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Course Criteria
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2.00 Credits
2 Credits (2 Lecture 0 Lab 0 Shop) 2 Hrs/Wk (2 Hrs. Lecture) *15 wks This course is a study of electrical prints and electrical estimation. Students will examine residential, commercial, and industrial blueprints in conjunction with regulation that apply from the latest version of the National Electrical Code. Emphasis is placed on examining these prints for the purpose of cost analysis and material ordering.
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2.00 Credits
2 Credits (1 Lecture 1 Lab 0 Shop) 3 Hrs/Wk (1 Hr. Lecture 2Hrs. Lab)*15 wks This course is a study of transformers, associated commercial/industrial wiring, and applicable National Electrical Code (NEC) articles. Emphasis will be placed on practical applications and study of single and three phase connections, polarity testing, use of test equipment to determine shorts, grounds, and opens, transformer types, and code requirements for transformer installations. Prerequisite:ELT 111.
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2.00 Credits
2 Credits (1 Lecture 1 Lab 0 Shop) 3 Hrs/Wk (1 Hr. Lecture 2Hrs. Lab) *15 wks This course is a study of electrical motor controls. Students select I.E.C. and NEMA magnetic starters and overloads to control and protect motors in conjunction with Article 430 of the NEC. Input devices include pushbuttons and selector switches. Control devices include motor starters, On-delay timers, and Off-delay timers. Typical circuits include Stop/Start, Jog, Sequence, Interlock, and Time-control. Particular emphasis is placed on ladder diagrams, designing and wiring control circuits. Prequisite: ELT 111.
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2.00 Credits
2 Credits (1 Lecture 1 Lab 0 Shop) 3 Hrs/Wk (1 Hr. Lecture 2Hrs. Lab)*15 wks This course is designed to serve as an introduction to active electronic devices. Satisfactory completion will help satisfy state of Maine electricians licensing requirements. The student will review major DC and AC concepts that will be needed for topics to be covered in this course. Emphasis will be placed on superposition, Norton, and Thevenin's theorems used in analyzing and simplifying electronic circuits. Particular emphasis will be placed on semiconductor theory, rectification, filters, limiters, clampers, transistor current sources and switches. The course will provide a foundation for future studies in the electrical and electronics areas. Prerequisite: ELT 111.
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2.00 Credits
2 Credits (1 Lecture 1 Lab 0 Shop) 3 Hrs/Wk (1 Hr. Lecture 2Hrs. Lab)*15 wks This course is a study of the first half of the latest National Electrical Code, NEPA 70. It offers electricians an understanding of how the NEC is organized and provides information on proper electrical installations. Students will review and research code rules pertaining to chapters 1 through 4. This course can be used as the code requirement to sit for the Electrician's Exam.
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4.00 Credits
4 Credits (3 Lecture 1 Lab 0 Shop) 5 Hrs/Wk (3 Hrs. Lecture 2 Hrs. Lab )*15 wks This is the student's first course in electronics and covers the concepts of mass, work, and energy. Atomic structure and units of electrical charge are covered as they apply to D.C. circuits. Necessary test equipment including voltmeters, ammeters, ohmmeters, and oscilloscopes will be covered in this unit. Particular emphasis is placed on Ohm's Law, Kirchoff's voltage and current laws, series, parallel, series parallel circuits, magnetism, and basic DC ammeter and voltmeter design. The student will learn advanced techniques such as Superposition, Norton, Thevenin, and Millman's theorems used in trouble-shooting complex circuits and networks. The course will provide a foundation for future studies in the electrical and electronics areas. Corequisite: MAT 100 or 122.
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4.00 Credits
4 Credits (3 Lecture 1 Lab 0 Shop) 5 Hrs/Wk (3 Hrs. Lecture 2 Hrs. Lab )*15 wks This course will prepare the student in the areas of logical analysis, testing, and trouble-shooting. This course is essential for the student's understanding of electricity and is a foundation for the study of more advanced courses. Necessary test equipment including oscilloscopes and signal generators will be covered in this unit. Proficiency in the use of test equipment and AC concepts used in troubleshooting circuits will be demonstrated by the student through hands on laboratory experimentation. Particular emphasis is placed on inductance, capacitance, magnetism, transformers, impedance matching, resonance, phase angle, and frequency effects in reactive circuits. The student will learn advanced circuit analysis techniques using vector analysis and the j operator. Prerequisites: ELT 111, and MAT 100 or 122.
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2.00 Credits
2 Credits (1 Lecture 1 Lab 0 Shop) 3 Hrs/Wk (1 Hr. Lecture 2Hrs. Lab)* 15 wks This course is designed to prepare the student in the areas of logical analysis, troubleshooting technique, maintenance, and selection of industrial primary devices and transmitters used for the measurement and control of process variables. Particular emphasis is placed on the theory and application of pressure, flow, level, and temperature measurements. Processes will be analyzed in terms of process dead time and capacity to determine optimum loop turning parameters. Selected labs using Foxboro instrumentation will be used throughout to create real and simulated process control systems. Prerequisite: ELT 112.
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3.00 Credits
3 Credits (2 lecture 1 Lab 0 Shop) 4 Hrs/Wk (2 Hrs. Lecture 2 Hrs. Lab) *15 wks This course is a study of the functioning of electrical devices that are primarily used for manual switching of circuits such as piloted single-pole switches, Eagle three-way switches, four-way switches, momentary relays, and latching relays. Emphasis is placed on methods of wiring these devices into a system following N.E.C. procedures and interpreting blueprints and schematics. Applications include wiring switches to control lights and receptacles. Complete switching systems are formed by wiring together electrical equipment such as timeclocks, photoeyes, and relays. Singlephase transformers are used to step-up, step-down, and buck/boost voltages. DC motors are tested and connected for specific direction of rotation and speed. Corequisite: ELT 111.
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2.00 Credits
2 Credits (1 Lecture 1 Lab 0 Shop) 3 Hrs/Wk (1 Hr. Lecture 2 Hrs. Lab)*15 wks This course is a study of basic control concepts and their applications to automated systems. This includes: single and three phase motors, manual and magnetic motor starters, pushbutton circuits, and oil burner controls. Particular emphasis is on: three phase principles and calculations, single & 3 phase motor connections, basic motor and heating control circuits and article 430 of the NEC. Interpreting blueprints and schematics. Applications include: testing 3 phase motors and connecting them to basic motor control circuits. Testing and troubleshooting single phase motors. Connecting and troubleshooting oil burner control circuits. Interpreting motor control catalogs. Prerequisite: ELT 123.
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