JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Prerequisites

Electrical Machines-I & Electrical Machines-II

Course Objectives:

• To understand the operation of Induction, Synchronous machines and Transformers.
• To study the performance analysis of Induction and Synchronous Machines through various testing methods.
• To analyze the performance of single and 3-phase phase transformer with experiments.

Course Outcomes

After learning the contents of this paper the student must be able to

• Assess the performance of different types of AC machines using different testing methods.
• Analyze the suitability of AC machines and Transformers for real word applications.
• Design the machine models based on the application requirements.

Course Objectives Program Outcomes

PO1 PO2 PO3 PO4 PO5 PO6 PO7 PO8 PO9 PO10 PO11 PO12 To understand the 3 3 3 1 1 3 2 3 2 1 3 1 operation of Induction, Synchronous machines and Transformers To study the 3 3 3 1 1 3 2 3 1 2 3 1 performance analysis of Induction and Synchronous Machines through various testing methods To analyse the 3 3 3 2 1 2 1 3 1 1 3 1 performance of single and 3-phase phase transformer with experiments

Course Outcomes Program Outcomes

PO1 PO2 PO3 PO4 PO5 PO6 PO7 PO8 PO9 PO10 PO11 PO12 Assess the 3 3 3 2 1 3 2 1 1 1 3 2 performance of different types of AC machines using different testing methods Analyse the suitability 3 3 3 1 3 2 2 2 1 1 1 3 of AC machines and Transformers for real word applications Design the machine 3 3 3 2 1 3 2 2 1 2 1 3 models based on the application requirements

The following experiments are required to be conducted as compulsory experiments:

• 1. Sumpner’s test on a pair of single-phase transformers
• 2. No-load & Blocked rotor tests on three phase Induction motor
• 3. Regulation of a three –phase alternator by synchronous impedance & m.m.f. methods
• 4. ‘V’ and ‘Inverted V’ curves of a three—phase synchronous motor.
• 5. Equivalent Circuit of a single-phase induction motor
• 6. Determination of Xd and Xq of a salient pole synchronous machine
• 7. Load test on three phase Induction Motor
• 8. Regulation of three-phase alternator by Z.P.F. and A.S.A methods In addition to the above experiments, at least any two of the following experiments are required to be conducted from the following list:
• 1. Separation of core losses of a single-phase transformer
• 2. Efficiency of a three-phase alternator
• 3. Parallel operation of Single-phase Transformers
• 4. Heat run test on a bank of 3 Nos. of single-phase Delta connected transformers
• 5. Measurement of sequence impedance of a three-phase alternator.
• 6. Vector grouping of Three Transformer
• 7. Scott Connection of transformer

TEXT BOOKS:

• 1. P. S. Bimbhra, “Electrical Machinery”, Khanna Publishers, 2011.
• 2. I.J. Nagrath and D. P. Kothari, “Electric Machines”, McGraw Hill Education, 2010.

REFERENCE BOOKS:

• 1. Prithwiraj Purkait, Indrayudh Bandyopadhyay, “Electrical Machines”, Oxford, 2017.
• 2. M. G. Say, “Performance and design of AC machines”, CBS Publishers, 2002.
• 3. A. E. Fitzgerald and C. Kingsley, "Electric Machinery”, New York, McGraw Hill Education, 2013.
• 4. A. E. Clayton and N. N. Hancock, “Performance and design of DC machines”, CBS Publishers, 2004.