📘 BEE

BASIC ELECTRICAL ENGINEERING

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BEE All Units Notes

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BEE Unit 1 DC Circuits

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BEE Unit 2 AC Circuits

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BEE Unit 3 Transformers

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BEE Unit 4 Electrical Machines

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BEE Unit 5 Electrical Installations

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Syllabus Overview

UNIT 1 D C Circuits

D.C. Circuits

  • Electrical circuit elements (R, L and C), voltage and current sources
  • KVL&KCL, analysis of simple circuits with dc excitation
  • Superposition, Thevenin and Norton Theorems
  • Time-domain analysis of first-order RL and RC circuits

UNIT 2 A C Circuits

A.C. Circuits

  • Representation of sinusoidal waveforms, peak and rms values, phasor representation
  • Real power, reactive power, apparent power, power factor
  • Analysis of single-phase ac circuits consisting of R, L, C, RL, RC, RLC combinations (series and parallel)
  • Resonance in series R-L-C circuit
  • Three-phase balanced circuits, voltage and current relations in star and delta connections

UNIT 3 Transformers

Transformers

  • Ideal and practical transformer, equivalent circuit
  • Losses in transformers, regulation and efficiency
  • Auto-transformer and three-phase transformer connections

UNIT 4 Electrical Machines

Electrical Machines

  • Construction and working principle of dc machine, performance characteristics of dc shunt machine
  • Generation of rotating magnetic field
  • Construction and working of a three-phase induction motor, Significance of torque-slip characteristics
  • Single-phase induction motor, Construction and working
  • Construction and working of synchronous generator

UNIT 5 Electrical Installations

Electrical Installations

  • Components of LT Switchgear: Switch Fuse Unit (SFU), MCB, ELCB, MCCB
  • Types of Wires and Cables, Earthing
  • Types of Batteries, Important Characteristics for Batteries
  • Elementary calculations for energy consumption, power factor improvement and battery backup
BASIC ELECTRICAL ENGINEERING Notes