Principle of Energy conversion – Basic magnetic circuit analysis Faradays law of electromagnetic induction – singly and doubly Excited magnetic field systems – Torque production in rotating machines and general analysis of electro mechanical system
DC Generator – constriction, principle of operation, types – emf equation – Characteristics - commutation - Armature reaction
DC motor – principle of operation, types – Torque equation – Electrical & Mechanical characteristics – starting – speed control – Various testing – Braking
Transformers – construction, principle of operation, types – Equivalent circuit - regulation and efficiency – Auto transformerThree phase transformer connection-Scott connection – all day efficiency - Sumpner's test - parallel operation of transformers.