Download GTU BE/B.Tech 2018 Winter 8th Sem Old 180801 Testing And Installation Of Electrical Equipments And Systems Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-VIII (OLD) EXAMINATION — WINTER 2018

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Instructions:

1. Attempt all questions.

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2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

1. Q.1 Draw and explain waveform for the following conditions:
   (I) outage and Surge (II) Harmonic and Voltage Sag.

   (07)

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2. Q.2 Explain the seven principles of safety management in electrical plants.

   (07)

3. Q.3 Explain the procedure and significance of temperature rise test with necessary figure and its co-relation with rated normal current.

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   (07)

4. Q.4 Describe the second characteristic numeral in the standard designation of cooling system.

   (07)

   OR

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   What is the IEEE recommended practice for Monitoring Electric Power Quality?

5. Q.5 Explain the work and Procedures of Hot —line Maintenance.

   (07)

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6. Q.3 Describe oscillographic tests on electrical equipment. Give example of a typical test record.

   (07)

   OR

   State the causes of disturbances in power quality and list the power quality improvement facilities for each variable of electrical power supply?

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7. Q4 State various types of enclosures used for rotating electrical machines.

   (07)

8. Q4 What is drying-out of an electric rotating machine? Why and when is it necessary?

   (07)

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9. Q.5 Give summary of auxiliary systems in substations and state their functions.

   (07)

   OR

   State the conditions for which HVDC Links are preferred?

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10. Q.5 Explain the procedure of design of transmission towers and structures.

    (07)

11. Illustrate the schematic of bipolar 2-terminal HVDC link and define functioning of all parts of it.

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    (07)

12. Explain the main functions of SCADA.

    (07)

    OR

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    Explain the principle of fiber -optic data transmission.

13. What is the meaning of compensation of reactive power? Why is it necessary?

    (07)

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