Page 7 - Basic Electrical Engineering
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3.3.1 Resonance in AC Series Circuit
3.3.2 Resonance in AC Parallel Circuits
3.4 Review Questions
4. Three-phase System
4.1 Introduction
4.2 Advantages of Three-phase Systems
4.3 Generation of Three-phase Voltages
4.4 Terms Used in Three-phase Systems and Circuits
4.5 Three-phase Winding Connections
4.5.1 Star Connection
4.5.2 Delta Connection
4.5.3 Relationship of Line and Phase Voltages, and Currents in a Star-connected System
4.5.4 Relationship of Line and Phase Voltages and Currents in a Delta-connected System
4.6 Active and Reactive Power
4.7 Comparison Between Star Connection and Delta Connection
4.8 Measurement of Power in Three-phase Circuits
4.8.1 One-Wattmeter Method
4.8.2 Two-Wattmeter Method
4.8.3 Three-Wattmeter Method
4.9 Review Questions
5. Electromagnetism and Magnetic Circuits
5.1 Magnets and Magnetic Fields
5.1.1 Field Around a Current-carrying Conductor
5.1.2 Magnetic Flux Density
5.1.3 Magnetic Field Strength
