the generator if the fault currents are as follows: LGfault = 4200 A , LLfault = 2600 A , LLLfault = 2000 A .

      [10]
    2. b)

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

      [8]

  7. Q7

    1. a)

      Write short note on i) Bipolar HVDC link ii) Back to back HVDC station

      [10]
    2. b)

      Compare HVDC and EHVAC transmission systems.

      Also asked:May 2024 ·May 2023

      [8]

  8. Q8

    1. a)

      Draw the complete single line diagram of HVDC system showing all components and elaborate on any three components in detail.

      Also asked:May 2024 ·Nov 2023 ·May 2023

      [10]
    2. b)

      Explain constant current control used in HVDC transmission. 

      Also asked:May 2025 ·Nov 2023

      [8]