Subject Code: EE2251
Subject Name: Electronics Machine - 1
Semester: Fourth
Department: EEE
Type: EE2251 Question Bank
EE- 2251 Electronics Machine - 1 Syllabus
UNIT I INTRODUCTION 6
Electrical machine types – Magnetic circuits – Inductance – Statically and Dynamically induced EMF - Torque – Hysteresis- Core losses - AC operation of magnetic circuits.
UNIT II TRANSFORMERS 10
Construction – principle of operation – equivalent circuit – losses – testing – efficiency and voltage regulation – auto transformer – three phase connections – parallel operation of transformers – tap changing.
UNIT III ELECTROMECHANICAL ENERGY CONVERSION 9
Energy in magnetic systems – field energy, coenergy and mechanical force – singly and multiply excited systems.
UNIT IV BASIC CONCEPTS IN ROTATING MACHINES 9
Generated voltages in ac and dc machines, mmf of distributed windings – magnetic fields in rotating machines – rotating mmf waves – torque in ac and dc machines.
UNIT V DC MACHINES 11
Construction – EMF and torque – circuit model – armature reaction – commutation – methods of excitation – characteristics of generators – characteristics of motors – starting and speed control – testing and efficiency – parallel operation.
Subject Name: Electronics Machine - 1
Semester: Fourth
Department: EEE
Type: EE2251 Question Bank
EE- 2251 Electronics Machine - 1 Syllabus
UNIT I INTRODUCTION 6
Electrical machine types – Magnetic circuits – Inductance – Statically and Dynamically induced EMF - Torque – Hysteresis- Core losses - AC operation of magnetic circuits.
UNIT II TRANSFORMERS 10
Construction – principle of operation – equivalent circuit – losses – testing – efficiency and voltage regulation – auto transformer – three phase connections – parallel operation of transformers – tap changing.
UNIT III ELECTROMECHANICAL ENERGY CONVERSION 9
Energy in magnetic systems – field energy, coenergy and mechanical force – singly and multiply excited systems.
UNIT IV BASIC CONCEPTS IN ROTATING MACHINES 9
Generated voltages in ac and dc machines, mmf of distributed windings – magnetic fields in rotating machines – rotating mmf waves – torque in ac and dc machines.
UNIT V DC MACHINES 11
Construction – EMF and torque – circuit model – armature reaction – commutation – methods of excitation – characteristics of generators – characteristics of motors – starting and speed control – testing and efficiency – parallel operation.
{ 0 comments... read them below or add one }
Post a Comment