Electric motor maintenance and troubleshooting, 2nd. Electrical training videos collection electrical maintenance, wires and electricity, motors, troubleshooting electrical circuit training. The result is premature failure and high maintenance costs. You can read online electric motor handbook here in pdf, epub, mobi or docx formats. Electric motor handbook the why, what and how of electric motor theory and practice 14. I believe it is the most comprehensive electric motor handbook available currently, extensively covering all types of motors. The annual growth rate of variable speed drives has been 9% in the last decade while the electric motor markets showed an average annual growth rate of 4% in the same time. The output torque of an electrical motor depends on the intensity of the rotor and stator magnetic fields and on their phase relation. Failure mode failure cause failure effect noisy operatio n worn or ben shaft t shaft alignmen t. When the load on the motor increases, the rotor speed decreases. A handbook was compiled to help industry identify opportunities for costeffective application of these motors. Among electric motors, induction motors are most used both for home appliances and in various industries 111. This chapter deals with the electric motor generalities. A motors rotor must turn slower than the rotating magnetic field in the stator to induce an electrical current in the rotor conductor bars and thus produce torque.
Arc automatic radio control 08 rpicon 20090710 17 02. I dont miss the stress of trying to get customers motor repaired in a timely manner. Plugin electric vehicle handbook for electrical contractors 5 plugin hybrid electric vehicles phevs phevs sometimes called extended range electric vehicles, or erevs use batteries to power an electric motor and use another fuel, such as gasoline or diesel, to power an ice or other propulsion source. Motor speed relationship the synchronous speed of an ac motor is the speed of the rotating magnetic field set up by the stator winding synchronous speed rpm 120 x frequency divided by the number of poles. Electric motors and drives fundamentals, types and applications third edition austin hughes senior fellow, school of electronic and electrical engineering, university of leeds amsterdam boston heidelberg london new york oxford paris san diego san francisco singapore sydney tokyo newnes is an imprint of. Power factor of a motor at full load varies between 0.
Grundfos motor book 22 grundfos motor book basic types of singlephase induction motors theoretically, a singlephase motor could be started by spinning the motor mechanically and applying power immediately. The phase relation between the rotor and stator magnetic field i. Electrical installation handbook users the electrical installation handbook is a tool which is suitable for all those who are interested in electrical plants. Electric motor maintenance and troubleshooting, 2nd edition kindle edition by hand, augie. Handbook of small electric motors pdf, handbook of small electric motors pdf, handbook of small electric motors pdf, 7 magnetic moment or magnetic dipole moment, 9 assembly, testing, painting, and packing, 18 magnetizers, magnetizing fixtures, and test equipment, 2 lamination, field, and housing geometry. Other members of the family are the directcurrent dc motor or generator, the induction motor or generator, and a number of derivatives of all these three. The rotor has salient poles and a cage so that it starts like an induction motor, and runs like a synchronous motor. The magnet is spun by a 3 phase ac motor with no rotor voltage 4. Motor won t start bearin failurg e shaf misalignment t incorrec couplint g belt misalignmen t incorrec belt tensiot n worn bearing nois operatioy n motor failur e additional detail o failurfs modee fos thosr componente o af motos sucr ahs bearings and shafts are include idn the applicabl chaptere os f this handbook. Publication ibdbr011 4 preface this, the fourth edition of the electric vehicle handbook has been created with. There are inevitably earlier workers in the field who laid down the basic intellectual tools for demonstrable ideas and devices. Best practice manual electric motors prepared for bureau of energy efficiency, under ministry of power, government of india hall no. Department of energy doe office of energy efficiency and renewable energy eere with support from the copper.
Products purchased from third party sellers are not guaranteed by the publisher for quality. 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. Straight from 1957, the lovable sears company shows us simpletons how to wire up the home to account for modern marvels of appliance utopia, like. Like its predecessors, the third edition of this book is intended primarily for nonspecialist users and students of electric motors and drives. Mechanical energy what is an electric motor an electric motor is a device converting electrical energy into mechanical energy usually a torque. Plugin hybrid electric vehicles phevs phevs sometimes called extended range electric vehicles, or erevs use batteries to power an electric motor and use another fuel, such as gasoline or diesel, to power an ice or other propulsion source. Recommended for upper level undergraduates, graduates, researchers and practitioners.
A factory can kick out a motor winding in minutes when making hundreds. Like its predecessors, the third edition of this book is intended primarily for non specialist users and students of electric motors and drives. Practitioners in the various applied sciences tend to view electric motors as generic devices for converting electrical to mechanical energy. Conventional motor bearings get fried by the electrical current passing through them. Preface the handbook of electric power calculationsprovides detailed stepbystep calculation procedures commonly encountered in electrical engineering. This tutorial will introduce the user to the fundamental electrical and mechanical principles of ac electric induction motor design and application. Energy efficient electric motor selection handbook photo credit. What is common to all the members of this family is that the basic. An introduction to electric motors stmicroelectronics. Reduced speed is provided down to about 50%, rated speed, but efficiency is low. Each electric motor training student will receive a detailed electric motor specification and check list to use to ensure that all their electric motor issues are addressed.
This has been true for electric motors, as well as for aircraft, telephones, incandescent lamps, and internal combustion engines. A low speed pedalassisted electric bicycle equipped with a motor which. Department of energy doe office of energy efficiency and. The text that was researched and compiled contains explanations of the motor parts, theory about electromagnetism and how current is used to make an electrical motor rotate. Other readers will always be interested in your opinion of. Electric vehicle application handbook for genesis sealedlead. Purchase practical electric motor handbook 1st edition. This unwanted induced current is also called eddy current. Small circulator pumps are for instance tested according to iec 60335251. Based upon the 2017 nec this comprehensive guide to electrical overcurrent protection and electrical design. The treatment throughout the handbook is practical with very little emphasis on theory. In developed countries, 10% of all induction motor power is converted in variable speed drives applications. Bodine electric company is a leading manufacturer of fractional horsepower gearmotors, motors, and motor speed controls.
In actual practice, however, all motors use automatic starting of some sort. An introduction to electric motors home stmicroelectronics. Along with the above electric motor handbook material. This is so because they have been traditionally fed directly from the threephase a.
Practical electric motor handbook 1st edition elsevier. Energy efficient electric motor selection handbook eep. Unit 16 electric motors washington state university. Use features like bookmarks, note taking and highlighting while reading electric motor maintenance and troubleshooting. This motor book will provide you with a wealth of information about electrical motors, how they work, what they can be used for, and so on. Electric vehicle application handbook for genesis sealed.
Handbook of electric motors pdf free download epdf. Practical electric motor handbook pdf by irving m gottlieb. Electric motor handbook mcgrawhill education access. A threephase electric motor, 100 hp 75 kw, iv poles, running at 100% of the rated power, with an original power factor of 0. Plugin electric vehicle handbook for electrical contractors 5 plugin hybrid electric vehicles phevs phevs sometimes called extended range electric vehicles, or erevs use batteries to power an electric motor and use another fuel, such as gasoline or diesel, to. Electric vehicle ev application handbook for genesis sealedlead batteries 4th. Covering topics ranging from motor energy and efficiency to computeraided design and equipment selection, this reference assists.
Electrical installation handbook protection, control and. Get motor rewinding procedure pdf file for free from our online library pdf file. Read online now motor rewinding procedure ebook pdf at our library. The handbook of electric power calculationsprovides detailed stepbystep calculation procedures commonly encountered in electrical engineering. Indian renewable energy development agency, core 4a, east court, 1st floor, india habitat centre, lodhi road, new delhi. Practical electric motor handbook irving gottlieb 173 pages. Electric motors for machines and mechanisms mit fab lab. There are two types of induction motors, one with wound type rotor, also called slipring motor and another one with squirrelcage rotor. Of the many good books on motors, such as electric motors and drives by hughes, none offer the engineering professional a tailored guide to motors taking into account their expertise. The fill solution consists of a mixture of deionized water and propylene glycol a nontoxic antifreeze. Improves power factor of the motor resulting in lesser current drawn and reduced cable losses key points to remember.
As this is a grundfos publication, it is only natural that we should pay special attention to motors used for pumps although much of the information contained within these pages. Single phase magnetic induction motor with exposed rotor and coil after all, motors are always designed to carry out specific tasks. By far the most commonly used ac motor is the induction motor. Many motor desingers use equivalent electric circuits in their design, and use fintite elements to obtain the values of the inductances, resistances, andor impedances in the motor. Premium efficiency motor selection and application guide i acknowledgments the premium efficiency motor selection and application guide and its companion publication, continuous energy improvement in motor driven systems, have been developed by the u. This tutorial will introduce the user to the fundamental electrical and mechanical principles of.
Electric motor training course certified electricity forum. Electric motors convert electrical energy into mechanical motion and are. The electric motor operation is based on the following points. Energyefficient electric motor selection handbook summary substantial reductions in energy and operational costs can be achieved through the use of energyefficient electric motors. But before we delve into detailed explanations of the world of electrical motors, we should perhaps spare a brief thought for the purpose of these motors. The worlds best machinery is skf equipped improve your products performance with skf.
Unit 16 electric motors objectives after studying this unit, the student will be able to state the purpose of an electric motor. Note this is the same password you use to save a configuration in avaya manager program. My original aim was to bridge the gap between specialist textbooks which are pitched at a level too academic for the average user and the more prosaic handbooks, which are full of useful detail but provide. An electric bicycle is a bicycle equipped with fully operable pedals and an electric motor of less than 750 watts.
Motor handbook 5 introduction this handbook of electric machines gives a highlevel orientation regarding the different kind of motors generators, incl. The student will also receive an electronic copy of the basics of ac drives and the basics of ac motors. Energy efficient electric motors selection handbook, department of energy, usa. As with the stator, also the rotor core consists of electrically laminated steel sheets. Finally, a comparison between different motors is presented. The handbook contains a wide array of topics and each topic is written by an authority on the subject.
Presenting current issues in electric motor design, installation, application, and performance, this second edition serves as the most authoritative and reliable guide to electric motor utilization and assessment in the commercial and industrial sectors. The skf solution is insocoat inverterduty bearings that require no rework prior to mounting. This final thesis will mostly be dedicated to induction motors but also to synchronous permanent magnet and reluctance motors. Download it once and read it on your kindle device, pc, phones or tablets. Practical electric motor handbook a premium engineers edge membership is required to view this book.
Three classes of electric bicycles have been established. The alternating current ac electric induction motor has been an industry workhorse for electromechanical conversion for over 100 years. At least one of the two magnetic field is generated by a solenoid carrying a current. What is common to all the members of this family is that the basic physical process involved in their operation is the conversion.
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