Introduction to T&D Systems

Summary

This 47-minute DVD gives an overview of how transmission and distribution systems deliver power from power plants to customers. It describes the major components of a typical transmission and distribution system, and how electricity flows through these components on its journey from the power plant to the customer.

Training Sessions

Transmission and Distribution System Overview – 5 minutes
States the purpose of a transmission and distribution system. Describes the major components of a transmission and distribution system. Explains how power grids help ensure a continuous flow of power to customers.

Power Plants – 8 minutes
Defines the terms: voltage, current, resistance, and power. States the basic function of a power plant. Describes the general characteristics of a typical power plant.

Switchyards – 10 minutes
States the general function of a switchyard. Describes the major components of a typical switchyard. Describes how the electrical flow path through a switchyard can be altered to isolate certain equipment.

Transmission Lines – 8 minutes
Explains the functions of transmission lines in a typical transmission and distribution system. Describes the major components of transmission lines.

Substations – 9 minutes
Explains the function of a substation. Describes the major components of a typical substation. Describes how the electrical flow path through a substation can be altered to isolate certain equipment.

Distribution – 7 minutes
Explains the function of a distribution system. Describes the major components of a distribution system. Explains how electricity travels through a typical distribution system to reach customers.

Support Materials Available

Student workbook, instructor guide.