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Download PTU B.Tech 2021 Jan EE 5th Sem 78704 Switchgear And Protection Question Paper

Download PTU (Punjab Technical University) B.Tech (Bachelor of Technology) / BE (Bachelor of Engineering) 2021 January EE 5th Sem 78704 Switchgear And Protection Previous Question Paper

This post was last modified on 26 June 2021

Tags:PTUB.Tech5th SemesterPrevious Year Question Papers2011-2021Switchgear and ProtectionElectrical EngineeringEE78704Question PaperPDFDownloadPunjab Technical University
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PTU B.Tech 5th Semester Last 10 Years 2011-2021 Previous Question Papers|| Punjab Technical University


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Roll No. | [ L[ 1] | [ 1] Total No. of Pages : 02
Total No. of Questions : 18

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B.Tech. (Electrical & Electronics)/(Electrical Engineering)/
(Electronics & Electrical) (Sem.=5)
SWITCHGEAR AND PROTECTION
Subject Code : BTEE-504B-18
M.Code : 78704

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Time : 3 Hrs. Max. Marks : 60

INSTRUCTION TO CANDIDATES :

  1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
  2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
  3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

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SECTION-A

Answer briefly :

  1. What are the limitations of static relays?
  2. Name the various faults occurring in transformers.
  3. What is meant by Zone of protection?

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  4. What are the duties of a Circuit breaker?
  5. Explain over fluxing protection of transformers.
  6. Explain the term plug setting of a relay.
  7. What are the functions of protective relays?
  8. Differentiate a fuse and CB.

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  9. What do you mean by pilot wires?
  10. What is meant by fusing current of a fuse?

SECTION-B

  1. Explain Restricted Earth Fault protection of Transformers.
  2. Discuss the working of Valve type lightening arresters.

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  3. Discuss the current balance differential protection of feeders.
  4. Explain various theories of arc extinction in CBs.
  5. Discuss the working of Thermal Relays.

SECTION-C

  1. Discuss the various types of faults occurring in Generators. Explain Differential protection scheme of Generators.

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  2. Write a note on following :
    1. Back up protection of bus bars
    2. Rod Gaps
  3. Discuss various types of fuses. Also mention application of each type.

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.

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This download link is referred from the post: PTU B.Tech 5th Semester Last 10 Years 2011-2021 Previous Question Papers|| Punjab Technical University

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This post was last modified on 26 June 2021