Nntroubleshooting of electrical equipment and control circuits pdf

Electrical control circuits are an essential part of a functioning electrical system. Electrical equipment should be serviced only by quali. Basic troubleshooting strategies all about circuits. This manual is intended for use in a dc electrical circuits course and is appropriate for two and four year electrical engineering technology curriculums. Type of standards iecnec for low voltage electrical installations. Transformer protection of appliance and equipment connected to ac power supplies. Each event is an assertion about some behavioral parameter of some constituent of the system e. Troubleshooting an electrical installation with reference to the electrical blueprint.

There is a large gap between the theory of electron flow, magnetic fields and that of troubleshooting electrical equipment and control circuits in the plant. Electrical science dc circuits v objectives terminal objective 1. In this book, we try to avoid or at least minimize discussions on the theory and instead focus on showing you how to troubleshoot electrical equipment and control circuits. Electrical engineering is an engineering discipline concerned with the study, design and application of equipment, devices and systems which use electricity, electronics, and electromagnetism. This course focuses on the main issues of troubleshooting electrical equipment and control circuits of today to enable the participants to walk onto their plant or facility to troubleshoot and fix problems. At the end is just an example how our software uses real world workorder system to track student while doing electrical troubleshooting. Electrical problems, electrical troubleshooting, troubleshooting electrical circuits, my channel s. Editions of practical troubleshooting of electrical. Kirchhoffs laws, node and mesh analysis, deltastar and stardelta. Electrical circuit theory and technology revised second edition john bird, bschons, ceng, miee, fieie, cmath, fima, fcollp newnes oxford amsterdam boston london new york paris san diego san francisco singapore sydney tokyo. 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. The manual contains sufficient exercises for a typical 15 week course using a two to three hour practicum period. The emphasis is on practical issues that go beyond typical electrical theory and focus on providing those that attend with the necessary toolbox of skills in solving electrical problems, ranging from control circuits to motors and variable speed drives. How to do electrical troubleshooting of electrical motor.

This may not always be acceptable, especially if the sampling frequency and power transistor switching frequencies are close to the band of interest. This workshop shows delegates how to troubleshoot electrical equipment and control circuits. When the relay is deenergised lamp l1 is extinguished. The objective of the electrical circuits lab is to expose the students to the of electrical circuits and give them experimental skill. Troubleshooting control circuits tcc is the second simulation in our series. Practical process control for engineers and technicians wolfgang altmann practical power systems protection les hewitson, mark brown and ben. An electrician is troubleshooting a faulty light circuit. Electrical equipment and devices are vital in all electrical. Practical troubleshooting of electrical equipment and. Simulation software download uses controls system circuit simulation to train skill tech on theory and how circuit works via electronic door lock.

Basic troubleshooting strategies basic electricity pdf version. 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. Ele practical troubleshooting of electrical equipment. Switches necessary to turn the electrical circuit on or off connecting wires to create a complete circuit path through which current flow from the source going to the circuit load. Editions for practical troubleshooting of electrical equipment and control circuits. All control equipment and circuitry shall be mounted so that it is easily removable for. Electrical troubleshooting an electrical motor control circuit. How to troubleshoot electrical systems construction. This book describes practical issues related to the design and implementation of these control circuits, with a focus on the presentation of the state of theart control solutions, including circuit technology, design techniques, and implementation issues. Jun 08, 2019 an electrical circuit in which some of the elements are connected in series and some of the elements are connected in parallel is called a series parallel circuit. Before you begin to track down the cause of any electrical issue, its a good idea to refer to equipment. In this article ill be doing the same, but ill also try to suggest a few ways you can alter your thinking about the way you approach troubleshooting. Electric circuit or electrical network electrical4u. Causal analysis \vhen an electrical engineer is asked to explain the operation of an electrical system he will often describe it in terms of a sequence of events each of which is caused by previous events.

Navy electricity and electronics training series the navy electricity and electronics training series neets was developed for use by personnel in many electrical and electronicrelated navy ratings. Digital signal processing in power electronics control circuits. A single circuit carrying electrical current usually limited to 20 amps to office fur niture and. Control circuits are a key element in the operation and performance of power electronics converters.

Motor and motor control troubleshooting techniques. This workshop 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. This video uses electrical troubleshooting simulation software to teach you how to troubleshoot an electrical motor control circuit. Connect the control system only to a circuit protected by a class a gfci mounted at least 5 1. For more information, refer to the holt cat electrical. Learn the nature and applications of industrial electricity and how to wire, operate, and troublesho. Most circuit problems are due to incorrect assembly, always double check that your circuit exactly matches the drawing for it. Overcurrent protection and sizing of the power circuit. Electrical installation handbook protection, control and. As a technician, you are sent to troubleshoot a complex piece of electronic equipment that has stopped working. Dec, 2004 practical troubleshooting of electrical equipment and control circuits focuses on the handson knowledge and rules of thumb that will help engineers and employers by increasing knowledge and skills, leading to improved equipment productivity and reduced maintenance costs.

Troubleshooting control circuits simutech multimedia. Static switching control is a method of switching electrical circuits. This workshop 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. The following is a short discussion concerning basic electrical troubleshooting. Having an effective troubleshooting plan and following it can help obtain this feeling of satisfaction. Troubleshooting power harmonics basic troubleshooting using multimeters and current clamps a mystery is occurring in todays office buildings and manufacturing plants. This course focuses on the main issues of troubleshooting electrical equipment and control circuits of today. Abb protection, control and electrical devices 9 1 standards low voltage directive 200695ce the low voltage directive refers to any electrical equipment designed for use at a rated voltage from 50 to. Troubleshooting an electrical motor control circuit. Therefore, a digital circuit is considered as a digital controller rather than an analog circuit. It can change the electrical voltage or current from one level to another. Minimisation of equipment failure troubleshooting tricks troubleshooting control circuits basic control circuits ladderlogic circuits troubleshooting strategies twowire control and handsoffauto overload protection threewire control startstop joginch circuits sequence start and stop automatic. Troubleshooting electrical control circuits is defined as the logical and orderly process to determine the fault or faults in an electrical control circuit. It may be that you have to move a high wattage item like a space heater or kitchen appliance to another circuit.

Shortcuts provides explanations on how these circuits work and presents innovative electrical troubleshooting procedures for batteries, cranking circuits and charging circuits that anyone can follow. Troubleshooting of electrical motor control circuit. 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 the detailed analysis. 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. Basic electrical circuits and their working for electrical. Reference manual industrial control panels and electrical siemens. Electrical troubleshooting 1 before using a voltmeter on electrical components, do the following. Troubleshooting common electrical problems for industrial. All aspects of this technology cannot be adequately presented in a brief appendix such as this. Transformers supplying seemingly average loads are overheating. The turnon or turnoff process in power circuits is not only a logiclevel operation. Appendix b automatic train control technology train control and engineerthe technology of automatic embraces many kinds of equipment ing techniques. Abb protection, control and electrical devices 9 1 standards low voltage directive 200695ce the low voltage directive refers to any electrical equipment designed for use at a rated voltage from 50 to v for alternating current and from 75 to 1500 v for direct current.

Wear appropriate protective clothing and equipment. Refer to nec national electrical code, 2005 edition, article 680 for more information. Basic circuit troubleshooting worksheet basic electricity. Examples of control circuits 6 2wire control 6 3wire control 69 shunting thermal units during starting period 10. Ladder diagrams interpretation types of ladder diagram generic electrical equipment ladder diagrams designing control circuits interlock control circuits protective relays and timers ladder diagrams fail safe designs. This functions can separately incorporate equipment or might be. Industrial electricity and troubleshooting electrical control. This is a basic course, without any prerequisites, that. This industrial electricity and troubleshooting electrical control circuits course is offered multiple times in a variety of locations and training topics. The troubleshooting basic electrical control circuits cbt is great for training and to evaluate performance of new technicians. There is a chasm between the theory of electron flow, magnetic fields and troubleshooting electrical equipment and control circuits in the plant. Sep 09, 2014 there is a chasm between the theory of electron flow, magnetic fields and troubleshooting electrical equipment and control circuits in the plant. Electrical control circuits and equipment page 16 of 344 activity 1.

Simulation of electrical machines, circuits and control systems using finite element method and system simulator doctoral dissertation sami kanerva dissertation for the degree of doctor of science in technology to be presented with due permission of the department of electrical and communications engineering for public examination and. Therefore, the discussion is confined to two major elements of train control technology. Troubleshooting basic electrical control circuits system. Upon opening the cabinet door for this equipment, your nose is greeted by the pungent odor of burnt circuit. Ensure circuits where portable electrical equipment can be connected are protected. 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. Consequently, power electronics operates in the field of energy conversion and control of energy flow in different technological equipment. Electrical troubleshooting of an electrical motor control circuit never work on live circuits unless the proper safety equipment and procedures are in place. Electrical circuits make our modern lifestyle possible. In previous articles for construction equipment magazine, ive detailed specific skills and practices that can be used to speed up and streamline electrical troubleshooting. Vehicle electrical troubleshooting shortcuts veejer.

The fundamental knowledge and skills of the basic electrical circuits always work as a strong foundation for technically sound experience. Conduct a hazard assessment and follow approved safe work practices. Troubleshooting electrical control circuits industrial wiki. First make sure the problem is not something simple such as an unplugged device or a tripped circuit. A relay coil k1 has onoff control provided by two pushbutton switches s1 and s2. Heres some practical information for technicians and their managers about troubleshooting common electrical problems they may encounter in industrial settings. Electric shock occurs when the body becomes part of an electrical circuit. British standards can be obtained in pdf or hard copy formats from bsi. It emerged as an identifiable occupation in the latter half of the 19th century after commercialization of the electric telegraph, the telephone, and. Electrical circuits i this lecture discusses the mathematical modeling of simple electrical linear circuits. Tracing of electrical circuits with the relevant wiring diagrams will be demonstrated in this training seminar to ensure correct methods of troubleshooting.

No matter how urgent the problem and motor failure can cause some very urgent problems always develop a plan of attack. Practical troubleshooting of electrical equipment and control. When modeling a circuit, one ends up with a set of imppylicitly formulated algebraic and differential equations daes, which in the process of horizontal and vertical sorting are converted to a set of explicitly formulated. Electrical circuit theory and technology ches iitm. A virtual troubleshooting exercise such as this one is a good. Department of electrical engineering basic electrical engineering 4 credit course code. Ramesh practical telecommunications and wireless communications edwin wright and deon reynders practical troubleshooting of electrical equipment and control circuits mark brown, jawahar. Students can also become vigorously familiar with these basic circuits particularly with handson experience. Written by, and with the advice of, senior technicians in these ratings, this series provides beginners with fundamental electrical and electronic. Bee1101 1 st and 2 nd semester syallabus modulei 10 hours dc networks.

The purpose of lab experiment is to continue to build circuit construction skills using different circuit element. Troubleshooting electrical circuits wiring electrical. The many example circuits in particular are continually. Upon opening the cabinet door for this equipment, your nose is greeted by the pungent odor of. Practical electrical equipment and installations in. Fortunately, electrical circuit troubleshooting is an activity that works well for small groups of students to engage in as well as individual students. Electrical equipment for machines and their associated industrial control panels. A very common example is the connection of conductors in the rotor of dc motor.

These circuits perform such jobs as power supply, lighting, loading system control, train and. Unit 1conclusion this unit explained the basic concepts of motor controls, concentrating on how specialized electrical symbols, words, and line diagrams are used to convey information about motor control circuits. Control panel design guide according ul 508a eaton. Jan 01, 2002 practical troubleshooting of electrical equipment and control circuits book. Typical electrical drawing symbols and conventions. Equipment with segregated power and control circuits is preferred. The emphasis is on practical issues that go beyond typical electrical principles, providing a toolkit of skills in solving electrical problems, ranging from. Were talking about linetoground faults that may damage equipment. Many digital control circuits in current literature are described using analog transmittance. The emphasis is on practical issues that go beyond typical electrical principles, providing a toolkit of skills in solving electrical problems. Be sure that parts with positive or negative markings. Draw a circuit diagram using semidetached symbols to satisfy the following.

Circuit analysis there are many electrical and electronic circuits used in ordnance equipment. The software used in this video can be purchased here. Most of the practical circuits are series parallel circuits. What are electrical control circuits and what roles do they play in industrial work. Ramesh practical telecommunications and wireless communications edwin wright and deon reynders practical troubleshooting of electrical equipment and control circuits. Troubleshooting electrical circuits can be helpful when you are getting overloads on one circuit. First make sure the problem is not something simple such as an unplugged device or a tripped circuit breaker. Use insulated gloves, tools, blankets, and barriers if required. Black wires are conventionally used in power circuits and red wire in control circuits for ac magnetic equipment.