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Electrical Power-II EP-2 6th Sem Dec 2015 Diploma Paper

Electrical Power-II EP-2 6th Semester Dec 2015 Diploma Paper. Download Previous year Electrical Power-II EP-2 6th Sem EE/EEE/5239/Diploma Solved Question Paper.

Electrical Power-II EP-2 6th Sem EEE Dec 2015 Diploma PSBTE Paper

ELECTRICAL POWER 2 EP-II 6TH SEM DIPLOMA PSBTE DEC 2015 PAPER      

Duration : 3 Hrs                                                                                      M.Marks : 75     

                           SECTION A

        1. Fill in the blanks :

      1.To locate the ground fault of single core cable, usually Blavier\’ test is performed.

      2. MCB stands for Mini or Miniature Circuit Breaker.

      3.An isolator is designed to open a circuit under No load condition.

      4.A fuse element should have  High melting point.

      5.HRC stands for High Rupturing Capacity Fuse 

      6.The most commonly used system for the protection of alternator is Differential protection.

      7.Usually automatic protection is not provided for small distribution   transformer.

      8.A lightning arrestor is always connected between _ the Line  and earth.

      9.Ground wire is used to protect transmission line against Direct Lightning Strokes 

    10.The ratio of average load to the maximum load is Load Factor .

                                                                        SECTION-B
Q2. Attempt any five questions.                                                 5×6=30

    (i) Explain different types of faults in transmission line?
   (ii) How is the arc extinguished in an air blast circuit breaker?
   (iii) What are the advantages of SF6 circuit breaker?
   (iv) Draw a neat sketch of induction type over current relay and label the various parts.
   (v) What are the limitations of fuse?
  (vi) Explain the working of buchholz relay?
  (vii) Mention the properties of a good light arrestor?
  (viii) What do mean by tariff? Explain two part tariff ?

                        SECTION-C

     Q3. Attempt any three questions.                                                                                     3×10=30

     a) Draw a neat sketch of a cross-jet explosion pot circuit breaker and explain the principle of arc extinction in it.
     b) Draw a neat sketch of an MCB and explain its working.
     c) Describe in detail the Merz Price system of protection for a 3 phase star-delta transformer
     d) Write short notes on the following (i) Rod Gap arrestor , (ii) Earth Screen (iii)Surge Absorber
     e) Explain the meaning of terms: fixed charges, running charges and tariff.State the type of tariffs commonly used for agriculture, industry and domestic                           consumers

Electrical Power-II EP-2 6th Sem EEE dec 2015 Diploma PSBTE Paper


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Section a FILL IN THE BLANKS Electrical Power-II DEC 2015 paper

To locate the ground fault of single core cable, usually test is ______ performed.

To locate the ground fault of single core cable, usually test is ______ performed.

MCB stands for ________

MCB stands for Miniature or Mini Circuit Breaker  .

 An isolator is designed to open a circuit under load condition.

 An isolator is designed to open a circuit under load condition.

A fuse element should have ______ melting point.

A fuse element should have ______ melting point.

HRC stands for  _____

HRC stands for  _____

The most commonly used system for the protection of alternator is  _____ protection.

The most commonly used system for the protection of alternator is  _____ protection.

Usually automatic protection is not provided for transformer.

Usually automatic protection is not provided for transformer.

A lightning arrestor is always connected between _ and earth.

A lightning arrestor is always connected between _ and earth.

Ground wire is used to protect transmission line against

Ground wire is used to protect transmission line against .

The ratio of average load to the maximum load is ____

The ratio of average load to the maximum load is ____

Electrical Power-II EP-2 6th Sem EEE DEC 2015 Diploma PSBTE Paper Click Here

Section B :Electrical Power-II EP-2 6th Sem EEE DEC 2015 Diploma Paper

Explain different types of faults in transmission line?

Different types of faults in transmission line

How is the arc extinguished in an air blast Circuit Breaker?

How is the arc extinguished in an air blast circuit breaker

What are the advantages of SF6 circuit breaker?

Advantages of SF6 circuit breaker

Draw a neat sketch of induction type over current relay and label the various parts.

induction type over current relay and  various parts.

 What are the limitations of fuse?

Limitations of fuse

Explain the working of buchholz relay?

Working of buchholz relay

Mention the properties of a good light arrestor?

Properties of a good light arrestor

What do mean by tariff? Explain two part tariff ?

Tariff

Explain two part tariff 

 Electrical Power-II EP-2 6th Sem EEE Dec 2015 Diploma Paper Click Here

 Electrical Power-II EP-2 6th Sem EEE dec 2015 Diploma Paper


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https://www.youtube.com/watch?v=UHX6f8TIvX8https://www.youtube.com/watch?v=M_RR6LVICp0https://www.youtube.com/watch?v=mV41CMWonN4https://www.youtube.com/watch?v=s0LVPE0Q3LE&list=PLA9Q9SDZ781WXNAWit379A4CRLMvjGiUw&index=14&t=0s

Section c Electrical Power-II EP-2 6th Sem EEE DEC 2015 Diploma Paper

What is the Basic principal of Circuit Breaker?

What is the basic principal of circuit breaker

 

Eneat diagram the construction and operation of SF6 Circuit

construction and operation of SF6 Circuit breaker

What is earthing? What is its purpose? Explain system earthing and equipment

Earthing  its purpose

Explain system earthing and equipment

 

Explain how merz-price system of protection can be applied for the protection of large 3 phase alternator.

merz-price system of protection 

 

What is the purpose of inserting a resistance between horn gap arrestor and line?

Purpose of inserting a resistance between horn gap arrestor and line

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