GTU Electrical Power Generation - May 2015 Exam Question Paper

GTU Electrical and Electronic Engineering (Semester 4)
Electrical Power Generation
May 2015

Total marks: --
Total time: --

INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary

1 (a) Explain working principle of solar photovoltaic cell. Draw and explain the I-V and P-V characteristics of solar photovoltaic cell.

2 M

1 (b) Explain the schematic of nuclear power station in detail with necessary diagram.

5 M

2 (a) Give comparison of steam power station and hydro power station.

7 M

Answer any one question from Q2 (b) & Q2 (c)

2 (b) Draw and explain schematic arrangement of diesel power plant. Give advantages and disadvantages of diesel power plant.

7 M

2 (c) For a steam power plant, explain functions of:
(i) Air Pre Heater (ii) Cooling Tower (iii)ESP (iv) ID Fan (v) Super heater (vi) Condenser (vii) Boiler feed pump

7 M

Answer any two question from Q3 (a), (b) & Q3 (c), (d)

3 (a) Explain pyranometer with diagram.

7 M

3 (b) Explain in brief geared, direct drive and hybrid Wind Power Plant and give their comparison.

7 M

3 (c) Explain construction and working of solar distillation unit with suitable figure.

7 M

3 (d) Derive equation for maximum power of wind turbine.

7 M

Answer any two question from Q4 (a), (b) & Q4 (c), (b)

4 (a) The annual consumption of domestic customer is 1500000 units and annual load factor is 40%. What will be the saving in the average unit cost, if the load factor improves to 100%? Consider two part tariff: Rs. 500 per kW of maximum demand per year + Rs. 0.40 per kWh.

7 M

4 (b) Give schematic arrangement and explain the working of combined cycle gas power plant.

7 M

4 (c) Draw and explain schematic arrangement and its various components for a hydro power station.

7 M

4 (d) Differentiate between Horizontal and Vertical Axis Wind Turbine.

7 M

Answer any two question from Q5(a), (b) & Q5 (c), (d)

5 (a) (i) Enlist various equipment used in substation.

3 M

5 (a) (ii) Draw and explain pole mounted substation with suitable figure.

4 M

5 (b) Define (i) Connected load (ii) Plant capacity factor (iii) Diversity factor (iv) Maximum load (v) Plant use factor (vi) Base load (vii) Peak load

7 M

5 (c) Explain reactance earthing in detail.

7 M

5 (d) Explain construction and working of DFIG.

7 M

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