Electrical Maintenance


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    401 Direct Current (DC)

    401-01 Electron Theory
    When you complete this lesson, you will be able to discuss basic electron theory and explain how the interaction between electrons and protons of atoms creates electrical energy. You will also be able to identify the factors that affect the movement of electrons, and explain how these factors are measured.

    401-02 Magnetism and Electromagnetism Explained
    When you complete this lesson, you will be able to describe the basic principles of magnetism.

    401-03 Ohm’s and Kirchoff’s Laws Relating to DC Circuits
    When you complete this lesson, you will be able to describe Ohm’s law, the basic formula for finding power (in watts), and Kirchoff’s first and second laws as they relate to DC circuits.

    401-04 Evaluating Series and Parallel DC Circuit Performance
    When you complete this lesson, you will be able to describe how current, voltage, resistance, and power flow through series and parallel DC circuits. You will also be able to calculate values of current, voltage, resistance, and power flow in DC series and parallel circuits. Finally, you will be able to explain some techniques for evaluating DC circuit performance.
    401-05 Determine Circuit Outputs from Specified Inputs
    When you complete this lesson, you will be able to use formulas to compute DC series and parallel circuit outputs based on the known inputs.

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    402 Alternating Current (AC)

    402-01 Introduction to Alternating Current
    When you complete this lesson, you will be able to explain the differences between AC power and DC power, define terminology relating to graphing AC power, and explain what is mean by effective values of AC power. You will also be able to describe the common production of AC power and define terminology regarding the characteristics of AC power.

    402-02 Ohm’s and Kirchoff’s Laws Involving AC Circuits
    When you complete this lesson, you will be able to describe Ohm’s law and Kirchhoff’s current and voltage laws as they relate to AC circuits. You will also be able to calculate power in a resistive AC circuit.

    402-03 Inductance in AC Circuits
    When you complete this lesson, you will be able to understand and calculate values of inductance and find the total amount of inductive reactance in a circuit.

    402-04 Capacitance in AC Circuits
    When you complete this lesson, you understand how capacitance reacts in an AC circuit, be able to calculate total values, and understand calculations for capacitive reactance.

    402-05 Impedance in AC Circuits
    When you complete this lesson, you will be able to determine the total impedance of an AC circuit and apply Ohm’s law to find other unknown values.

    402-06 AC Power
    When you complete this lesson, you will be able to calculate for unknown values in a power triangle and calculate power factor.

    402-07 Fundamentals of Three-Phase AC
    When you complete this lesson, you will be able to identify the construction of an AC circuit, calculate the circuits’ capacity value, and conduct power factor corrections in AC circuits.

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    405 Power Quality

    405-01 Power Quality
    When you complete this lesson, you will be able to discuss the nature of power supplied to electrical equipment and list circumstances that affect its quality.

    405-02 Harmonics
    When you complete this lesson, you will be able to describe problems that may arise in electrical systems due to harmonics.  In addition, you will be able to identify the benefit of equipment with minimal harmonic distortion and discuss the wiring methods used to minimize the effects of harmonics.

    405-03 High-voltage AC
    When you complete this lesson, you will be able to identify the values of high and ultra-high-voltage systems, common system components, and high and ultra-high specific measurement and testing considerations.

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    409 Industrial Motors

    409-01 AC Induction Motors
    When you complete this lesson, you will be able to describe the design and function of several different types of AC induction motors.

    409-02 AC Generators
    When you complete this lesson, you will understand how an AC generator produces an AC voltage.

    409-03 AC Induction Motor Theory
    When you complete this lesson, you will be able to describe how an electric AC motor uses the principles of magnetism and magnetic fields to convert electrical energy into mechanical energy.

    409-04 Troubleshooting AC Induction Motors
    When you complete this lesson, you will be able to discuss effective troubleshooting procedures for AC induction motors. You will also be able to state various problems related to motor installation, maintenance, and repair.

    409-05 AC Induction Motor Maintenance
    When you complete this lesson, you will be able to describe general electric motor maintenance and inspection activities.

    409-06 Overhauling Induction Motors
    When you complete this lesson, you will be able to describe and properly execute each of the steps necessary to the induction motor overhaul process.

    409-07 Generator System Heat Protection
    When you complete this lesson, you will be able to discuss industry standard heat reduction methods for industrial AC power generation, including hydrogen cooling systems and their associated equipment.

    409-08 Generator Overhaul
    When you complete this lesson, you will be able to discuss the steps taken in shutting down the generator, preparing a generator for maintenance, and considerations when conducting the overhaul inspection.

    409-09 DC Motors and Generators
    When you complete this lesson, you will understand how DC generators and motors convert energy from one form to another. In addition, you will be able to describe basic DC generator and motor winding configurations, and identify uses of each type.

    409-10 Maintenance of Direct Current Motors and Generators
    When you complete this lesson, you will be able to describe the basic components of a DC motor and a DC generator, and be prepared to conduct basic maintenance and inspections of each.

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    411 Motor Control

    411-01 Introduction to Motor Controls
    When you complete this lesson, you will be able to draw a simple motor control circuit and describe relative ladder logic.

    411-02 Motor Protection and Fault Diagnosis
    When you complete this lesson, you will be able to explain the difference between internal and external motor faults. In addition, you will be able to select the proper overcurrent and short circuit protection devices for motor branch circuits.

    411-04 Motor Control Centers
    When you complete this lesson, you will be able to explain the function of MCCs, common components of an MCC, and the difference between common classifications and their associated wiring schemes.

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    413 AC Drives

    413-01 AC Drives Overview
    Upon completion of this lesson, you will understand the basic designs, purposes, and applications for AC drive devices.

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    415 Transformers

    415-01 Transformer Basic Operation and Theory
    When you complete this lesson, you will be able to explain magnetism and electromagnetism and to explain the basic principles of electrical voltage transformation.

    415-02 Transformer Design and Components
    When you complete this lesson, you will be able to visually identify the type of core construction in a transformer, describe types of transformer cooling, temperature limits, and external devices of the transformer.

    415-03 Transformer Connections
    When you complete this lesson, you will be able to identify and explain how to make the most common types of connections for single-phase and three-phase transformers. You will be able to calculate the value of phase voltage and current, as well as line voltage and current.

    415-04 Special Transformers
    When you complete this lesson, you will be able to identify the various types of special transformers and describe how they are used.

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    416 Batteries, Battery Chargers, and UPS

    416-01 Battery Basics
    When you complete this lesson, you will understand the overall design and function of today’s batteries. In addition, you will be able to identify maintenance practices you can perform to keep them ready for service.

    416-02 Electrical Backup Systems
    When you complete this lesson, you will be able to distinguish between types of backup systems and choose the type that fits your application.

    416-03 Uninterruptible Power Supplies (UPS)
    When you complete this lesson, you will be able to identify common power problems that create a need for backup power systems, how UPS systems vary in characteristics, and how each is applicable to particular situations.

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    417 Switchgear Maintenance

    417-01 Switchgear
    When you complete this lesson, you will be able to describe the function and operation of switchgear. You will be able to identify the equipment that makes up a switchgear system and describe the purpose of protection relays.

    417-02 Low Voltage Breakers
    When you complete this lesson, you will understand the purpose and use of low voltage circuit breakers in electrical circuits.

    417-03 Medium and High Voltage Switchgear
    When you complete this lesson, you will be able to identify the technical details associated with construction and operation of high and medium voltage switchgears.

    417-04 General Switchgear Maintenance
    When you complete this lesson, you will be able to identify and perform the common tasks and tests related to modern switchgear.

    417-05 Breaker Specific Maintenance
    When you complete this lesson, you will be able to complete breaker specific maintenance tasks in order to maximize breaker life and maintain system stability.

    417-06 Circuit Breaker Time-Travel Characteristics and Testing
    When you complete this lesson, you will be able to identify the purpose and principles of circuit breaker time-travel testing and explain the processes associated with conducting the three types of time-travel testing.

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    418 Electrical Protection and Grounding

    418-01 Electrical Faults and Current Ratings
    When you complete this lesson, you will be able to explain causes and types of electrical overcurrent, and identify how to protect circuits from overcurrents and faults.

    418-02 Overcurrent Protection, Fuses and Breakers
    When you complete this lesson you will be able to identify types of fuses and breakers used in electrical distribution systems and explain how they work.

    418-03 Protective Relays
    When you complete this lesson, you will be able to identify protection relay elements on an electrical drawing according to their ANSI (American National Standards Institute) standard device numbers. In addition, you will be able to describe basic relay operations and compare the accuracy and options provided by commonly used relays.

    418-04 Generator, Transformer, and Motor Protection
    When you complete this lesson, you will understand the principles of operation governing ground fault protection, phase-to-phase short circuit, time overcurrent protection, and motor overload protection.

    418-05 Grounding and Bonding
    When you complete this lesson, you will be able to describe how grounding systems are used to ground electrical systems and equipment.

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    419 Motor Operated Valves

    419-01 MOV (Motor Operated Valve) Application and Construction
    When you complete this lesson, you will be able to describe typical components, uses, and operations of motor operated valve actuators.

    419-02 MOV (Motor Operated Valve) Disassembly and Inspection
    When you complete this lesson, you will be able to explain how to disassemble, inspect, and reassemble a Limitorque® SMB-00/000 MOV actuator.

    419-03 MOV (Motor Operated Valve) Disassembly and Inspection, Part 2
    When you complete this lesson, you will be able to describe the reassembly techniques applied to the SMB-00/000 Limitorque® MOV.

    419-04 Limit Switch Adjustment
    When you complete this lesson, you will be able to explain the process of adjusting the limit switch for a Limitorque® actuator.

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    421 Connections and Terminations

    421-01 Wire and Cable Management
    When you complete this lesson, you will be able to determine how to properly use conduit and cable trays to ensure the necessary neat and workmanlike appearance required by the NEC.

    421-02 Terminating and Connecting Wires in a Control Panel
    When you complete this lesson you will be able to explain the basic steps to wire a control panel.

    421-03 Making Connections in a Junction Box
    When you complete this lesson, you will be able to explain how to make connections and terminations in a junction box using several systems.

    421-04 Installing Conduit and Pulling Wire
    Upon completing this lesson, you will be able to describe the major types of electrical conduit and the basics of installing and pulling wire through electrical conduit.

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    423 Cable Splicing

    423-01 Introduction to Medium Voltage Cable
    When you complete this lesson, you will be able to identify the components of medium voltage cable and why each is needed.

    423-02 Medium Voltage Splices and Terminations
    When you complete this lesson, you will know the steps needed to splice and terminate medium voltage power cable.

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    425 Troubleshooting Electrical Circuits

    425-01 Troubleshooting AC Circuits
    When you complete this lesson, you will be able to outline the logical steps used for troubleshooting AC motor control circuits.

    425-02 Troubleshooting DC Circuits
    When you complete this lesson, you will be able to outline the logical steps used to troubleshoot DC circuits.

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    427 Freeze Protection

    427-01 Electrical Freeze Protection Components and Application
    When you complete this lesson, you will be able to identify the fundamentals of heat-tracing and the methods used in its practice, as well as describe the types of electrical heat-tracing and their internal and external maintenance concerns.