GTU Testing And Installation Of Electrical Equipments And Systems - June 2014 Exam Question Paper

GTU Electrical and Electronic Engineering (Semester 8)
Testing And Installation Of Electrical Equipments And Systems
June 2014

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 the standard designations for the degree of cooling. Also explain the first characteristics numeral in the standard degree of cooling designation.

7 M

1 (b) Explain the standard maintenance procedure for a typical motor in factory premises.

7 M

2 (a) Explain the seven principles for safety management.

7 M

Answer any two question from Q2 (b) or Q2 (c)

2 (b) Recommend a safety procedure and precautions in electric plant to prevent an electric shock.

7 M

2 (c) (i) Draw the waveform for the following conditions: (I) outage (II) Surge (III) Harmonic (IV) Voltage Sag

4 M

2 (c) (ii) State the classification of substations.

3 M

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

3 (a) Explain the procedure of investigation of power quality.

7 M

3 (b) Explain the procedure and significance of temperature rise test and its correlation with rated normal current.

7 M

3 (c) What is load shedding? Why is it necessary? How is it carried out and where?

7 M

3 (d) Explain low voltage d.c. system in a substation.

7 M

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

4 (a) Explain the procedure of drying out of electric motor using the (1) radiating lamp (2) drying chambers and resistor heaters.

7 M

4 (b) Explain the procedure of acceptance and storage of induction motor.

7 M

4 (c) Explain the main functions of SCADA.

7 M

4 (d) State the conditions for which HVDC Links are preferred?

7 M

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

5 (a) State the factors to be considered while making a choice of a particular drive.

7 M

5 (b) State and explain essential steps in unit commissioning of synchronous generator.

7 M

5 (c) What is cyclic duration factor? Explain with standard notations. Explain the term MRC, STR and DTR for rotating electrical machines.

7 M

5 (d) List the methods of voltage control in distribution system.

7 M

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