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Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING SEMESTER III • EXAMINATION SUMMER 2018
Subject Code: 330904 Date: 04- 05 2018
Subject Name: Generation and Transmission of Electrical Power
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make Suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of programmable Communication aids are strictly prohibited.
5. Use of only simple calculator is permitted in Mathematics.
6. English version is authentic.
Q.1

Explain the factors to be considered for the selection of site for a thermal
Power station.
07



07

Draw the schematic diagram of Hydro power plant and Explain it.




Q.2

Explain chain reaction in nuclear power station.
07



07

Explain Load curve and load duration curve. State information available from it.




OR

Define safety factor of insulator and Explain the various causes for failure of insulator.
07


Q.3

Derive the equation for calculation of sag for equal level support.
07



07

Explain Nominal method with vector diagram.




OR
Q.3

Draw and explain single line diagram of PLCC system.
07


PLCC
07

Explain the advantages of Inter connection.




Q.4

Explain the construction and working of Brown Bovery Voltage regulator.
07



07

State the checks to be made before starting the Turbo-alternator set.

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OR
Q.4

Write short note on a " Load Dispatch Techniques"
07



07

Explain basic concept of MHD power generation, state its advantages.


MHD

Q.5

Draw Diagram of receiving substation of 220/66kv.
07



07

Compare H.V.A.C. transmission system with H.V.D.C. transmission system.




OR
Q.5

Write short note on" use and scope of H.V.D.C. in India"
07



07

State advantages and limitation of wind power plant.