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EE8301 ELECTRICAL MACHINES – I Lecture Notes Download EE8301 ELECTRICAL MACHINES – I Lecture Notes Download
Department  Electrical and Electronics Engineering
Year 2nd year
Semester 3rd Semester
University Anna University
Regulation  R2017
Subject Code EE8301
Subject Name ELECTRICAL MACHINES – I
Download File EE8301 ELECTRICAL MACHINES – I Lecture Notes, Books, Important 2 Marks Question and Answers, 16 Mark Question with Answers, Syllabus & Question Bank

 

 

EE8301 ELECTRICAL MACHINES – I Syllabus

UNIT I MAG NETIC CIRCUITS AND MAGNETIC MATERIALS
Magnetic circuits –Laws governing magnetic circuits – Flux linkage, Inductance and energy – Statically and Dynamically induced EMF – Torque – Properties of magnetic materials, Hysteresis and Eddy Current losses – AC excitation, introduction to permanent magnets- Transformer as a magnetically coupled circuit.

UNIT II TRANSFORMERS
Construction – principle of operation – equivalent circuit parameters – phasor diagrams, losses – testing – efficiency and voltage regulation-all day efficiency-Sumpner’s test, per unit representation – inrush current – three phase transformers-connections – Scott Connection – Phasing of transformer– parallel operation of three phase transformers-auto transformer – tap changing transformers- tertiary winding.

UNIT III ELECTROMECHANICAL ENERGY CONVERSION AND CONCEPTS IN ROTATING MACHINES Energy in magnetic system – Field energy and co energy-force and torque equations – singly and multiply excited magnetic field systems-mmf of distributed windings – Winding Inductances-, magnetic fields in rotating machines – rotating mmf waves – magnetic saturation and leakage fluxes.

UNIT IV DC GENERATORS
Construction and components of DC Machine – Principle of operation – Lap and wave windings-EMF equations– circuit model – armature reaction –methods of excitation- commutation – interpoles compensating winding –characteristics of DC generators.

UNIT V DC MOTORS
Principle and operations – types of DC Motors – Speed Torque Characteristics of DC Motors- starting and speed control of DC motors –Plugging, dynamic and regenerative braking- testing and efficiency – Retardation test- Swinburne’s test and Hopkinson’s test – Permanent Magnet DC (PMDC)motors-applications of DC Motor

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ELECTRICAL MACHINES – I Lecture Notes Download

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