Power System Engineering-II SPPU Endsem Question Paper Nov 2023
All 8 questions from this SPPU endsem paper, as printed. Read them here or open the PDF.
- Subject code
- 303148
- Pattern
- 2019 pattern
- Exam
- Endsem
- Session
- Nov 2023
- Max. marks
- 70
- Time
- 2½ Hours
- Semester
- II
- Paper code
- [6180]-82
Printed for: T.E. (Electrical)
Instructions to the candidates
- Solve Q1 or Q2, Q3 or Q4, Q5 or Q6 and Q7 and Q8.
- Neat diagrams must be drawn wherever necessary.
- Figures to the right side indicate full marks.
- Use of Calculator is allowed.
- Assume suitable data if necessary.
Questions
Q1
- a)[10]
Take base MVA=2OMVA and base kV=6kV on motor load in figure 1 and draw per-unit impedance diagram to these base values. Figure 1
- b)[8]
Justify the following statements. i) For PV bus active power and voltage of the bus are unknowns. ii) Per unit system is preferred over actual system parameters. iii) The decoupled load flow method is faster than the Newton-Raphson load flow method. iv) The Y-bus matrix is sparse matrix.
OR- a)
Q2
- a)[8]
Prove that per unit impedance of transformer on both sides are same.
- b)[10]
This part has equations that don’t show as text. Open the PDF to read it.
- a)
Q3
- a)[9]
What are the different types of current limiting reactor? With circuit diagram, elaborate operation of each type.
- b)[9]
For the following system if the symmetrical fault is at point F, calculate the fault current.
OR- a)
Q4
- a)[9]
This part has equations that don’t show as text. Open the PDF to read it.
- b)[9]
Find the fault current supplied by each generator if the symmetrical fault is taken place at point F shown in following figure.
- a)
Q5
- a)[8]
This part has equations that don’t show as text. Open the PDF to read it.
- b)[9]
This part has equations that don’t show as text. Open the PDF to read it.
OR- a)
Q6
- a)[8]
This part has equations that don’t show as text. Open the PDF to read it.
- b)[9]
Draw the zero sequence network for the following transformer connections: i) Delta to delta ii) Star to star grounded iii) Delta to star grounded with neutral impedance.
- a)
Q7
- a)[8]
Compare HVDC and EHVAC transmission system based on following points with due justification i) Insulation requirement ii) Power transfer capability iii) Economics iv) Right of way
- b)[9]
Draw the complete single line diagram of HVDC system showing all components and elaborate any three components in detail.
OR- a)
Q8
- a)[8]
Write short note on : i) Bipolar HVDC link ii) Multi terminal HVDC link
- b)[9]
- a)