ETL109 Direct Current Theory 3 Credits
This course is designed to provide a solid foundation in the field of electricity and electronics by introducing students to direct current fundamentals. Topics such as atomic structure, conductors and insulators, electron current flow, DC sources of electricity, voltage, current, and resistance, series, parallel, combination circuits, Ohm’s Law, and Kirchoff’s Law will be covered in detail.
Pre/Co-requisite: MAT114.
ETL110 Alternating Current Theory 3 Credits
This course is a continuation of DC theory, and is designed to introduce students to alternating current theory and its applications. Topics such as sine wave, capacitors, inductors, transformers, reactive circuit analysis (RLC), meters, magnetism, conductors, and insulators.
Pre/Co-requisite: ETL109.
ETL113 Direct Current Theory 3 Credits
This theory/lab course is designed to provide a foundation in the fields of electricity and electronics by introducing students to direct current fundamentals. Topics such as engineering notation, voltage, current, resistance, power, electrical components, Ohm's Law, and circuit theorems will be covered in detail. Students will build, test, measure, calculate, and troubleshoot direct current electrical circuits in series, parallel, and combination configurations. Circuit analysis, along with the use of the scientific calculator, will be stressed throughout the course. The lab component of the course is designed to reinforce the theory by providing hands-on applications combined with computer simulated lab experiments. Electronic test and measure equipment such as digital multi-meters (DMM), variable DC power supplies, and bread boards will be used throughout the course.
Pre/Co-requisite: MAT114.
ETL114 Alternating Current Theory 3 Credits
This theory/lab course is designed to introduce students to alternating current theory and its applications in both electrical and electronic systems. Topics such as: AC sine-wave analysis, AC power distribution, electro-magnetics, capacitors, inductors, transformers, resistive-capacitive-inductive (RLC) circuit analysis, poly-phase electrical systems, filters, and resonant RLC circuits will be covered in detail. The lab component of the course is designed to reinforce the theory by providing a series of hands-on applications combined with computer-simulated lab experiments. Electronic test and measure equipment such as dual trace oscilloscopes, signal generators, digital multi-meters (DMM), spectrum analyzers, capacitor/inductor analyzers, and bread boards will be used throughout the course.
Prerequisite: ETL113.
ETL120 Rotating Machines and Transformers 3 Credits
This course covers the basic theory of operation for a variety of AC and DC rotating machines, including DC motors and generators, AC three phase motors and generators and AC single phase motors. Operation principles and installation techniques of single phase and three phase transformers will also be covered. Reference to the appropriate articles of the National Electrical Code as they relate to AC/DC machines will be an ongoing part of this course.
Pre/Co-requisite: ETL113, ETL114.
ETL121 Electrical Wiring Practices I 5 Credits
This course is designed to cover the common wiring practices used in residential applications. Reference to the latest edition of the National Electrical Code will be an ongoing part of the course. Students will work on lab exercises that will give them practical hands-on experience and the applicable trade information required to become proficient in the residential electrical construction field. Particular emphasis will be placed on topics such as workplace safety, tools of the trade, electrical measuring instruments, branch and feeder circuit installation, service entrance installation, wiring techniques, and electrical construction materials and nomenclature.
Pre/Co-requisite: ETL113.
ETL122 Electrical Wiring Practices II 5 Credits
This course is designed to cover the common writing practices used in commercial and industrial applications. Reference to the latest edition of the National Code will be an ongoing part of the course. Students will work on lab exercises that will give them practical hands-on experience and the applicable trade information required to become proficient in the commercial and industrial electrical construction field. Particular emphasis will be placed on topics such as workplace safety, tools of the trade, wiring techniques, conduit bending, voice, video and data wiring, and electrical materials and nomenclature.
Pre/Co-requisite: ETL121
ETL124 Solid State Devices 3 Credits
This theory/lab course is a continuation of DC and AC theory. The student will be introduced to the following topics: semiconductor theory, diodes, power supplies, filtering, transistor theory, amplifiers, oscillators and operational amplifier principles, and SCR and triac control circuits. Pre/Co-requisites: ETL114 or permission of instructor
ETL127 Electrical Motor Controls 3 Credits
This course will provide the student with a detailed interpretation of motor control applications using modern methods and equipment. Particular emphasis will be given to manual, semi-automatic, and automatic control of motors. Troubleshooting techniques will be covered in detail. Pre/Co-requisites: ETL113, ETL114 and ETL120
ETL215 National Electrical Code 3 Credits
This course will cover the major articles of the current edition of the National Electrical Code. Examples of its application to actual wiring installations will be included. Particular emphasis will be placed on chapters 1, 2, 3, 4 & 9. Material covered is designed to help prepare the student for State of Maine Electrical Licensing.
Pre/Co-requisite: ETL121 and ETL 120; or currently working in the field as an electrician.
ETL221 Industrial Control Systems 4 Credits
This is a theory/lab course designed to teach the basics of Programmable Logic Controllers (PLC's). The theory of programming, use of hardware and software in the installation and set-up, troubleshooting, and input/output addressing will be covered in detail. Operation of logic gates and logic circuits will include Boolean expressions. Hands-on applications will reinforce the learning process.
Pre/Co-requisite: ETL127, ETL124
ETL222 Introduction to Instrumentation 3 Credits
This course is designed to provide the student with an introduction to the basic principles of instrumentation and process control. It includes a thorough discussion of the various instruments used in industrial applications. The operating principles of these instruments will be covered and actual examples of instrument applications in process control will be emphasized. Measurement of temperature, pressure, level, flow, and humidity and what part these variables play in an industrial process will be covered in detail.
Pre/Co-requisite: ETL221 or permission of the instructor.
ETL225 Energy Alternatives, Conservation, and
Management 3 Credits
This course is designed to introduce the student to the latest energy conservation and management technology. It will include coverage of topic areas such as wind power electrical generation, photovoltaics, solar heating equipment and controls, and building energy management. Energy conservation devices and installation techniques will be covered in detail. This is a lecture/lab course and will include several "hands-on" learning experiences.
Pre/Co-requisites: ETL120, ETL127, ETL221 or instructor permission.
ETL226 Experiential Education - Electrical 3 Credits