Electric motor maintenance and troubleshooting by augie hand. Some standard lincoln electric motors are also capable of pws, yds or both as. Weve learnt a lot along the way and continue to use this experience to help create more efficient and more reliable electric bikes. If you feel resistance or hear rasping or scraping sounds when you rotate the shaft by hand.
Common causes for electric motor failure motor failure analysis. Unit 20 troubleshooting electric motors flashcards quizlet. Electric motors should be installed very carefully and should be looked after at regular intervals. Electric motor maintenance and troubleshooting, 2nd edition ebook. Jun, 2011 electric motor maintenance and troubleshooting, 2nd edition book.
Some standard lincoln electric motors are also capable of pws, yds or both as indicated in the following chart. This textworkbook provides a framework for acquiring the technical knowledge and applied skills needed by maintenance electricians and those in related electrical occupations. Most of them are caused by the overheating of motor. Troubleshooting electric motors presents learners with a practical approach to troubleshooting motors. Ball bearings in motors can wear out without lubrication. The frequency of routine service varies widely between applications. Essential for anyone who needs to buy, install, troubleshoot, maintain, or repair small to industrialsize electric motors, this practical guide contains new information on threephase motors along with coverage of the latest test instruments. Troubleshooting rotating machinery wiley online books. Simple troubleshooting tables or decision trees are rarely effective in solving complex, realworld machine problems.
Even when the motor matches the application on paper, you can still run into new variables while testing. Franklin electric submersible motors are a waterlubricated design. The problems involved with making and breaking electrical contact with a moving coil. Gather up any background material you may have on hand and then use your senses to inspect the site. Solve these common electric motor problems and get great electric motor reliability. They are widely used in the usa, where the singlephase supply is either 1 x 115 v60 hz or 1 x 230 v60 hz. If a sleeve bearing fails in a small, fractional horsepower motor, the motor is. All ecm motors slight cogging or rocking is inherent to all ecm motors motor is finding its location between stator and rotor and is determining rotation rumbling sound during startup and shutdown system mechanical resonance approx 300400rpm, three.
This textworkbook provides a framework for acquiring the technical knowledge and applied skills needed by maintenance electricians and those in. Mazur and a great selection of related books, art and collectibles available now at. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Mazurs most popular book is electrical motor controls for integrated systems. Troubleshooting in the field motor testing motor controller programmable logic controllers plc. The fill solution consists of a mixture of deionized water and propylene glycol a nontoxic antifreeze. A laptop computer with plc programming, communication, and operating programs are a necessary tool in todays modern plant. The book can be found at and various other websites. These instruments are used to measure voltage,current. See the motor nameplate for proper connection diagrams. Maintenance and troubleshooting of electric motors reliance electric posted 11005 motor maintenance scheduled routine care introduction the key to minimizing motor problems is scheduled routine inspection and service.
Some of its common problems include failure to start, motor overheating, noise, and vibration. The emphasis is on practical issues that go beyond typical electrical principles, providing a toolkit of skills in solving electrical problems, ranging from. Troubleshooting electric motors is a textworkbook that includes information and procedures for troubleshooting motors and motor circuits commonly used in industrial applications. Troubleshooting electric motors 5th edition by glen a. Practical troubleshooting of electrical equipment and control circuits will help engineers and technicians to identify, prevent and fix common electrical equipment and control circuits. When a motor fails, it is often difficult to see why it failed just by looking at it. These manuals are specifically made up for the individual panel, and are generally sufficient for any or all problems which may be encountered. Electric motor troubleshooting industrial motor training. Click this link to download the free 299page plant and equipment wellness pdf book and templates on how to. Single phase motors singlephase dualvoltage motors singlephase dualvoltage motors comprise two main windings, a starting winding, and a run capacitor. For additional information that could prove useful, check with motor manufacturers.
Audel electric motors maintenance troubleshooting resource. Practical troubleshooting of electrical equipment and control circuits. Apr 19, 2017 if your electric gate has stopped working there is probably a good chance its the same fault as shown being fixed in this video. Many electric motor failures are caused by bearing failures. It is comparatively easy to obtain the required speed through the use of motors directly connected to the driven machine, through speed reducers, or the now more economical geared motors, or even through vbelt or chain or sprocket drive. This 2part series will cover the most important steps of troubleshooting any step motor. The modern electric motor installation the individual motor drive has practically replaced all other types. How to check an electric motor if it is bad hunker. Quickly and accurately diagnose electric motor problems and find effective solutions with help. Jul 18, 2016 troubleshooting is part science and part art. This article is best viewed as a starting point for motor troubleshooting. Troubleshooting electrical motors flashcards quizlet.
Essential for anyone who needs to buy, install, troubleshoot, maintain, or repair small to industrialsize electric motors, this practical guide contains new information. Electric motor drive installing and troubleshooting. Typical applications of electric motors in mining, manufacturing, materials. Troubleshooting electric motor problems made easy for you. Electric motor maintenance and troubleshooting book depository. Electric motor safety and troubleshooting electric motors singlephase motors direct current motors threephase motors motor nameplate data motor selection motor protection motor failure special motors final exam. Insulation resistance test insulation resistance failure of an electric motor is one of the first signs that the motor is about to fail. Chapter 7 troubleshooting less common motors electric motor. Dec 12, 2012 breakdown causes by electric motor failures always happen in our operation due to of 2 major factors. The use of electrical motors in vehicles is very common and useful. Performing your own automotive electrical repair can be intricate work. A bad motor capacitor may cause starting problems or could shut off the motor while running. The higher the capacitance of the capacitor the more energy it can store.
If the motor problems cant be resolved with this list, please contact your supplier for assistance. Search for library items search for lists search for contacts search for a library. Electric motor drive troubleshooting cie bookstore online. Troubleshooting electric motors presents learners with a practical approach to troubleshooting motors and equipment in electrical systems. This article presents a basic explanation of electric motor construction and. These instruments are used to measure voltage,current, resistance. Ac motors are generally reliable and last a long time before needing to be replaced. This book, therefore, targets the large body of workers engineers and students reasonably versed in engineering concepts who feel the need for practical insights relating to electric motors. Bearings are located at both ends of the motor which are sometimes called bell housings or end bells. An electric motor is used for producing mechanical energy in various applications.
Motor troubleshooting includes a motor connection box to practice handson skills such as troubleshooting faults in a dc motor and ac singlephase and threephase motors, evaluating dc electric motor commutator and brush health, and using a multimeter to test an ac motor startrun capacitor. It is a very straight forward book that makes electrical troubleshooting very simple. When a conductor cuts or selection from electric motor maintenance and troubleshooting, 2nd edition, 2nd edition book. Basic electrical troubleshooting for everyone pdf free download. A motor placed in storage may or may not work, regardless of its physical appearance. These small wonders are capable of converting electrical energy into mechanical energy to power windshield wipers, windows, antennas, seats and rear view mirrors. There are also other factors which greatly affect the performance of electric motors such as low resistance, dirt, moisture, overcurrent and vibrations. At the motor bookstore, we offer automotive electronics repair manuals and wiring guides. Electric motor maintenance and troubleshooting, 2nd edition explains in detail how all types of ac and dc motors work essential for anyone who needs to buy, install, troubleshoot, maintain, or repair small to industrialsize electric motors, this practical guide contains new information on threephase motors along with coverage of the latest. Within the industrial troubleshooting realm today, electrical troubleshooting also requires great computer skills. May 06, 2017 troubleshooting electric motor problems made easy for you. This content was uploaded by our users and we assume good faith they have the permission to share this book.
It includes all aspects of troubleshooting, from locating the problem using test instruments to selecting the correct motor for replacement. Troubleshooting guide ac motor use this resource to troubleshoot your ac motor. This is the quintessential electric motor repair book that every diyer and. A fully uptodate, handson guide to electric motors keep electric motors running at peak performance. How to troubleshoot an electric motor capacitor problem. Electric motor maintenance and troubleshooting, 2nd. Essential for anyone who needs to buy, install, troubleshoot, maintain, or repair small to industrialsize electric motors, this practical guide contains new information on threephase motors along with coverage of the. Electrical troubleshooting textbook schoolcraft publishing. It is by no means complete, though much of the material comes from the motor mastery university. Groschopp tech tips troubleshooting an overheating motor. A good example is provided in the book the electrical troubleshooting pocket guide, a mcgrawhill publication, by john e. Like its predecessors, the third edition of this book is intended primarily for nonspecialist users and students of electric motors and drives.
But troubleshooting a variable speed drive is always a challenge. Grundfos motor book 26 grundfos motor book singlephase dualvoltage motors 2. Practical electric motor handbook pdf by irving m gottlieb. The motor is the last in a series of components that could fail.
Jul 06, 2011 electric motor maintenance and troubleshooting, 2nd edition. I was hoping 2ed edition would clear up problems and mistakes however the quality is just not there. Book description a fully uptodate, handson guide to electric motors. The bearings allow the shaft or rotor assembly to turn freely and smoothly in the frame. Electric motor failures can be due to mechanical component failure or electrical circuit failure. These gate motors are made by nice and the motor is type me3000. However, formatting rules can vary widely between applications and fields of interest or study. All motors are suitable for full voltage or acrosstheline start. Vfd consist of a complicated combination of electric power components and sensitive electronic circuits. Complete 200 page guide to every aspect of electrical troubleshooting explained in a way that makes is useful in the shop. Clear, detailed directions on installation, diagnosis and car electric codes mean you wont get your wires crossed while working on your vehicle. An indepth troubleshooting guide to help you with your ac electric motor issues.
The only userserviceable parts on an ac motor are the brushes and the bearings. Click download or read online button to get electric motors and drives book now. Troubleshooting problems on your ac motor is relatively straightforward, and providing you have reasonable doityourself abilities, repairing it is not too difficult. Typical instruments used for troubleshooting motor operation problems include a multimeter, clampon meter,insulation resistance meter, and infrared thermometer. Here are six common checks to help determine why your motor may be overheating. There are many different systems to consider when troubleshooting your electric golf cart motor. Read the following passages to understand more about recognizing and troubleshooting these problems. Audel electric motors book is the one stop destination to get information on installation, repairs and maintenance for all types of motor. My original aim was to bridge the gap between specialist textbooks which are pitched at a level too academic for the average user and. After determining that the carts batteries and charger are working properly, you can reset the motor to see if it runs. No matter how urgent the problem and motor failure can cause some very urgent problems always develop a plan of attack before you start repair work. While dc motors require the use of brushes to make electrical contact with moving. Breakdown causes by electric motor failures always happen in our operation due to of 2 major factors. Any deviation signifies a possibly bad electric motor or a motor that requires repairs.
Post a question or comment about how to troubleshoot electric motors such as air conditioning compressor motors, heating equipment burner or fan motors, swimming pool motors, water well pump motors. Tips for troubleshooting electric motors understanding the nuances of various motor types is essential when servicing or installing such units b y d e n n i s b u s h a fter more than 100 years of use, with an ever increasing installed base, there are probably few aspects of an electric motors. Dc motor and generator operation and components will be. Electric motors troubleshooting and understanding w tpc online. If the motor problems cant be resolved with this list. Electric motor maintenance and troubleshooting by augie hand, 9780071763950, available at book depository with free delivery worldwide. Electric motors and drives download ebook pdf, epub, tuebl. Download for offline reading, highlight, bookmark or take notes while you read electric motor maintenance and troubleshooting, 2nd edition. Industrial electrical troubleshooting electric motors. Electric motor maintenance and troubleshooting, 2nd edition.
Troubleshooting electric motors 5th edition 9780826918161. The electric motor maintenance and troubleshooting book covers all types of ac and dc motors. The type of motor will determine the types of tests you will perform to troubleshoot it. It is mechanical component defect and electrical circuit failure. Electric motors troubleshooting and understanding w tpc online webinar tpc training duration. This comprehensive reference presents electric motors, related equipment, and motor and equipment use in common industrial applications. How to solve common electric motor problems and get great. This site is like a library, use search box in the widget to get ebook that you want. The example used is a 240v, 3phase, delta system in a relatively small industrial application, with the service equipment as shown in the accompanying diagram. This course is designed for technicians who want to learn how to install, program, and troubleshooting electric motor drives. Troubleshooting electric motors with cd 4th edition. How to test and check single phase electric motors.
List the information to be included in a motor location file. Tips for troubleshooting electric motors understanding the nuances of various motor types is essential when servicing or installing such units b y d e n n i s b u s h a fter more than 100 years of use, with an ever increasing installed base, there are probably few aspects of an electric motor s usage and failure modes. Then our free engineering ebooks on electric circuits or electromagnetism are for you. Endofchapter questions reinforce the material covered in the book. Electric motor maintenance and troubleshooting, second edition explains in detail how all types of ac and dc motors work. The inverter is using pulse width modulation techniques to create threephase ac voltage output for the motor. As common as step motors are, however, there is much confusion about the differences between unipolar and bipolar step motors, and how constant current and constant voltage step motor drives work. Motor and motor control troubleshooting techniques. Save up to 80% by choosing the etextbook option for isbn. Motor capacitors store electrical energy for the motor to use.
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