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AC Motor Theory (A8011) — AC Motor Theory (A8011)
In InteractivePro1

This lesson shows and explains how to measure winding insulation resistance and winding resistance. The lesson also describes the major components of AC motors and explains the theory behind permanent magnet motors, three-phase motors, and induction motors. <br /><br />

AC Characteristics (A8202) — AC Characteristics (A8202)
In InteractivePro1

This lesson covers the basic characteristics of AC circuits including the relationship between voltage and current flow in an AC circuit, the way in which AC voltage is induced, and the cause and effect of inductance and capacitance in AC circuits. The lesson shows and explains how to use a sine wave to interpret changes in AC voltage over time, how to determine the frequency of AC voltage, and how to recognize the effects of inductance and capacitance in AC circuits. <br /><br />

Three-Phase AC Circuits (A8203) — Three-Phase AC Circuits (A8203)
In InteractivePro3

This lesson shows how three-phase AC voltage is generated and describes different characteristics of three-phase voltage. The lesson introduces two types of winding electrical connections with graphic demonstrations of their effect on voltage and current. Also presented are transformers and the way in which they affect voltage and current. <br /><br />

Semiconductors and Diodes (A8204) — Semiconductors and Diodes (A8204)
In InteractivePro3

This lesson presents the physical and electrical properties of different semiconductor material types and how current flows through each type. The lesson shows codes and symbols for diodes and how and zener diodes are also explained. <br /><br />

Rectifiers and Filters (A8205) — Rectifiers and Filters (A8205)
In InteractivePro3

This lesson presents the basic operating theories of electronic power supplies, half-wave rectifiers, full-wave rectifiers, full-wave bridge rectifiers, capacitive input filters, and inductive input filters. The lesson shows how to calculate the expected DC output voltage for a half-wave rectifier, full-wave rectifier, and full-wave bridge rectifier. <br /><br />

Power Devices (A8206) — Power Devices (A8206)
In InteractivePro3

This lesson describes the operating principles and function of transistors, SCR??S, and triacs and shows how current flows through each device. Schematic symbols for transistors, SCR??S, and triacs are also shown and explained. <br /><br />

Electrical Schematic Symbols – Logic and Output Devices — Electrical Schematic Symbols – Logic and Output Devices
In iKnow

This is the third lesson in the iKNOW Electrical Print Reading Library. This lesson defines the function of logic and output elements of a control circuit and presents the symbols for various logic and output devices. <br /><br />

Single Line Electrical Diagrams — Single Line Electrical Diagrams
In iKnow

This is the seventh lesson in the iKNOW Electrical Print Reading Library. This lesson presents information regarding how to identify loads, equipment, and isolation breakers on a single-line electrical diagram. <br /><br />

Electrical Schematic Symbols- Input Devices — Electrical Schematic Symbols- Input Devices
In iKnow

This is the second lesson in the iKNOW Electrical Print Reading Library. The lesson presents the symbols for various manually and process actuated input devices and how they are represented on an electrical schematic. <br /><br />

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