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Total No. of Questions : 08
Total No. of Pages : 01
M.Tech.(EE) (2013 Batch E-II) (Sem.-2)
SPECIAL ELECTRIC MACHINES
Subject Code : MTEE-205A
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M.Code: 71363
Time: 3 Hrs.
Max. Marks : 100
INSTRUCTIONS TO CANDIDATES :
- Attempt any FIVE questions out of EIGHT questions.
- Each question carries TWENTY marks.
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- a) Explain the construction and working principle of hysteresis motor.
b) Discuss the principle of operation of AC servo motor. - Explain the principle of operation and constructional features of different types of Synchronous Reluctance Motor.
- Describe the Hysteresis type and PWM type current regulator for one phase of a Switched Reluctance Motor with relevant circuit diagram.
- a) Explain the principle of operation of a linear induction motor draw its characteristics. State its important applications.
b) Explain the electromagnetic levitation. - a) Distinguish between self-control and vector control permanent magnet synchronous motor.
b) Explain the merits and demerits of DC linear motor. - a) Explain the operation of square wave permanent magnet brushless motor drive with neat diagram.
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b) Explain the construction and operation of switched reluctance motor with neat diagram. - A 100W, 2pole, 50Hz, 230V single phase series motor with salient poles has a total resistance of 15O leakage resistance of 40O, mutual resistance of 80O (in d-axis) and 50O (in q-axis). If the stray power losses are 20 watts, calculate the current, speed and power factor of the motor at full-load.
- a) Explain the different types of linear synchronous motor and mention its applications.
b) What is stepping angle? A VR Stepper Motor has 8 poles in the stator and they have five teeth in each pole. If the rotor has 50 teeth, calculate the step angle and resolution.
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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 M.Tech 2nd Semester Last 10 Years 2010-2020 Previous Question Papers|| Punjab Technical University
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