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Content

Electric Motor and Control Maintenance


Electric Motor and Control Maintenance



CONTROL EQUIPMENT 1

This training program train students to disassemble, inspect, maintain, and troubleshoot a variety of motors. Also presented are procedures for maintaining and troubleshooting control equipment.

  • Introduction to Troubleshooting
  • Ruling out Problems
  • Troubleshooting Control Circuits
  • Introduction to Removing and Replacing Parts
  • Checking a Circuit Dead
  • Checking for Continuity
  • Removing and Installing Parts
  • Poles and Throws

    This program is excellent both for the training of maintenance mechanics as well as for the multi-craft training needs of process and manufacturing facilities.


    DVD / 2005

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    CONTROL EQUIPMENT 2

    This training program train students to disassemble, inspect, maintain, and troubleshoot a variety of motors. Also presented are procedures for maintaining and troubleshooting control equipment.

  • Introduction to Limit Switches
  • Finding the Cause of the Problem
  • Replacing the Contact Block and Testing the Switch
  • Introduction to Torque Switches
  • Adjustment and Testing of a Torque Switch
  • Setting the Open Rotor on the Geared Limit Switch
  • Setting the Close Rotor

    This program is excellent both for the training of maintenance mechanics as well as for the multi-craft training needs of process and manufacturing facilities


    DVD / 2005

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    CONTROL EQUIPMENT 3

    This training program train students to disassemble, inspect, maintain, and troubleshoot a variety of motors. Also presented are procedures for maintaining and troubleshooting control equipment.

  • Overload Relays
  • De-Energizing a Controller
  • Performing a Continuity Check
  • Overload Relay Removal
  • Installing and Checking a New Overload Relay
  • Introduction to Coils
  • Replacing a Coil
  • Ruling Out Components Based on Operation
  • Performing a Continuity Check to Find the Problem

    This program is excellent both for the training of maintenance mechanics as well as for the multi-craft training needs of process and manufacturing facilities.


    DVD / 2005

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    CONTROL EQUIPMENT 4

    This training program train students to disassemble, inspect, maintain, and troubleshoot a variety of motors. Also presented are procedures for maintaining and troubleshooting control equipment.

  • Fuses
  • Installing New Fuses
  • Small Molded Case Circuit Breakers
  • Replacing a Circuit Breaker
  • Ground Fault Circuit Breakers
  • Large Molded Case Circuit Breakers
  • Testing Large Molded Case Circuit Breakers

    This program is excellent both for the training of maintenance mechanics as well as for the multi-craft training needs of process and manufacturing facilities


    DVD / 2005

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    CONTROL EQUIPMENT 5

    This training program train students to disassemble, inspect, maintain, and troubleshoot a variety of motors. Also presented are procedures for maintaining and troubleshooting control equipment.

  • Motor Starters
  • Troubleshooting Coil-Operated Contactors
  • Auxiliary Contacts and Removing Coil-Operated Contactors
  • Disassembling Coil-Operated Contactors
  • Reversing Magnetic Starters
  • Control Transformers
  • Operationally Testing a Control Transformer

    This program is excellent both for the training of maintenance mechanics as well as for the multi-craft training needs of process and manufacturing facilities.


    DVD / 2005

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    CONTROL EQUIPMENT 6

    This training program train students to disassemble, inspect, maintain, and troubleshoot a variety of motors. Also presented are procedures for maintaining and troubleshooting control equipment.

  • Performing an Operational Test
  • Ruling Out Portions of the Circuit
  • Ruling Out Components
  • Locating the Problem
  • Testing a Valve Mechanically and Electrically
  • Locating the Problem
  • Checking for a Short Circuit
  • Finding a Grounded
  • Soldering Connections
  • Finishing Connections
  • Solderless Connectors

    This program is excellent both for the training of maintenance mechanics as well as for the multi-craft training needs of process and manufacturing facilities.


    DVD / 2005

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    MOTORS 1

    This training program train students to disassemble, inspect, maintain, and troubleshoot a variety of motors. Also presented are procedures for maintaining and troubleshooting control equipment.

  • Basic Parts and Operation
  • Bearings and Lubrication
  • Failing Bearings
  • Disconnecting Power Supply and Motor Leads
  • Predisassembly Readings
  • Motor Disassembly
  • Removing the Rotor

    This program is excellent both for the training of maintenance mechanics as well as for the multi-craft training needs of process and manufacturing facilities.


    DVD / 2005

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    MOTORS 2

    This training program train students to disassemble, inspect, maintain, and troubleshoot a variety of motors. Also presented are procedures for maintaining and troubleshooting control equipment.

  • Installing a Split Bearing Puller
  • Removing Bearings and Inspecting Bearing Surfaces
  • Measuring Bearing Seating Surfaces
  • Inspecting the Rotor and Stator
  • Preparing Bearings for Installation and Cleaning the Rotor and Stator
  • Replacing Bearings
  • Motor Reassembly
  • Reconnecting the Motor

    This program is excellent both for the training of maintenance mechanics as well as for the multi-craft training needs of process and manufacturing facilities.


    DVD / 2005

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    MOTORS 3

    This training program train students to disassemble, inspect, maintain, and troubleshoot a variety of motors. Also presented are procedures for maintaining and troubleshooting control equipment.

  • Wound Rotor Induction Motors
  • Brush Assemblies
  • Brush Assembly Maintenance
  • Slip Ring Maintenance
  • Rotor Winding Maintenance and Variable Resistor Inspection
  • Contact Assembly
  • Verifying Change in Rotor Resistance
  • Split Phase Motors
  • Centrifugal Switches
  • Capacitor Start-Induction Run Motors

    This program is excellent both for the training of maintenance mechanics as well as for the multi-craft training needs of process and manufacturing facilities.


    DVD / 2005

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    MOTORS 4

    This training program train students to disassemble, inspect, maintain, and troubleshoot a variety of motors. Also presented are procedures for maintaining and troubleshooting control equipment.

  • DC Motor Operation
  • Commutators
  • Commutator Inspection
  • Removing Brush Rigging
  • Undercutting Mica
  • Reinstalling Brush Rigging
  • Installing Brushes
  • Seating Brushes
  • Completing Maintenance

    This program is excellent both for the training of maintenance mechanics as well as for the multi-craft training needs of process and manufacturing facilities.


    DVD / 2005

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    MOTORS 5

    This training program train students to disassemble, inspect, maintain, and troubleshoot a variety of motors. Also presented are procedures for maintaining and troubleshooting control equipment.

  • Introduction to Troubleshooting
  • Questioning the Operator
  • Evaluation and Power Supply Check
  • Control Circuit Checks
  • Mechanical Checks
  • Electrical Checks
  • Operational Checks
  • Program Review

    This program is excellent both for the training of maintenance mechanics as well as for the multi-craft training needs of process and manufacturing facilities.


    DVD / 2005

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    ELECTRIC MOTOR THEORY - MAGNETISM AND ROTATION

    This program explains the simple magnetic process that creates rotation from a motor; the different types of motors and their applications; the basic parts of a motor and how to determine if the motor is bad or good.

    DVD (Closed Captioned) / 1996 / (Grades 9-12, College, Adult) / 45 minutes

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    ELECTRIC MOTOR THEORY - SINGLE PHASE MOTORS PART 1

    This program discusses the specifics of a single phase motor; basic wiring diagram; the single phase motors: capacitor start, permanent split, capacitor start-shaded pole model; and three ways of starting a single phase motor.

    DVD (Closed Captioned) / 1996 / (Grades 9-12, College, Adult) / 45 minutes

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    ELECTRIC MOTOR THEORY - SINGLE PHASE MOTORS PART 2

    This program elaborates on single phase motors; how they operate, how they are set up and wired. It also covers single phase motor protection and testing single phase motors utilizing the knowledge of the component being tested and the tools being used.

    DVD (Closed Captioned) / 1996 / (Grades 9-12, College, Adult) / 45 minutes

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    MOTOR PROTECTION PART 1

    This program explains the details of the protection of motors and other load devices such as an electrical strip heater using the schematic wiring diagram. Reasons for protection are covered.

    DVD (Closed Captioned) / 1996 / (Grades 9-12, College, Adult) / 45 minutes

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    MOTOR PROTECTION PART 2

    This program describes the different types of protection devices. Overload sensing devices may use current, temperature, line duty or pilot duty. More devices are discussed and how they fit together. Recognition of equipment is highlighted.

    DVD (Closed Captioned) / 1996 / (Grades 9-12, College, Adult) / 45 minutes

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    SINGLE PHASE MOTOR OPERATION

    This program describes the differences between the manufacturer and drawn schematics of a motor, how it is wired into the schematic, and how all components are tied together.

    DVD (Closed Captioned) / 1996 / (Grades 9-12, College, Adult) / 45 minutes

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    AC MOTOR CONTROLS AND TROUBLESHOOTING

    This program explains AC motors in detail. The general operation of three-phase (3O) and single-phase (1O) motors is reviewed as well as the components that form a motor. Also covered in detail are the three different types of single phase capacitor motors.

    The start and acceleration methods of Full-Voltage (Across-The-Line) and Reduced-Voltage are presented. The program explains in detail the five types of reduced voltage starts which include: Primary resistor, Autotransformer, Wye-Delta, Part winding and Solid-state.

    Also presents in detail the operation of reversing AC motor circuits using drum switches, manual, and magnetic starters. Accelerating and decelerating circuits are also explained, along with braking techniques using friction brakes, plugging switches and electric braking. Multi-speed motors are also covered including constant torque, constant horsepower and variable torque.

    This module also includes a thorough explanation of troubleshooting AC motors and what symptoms to look for to avoid motor failures. Also presented is the topic of 1O and 3O AC motors starting and working but not correctly and how to identify its causes and how to fix the problems.


    DVD / 63 minutes

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    DC MOTOR CONTROLS AND TROUBLESHOOTING

    In this program, you will be presented with the information necessary to understand and apply DC motors and their control circuits. DC motor components and operation are covered in detail.

    Also covered are the mechanisms and ways to start DC motor, along with the methods and reasons why large DC motors are reduced started. This program presents how to reverse the direction of DC motors as well how to control the speed of a DC motor.

    You are also shown the acceleration methods used to control the speed of a DC motor. These methods include variable resistance such as rheostat or resistor banks and using solid-state speed control using SCRs.

    Also covered in detailed are the deceleration methods, as well as braking options. The program also presents extensive troubleshooting methods and techniques used with series, shunt and compound DC motors


    DVD / 38 minutes

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    INTRODUCTION TO MOTOR CONTROL OPERATIONS AND PROTECTION

    In this program, you will learn about the operation of contactors and how these devices are used to control motor operations. This program will present you with the wiring and connection methods used with contactors and motor starters along with their wiring diagrams.

    Also covered are the important topic of ARC suppression and protection. You will also be presented with the different types of motor starters, which include full-voltage, combination, reversing, two-speed, and reduced-voltage which are commonly used in motor control applications. You will also learn about plugging speed switches, also known as zero-speed switches, and how these devices are used in circuits to stop motors.

    You will also learn about protective switches including fuses, circuit breakers, and motor overload heaters, as well as their respective overload contacts. Methods of troubleshooting these components are also covered.

    Fuse curves are presented to solidify the understanding of fuse operation and protection and how to select the proper fuse. Also covered is the effect of ambient temperature on thermal overloads and how they can affect motor control protection.

    You will learn how to create safe motor circuits to control the speed and direction of motors. You will be presented with motor control wiring diagrams and their relationship with the ladder control diagram. You will also learn about how two-wire and three-wire control circuits operate, review what makes motors fail, and learn how to prevent potential motor failure.


    DVD / 64 minutes

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    SIZING THE PROTECTION OF MOTORS AND CONTROL CIRCUITS

    In this program students will be introduced to the important National Electric Code Article 430, which deals with motor and circuit protection. They will be presented with information on how to properly design and implement a safety control circuit and how to go about choosing the correct protection components for branch and feeder circuits.

    The topic on how to properly read a motor nameplate is also explained in detailed. Also presented is the selection of NEMA starters and a summary on the six-steps to be taken when putting together a motor branch circuit.

    Some skills, such as reading motor nameplates, may be basic but are still important. The information in this program is extremely important because if someone makes a mistake, not only will you not be up to code, but a dangerous situation could occur.


    DVD / 22 minutes

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