Dnyaneshwar Vidyapeeth (Trust)

Assignment 3

 

ASSIGNMENT SWITCH GEAR AND PROTECTION

SUB –CODE- (ELE-D540)                COURSE:  TECH QUIC DIPLOMA        SESSION - SUMMER

                                                                        BRANCH – Electrical

 

 

Q.1)  Solve.

  1. What is switchgear? What is its function?   
  2. Write a note on testing of relays in substation.  
  3. What is the function of circuit breaker?
  4. State the advantages, disadvantages and applications of HRC fuse.   
  5. Give comparison between minimum oil circuit breaker and bulk oil

circuit breaker.

  1. Explain the construction and working of vacuum circuit breaker.
  2. Why SF 6 is used in the circuit breaker?

 

Q.2)  Solve.

 

  1. Compare air blast circuit breaker & air break circuit breaker.
  2. Compare vacuum type and SF6 type circuit breaker.
  3. What are the important parts in a substitution?
  4. Write a note on maintenance of substation in detail.
  5. Why are relays important in substation?
  6. What is energy audit? What is the importance of the same?
  7. What is energy management? Why is it important to study?

 

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