Basics of industrial electricity and troubleshooting. 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. Troubleshooting a plc motor starter with jogging circuit. Electrical troubleshooting, plc troubleshooting training.
Troubleshooting control circuits simutech multimedia. About our troubleshooting motor control circuits course. Within the industrial troubleshooting realm today, electrical troubleshooting also requires great computer skills. 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. A virtual troubleshooting exercise such as this one is a good way to start students thinking in the right ways to becoming effective troubleshooters. Troubleshooting electrical wiring is best performed by electricians who understand the fundamentals of electricity and have experience installing home electrical circuit wiring. This site is not directly affiliated with business industrial network. Troubleshooting in the field motor testing motor controller programmable logic controllers plc. The troubleshooting control circuit trainer aims at developing the skills to safely and efficiently troubleshoot all types of control circuits by providing handson.
These manuals are specifically made up for the individual panel, and are generally sufficient for any or all problems which may be encountered. 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. Basic circuit troubleshooting worksheet all about circuits. All trademarks, registered trademarks, product names and company names or logos mentioned herein are the property of their respective owners. It requires you to follow specific and systematic procedures. I have been having some weird electrical problems in 2 different areas of my house. Discover the practical knowhow and rulesofthumb they dont teach you in the classroom. How to do electrical troubleshooting of electrical motor control circuit. Practical troubleshooting of electrical equipment and. As you can see in the diagram, there are several terminal blocks tb through which electrical power is routed to the light bulb.
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. Before getting into details of printed circuit board, there are some basics you need to know about circuits. The following information will provide basic information about electrical troubleshooting, however each electrical circuit must be carefully considered with respect to. It also includes instructions on how to use the tstrainer. Electrical troubleshooting 3 measuring voltage drop observe the circuit above. Troubleshooting of electrical motor control circuit. Industrial maintenance troubleshooting industrial controls. Troubleshooting electrical controls how to troubleshoot. Sometimes, the only way to test a circuit is to see how the system reacts to a manual input. This control circuit operation and troubleshooting program will provide the student with the information needed to troubleshooting and repair control circuits. Basic troubleshooting strategies all about circuits. Guide to home electrical problems and how to fix them.
Troubleshooting electrical circuits can be helpful when you are getting overloads on one circuit. Pdf lesson 1 troubleshooting with electrical schematics. Scribd is the worlds largest social reading and publishing site. Diagnosing of defective printed circuit boards pcb. Build typical sensor, relay and coil circuits and then diagnose faults. Practical troubleshooting of electrical equipment and control circuits pdf 1. It is a broad overview of what has proven to be a simple, but effective, method of investigating an electrical problem. 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.
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. About 70% of the time is spent working, handson, at a troubleshooting station with motor. Youll need to use your megohmmeter to ground test line and load circuits at the starter. Schematic diagrams show components in their electrical sequence without regard for physical location. These are some of the common parts and problems that lead to electrical failure.
The following is a short discussion concerning basic electrical troubleshooting. Download pdf of practical troubleshooting of electrical equipment and control circuits by mark, jawahar, dinesh and steve for free pdf free download. Within your air conditioner itself, there are many. Electrical motor control circuits is a product developed by business industrial network. Analogue signature analysis to test the unpowered printed circuit boards pcbs. If the swapped component is indeed faulty, but in such a way that it. How to do electrical troubleshooting of electrical motor. This simple troubleshooting technique is applicable to a wide variety of electrical, electronic, and other types of systems. The emphasis is on practical issues that go beyond typical electrical principles, providing a toolkit of skills in solving electrical problems, ranging from. Some ac electrical problems can arise solely from broken electrical parts and faults in the wiring that services it.
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. 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. Eymc timed agenda \ syllabus time subject break day 4 8. 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. 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. An electrician is troubleshooting a faulty light circuit, where the power source and light bulb are far removed from one another. This can eliminate the breakers tripping when multiple items are turned on at the same time. Schematic diagrams are used to troubleshoot and install control circuits. First make sure the problem is not something simple such as an unplugged device or a.
This is a basic course, without any prerequisites, that. Electrical motor control circuits free download for. Practical troubleshooting of electrical equipment and control circuit free download as text file. It may be that you have to move a high wattage item like a space heater or kitchen appliance to another circuit. In addition, basic air conditioner components and air conditioner sequence of operation. Troubleshooting electrical control circuits is defined as the logical and orderly process to determine the fault or faults in an electrical control circuit. 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. Motor and motor control troubleshooting techniques.
General troubleshooting guide for electric circuit. Electrical troubleshooting an electrical motor control circuit. Basic circuit troubleshooting worksheet basic electricity. Ele practical troubleshooting of electrical equipment. Includes maintenance procedures for control circuits and combination starters. Basic electricity current, voltage, and resistance ohms law and calculations seriesparallel circuits.
Schematics are generally easier to read and understand than wiring diagrams. Troubleshooting electrical circuits tec is our foundational electrical troubleshooting simulation. Wiring diagrams show components mounted in their general location with connecting wires. For example, in figure b1, the control wiring from the startstop pushbutton. 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. Before troubleshooting, you need to identify the basic problem with the system. Practical troubleshooting of electrical equipment pdf archive. Work handson with our latest fault training panels. Troubleshooting electrical circuits wiring electrical. Pdf troubleshooting electrical motor control circuits pdf. Circuit troubleshooting is the highest level of thinking required of many electrical and electronics professionals.
Disengage the starter and inspect the contacts closely. 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. Explains troubleshooting practices on dc and ac motors, identifying unmarked leads on threephase delta and yconnected motors. Fortunately, electrical circuit troubleshooting is an activity that works well for small groups of students to engage in as well as individual students. The motor circuit is easy to identify with the troubleshooting techniques learned. The included 32 page electrical troubleshooting pdf lab manual also provides more introduction to troubleshooting control circuits. Learn more about our course for troubleshooting motor control circuits, which utilizes controller simulator software to educate your company on motor control circuits. 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. Industrial electricity and troubleshooting electrical control circuits. A few circuits that require 220v will supply both mains, so that the full 220v can be utilized for higher power applications. Effective troubleshooting skills will significantly reduce the length of an outage, however, effective troubleshooting begins well in advance of an unexpected outage. 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. A boiler feed pump being powered by two 3500 hp induction motors appears to be developing a problem.
Learn how to effectively diagnose electrical control circuit problems. This includes basic refrigeration, electricity, electrical components and how electromechanical controls work. Control circuits can be divided into two major types. Troubleshooting electrical control circuits industrial wiki. A twowire control circuit can be a simple switch that makes or breaks connection to a motor figure 18 1.
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. Basics of industrial electricity and troubleshooting electrical control circuits 4 day code. 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. Practical troubleshooting of electrical equipment and control circuits. Air conditioner troubleshooting good ac repair tips 1 how to.
Electrical troubleshooting in seven steps efficient plant. 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. The lab manual can be accessed via the software and you can also optionally print it out for a hard copy. For proper air conditioner troubleshooting, you need to understand some basics of air conditioners.
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. Use mydaq digital multimeter dmm to test mysnap components if they appear to be damaged or not working properly. This video uses electrical troubleshooting simulation software to teach you how to troubleshoot an electrical motor control circuit. Logical circuits andseries circuit orparallel circuit compound and complex circuits not circuit basic electrical principles. Lesson 1 troubleshooting with electrical schematics. Use eye protection when experimenting on your own circuits. Troubleshooting control circuits tcc is the second simulation in our series. The electrical troubleshooting online electrical training course covers use of schematic diagrams, determining sequence of operation, and use of building diagrams and singleline diagrams.
The software used in this video can be purchased here. Attendees will experience live circuit faults in a real world scenario. Electrical troubleshooting of an electrical motor control circuit never work on live circuits unless the proper safety equipment and procedures are in place. Always use a power switch to remove power when building circuits. Practical troubleshooting of electrical equipment and control circuits will help engineers and technicians to identify, prevent and fix common electrical equipment and control circuits. Preface practical troubleshooting of electrical equipment and control circuits i ii. Online electrical troubleshooting training course tpc. 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. The test leads are connected in parallel across the circuit load.
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