University Questions with Answers (Long Answered Questions)

University Questions with Answers (Long Answered Questions)

(Regulation 2008)

Dec.-10      

Q. 1   Discuss about the parallel operation of two         alternators with identical speed/load characteristics. (Section 3.13)           [8]

Q. 2 Elaborate the discussion on capability curve with its boundaries of synchronous machine. (Section 3.19)                [8]

May-11     

Q. 3   Explain the determination of direct and quadrature axis synchronous reactance using the slip test. (Section 3.11)            [8]

Dec.-ll

Q. 4 Explain the determination of direct and quadrature axis synchronous reactance using the slip test. (Section 3.11)  [8]

Q. 5 For a salient pole machine, derive the expression for the power developed as a function of load angle. (Section 3.12)        [8]

May-12

Q. 6 Explain the procedure of connecting an alternator to an infinite bus bar giving the relevant circuit diagram. (Section 3.3)        [8]

Q.7 What is synchronising power ? Derive an expression for the synchronising power between the two alternators connected in parallel. (Section 3.5) [8]

Dec.-12

Q. 8 State and explain the conditions for parallel operation of alternators. (Section 3.1)       [8]

May-13

Q. 9 Explain the determination of direct and quadrature axis synchronous reactance using the slip test. (Section 3.11)  [8]

May-14

Q. 10 Explain the determination of direct and quadrature axis synchronous reactance using the slip test. (Section 3.11)  [8]

(Regulation 2013)

Dec.-17

Q. 11 Describe how the direct and quadrature-axis reactances of a salient-pole synchronous machine can be estimated by means of slip test. (Section 3.11)        [7]

Q. 12 What is meant by Synchronizing 1 State the conditions for paralleling alternator with infinite busbars. (Refer section 3.1)  [5]