Before getting into details of printed circuit board, there are some basics you need to know about circuits. With a 12 volt power source connected to the load, the meter should read a voltage drop equal to the source voltage or 12 volts. How to do electrical troubleshooting of electrical motor control circuit. Electrical motor control circuits free download for. Pdf troubleshooting electrical motor control circuits pdf. General troubleshooting guide for electric circuit. Before troubleshooting, you need to identify the basic problem with the system. Troubleshooting electrical circuits tec is our foundational electrical troubleshooting simulation. This simple troubleshooting technique is applicable to a wide variety of electrical, electronic, and other types of systems.
An electrician is troubleshooting a faulty light circuit, where the power source and light bulb are far removed from one another. Troubleshooting electrical control circuits industrial wiki. Electrical troubleshooting, plc troubleshooting training. Use mydaq digital multimeter dmm to test mysnap components if they appear to be damaged or not working properly. Always use a power switch to remove power when building circuits. Because the wiring and the inputs and outputs ios are the most vulnerable elements in a system, be sure to locate and identify these elements in the problem circuit. Troubleshooting in the field motor testing motor controller programmable logic controllers plc. Electrical troubleshooting an electrical motor control circuit. Online electrical troubleshooting training course tpc. Industrial electricity and troubleshooting electrical control circuits. Diagnosing of defective printed circuit boards pcb.
Troubleshooting electrical circuits wiring electrical. For proper air conditioner troubleshooting, you need to understand some basics of air conditioners. But dont assume the supply is healthy if you get good readings even the weakest electrical connection will pass a voltage reading without applied load. If the swapped component is indeed faulty, but in such a way that it. Your professionals will diagnose and repair a variety of faults in a simulated control circuit consisting of relays, pushbuttons, a control transformer, a solenoid lock, a proximity switch, and circuit protection. Your professionals will learn to diagnose and repair a variety of faults in a simulated electrical circuit consisting of wiring, lights, relays, switches and pushbuttons.
Practical troubleshooting of electrical equipment and control circuits pdf 1. A laptop computer with plc programming, communication, and operating programs are a necessary tool in todays modern plant. All trademarks, registered trademarks, product names and company names or logos mentioned herein are the property of their respective owners. This control circuit operation and troubleshooting program will provide the student with the information needed to troubleshooting and repair control circuits. Work handson with our latest fault training panels.
I have been having some weird electrical problems in 2 different areas of my house. The electrical troubleshooting online electrical training course covers use of schematic diagrams, determining sequence of operation, and use of building diagrams and singleline diagrams. It also includes instructions on how to use the tstrainer. Practical troubleshooting of electrical equipment and control circuits focuses on the handson knowledge and rulesofthumb that will help engineers and employers by increasing knowledge and skills, leading to improved equipment productivity and reduced maintenance costs. There are three main electrical circuits in a power climber hoist as taught in the electrical for power climber hoist technicians, motor, brake and control circuits. This will effectively identify the resistance to ground of the starter, line circuits to the disconnect, and load lines to the motor and starter windings. Practical troubleshooting of electrical equipment and control circuits will help engineers and technicians to identify, prevent and fix common electrical equipment and control circuits. Effective troubleshooting skills will significantly reduce the length of an outage, however, effective troubleshooting begins well in advance of an unexpected outage. Lesson 1 troubleshooting with electrical schematics.
Learn how to effectively diagnose electrical control circuit problems. Learn more about our course for troubleshooting motor control circuits, which utilizes controller simulator software to educate your company on motor control circuits. Schematic diagrams show components in their electrical sequence without regard for physical location. Air conditioner troubleshooting good ac repair tips 1 how to. Motor and motor control troubleshooting techniques. Includes maintenance procedures for control circuits and combination starters. The included 32 page electrical troubleshooting pdf lab manual also provides more introduction to troubleshooting control circuits. Troubleshooting electrical circuits simutech multimedia. At the end is just an example how our software uses real world workorder system to track student while doing electrical troubleshooting with our simulation software, and the detailed analysis report. Basic electricity current, voltage, and resistance ohms law and calculations seriesparallel circuits. It may be that you have to move a high wattage item like a space heater or kitchen appliance to another circuit. Industrial maintenance troubleshooting industrial controls. First make sure the problem is not something simple such as an unplugged device or a. How to do electrical troubleshooting of electrical motor.
Sometimes, the only way to test a circuit is to see how the system reacts to a manual input. Troubleshooting electrical controls how to troubleshoot. Electrical motor control circuits is a product developed by business industrial network. Schematics are generally easier to read and understand than wiring diagrams. Preface practical troubleshooting of electrical equipment and control circuits i ii. Build typical sensor, relay and coil circuits and then diagnose faults. Practical troubleshooting of electrical equipment pdf archive. A boiler feed pump being powered by two 3500 hp induction motors appears to be developing a problem. About 70% of the time is spent working, handson, at a troubleshooting station with motor control circuits operating at a safe, low level of 24 volts. This site is not directly affiliated with business industrial network. For example, in figure b1, the control wiring from the startstop pushbutton. However, schematics show the logic behind an electrical circuit and allow a mechanic to understand the intended functions of the electrical components and how the components relate to each other. This is a basic course, without any prerequisites, that. The test leads are connected in parallel across the circuit load.
Unit 1 basic principles of motor controls different manufacturers of control devices, as well as books about motor controls, use different methods of showing the control circuit wiring. Troubleshooting control circuits tcc is the second simulation in our series. At the end is just an example how our software uses realworld workorder system to track student while doing electrical troubleshooting with our simulation software, and. Practical troubleshooting of electrical equipment and control circuits by mark brown, jawahar rawtani, dinesh patil there is a large gap between what you learn in college and the practical knowhow demanded in the working environment, running and maintaining electrical equipment and control circuits. Eymc timed agenda \ syllabus time subject break day 1 8. Basics of industrial electricity and troubleshooting electrical control circuits 4 day code. The motor circuit is easy to identify with the troubleshooting techniques learned.
These manuals are specifically made up for the individual panel, and are generally sufficient for any or all problems which may be encountered. Use eye protection when experimenting on your own circuits. Ele practical troubleshooting of electrical equipment. Troubleshooting control circuits simutech multimedia. The software used in this video can be purchased here. About 70% of the time is spent working, handson, at a troubleshooting station with motor. It is a broad overview of what has proven to be a simple, but effective, method of investigating an electrical problem. Troubleshooting a plc motor starter with jogging circuit. Some ac electrical problems can arise solely from broken electrical parts and faults in the wiring that services it. The emphasis is on practical issues that go beyond typical electrical principles, providing a toolkit of skills in solving electrical problems, ranging from.
Analogue signature analysis to test the unpowered printed circuit boards pcbs. The emphasis is on practical issues that go beyond typical electrical principles, providing a toolkit of skills in solving electrical problems, ranging from control circuits to motors and variable speed drives. Explains troubleshooting practices on dc and ac motors, identifying unmarked leads on threephase delta and yconnected motors. Sometimes a circuit might develop some sort of a defect or fault and it is necessary to carry out electrical troubleshooting in such a case. Circuit troubleshooting is the highest level of thinking required of many electrical and electronics professionals. Pdf lesson 1 troubleshooting with electrical schematics. Basic troubleshooting strategies all about circuits. The following information will provide basic information about electrical troubleshooting, however each electrical circuit must be carefully considered with respect to. As you can see in the diagram, there are several terminal blocks tb through which electrical power is routed to the light bulb. The troubleshooting control circuit trainer aims at developing the skills to safely and efficiently troubleshoot all types of control circuits by providing handson. Logical circuits andseries circuit orparallel circuit compound and complex circuits not circuit basic electrical principles. The following is a short discussion concerning basic electrical troubleshooting.
Electrical troubleshooting 3 measuring voltage drop observe the circuit above. This can eliminate the breakers tripping when multiple items are turned on at the same time. Practical troubleshooting of electrical equipment and control circuits. Fortunately, electrical circuit troubleshooting is an activity that works well for small groups of students to engage in as well as individual students. Troubleshooting electrical control circuits is defined as the logical and orderly process to determine the fault or faults in an electrical control circuit.
Download pdf of practical troubleshooting of electrical equipment and control circuits by mark, jawahar, dinesh and steve for free pdf free download. Electrical troubleshooting in seven steps efficient plant. Schematic diagrams are used to troubleshoot and install control circuits. This includes basic refrigeration, electricity, electrical components and how electromechanical controls work. Troubleshooting of electrical motor control circuit.
A wiring diagram on the other hand shows the physical wiring layout as in where wires are connected and allows a mechanic to trace specific circuits. Troubleshooting electrical wiring is best performed by electricians who understand the fundamentals of electricity and have experience installing home electrical circuit wiring. Failure of this pump will result in the loss of a generator currently producing half of the stations power output. We have been learning about some interesting facts and circuits related to digital electronics such as ghost detection circuit, basic tubelight circuit, dc to dc charger and so forth. A twowire control circuit can be a simple switch that makes or breaks connection to a motor figure 18 1. Within your air conditioner itself, there are many. Basics of industrial electricity and troubleshooting. Practical troubleshooting of electrical equipment and control circuit free download as text file. In addition, basic air conditioner components and air conditioner sequence of operation. A virtual troubleshooting exercise such as this one is a good way to start students thinking in the right ways to becoming effective troubleshooters. A few circuits that require 220v will supply both mains, so that the full 220v can be utilized for higher power applications. Guide to home electrical problems and how to fix them. Attendees will experience live circuit faults in a real world scenario.
This book focuses on the main issues of troubleshooting electrical equipment and control circuits of today to enable you to walk onto your plant or facility to troubleshoot and fix problems as quickly as possible. Disengage the starter and inspect the contacts closely. Discover the practical knowhow and rulesofthumb they dont teach you in the classroom. Basic circuit troubleshooting worksheet basic electricity. Troubleshooting electrical circuits can be helpful when you are getting overloads on one circuit. Youll need to use your megohmmeter to ground test line and load circuits at the starter. It requires you to follow specific and systematic procedures.
Basic circuit troubleshooting worksheet all about circuits. These are some of the common parts and problems that lead to electrical failure. Practical troubleshooting of electrical equipment and. Scribd is the worlds largest social reading and publishing site. Troubleshooting an electrical motor control circuit shut off the power to a circuit before performing any work on it. Whenever you are troubleshooting an electrical circuit, try to check as many things as possible while power is removed. This video uses electrical troubleshooting simulation software to teach you how to troubleshoot an electrical motor control circuit. The lab manual can be accessed via the software and you can also optionally print it out for a hard copy. Within the industrial troubleshooting realm today, electrical troubleshooting also requires great computer skills. Eymc timed agenda \ syllabus time subject break day 4 8.
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