Official Course Description: MCCCD Approval: 02/26/02
HVA105 20024-20035	LEC	3 Credit(s)	3 Period(s)
Electricity for Industry
Overview of electricity related to industrial applications. Operation of and safety for use of electrical meters. Calculating electrical loads and evaluation of air conditioning power sources. Types of single-phase motors and determining resistance of motors and motor terminals. Function of electro-magnetic solenoids and transformers. Basic semiconductor principles and devices. Familiarization with the National Electric Code. Prerequisites: None. Corequisites: ELC/FAC/HVA105LL or permission of instructor.
Cross-References: ELC105, FAC105

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MCCCD Official Course Competencies:
HVA105   20024-20035	Electricity for Industry

1.	Explain the relationships and electrical charges of basic parts of atoms. (I)
2.	Compare and contrast good conducting materials and good insulating materials. (II)
3.	Define electricity and magnetism and explain their applications to industrial application. (III)
4.	Draw basic and complex electrical circuits, using appropriate symbols and conventions. (IV)
5.	Define terms related to specific electrical quantities, state Ohm's Law and solve specific problems using Ohm's law equations. (V)
6.	Explain the operation of and safety standards for use of electrical meters for industrial applications that determine voltage, resistance, and current. (VI)
7.	Calculate resistive electrical loads for series, parallel and series-parallel circuits, using rules for each type fo circuit and Ohm's law equations. (VII)
8.	Define specific terms associated with power sources and alternating power production and evaluate specifiec electrical sources at locastion, determining voltage, phase and type of transformer service. (VIII)
9.	Explain types of reactive loads and power factors of those loads related to industrial applications. (IX)
10.	Explain the effects of capacitive and inductive components on voltage and current in terms of phase angle relationships. (IX, XI)
11.	Define electro-magnetic solenoid, explain its function and relationship to relays, contactors, magnetic line starters, and solenoid valves. (IX, XII)
12.	Given resource materials, calculate wire size based upon wire resistance, length of run, load, temperature and other derating factors. (X)
13.	List the major sections of the National Electric Code. (X)
14.	List the types of single phase motors, explain how the electrical fields produce rotating effects and determine winding resistance of motor terminals. (XI, XII)
15.	Explain the operation of motor overloads including solder melting and thermal overloads. (XII)
16.	Diagram the wiring of the basic refrigeration system, explain the function of each of the componenets and perform basic problem analysis and troubleshooting functions on the circuit. (XII)
17.	Explain the principle of the P-N junction. (XIII)
18.	Explain the basic functions and applications of diodes, transistors, diacs, triacs and SCR's. (XIII)

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MCCCD Official Course Outline:
HVA105   20024-20035	Electricity for Industry

I. Basic Atomic Structure A. The Nucleus 1. proton 2. neutron B. The Electron shells 1. electron 2. valence II. Material Differentiation A. Conductors 1. number of electrons in valance shell 2. distance of valance shell from nucleus B. Insulators 1. number of electrons in valance shell 2. distance of valance shell from nucleus C. Semiconductors 1. number of electrons in valance shell III. Electricity and Magnetism A. Magnetism 1. polarity 2. attraction and repulsion 3. lines of force B. Electric current 1. electron flow 2. polarity 3. attraction and repulsion 4. electromagnetic fields 5. direct and alternating current IV. The Basic Electrical Circuit A. Power supply, conductor, switch, load B. Electrical drawings 1. ladder diagrams 2. schematic (point-to-point) wiring diagrams 3. electrical symbols V. Electrical Terms, Ohm's Law, and Equations A. Terms 1. coulomb 2. ampere 3. voltage 4. ohm 5. watt B. Ohm's law 1. statement 2. equation C. Equations 1. E=IR 2. P=IE VI. Electrical Meter Operations/Safety/Purpose A. Volt meter B. Ammeter C. Ohmmeter D. Readings 1. analog 2. digital VII. Resistance Loads A. Resistors 1. fixed 2. variable 3. electric heating elements B. Series 1. total resistance 2. current 3. voltage 4. rules 5. equations C. Parallel 1. total resistance 2. current 3. voltage 4. rules 5. equations D. Series-parallel 1. rules 2. equations VIII. Electrical Services A. Definition of terms 1. hertz 2. single phase 3. three phase 4. delta 5. wye 6. phase voltage 7. line voltage 8. phase current 9. line current 10. phase angle 11. power factor B. Evaluation of sources/voltage/phase/type 1. transformers (Power) 2. loads 3. alternating power generation 4. open delta C. Distribution panel box(es) 1. phasing 2 circu.Reactive Loads A. Inductive loads 1. relays 2. motors 3. chokes 4. phase angle shift 5. parallel and series inductive loads B. Capacitive loads 1. capacitors 2. phase angle shift 3. parallel and series capacitors C. Combination loads 1. calculations 2. power factor correction X. Wire Sizing/Code/Insulation A. Wire resistance 1. diameter 2. type of materials 3. length 4. load 5. temperature 6. other factors B. National Electrical Code (NEC) 1. specific reference 2. other notes C. Insulation 1. type 2. voltage rating XI. Single Phase Motors A. Types 1. split phase 2. shaded pole XII. Basic Refrigeration System Wiring A. Refrigeration compressors / motors 1. windings 2. starting 3. reversing the direction 4. dual voltage 5. starting capacitors 6. running capacitors 7. terminal identification B. Motor overloads 1. solder melting 2. thermal (bimetal) C. Electro-magnetic solenoid 1. definition 2. function D. Control Devices 1. time clocks 2. thermostats 3. temperature switches 4. pressure switches E. Control wiring F. Trouble-shooting XIII. Semiconductors A. Semiconductor manufacturing 1. the P-N junction 2. trivalent and pentavalent doping B. Semiconductor devices 1 diode.transistors 3. SCR's 4. diacs and triacs C. Integrated Circuits 1. timers 2. operational amplifiers 3. logic gates

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