This program explains AC motors in detail. The general operation of three-phase (3Ø) and single-phase (1Ø) 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.
This program covers the important topic of three-phase (3Ø) power generation and how it arrives at the manufacturing plant or facility. The program starts with how three-phase power is generate and how power is transmitted from a source, such as a hydroelectric plant, all the way to your facility. Also cover is the important wye and delta power systems, as well as the need for balanced circuits in the power distribution network of your manufacturing operation. Everyone who works with, or around, electrical equipment needs to know the basics as well as how to protect themselves and your equipment.
This program covers power distribution inside the plant and how this power is properly routed including the use of switchgear and busways. Also presented is how the power is passed on to motor control centers, (MCCs) panel boards, and control panels to control equipment in the plant. Thorough explanations on the functionality of transformers are also presented, including wye-to-wye and delta-to-delta transformer configurations used in power distribution.
In this program, students are presented with several lessons dedicated to the understanding of many basic field control devices. The input field devices covered in this program include: Standard switches Push buttons Selector switches Pilot lights Drum switches The operation, installation, application, and troubleshooting of these input field devices are also presented in this program.
This program presents students with a course dedicated to the understanding of control relays and timer devices and the important function they play in the control of machinery and equipment. The operation, installation, application, and troubleshooting of these control devices are also presented in this program.
This program explains the different types of discrete instrumentation sensing devices that are used to sense the position of parts and components and their operation. The sensing devices covered in this program include limit, proximity, and photoelectric switches, which are used in detection of parts in a manufacturing operation. The program explains how these instrumentation components detect mechanical motion and translate it into an electrical signal so that a control circuit may use it to execute the intended command. Also explained are the troubleshooting tasks for these control elements as well as the proper installation and necessary adjustments according to the device’s application.
This program will explain the different types of process instrumentation discrete sensing devices. These devices are used to sense application process control information. Covered are the discrete control devices found mostly in process control applications. These devices are pressure, flow, float, and temperature sensors. You will also learn about the operation, the control, and representation of solenoid-operated valves. The program explains how these instrumentation devices detect a signal level and translate it into an electrical signal so that a control circuit may use it. Also explains the troubleshooting tasks for these control elements as well as the operation of solenoid valves.
This program presents students a thorough explanation of electrical control circuits and the diagrams that represent these circuits. It also covers in detail ladder diagrams, how to read and reference them, and how to properly document them. In addition to ladder diagrams, the program discusses the input logic components of control circuits (AND-OR-NOT), as well as how to implement control outputs. We will also go over control circuit examples and implementation.
This program discusses electrical control circuits and the addition of memory to a circuit. The program also covers the important topic of interlocking and discusses the different types which include mechanical, push button and auxiliary contact interlocking methods and how they are used in the implementation of more complex control circuits. Also covered in detail is the interpretation of more complex ladder diagrams including the cross-referencing of control relays and mechanically linked devices, as well as wiring diagrams including magnetic starter wiring. The program also covers layout and connection diagrams to give you the guidelines on how to properly put together your control panel that houses the control circuit.
In this online training program, you will learn about preventive maintenance and how to troubleshoot electrical control circuits. Preventive Maintenance and Troubleshooting Control Circuits training program will present preventive maintenance approaches, guidelines, and scheduling. Additionally, the course teaches methods for implementing preventive maintenance in both control circuits and the plant’s electrical power distribution network. The training program will show the troubleshooting methods and techniques for three different control circuit components: the power source, the control circuit itself, and the power circuit. It will also explain several methods for troubleshooting short circuits and component failures. In this training program, a candidate will also get to learn how a motor controller works. Modules are as follows: Preventive Maintenance (PM) Engineering PM into Control Systems Troubleshooting the Power Source Troubleshooting the Control System Finding a Short Circuit Finding a Faulty Component Troubleshooting a Ladder Circuit
This program presents the operation of contactors and how these devices are used to control motor operations. Also will show 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. The program also presents 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. Students will also learn about plugging speed switches, also known as zero-speed switches, and how these devices are used in circuits to stop motors.
In this program, students will 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.
In this program students will learn how to create safe motor circuits to control the speed and direction of motors. Students will be presented with motor control wiring diagrams and their relationship with the ladder control diagram. The students 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.
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.
This program explains in detail the operation of reversing AC motor circuits using drum switches, manual, and magnetic starters. Decelerating circuits are also explained in detail, 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 1Ø and 3Ø AC motors starting and working but not correctly and how to identify its causes and how to fix the problems.
In this program, students 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. This module covers the mechanisms and ways to start DC motor, along with the methods and reasons why large DC motors are reduced started. The program also covers how to reverse the direction of DC motors as well how to control the speed of a DC motor.
In this program students are presented with 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.
In this program, students will be introduced to programmable logic controllers (PLCs) and how they are used to implement electrical and motor control circuits in industrial applications. This module explains how a PLC operates and scans the input and output field devices and the important relationship between electromechanical and PLC ladder diagrams. The program also covers the important topic of I/O field device addressing and how field devices are known inside the PLC. Discrete input and output interfaces are discussed as well as how to install them and the actual PLC unit.
In this program, students will be introduced to the discrete programming instructions that are used in the implementation of electromechanical control using a PLC, which are the basic relay instructions. This module explains the operation of the basic on-delay and off-delay types of timers and how to program them in a PLC application. Also covered are the special considerations that you must take when implementing timer control programming.
In this program, students will be presented with the implementation of PLC control from electromechanical control. The examples involve the control of motors as well as the implementation of Forward/Reverse control using a Fwd/Rev motor starter. The module explains how to go about to assign the input and output addresses that will be used in the PLC. Also covered are the troubleshooting of PLC inputs and outputs as well as the CPU and how to implement basic PLC preventive maintenance.