JNTUH B.Tech 2nd year Electrical Machines – I gives you detail information about Electrical Machines – I Engineering R13 year subject. It will be help full you to understand you complete curriculum of the year.<\/p>\n
Objective<\/strong><\/p>\n Electrical machines course is one of the important courses of the Electrical discipline. In this course the different UNIT \u2013 I<\/strong><\/p>\n Electromechanical Energy Conversion: Electromechanical Energy conversion \u2013 forces and torque in magnetic\u00a0field systems \u2013 energy balance \u2013 energy and force in a singly excited magnetic field system, determination of\u00a0magnetic force – co-energy \u2013 multi excited magnetic field systems.<\/p>\n UNIT \u2013 II<\/strong><\/p>\n D.C. Generators & Armature Reaction : D.C. Generators \u2013 Principle of operation \u2013 Action of commutator \u2013\u00a0constructional features \u2013 armature windings \u2013 lap and wave windings \u2013 simplex and multiplex windings \u2013 use of\u00a0laminated armature \u2013 E. M.F Equation \u2013 Problems\u00a0Armature reaction \u2013 Cross magnetizing and de-magnetizing AT\/pole \u2013 compensating winding \u2013 commutation \u2013\u00a0reactance voltage \u2013 methods of improving commutation.<\/p>\n UNIT \u2013 III<\/strong><\/p>\n Types of D.C Generators & Load Characteristics : Methods of Excitation \u2013 separately excited and self excited\u00a0generators \u2013 build-up of E.M.F – critical field resistance and critical speed – causes for failure to self excite and\u00a0remedial measures. Load characteristics of shunt, series and compound generators \u2013 parallel operation of d.c\u00a0series generators \u2013 use of equalizer bar and cross connection of field windings \u2013 load sharing.<\/p>\n
\ntypes of DC generators and motors which are widely used in industry are covered and their performance aspects
\nwill be studied.<\/p>\n