DOCSLIB.ORG

Qingdao YAHOTEC  PRECISION MACHINING- QINGAO YAHOTEC

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Qingdao YAHOTEC  PRECISION MACHINING- QINGAO YAHOTEC www.yahotec.com WORLD BEST [email protected] COIL WINDING SYSTEM PROVIDER Welcome to YAHOTEC 1. Company Outline TOTAL COIL WINDING SYSTEM PROVIDER R&D and Integrated Design Line & Machines Manufacturing Self-Machining for Precision tooling & parts In IN-HOUSE Factory Service & Maintenance 2. Company History 1991 03. Established Boosung Machinery Co. (Busan, KOREA) 1999 03. ‘Venture Enterprise’ certification by KOREA Government. 2000 11. Moved Head Office to New Factory (Kimhae, KOREA ) 2001 02. Change Company Name to YAHOTEC CO.,LTD. 06. ‘R&D Center’ certification by KOREA Industrial Technology Association (KOITA) 2002 06. Established Precision Machining Factory in QINGDAO CHINA 2006 01. ‘2006 KOREA Leading company’ selection by ‘Seoul Economic Daily’ 2008 01. Established Tianjin branch office 12. ‘Export bluechip enterprise’ certification by KOREA Small & Medium Business Administration (SMBA) 2011 03. The 20th Anniversary After Foundation 09. ‘Clean enterprise’ certification by The Korea Occupational Safety and Health Agency (KOSHA) 11. Awarded ‘USD 10million Export Prize’ at 48th Korea Annual Trade day Ceremony by The Korea International Trade Association (KITA) 3. Company Organization Head office ㅣ 40 persons Overseas factory ㅣ 65 persons Head Office Total ㅣ 105 persons YAHOTEC CO.,LTD. (Kimhae, Korea) QINDAO TIANJIN YAHOTEC R & D Center YAHOTEC (Qingdao, China) Integrated Design & (Tianjin, China) Full Line Manufacturing ☞ Special Tool & Parts ☞ Service & Maintenance A- Assembling plant 1st. Tool factory B- Machining plant 2nd. Tool factory C- Assembling plant D- Assembling plant 3. Company Organization 3-1 . Head office – Korea YAHOTEC R&D and MANUFACTURING 1. R & D Center for Winding Technology . R&D Center . Assembling plant “A” 2. Motor winding lines & machines Assembling & Manufacturing 3. In-house machining for Core parts . Assembling plant “C” . Assembling plant “D” . Assembling plant “D” . Machining plant “B” 3. Company Organization 3-2 . Overseas – Qingdao YAHOTEC PRECISION MACHINING- QINGAO YAHOTEC 1. Specialized Precision machining factory for Tools & parts - Precision Grinding process items - Precision Wire-cut EDM & Auto-machine items 2. Vertical Integrated machining system (Design – Precision Machining – Heat treatment – - Final Hand-finishing & Buffing – Measurement & Inspection) 3. Flexible manufacturing system & standardization of machining process for 'short-delivery ' & 'diversified and small-quantity’ order 4. Business Scope 1. Home Appliance Motor Winding System 2. Hermetic Compressor Motor Winding System TOTAL 3. Industrial Motor & Generator Winding System COIL WINDING 4. Alternator & Hybrid / Electronic Car Motor Winding System SYSTEM 5. BLDC Motor Winding System 6. DC Motor Winding System 7. Other Equipments associated with Motor Winding Special tool & Precision parts for Coil Winding Line Service & Maintenance for Coil Winding Line 5. CUSTOMERS DESCRIPTION COMPANY CUSTOMERS Home Appliance & Hermetic SAMSUNG Electric, LG Electric, DAEWOO Motor, 33 Compressor Motor OHSUNG , KITURAMI Boiler, HANIL Electric etc HYUNDAI Heavy Industries, HYOSUNG, Industrial Motor & Generator 6 LG-OTIS, THYSSEN KRUPP Elevator etc Korea S&T MOTIVE (Hybrid), DELPHI KOREA, Alternator & Car Motor 6 DENSO-POONGSUNG, HALLA CLIMATE CONTROL CORP. etc SAMSUNG Electric, LGETA, HAIER, , GMCC, GRAND, Home Appliance & Hermetic 18 HUAYI, BROAD-OCEAN, JIAXIPERA , XINNONG, Compressor Motor CHULAN, MEIZHI, LIFENG, HAUNGSHI-ABORL etc China Industrial Motor & Generator 1 WILO Alternator & Car Motor 5 SIEMENS, TAIFU, RYOBI, JINXIN, WUXI SUSUN Japan Home Appliance Motor 2 NEG, MIYAKO Home Appliance & Hermetic LGEIL, MARATHON, LAWKIM(Godrej), MAJESTIC, India 5 Compressor Motor ELGI Home Appliance Motor 1 GEMCO (Egypt) Others Industrial Motor & Generator 2 LGETH (Thailand) , TPSIE (Algeria) TOTAL 81 6. Main Performance 6-1 . Recipro Compressor Motor Winding Line 6. Main Performance 6-2. Rotary Comp. Motor Winding Line 6. Main Performance 6-3. Home Appliance Motor Winding - Fan, Washing Motor etc. 6. Main Performance 6-4. Industrial Motor Winding- Pump, Forklift , Elevator Motor etc 6. Main Performance 6-5 . BLDC (Brushless DC) Motor Winding 6. Main Performance 6-6. Armature DC Motor Winding 6. Main Performance 6-7. ALTERNATOR Motor Winding 6. Main Performance 6-8. Hybrid Car Motor Winding 6. Main Performance 6-9. Electric Car Motor Winding 6. Main Performance 6-10. Precision Tools & Parts 6. Main Performance 6-10. Automatic Winding Line Delivery list - KOREA NATION CUSTOMER DESCRIPTION APPLICATION Q'TY STATOR WINDING LINE RECIPRO COMPRESSOR FOR REFRIGERATOR 3 LG ELECTRONICS STATOR WINDING LINE ROTARY COMPRESSOR FOR AIR CONDITIONER 2 STATOR WINDING LINE RECIPRO COMPRESSOR FOR REFRIGERATOR 2 SAMSUNG ELECTRONICS BLDC LINE RECIPRO COMPRESSOR FOR REFRIGERATOR 4 STATOR WINDING LINE WASHING MACHINE MOTOR 2 DAEWOO MOTOR STATOR WINDING LINE FAN MOTOR FOR AIR CONDITIONER 2 STATOR WINDING LINE(TOOLING) INDUSTRIAL MOTOR 1 HYUNDAI HEAVY INDUSTRIES STATOR WINDING LINE INDUSTRIAL MOTOR 2 HYOSUNG HEAVY INDUSRIES STATOR WINDING LINE INDUSTRIAL MOTOR 1 SPG STATOR WINDING LINE GEARED MOTOR 2 SPM STATOR WINDING LINE FAN MOTOR FOR AIR CONDITIONER 3 CHUNGSUK STATOR WINDING LINE PUMP MOTOR FOR BOILER 6 KOREA PURETEC STATOR WINDING LINE PUMP MOTOR FOR BOILER 1 SHINHANIL STATOR WINDING LINE PUMP MOTOR FOR BOILER 1 POWERTEC STATOR WINDING LINE PUMP MOTOR FOR BOILER 2 OHSUNG STATOR WINDING LINE FAN MOTOR 4 DENSO-POONGSUNG ALTERNATOR WINDING LINE ALTERNATOR FOR CAR 1 GGM STATOR WINDING LINE PUMP MOTOR FOR BOILER 3 NAMDONG STATOR WINDING LINE FAN MOTOR 1 GGM STATOR WINDING LINE GEARED MOTOR 1 PRESTOLITE ASIA STATOR WINDING LINE FORK LIFT STATOR 2 DONGYANG ELEVATOR STATOR WINDING LINE(TOOLING) MOTOR FOR ELEVATOR 1 S&T MOTIVE STATOR WINDING LINE HYBRID & ELECTRIC MOTOR 3 HALLR CLIMATE CONTROL CORP. STATOR WINDING LINE CAR CLIMATE MOTOR 1 20 Customers 51 Lines 6. Main Performance 6-11. Automatic Winding Line Delivery list – Foreign Country NATION CUSTOMER DESCRIPTION APPLICATION Q'TY ARMATURE WINDING LINE ARMATURE FOR CAR 2 STATOR WINDING LINE FAN MOTOR 3 NEG JAPAN ALTERNATOR WINDING LINE ALTERNATOR FOR CAR 2 STATOR WINDING LINE WASHING MACHINE MOTOR 1 MIYAKO STATOR WINDING LINE FAN MOTOR 1 STATOR WINDING LINE RECIPRO-COMPRESSOR FOR REFRIGERATOR 3 SAMSUNG ELECTRONICS (SUZHOU) BLDC LINE RECIPRO COMPRESSOR FOR REFRIGERATOR 1 ARMATURE WINDING LINE DC MOTOR FOR VACUUM CLEANER 2 LG ELECTRONICS(TIANJIN) STATOR WINDING LINE ROTARY COMPRESSOR FOR AIR CONDITIONER 2 CHUNLAN STATOR WINDING LINE ROTARY COMPRESSOR FOR AIR CONDITIONER 2 STATOR WINDING LINE ROTARY COMPRESSOR FOR AIR CONDITIONER 2 HAIER STATOR WINDING LINE RECIPRO COMPRESSOR FOR REFRIGERATOR 5 WILO STATOR WINDING LINE PUMP MOTOR 1 STATOR WINDING LINE FAN MOTOR FOR AIR CONDITIONER 5 CHINA BROAD OCEAN MOTOR STATOR WINDING LINE WASHING MACHINE MOTOR 4 GMCC STATOR WINDING LINE ROTARY COMPRESSOR FOR AIR CONDITIONER 2 AMCC STATOR WINDING LINE RECIPRO-COMPRESSOR FOR REFRIGERATOR 1 LIFENG STATOR WINDING LINE WASHING MACHINE MOTOR 1 HUANGSHI ABORL STATOR WINDING LINE RECIPRO-COMPRESSOR FOR REFRIGERATOR 2 JIN XIN ALTERNATOR WINDING LINE ALTERNATOR FOR CAR 1 GRAND STATOR WINDING LINE RECIPRO-COMPRESSOR FOR REFRIGERATOR 2 CHIGO STATOR WINDING LINE ROTARY COMPRESSOR FOR AIR CONDITIONER 2 JIAXIPERA STATOR WINDING LINE RECIPRO-COMPRESSOR FOR REFRIGERATOR 1 INDIA LAWKIM STATOR WINDING LINE RECIPRO-COMPRESSOR FOR REFRIGERATOR 1 EGYPT GEMCO STATOR WINDING LINE WASHING MACHINE MOTOR 1 ALGERIA TPSIE STATOR WINDING LINE PUMP MOTOR 1 19 Customers 52 Lines 6. Main Performance 6-12. Machine Production Quantity as of 2013 JULY 7. YAHOTEC Remote Assistance System (Y.R.A) YAHOTEC Real time check & solve problems Y.R.A Trouble detection, & request for support CUSTOMER Y.R.A Whenever! Wherever! Customers contact to YAHOTEC in Real Time Y.R.A Using the internet, Urgent Technical support With Y.R.A 8. YAHOTEC’s Unique Strength Trouble-free Machine Korea NO. 1 Market Share 1. => Customer satisfaction (45companies) 23years Technology Know-how & Manufacture & provide 950 types of machines & 1800 2. Experience types of Tools as of 2013 JULY Price Competitiveness Favorable Reputation => Continuous compared with high-quality 3. Repeat Orders ‘ Prompt Maintenance service the Customer is first’ Business Policy 4. including Urgent AS & Remote Assistance Stable supply In-house Machining 5. of high-quality Tools and Repair parts For Precision tool & parts Specialized Company for www.yahotec.com Coil Winding technology of Electric Motor [email protected] THANK YOU.
Load more

Recommended publications
  • Report of Contributions
    MT25 Conference 2017 - Timetable, Abstracts, Orals and Posters Report of Contributions https://indico.cern.ch/e/MT25-2017 MT25 Conferenc … / Report of Contributions 3D Electromagnetic Analysis of Tu … Contribution ID: 5 Type: Poster Presentation of 1h45m 3D Electromagnetic Analysis of Tubular Permanent Magnet Linear Launcher Tuesday, 29 August 2017 13:15 (1h 45m) A short stroke and large thrust axial magnetized tubular permanent magnet linear launcher (TPMLL) with non-ferromagnetic rings is presented in this paper. Its 3D finite element (FE) models are estab- lished for sensitivity analyses on some parameters, such as air gap thickness, permanent magnet thickness, permanent magnet width, stator yoke thickness and four types of permanent magnet material, ferrite, NdFeB, AlNiCO5 and Sm2CO17 are conducted to achieve greatest thrust. Then its 2D finite element (FE) models are also established. The electromagnetic thrusts calculated by 2D and 3D finite element method (FEM) and got from prototype test are compared. Moreover, the prototype static and dynamic tests are conducted to verify the 2D and 3D electromagnetic analysis. The FE software FLUX provides the interface with the MATLAB/Simulink to establish combined simulation. To improve the accuracy of the simulation, the combined simulation between the model of the control system in Matlab/Simulink and the 3D FE model of the TPMLL in FLUX is built in this paper. The combined simulation between the control system and the 3D FE modelof the TPMLL is built. A prototype is manufactured according to the final designed dimensions. The photograph of the developed TPMLL prototype with thrust sensor and the magnetic powder brake as the load are shown.
    [Show full text]
  • Brno University of Technology Vysoké Učení Technické V Brně
    BRNO UNIVERSITY OF TECHNOLOGY VYSOKÉ UČENÍ TECHNICKÉ V BRNĚ FACULTY OF MECHANICAL ENGINEERING FAKULTA STROJNÍHO INŽENÝRSTVÍ INSTITUTE OF SOLID MECHANICS, MECHATRONICS AND BIOMECHANICS ÚSTAV MECHANIKY TĚLES, MECHATRONIKY A BIOMECHANIKY ENERGY HARVESTING POWER SUPPLY FOR MEMS APPLICATIONS NEZÁVISLÝ ELEKTRICKÝ ZDROJ PRO MEMS APLIKACE DOCTORAL THESIS DIZERTAČNÍ PRÁCE AUTHOR Ing. Jan Smilek AUTOR PRÁCE SUPERVISOR doc. Ing. Zdeněk Hadaš, Ph.D. ŠKOLITEL BRNO 2018 ABSTRACT This thesis deals with the development of an independent power source for modern low-power electronic applications. Since the traditional approach of powering small applications by means of primary or secondary batteries lowers the user comfort of using such a device due to the necessary periodical maintenance, the novel power source is using the energy harvesting ap- proach. This approach means that the energy is scavenged from the ambience of the powered application and converted into electricity in order to satisfy the power requirements of the new- est MEMS electrical devices. The target applications for the new energy harvesting device are seen in wearable and biomed- ical electronic devices. That places challenging requirements on the energy harvester, as it has to harvest sufficient energy from the ambience of human body, while fulfilling practical size and weight constraints. After the preliminary requirements setting and analyses of possible sources of energy a kinetic energy harvesting principle is selected to be employed. A series of measurements is then con- ducted to obtain and generalize the kinetic energy levels available in the human body during various activities. A novel design of kinetic energy harvester is then introduced and developed into the form of a functional prototype, on which the actual performance is evaluated.
    [Show full text]
  • Design and Fabrication of Moto Autor
    A. John Joseph Clinton Int. Journal of Engineering Research and Applications www.ijera.com ISSN : 2248-9622, Vol. 5, Issue 1( Part 4), January 2015, pp.07-16 RESEARCH ARTICLE OPEN ACCESS Design and Fabrication of Moto Autor A. John Joseph Clinton*, P. Rajkumar** *(Department of Mechanical Engineering, Chandy College of Engineering, Affliated to Anna University- Chennai, Tuticorin-05) ** (Department of Mechanical Engineering, Chandy College of Engineering,Affliated to Anna University- Chennai, Tuticorin-05) ABSTRACT This project is based on the need for the unconventional motor. This work will be another addition in the unconventional revolution. Our project is mainly composed of design and fabrication of the ―MOTO AUTOR‖ which is a replacement of conventional motors in many applications of it. This motoautor can run on its own without any traditional input for fuelling it except for the initiation where permanent magnets has to be installed at first. It is a perpetual motion system that can energize itself by taking up the free energy present in the nature itself. This project enables to motorize systems with very minimal expenditure of energy. Keywords–Perpetual motion, Free energy conversion, Unconventional motor, Magnetic principles, Self- energizing I. INTRODUCTION Perhaps the first electric motors were In normal motoring mode, most electric motors simple electrostatic devices created by the Scottish operate through the interaction between an electric monk Andrew Gordon in the 1740s. The theoretical motor's magnetic field and winding currents to principle behind production of mechanical force by generate force within the motor. In certain the interactions of an electric current and a magnetic applications, such as in the transportation industry field, Ampère's force law, was discovered later with traction motors, electric motors can operate in by André-Marie Ampère in 1820.
    [Show full text]
  • Unit I – Electric Drives and Traction Part - a 1
    UNIT I – ELECTRIC DRIVES AND TRACTION PART - A 1. List the advantages and disadvantages of electric traction. (Nov – 2017/Nov - 2014) Advantages It has great passenger carrying capacity at higher speed. High starting torque. Less maintenance cost. Cheapest method of traction. Disadvantages High capital cost. Problem of supply failure. Additional equipment is required for achieving electric braking and control. 2. Define gear ratio. (Nov - 2017) Gear ratio = (Input Speed)/ (Output Speed) = (Diameter of output gear) / (Diameter of input gear) 3. What are the merits and demerits of DC system of track electrification? (May - 2017) Merits Better torque-speed characteristic. Low maintenance cost. The weight of d.c motor per H.P is less in comparison to a.c motors. Efficient regenerative braking as compared to single phase a.c series motors. De – merits The overall cost is more because of heavy cost of additional substation equipment This system is preferred for suburban services and road transport where there are frequent stops and distance is less. 4. Give the expression for total tractive effort. (Nov- 2016/May – 2014/May 2012) Total tractive effort required to run a train on track = (Tractive effort to produce acceleration + Tractive effort to overcome effect of gravity + Tractive effort to overcome train resistance) FT = Fa + Fg +Fr 5. What are the recent trends in electric traction? (Nov – 2016/Nov -2014/May - 2014) Magnetic levitation, Maglev (Or) Magnetic suspension and Pseudo - Levitation 6. What are the factors governing scheduled speed of a train? (May - 2016) Acceleration and braking retardation Maximum or Crest speed Stopping time or Duration of stop 7.
    [Show full text]
  • Robotized Stator Cable Winding
    Robotics and Computer Integrated Manufacturing 53 (2018) 197–214 Contents lists available at ScienceDirect Robotics and Computer Integrated Manufacturing journal homepage: www.elsevier.com/locate/rcim Robotized stator cable winding T ⁎ Erik Hultmana,b, , Mats Leijona,c a Division for Electricity, Uppsala University, Box 534, 751 21 Uppsala, Sweden b Seabased Industry AB, Verkstadsgatan 4, 453 30 Lysekil, Sweden c Department of Electrical Engineering, Chalmers University of Technology, 412 96 Gothenburg, Sweden ARTICLE INFO ABSTRACT Keywords: Automated stator winding assembly has been available for small and medium sized conventional electric ma- Cable winding chines for a long time. Cable winding is an alternative technology developed for medium and large sized ma- Stator assembly chines in particular. In this paper we present, evaluate and validate the first fully automated stator cable winding Robot automation assembly equipment in detail. A full-scale prototype stator cable winding robot cell has been constructed, based Flexible production on extensive previous work and experience, and used in the experiments. While the prototype robot cell is Powerformer adapted for the third design generation of the Uppsala University Wave Energy Converter generator stator, the Wave energy converter winding method can be adapted for other stator designs. The presented robot cell is highly flexible and well prepared for future integration in a smart production line. Potential cost savings are indicated compared to manual winding, which is a backbreaking task. However, further work is needed to improve the reliability of the robot cell, especially when it comes to preventing the kinking of the winding cable during the assembly. 1. Introduction alternately pushing and pulling the cable through slot holes in the stator section and between each other.
    [Show full text]
  • 8.1 DC Motor
    IV B. Tech I semester (JNTUH-R15) Prepared By Ms. Lekha Chandran, Assistant Professor Unit-1 ELECTRIC DRIVE ELECTRICAL ENERGY It is flexible Easilyavailable Can be converted to other forms of energy. Can be easily transported to required location Economical Mature technology Saves manual labor in industry and domestic applications UTILISATION Electrical energy is used in variousapplications: 1. Electric Drives; DC and ACmotors 2. Electric heating and welding 3. Illumination 4. Electric Traction 5. Electric Vehicles DC MOTOR • The direct current (dc) machine can be used asa motor or as agenerator. • DC Machine is most often used for amotor. • The major advantages of dc machines are theeasy speed and torqueregulation. • However, their application is limited to mills, mines and trains. As examples, trolleys and underground subway cars may use dcmotors. • In the past, automobiles were equipped withdc dynamos to charge theirbatteries. DC MOTOR • Eventoday the starter is a series dc motor • However, the recent development of power electronics has reduced the use of dc motorsand generators. • The electronically controlled ac drives aregradually replacing the dc motor drives infactories. • Nevertheless, a large number of dc motors arestill used by industry and several thousand are sold annually. CONSTRUCTI ON DC MACHINE CONSTRUCTION General arrangement of a dc machine DC MACHINES • Thestator of the dc motor has poles, which are excited by dc current to produce magnetic fields. • Inthe neutral zone, in the middle between the poles,commutating poles are placed to reduce sparking of the commutator. The commutating poles are supplied by dccurrent. • Compensating windings are mounted on the main poles. These short-circuitedwindings damp rotor oscillations.
    [Show full text]
  • Control Or Regulation of Electric Motors, Electric Generators Or Dynamo-Electric Converters; Controlling Transformers, Reactors Or Choke Coils
    CPC - H02P - 2017.08 H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS Definition statement This place covers: Arrangements for • starting, • regulating, • electronically commutating, • braking, or otherwise controlling: • motors, • generators, • dynamo-electric converters, clutches, brakes, gears, • transformers, • reactors or choke coils, of the types classified in the relevant subclasses, e.g. H01F, H02K. References Limiting references This place does not cover: Arrangements for merely turning on an electric motor to drive a machine A47L 9/28, F02N 11/00 or device, e.g.: vacuum cleaner, vehicle starter motor Hybrid vehicle, conjoint control, arrangements for mounting B60K, B60W Arrangements for controlling electric generators for charging batteries H02J 7/00 Arrangements for starting, regulating, electronically commutating, H02N braking, or otherwise controlling electric machines not otherwise provided for, e.g. machines using piezo-electric effects Informative references Attention is drawn to the following places, which may be of interest for search: Curtain A47H Hand hammers, drills B25D 17/00 Printers B41J Power steering B42D 5/00 Heating cooling ventilating B60H 1/00 Electrically propelled vehicles, current collector, maglev B60L Lighting B60Q 1/00 Electric circuits for vehicle B60R, H02J Wiper control B60S 1/00 Marine B63H 1 H02P (continued) CPC - H02P - 2017.08 Elevator B66B Washing machines, household appliances D06F 39/00 Sliding
    [Show full text]
  • James D Widmer
    SEGMENTAL ROTOR SWITCHED RELUCTANCE MACHINES FOR USE IN AUTOMOTIVE TRACTION James D Widmer A thesis submitted for the degree of Doctor of Philosophy © Newcastle University 2013 School of Electrical and Electronic Engineering Abstract Abstract This thesis explores the development of the Segmental Rotor Switched Reluctance Machine (SRM) to provide electric vehicle traction. This electrical machine, which has a topology distinct from the conventional SRM and has been previously shown to offer enhanced torque density, is selected based on its potential to offer a low cost, sustainable alternative to today’s state-of-the-art electric vehicle traction motors. With the launch, as long ago as 1997, of the Toyota Prius Hybrid Electric Vehicle and of the more recent Nissan Leaf Electric Vehicle in 2010, volume produced vehicle traction drives are an established reality. However hurdles remain in order to reduce the cost of electric and hybrid electric vehicles so that they become cost-competitive with more conventional vehicles. From an electrical machine perspective, one clear cost driver stands out; the rare-earth metals which form the key ingredient in today’s class leading electrical machines. These materials are both expensive (>100USD/kg) and, as was seen in 2011 / 2012, subject to significant price volatility. Equally the mining and refinement of rare-earth materials, such as Neodymium, Dysprosium and Samarium, has been shown to have a much higher environmental footprint than that of the other materials typically used in electrical machines. Beyond the elimination of rare-earths, the thesis looks to further improve the sustainability and cost of the Segmental Rotor SRM.
    [Show full text]
  • Essentials of Rotating Electrical Machines
    Essentials of Rotating Electrical Machines All electrical machines are variations on a common set of fundamental principles, which apply alike to dc and ac types, to generators and motors, to steady-state and transient conditions. Machine Construction Rotating machines 1. Common Features: Fig. 1.1 Common Geometrical Configuration of all Stator: is the outer stationary member. Rotor: is the inner rotating member mounted on bearings fixed to stationary member. Stator and rotor: carry concentric cylindrical ferromagnetic cores made of laminated steel sheets to give optimum electrical and magnetic characteristics. Air-gap: Coupling between electrical and mechanical systems is through the electro- magnetic field in the air-gap Flux φ: is the common flux crosses from one core to another through the air- gap, causing alternate N & S poles on the stator and on the rotor. For electromechanical energy conversion, the two cores move relative to each other. The cylindrical surface can be continuous (neglect slot openings) or may have salient poles Conductors run parallel to the axis of the cylinders. They are connected in coils to form the machine windings. Various types of machines differ basically in: ¾ The distribution of conductors forming the windings ¾ Whether the two members have continuous cores or salient poles ¾ Operation of the machine which depends on the excitation applied to its windings. 1. Types of winding: The windings of electrical machines are of two main types: Coil Winding: Fig. 1.2a Fig. 1.2b For dc excitation: They are made of concentrated coils Similarly Placed on all poles, and connected together by series or parallel connection into a single circuit.
    [Show full text]
  • A Robot-Based Winding-Process for Flexible Coil Production
    ROBOT-BASED WINDING-PROCESS FOR FLEXIBLE COIL PRODUCTION Jörg Franke, Andreas Dobroschke Chair for Manufacturing Automation and Production Systems FAPS Friedrich-Alexander-University Erlangen-Nuremberg, Germany Abstract: Recent technological and market-driven for manufacturing automation and production systems of developments are challenging for the winding the University-Erlangen-Nuremberg. The method is industry. Highly customized winding products, based on an industrial delta-robot which places the wire smaller lot sizes and quantities in conjunction with on a programmable trajectory (see also [3]). By using the the necessity for a higher economic efficiency are robot for wire placement new possibilities for a flexible requirements that can not be met sufficiently with process design arise. currently available winding technology. Highly productive automated winding systems are not II. STANDARD WINDING TECHNIQUES AGAINST flexible enough and manual labour causes high THE BACKGROUND OF CURRENT TRENDS product costs. For reducing the amount of manual process steps and increasing the flexibility the concept “Coil winding” can be defined as “joining of a core with for an alternative winding method was designed at magnetic wire by a continued bending around the core”. the chair for Manufacturing Automation and For this a rotational movement between the core and the Production Systems FAPS. Conventional winding wire is required. In order to achieve a helical structure, methods generate the winding movements by joining an additional feed motion is necessary. The need for a combination of different axis under the aid of winding products in a wide range of applications has led special wire-guiding elements. The new approach to various coil constructions and hence to different realizes the wire placement only by moving a guiding winding techniques.
    [Show full text]
  • Rotating Electrical Machines Rotating Electrical Machines
    Rotating Electrical Machines Rotating Electrical Machines Educational Training Equipment for the 21st Century Educational Training Equipment for the 21st Century Bulletin 120H H-REM-120-CM-MP H-REM-120-CM-MP Universal Laboratory Machine Introduction Universal Laboratory Machine Computer Data Logging The Hampden MODEL H-REM-120CM-MP In order to demonstrate closed loop control, Universal Laboratory Machine, which can the H-REM-120CM-MP-CDLC Universal operate in a variety of AC and DC modes, is Laboratory Machine with Computer Data available to meet these needs and serve as Logging and Control provides a console an experimental platform of a wide variety of fully computerized for control and data electrical machine studies, including com- acquisition. Through the use of relays and puter analysis and control. digital instrumentation, the student can control all aspects of the Universal Machine In recent years the pattern of experimental in any mode of operation available. work on electrical machines in Technical Schools and Institutes, College and Univer- Hampden provides the H-REM-120CM-MP- sity laboratories has changed. More empha- CDLC as a fully configured turnkey, comput- Unit shown is sis is now placed upon the common erized machine learning center. The 220/308 V.AC 50Hz Unit shown is Hampden H-REM-LTCS Laptop Computer electromagnetic principles of machines, 120/208 V.AC 60Hz System provides the laptop computer, upon their dynamic performance and their cables, software and courseware as a use as elements in control systems. There is seamless package to make the curriculum also a growing tendency to introduce in the development process painless for the later stages of courses a more generalized instructor.
    [Show full text]
  • Theory, Construction, and Operation
    PART I THEORY, CONSTRUCTION, AND OPERATION 1 CHAPTER 1 PRINCIPLES OF OPERATION OF SYNCHRONOUS MACHINES The synchronous electrical generator (also called alternator) belongs to the family of electric rotating machines. Other members of the family are the direct- current (dc) motor or generator, the induction motor or generator, and a number of derivatives of all these three. What is common to all the members of this fam- ily is that the basic physical process involved in their operation is the conversion of electromagnetic energy to mechanical energy, and vice versa. Therefore, to comprehend the physical principles governing the operation of electric rotating machines, one has to understand some rudiments of electrical and mechanical engineering. Chapter 1 is written for those who are involved in operating, maintaining and trouble-shooting electrical generators, and who want to acquire a better under- standing of the principles governing the machine’s design and operation, but who do not have an electrical engineering background. The chapter starts by introducing the rudiments of electricity and magnetism, quickly building up to a description of the basic laws of physics governing the operation of the syn- chronous electric machine, which is the type of machine all turbogenerators belong to. 1.1 INTRODUCTION TO BASIC NOTIONS ON ELECTRIC POWER 1.1.1 Magnetism and Electromagnetism Certain materials found in nature exhibit a tendency to attract or repeal each other. These materials, called magnets, are also called ferromagnetic because they include the element iron as one of their constituting elements. Operation and Maintenance of Large Turbo Generators, by Geoff Klempner and Isidor Kerszenbaum ISBN 0-471-61447-5 Copyright 2004 John Wiley & Sons, Inc.
    [Show full text]