Laboratory Manual for Electrical Machines

D.P. Kothari is Director Research, Gaikwad Patil Group of Institution, Nagpur. He obtained his BE (Electrical) in 1967, ME (Power Systems) in 1969 and Ph.D. in 1975 from BITS, Pillani, Rajasthan. From 1969 to 1977, he was involved in teaching and development of several courses at BITS Pillani. Earlier Dr. Kothari served as Vice Chancellor, VIT, Vellore, Director in-charge and Deputy Director (Administration) as well as Head in the Centre of Energy Studies at Indian Institute of Technology, Delhi and as Principal, VRCE, Nagpur. He was visiting professor at the Royal Melbourne Institute of Technology, Melbourne, Australia, during 1982-83 and 1989, for two years. He was also NSF Fellow at Perdue University, USA in 1992. Dr. Kothari, who is a recipient of the most Active Researcher Award, has published and presented 780 research papers in various national as well as international journals, conferences, guided 42 Ph.D scholars and 65 M. Tech students, and authored 42 books in various allied areas. His is the recipient of several prestigious awards during his tenure. B.S. Umre is Associate Professor in Electrical Engineering in the Department of Electrical Engineering at Visvesvaraya National Institute of Technology, Nagpur. He obtained his BE, M. Tech and Ph. D. degree from Nagpur University, Nagpur. He has 28 years of teaching experience in VNIT, Nagpur. His area of interest is in Electrical Machines, Power Systems, Modeling and Simulation, Torsional Oscillation. He has published

Experiments
Experiments 1: To Study the Speed Control of a DC Shunt Motor by (a) varying armature voltage with field current kept constant. (b) varying field current with armature voltage kept constant.
Experiments 2: To Perform Load Test on a DC Shunt Generator.
Experiments 3: To Perform Open Circuit and Short Circuit Test on a Single-Phase Transformer
Experiments 4: To Study (a) the Polarity Markings on Single-Phase Transformer Windings and (b) the Operation of an Autotransformer.
Experiments 5: To Study the Load Test on a Cumulatively Compounded DC Motor.
Experiments 6: To Study the Load Test on a Three-Phase Induction Motor.
Experiments 7: To Determine Voltage Regulation and Efficiency of a Single-Phase Transformer by Direct Loading.
Experiments 8: To Study the Scott-Connection of Transformers (Three-Phase to Two-Phase Conversion).
Experiments 9: To Study the Variation of Speed and Load Test on Schrage Motor.
Experiments 10: To Plot V and Inverted V(?) Curves of a Synchronous Motor
Experiments 11: To Determine the Ratio Xq/Xd for Three-Phase Alternator by using ""Slip Test"".
Experiments 12: To Study the Synchronization of an Alternator with an Infinite Bus by ""Dark Lamp Method"".
Experiments 13: To Determine Potier Reactance of Three-Phase Alternator by ""Zero Power Factor Lagging Saturation Curve"".
Experiments 14: To Determine Negative Sequence and Zero Sequence Reactances of Synchronous Generator.
Experiments 15: To Study the Characteristics of Three-Phase Induction Generator.
Experiments 16: To Determine Direct Axis Subtransient (Xd""), Quadrature Axis Subtransient (Xq"") Reactances of Synchronous Machine.
Experiments 17: Determination of B-H Curve of a Magnetic Material
Experiments 18: To Study and Verify Kirchhoff's Laws Applied to Direct Current Circuits
Experiments 19: To Study R-L-C Series Circuit
Experiments 20: To Study R-L-C Parallel Circuit
Index