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EM-I Complete pdf notes(material 2)
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Unit-1:
Introduction,EMF in Electromechanical Systems , Force and Torque Calculation from Energy and Coenergy,EMF in Electromechanical Systems ,Force and Torque on a Conductor,Model of Electromechanical Systems.
Unit-2:
DC GENERATOR,Working principle,Nature of induced elf,Construction of DC machines,Parts of a Dc Generator,Armature,Armature winding,Field winding.
Unit-3:
TYPES OF DC GENERATORS,Permanent Magnet DC Generator,Separately Excited DC Generator ,Self-excited DC Generators,Series Wound Generator ,Shunt Wound DC Generators .
Unit-4:
DC MOTOR,Working principle,Direction of rotation of motor,Significance of Back emf,Voltage equation of dc motor,Conduction for maximum powers.
Unit-5:
TESTING OF DC MACHINES,Introduction , Major losses ,Procedure,Loading the machines,Calculation of efficiency,Maximum efficiency for motor mode.Maximum efficiency for Generation mode.
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