Types of D.C Generators:Methods of Excitation – separately excited and self excited generators – build-up of E.M.F – critical field resistance and critical speed – causes for failure to self excite and remedial measures. Generator:Armature reaction – Cross magnetizing and de-magnetizing AT/pole – compensating winding – commutation – reactance voltage – methods of improving commutation. M.F Equation – ProblemsĪrmature reaction in D.C.
Generators – Principle of operation – Action of commutator – constructional features – armature windings – lap and wave windings – simplex and multiplex windings – use of laminated armature – E. Generators – Construction & Operation:D.C. Click here to check all the JNTU Syllabus booksĮlectromechanical Energy Conversion:Electromechanical Energy conversion – forces and torque in magnetic field systems – energy balance – energy and force in a singly excited magnetic field system, determination of magnetic force – co-energy – multi excited magnetic field systems.ĭ.C. Note :- These notes are according to the r09 Syllabus book of JNTUH.In R13 & R15,8-units of R09 syllabus are combined into 5-units in r13 syllabus. Unit 4 Link:Unit 4 Notes Unit 5 Link:Unit 5 Notes Unit 5 Link – Unit 5 Notes Old Material Links Electrical Machines 1 Pdf Notes – EM 1 Pdf Notes Electrical Machines 1 Pdf Notes – EM 1 Pdf Notes Latest Material Links
