BE8254 – NOTES & QP
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| SEMESTER QP | CLICK HERE |
BE8254 – SYLLABUS
UNIT I AC CIRCUITS AND POWER SYSTEMS
Three phase power supply — Star connection — Delta connection — Balanced and Unbalanced Loads- Power equation — Star Delta Conversion — Three Phase Power Measurement — Transmission & Distribution of electrical energy — Over head Vs Underground system — Protection of power system — types of tariff — power factor improvement
UNIT II TRANSFORMER
Introduction — Ideal Transformer — Accounting For Finite Permeability And Core Loss — Circuit Model Of Transformer — Per Unit System — Determination Of Parameters Of Circuit Model Of Transformer — Voltage Regulation — Name Plate Rating — Efficiency — Three Phase Transformers — Auto Transformers
UNIT III DC MACHINES
Introduction — Constructional Features– Motoring and generation principle — Emf And Torque equation — Circuit Model — Methods of Excitation and magnetisation characteristics — Starting and Speed Control — Universal Motor
UNIT IV AC MACHINES
Principle of operation of three-phase induction motors — Construction –Types — Equivalent circuit, Single phase Induction motors -Construction– Types–starting and speed control methods. Alternator- working principle–Equation of induced EMF — Voltage regulation, Synchronous motors- working principle-starting methods — Torque equation — Stepper Motors — Brushless DC Motors
UNIT V MEASUREMENT AND INSTRUMENTATION
Type of Electrical and electronic instruments — Classification- Types of indicating Instruments — Principles of Electrical Instruments –Multimeters, Oscilloscopes- Static and Dynamic Characteristics of Measurement — Errors in Measurement — Transducers — Classification of Transducers: Resistive, Inductive, Capacitive, Thermoelectric, piezoelectric, photoelectric, Hall effect and Mechanical