1. 3 Phase Circuits - Basic Concepts

In this 28 mins Video Lesson

Generation of 3 Phase Power, Phase Sequence, Sum of Generated Voltages in 3 Phase System , Need for 3 Phase Power, and other topics.

Generation of 3 Phase Power, Phase Sequence, Sum of Generated Voltages in 3 Phase System , Need for 3 Phase Power, and other topics.

2. 3 Phase Circuits - Terminology

In this 13 mins Video Lesson

3 Phase Connections, Star / Wye Connection, Delta / Mesh Connection, Balanced Load, Line / Line - Line Voltage, Line-Neutral Voltage, Phase Voltage, Line Current, Phase Current, and other topics.

3 Phase Connections, Star / Wye Connection, Delta / Mesh Connection, Balanced Load, Line / Line - Line Voltage, Line-Neutral Voltage, Phase Voltage, Line Current, Phase Current, and other topics.

3. 3 Phase Star-Star System

In this 42 mins Video Lesson

A Wye-Wye 3 Phase System, Phase Voltages in Star System, Phase and Line Currents in Wye System, Line Voltages in Wye System, Relationship between Phase and Line Quantities (Phasor Diagram) in Wye System, One Line Diagram in Balanced System, Power in Wye System, and other topics.

A Wye-Wye 3 Phase System, Phase Voltages in Star System, Phase and Line Currents in Wye System, Line Voltages in Wye System, Relationship between Phase and Line Quantities (Phasor Diagram) in Wye System, One Line Diagram in Balanced System, Power in Wye System, and other topics.

4. 3 Phase Delta-Delta System

In this 22 mins Video Lesson

A Delta-Delta 3 phase System, Phase and Line Voltages in Delta System, Phase Currents in Delta System, Line Currents in Delta System, Relationship between Line and Phase Quantities (Phasor Diagram) in Delta System, Power in Delta System, and other topics.

A Delta-Delta 3 phase System, Phase and Line Voltages in Delta System, Phase Currents in Delta System, Line Currents in Delta System, Relationship between Line and Phase Quantities (Phasor Diagram) in Delta System, Power in Delta System, and other topics.

5. 3 Phase Transformations and Typical Problems

In this 26 mins Video Lesson

Delta - Wye Load Transformations, Delta - Wye Source Transformations, Typical Problems on 3 - Phase Systems, and other topics.

Delta - Wye Load Transformations, Delta - Wye Source Transformations, Typical Problems on 3 - Phase Systems, and other topics.

6. Measuring Power in 3 Phase Systems - 2 Wattmeter Method

In this 28 mins Video Lesson

Wattmeter - How it Works, 3 Phase Power using 2 Wattmeter Method, Power Factor using 2 Wattmeter Method, and other topics.

Wattmeter - How it Works, 3 Phase Power using 2 Wattmeter Method, Power Factor using 2 Wattmeter Method, and other topics.

3 Phase Circuits
(2.91 Mb)

Three phase voltage and current generation, star and delta connections (balanced load only), relationship between phase and line currents and voltages, Phasor diagrams, Basic principle of wattmeter, measurement of power by two wattmeter method.