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Electrical Theory Training

Electrical Skills

This comprehensive interactive multimedia training program consists of seven individual lessons that train participants in the principles of AC/DC and solid-state theories. Digital electronic theory is also introduced.

Audience:
This course is ideal for electricians, electronic technicians, and multi-craft personnel in process and manufacturing facilities who seek to deepen their understanding of both analog and digital electronics. It is also ideal for aspiring technicians and engineers aiming to build a solid foundation in electrical systems. The course covers essential topics such as basic electrical theory, Ohm’s Law, series circuits, logic gates, flip-flops, truth tables, the binary number system, and the application of Boolean algebra in digital systems. The program offers a balanced blend of theoretical knowledge and practical skills in managing inputs and outputs, as well as troubleshooting analog and digital signals within complex electrical systems.

Number of Courses: 7

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Course 1 – Ohm’s Law

Prerequisites: This lesson is designed so that no prior knowledge is required.

Description: This lesson introduces basic electrical theory, detailing the operation of simple DC electrical circuits. It examines how voltage, current, and resistance interact in series circuits, parallel circuits, and series-parallel circuits. The lesson emphasizes applying Ohm’s Law to calculate these parameters, facilitating a comprehensive understanding of electrical systems and the flow of electricity from positive to negative terminals.

Objectives:

  • Define electricity & its fundamental principles.
  • Explain the operation of simple electrical circuits, including series circuits.
  • Apply Ohm’s Law to calculate voltage, current, and resistance in any kind of circuit.

Course 2 – AC Characteristics

Prerequisites: This lesson is designed for participants familiar with Ohm’s Law.

Description: This lesson delves into basic electrical theory by examining the characteristics of AC circuits. It explores the relationship between voltage and current flow, the induction of AC voltage, and the roles of inductance and capacitance. Utilizing sine waves, the lesson demonstrates how to interpret changes in AC voltage over time and determine its frequency. Additionally, it addresses the impact of inductance and capacitance on analog signals within electrical systems.

Objectives:

  • Identify the basic operating characteristics of AC voltage
  • Utilize sine waves to determine AC voltage frequency.
  • Explain magnetic attraction, repulsion, and flux principles.
  • Define lines of flux and flux density
  • Describe AC voltage induction and capacitor operation in AC circuits.
  • Describe how AC voltage is induced
  • Describe how a capacitor operates in an AC circuit
  • Analyze the impact of capacitance on voltage-current relationships in analog signals.
  • Interpret AC voltage over time

Course 3 – Three-phase AC Circuits

Prerequisites: This lesson is designed for participants familiar with AC circuits and AC voltage. A basic understanding of how to interpret changes in AC voltage over time is also required.

Description: This lesson explores the generation and characteristics of three-phase AC voltage, a fundamental aspect of electrical systems. It introduces wye and delta connections, illustrating their effects on voltage and current through graphical demonstrations. The lesson also covers transformers, explaining their influence on voltage and current, and discusses the transition from analog signals to digital signals in modern digital systems.

Objectives:

  • Explain voltage induction in three-phase systems.
  • Interpret sine wave representations of three-phase voltage variations.
  • Describe the effect of three- and four-wire wye connections have on the relationships between phase and line voltage and current in a three-phase system.
  • Describe the effect of a delta connection on the relationship between phase and line voltage and current in a three-phase system.
  • Identify the basic transformer components and describe their functions.
  • Explain what determines how much voltage a transformer produces.
  • Determine factors influencing transformer voltage output and current transition between primary and secondary windings.

Course 4 – Semiconductors and Diodes

Prerequisites: This lesson is designed for participants familiar with AC/DC theory, electrical safety, electrical print reading, electrical connections, and the proper use of electrical test instruments.

Description: This lesson explores semiconductor materials, focusing on their physical and electrical properties and current flow dynamics. It covers diodes, including their codes, symbols, and interpretation within integrated circuits. The lesson delves into analog electronics, discussing operating characteristic curves and the function of zener diodes in analog signals processing.

Objectives:

  • Describe the physical and electrical properties and current flow of N-type and P-type semiconductor material.
  • Understand PN junction theory.
  • Identify & describe diode codes, symbols, and interpret related schematics.
  • Interpret schematic drawings and manufacturer’s markings for diodes.
  • Test unmarked diodes to identify the anode and cathode.
  • Explain how the operating characteristic curve represents diode operation in terms of the relationship between current and voltage.
  • Explain how the operating characteristic curve indicates forward operating current in an AC circuit.
  • Describe how zener diodes operate and how they are used to regulate voltage in a circuit.

Course 5 – Rectifiers and Filters

Prerequisites: This lesson is designed for participants familiar with AC/DC theory, electrical safety, electrical print reading, electrical connections, semiconductors and diodes. The ability to use electrical test instruments is also required.

Description: This lesson examines the principles of analog electronics, focusing on electronic power supplies and various rectifier configurations: half-wave, full-wave, and full-wave bridge rectifiers. It discusses the role of capacitive and inductive input filters in shaping analog signals and guides calculating expected DC output voltages for each rectifier type.

Objectives:

  • Identify and state the function of the major components in an electronic power supply.
  • Explain operations of half-wave, full-wave, and full-wave bridge rectifiers.
  • Calculate the expected DC output voltage and recognize the appropriate output waveform from a half-wave rectifier.
  • Calculate the expected DC output voltage and recognize the output waveform from a full-wave bridge rectifier.
  • Explain the operation of capacitive and inductive input filters.

Course 6 – Power Devices

Prerequisites: This lesson is designed for participants familiar with AC/DC theory, electrical safety, electrical print reading, electrical connections, semiconductors and diodes. The ability to use electrical test instruments is also required.

Description: This lesson delves into power devices within digital electronic circuits, detailing the operating principles of transistors, SCRs, and triacs. It illustrates current flow through these components and explains their schematic symbols, highlighting their roles in digital electronics and digital systems.

Objectives:

  • Describe the switching and amplification functions as well as the three regions of a transistor.
  • Identify the schematic symbols for PNP and NPN transistors and explain how current flows through each type.
  • Explain switching and amplification roles of transistors in digital electronic circuits.
  • Use an ohmmeter to test a transistor.
  • Identify the schematic symbols for SCRs and a triac and explain how they operate.

Course 7 – Introduction to Digital Devices

Prerequisites: This lesson is designed for participants familiar with basic electrical theory, electrical safety, electrical connections, electrical print reading, semiconductors, diodes, and the operating characteristics of transistors, resistors, and other basic circuit components. The ability to properly use electrical/electronic test instruments is also required.

Description: This lesson introduces digital electronics, focusing on how digital electronic circuits process and transmit digital signals. It explains the operation of basic logic gates and the application of the binary number system in representing information. The lesson also covers digital logic concepts, including Boolean algebra, truth tables, and flip-flops, emphasizing their significance in digital systems and the management of inputs and outputs.

Objectives:

  • Describe how digital electronic circuits process information.
  • Explain logic functions, associated truth tables, and Boolean algebra applications.
  • Determine circuit-performed logic functions.
  • Understand integrated circuits and the use of the binary number system in digital systems.
  • Explain how the binary number system is commonly used in digital electronic circuits.