Notice

   For 4th Sem Electrical

Syllabus of mid Sem march 16

Subject: signal and system

 Unit 1:Basic definitions, Classification of signals and systems. Signal operations and properties. Basic continuous time signals, signal sampling and quantization, discretization of continuous time signals, discrete time signals. Basic system properties, Representation of digital signals. Case study of different signals form communication and biomedical field .
 Unit 4: Representation of periodic functions, Fourier series, Frequency spectrum of aperiodic signals, Fourier Transform, Relation between Laplace Transform and Fourier Transform and its properties.

 Unit 5:The z-Transform, Convergence of z-Transform, Basic z-Transform, Properties of z-Transform, Inverse z-Transform and Solving difference equation using z-Transform.

Prof. A.K.Giri

	Question bank  (4Th semester)
	A C Machines [ subject code : 2140906]
1	Explain the construction and working principle of  Polyphase Induction Motor
2	Explain OC & SC test of  Polyphase Induction Motor
3	Explain the losses & power stage of  Polyphase Induction Motor
4	Draw the phasor diagram and equivalent circuit of a 3-phase induction motor.
5	Explain the importance of Circle diagram of Polyphase Induction Motor.
6	Explain the need of starter for AC motor. Draw and Explain the circuit diagram of any one Starter for 3-Phase Induction Motor.
7	Explain the effect of unbalance voltage and variation in frequency on the performance of 3-Phase Induction Motor.
8	Explain the Rotating magnetic field in three phase induction motor.
9	State the difference between DOL starter and Star-delta starter.
10	Explain how by inserting resistance in the rotor circuit of a slipring induction motor the starting current of the motor can be limited.
11	Explain the phenomenon of cogging and crawling in induction motor.
12	State different methods of speed control of 3- Induction motor. Explain an one method of speed control of 3-   slip ring induction motor from the rotorside.
13	Explain performance of 3-phase I.M. for change in supply frequency with constant supply voltage.
14	Derive the equation of  torque of three phase Induction Motor at starting & under running condition.
15	Derive the condition of max. torque of three phase Induction Motor at starting & under running condition.
16	Draw & explain power angle characteristics of synchronous machine.
17	Derive the equation of synchronizing power & condition for maximum power.
18	What are the different excitation systems used in synchronous machine
19	What is  SCR in synchronou machine ?, explain in detail.
20	Compare the methods for finding voltage regulation of Alternator.
21	Explain the different effect for failour in synchronizing the alternators.
22	Explain the different methods for synchronizing the alternators.
23	Explain the slip test for finding voltage regulation of three phase alternator by measuring direct axis & quadrater axis reactance.
24	List different methods for finding voltage regulation of an alternator and explain any one method.
25	State the conditions necessary for paralleling alternators. Explain one dark and two bright lamp method with necessary electrical circuit diagram.
26	Explain concept of pitch factor and distribution factor in case of an alternator. How these values change with harmonics.
27	What is armature reaction? Explain the effect of armature reaction at different power factor on the terminal voltage of an alternator.
28	Derive emf equation of alternator. Explain distribution factor with effect of harmonics.
29	Explain the construction and working principle of synchronous Generator.
30	Explain the direct load test for finding voltage regulation of three phase alternator .

MID-SEMESTER TEST SYLLABUS for 

SUBJECT:A C Machines (4Th semester) [ subject code : 2140906]

	Content
1	Poly-phase Induction Motor: Construction, Types of motor, Working principle, Rotating magnetic field. Operating parameters at different load, No-load & blocked rotor test, Equivalent circuit, Phasor diagram, Circle diagram, Efficiency and slip scale with the help of circle diagram, Effect of rotor resistance on performance of motor, Double cage motor and its equivalent circuit, Introduction to machine dynamics. Starters of poly-phase induction motor including soft starter, Methods of speed control of 3- phase motor, Schematic diagram and advantages of Variable Voltage Variable Frequency drive. Electrical transients in induction machine, Magnetic levitation : Principle, advantages and application of linear induction motor. Effect of harmonics, Harmonic torques, Cogging & Crawling, Effect of unbalanced voltages on performance of motor. Performance of motor with variable voltage and frequency. Testing of induction motor as per IS, Energy efficient motors.
2	Synchronous Machines: Construction, Types, Applications, Working principle. Equation of induced emf with and without harmonics in MMF, pitch factor and distribution factor, MMF of distributed windings, Torque equation, Machine efficiency, Armature reaction and its compensation, Short circuit ratio, Effect of change in excitation, Effect of change in torque and speed, Voltage regulation, Determination of voltage regulation by Synchronous impedance method, MMF method, ZPF method and AIEE method, Synchronization : Importance and Methods of synchronization. Operating characteristic, Load angle and Power flow equations, Capability curves, Two reaction model of Salient pole machines, Parallel operation, Load sharing between parallel connected generators, Effect of unequal voltages & unequal percentage impedance, Governor characteristics, Introduction to single phase generators, Slip test for measurement of direct axis and quadrature axis reactance for salient pole machine, Sudden short circuit of Synchronous machine, Hunting of synchronous machines and its prevention

Syllabus SUB: Field Theory (4th sem ) for March/April -2016

 Chapter : 1 Vector Analysis
 Chapter : 2  Coulomb's law and Electric field Intensity.
 Chapter : 3  Electric Flux Density and Divergence.
Chapter :  8  The Steady Magnetic Field
Chapter : 11 Transmission line
Chapter : 12 Effect of Electromagnetics Field
 

QUESTION BANK OF UET-2160907

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PROF .P.K.SHAH/ PROF.U.P.CHUDASAMA

APS--II question bank

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Prof. P.A.Upadhyay

8 th semester syllabus for EPU for mid sem exam March/April 2016

   chapter I      Electrical drives
    chapter II    Electrical traction

QUESTION BANK OF HVE 2160904-6 TH SEM

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PLESE REFER LAST 4 YEARS REGULAR QUESTION PAPERS OF GTU ALSO,  FOR REFERANCE...

MSE SYLLABUS FOR 6 TH SEM-HVE-2160904

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