Citations with the tag: ELECTRIC generators -- Alternating current

Results 51 - 100

  • Prestolite posts $27.6M net income for 1Q.
    Kosdrosky, Terry // Crain's Detroit Business; 5/17/2004, Vol. 20 Issue 20, p20 

    Ann Arbor, Michigan-based Prestolite Electric Holding Inc. reported improved first-quarter sales and net income from last year, although operating income fell because of the cost of selling the company. Prestolite, which manufactures alternators and starter motors, switched private-equity owners...

  • Evaluaci�n de la protecci�n del est�tor de generadores sincr�nicos ante fallas a tierra por medio del m�todo de inyecci�n subarm�nica.
    Giraldo, Luis C.; Mora-Fl�rez, Juan J.; Olguin, Gabriel // Ingenier�a y Competitividad; Jun2008, Vol. 10 Issue 1, p21 

    In this paper, we make an evaluation of the complete ground-fault protection of the stator of synchronous generators by use of the subharmonic injection method. Firstly, we describe two approaches for the complete protection of the stator: the third harmonic method and the method of subharmonic...

  • Contributions to the tridimensional analysis of electromagnetic field in claw-poles alternator.
    Barz, Cristian; Oprea, Constantin // Journal of Electrical & Electronics Engineering; Jun2010, Vol. 3 Issue 1, p29 

    The paper presents the tridimensional analysis of electromagnetic field of a claw poles alternator, in whose construction, non-magnetic material has been used, such as aluminum, that form the rings in the rotor's structure. This structure aims to establish lower levels of saturation in the...

  • Actual configurations of wind power conversion systems and further aspects of wind turbines.
    Prutianu, Florin; Popescu, Viorel // Journal of Electrical & Electronics Engineering; Jun2010, Vol. 3 Issue 1, p167 

    This paper deals with the actual stages of wind turbines. Wind turbines have in their composition doubly fed induction generators (DIFG) or permanent magnet synchronous generator (PMSG). In this paper some configurations of wind power conversion systems are presented and some problems from wind...

  • Sinhrona generatora stabilitates paaugstina�ana arierosmes sprieguma regule�anas metodi.
    Gurovs, Nikolay; Petrichenko, Romans // Power & Electrical Engineering; 2010, Issue 26, p73 

    Problem of power supply system's safety and quality of control has taken on special significance due to development and complication of electropower systems. The effective decision of this problem is prevented by deficient controllability with anticrush automatics existing devices in emergency...

  • Problems Related to Excitation Winding Surface Temperature Measurement of a Salient Pole Synchronous Generator in Rotation.
    Hanic, Zlatko; Vrazic, Mario; Stipetic, Stjepan // Journal of Energy & Power Engineering; May2012, Vol. 6 Issue 5, p826 

    This paper addresses some of the problems related to direct surface temperature measurement of a salient pole synchronous generator excitation winding in rotation. Excitation winding temperature is used for determining the dynamic limit in a PQ diagram. The paper also addresses procedures of...

  • Analytical Prediction of Inductances of Slotless Axial-Flux Permanent Magnet Synchronous Generator Using Quasi-3D Method.
    Pradikta, A.; Dahono, P. A. // International Journal on Electrical Engineering & Informatics; 2009, Vol. 1 Issue 2, p115 

    The article discusses the analytical prediction method used for the inductions of slotless axial-flux permanent magnet (AFPM) synchronous generator using Quasi-three dimensional (3D) method. It states that Quasi-3D method divides the AFPM generator geometry into various computation sections and...

  • Battery Condition and Alternator Tester.
    Gamauf, Mike; Swickard, James E. // Business & Commercial Aviation; Nov2005, Vol. 97 Issue 5, p152 

    This article reports that VDC Electronics Inc. is now offering its BatteryMINDer, BACT model 12104, battery and alternator condition tester as a separate retail product from its line of pulse-mode battery chargers, maintainers and desulphators. The compact BACT attaches to the battery terminals,...

  • Probe of the Si nanoclusters to Er3+ energy transfer dynamics by double-pulse excitation.
    Falconieri, M.; Borsella, E.; De Dominicis, L.; Enrichi, F.; Franz�, G.; Priolo, F.; Iacona, F.; Gourbilleau, F.; Rizk, R. // Applied Physics Letters; 8/8/2005, Vol. 87 Issue 6, p061109 

    In this letter the dynamics of the energy transfer (ET) process from amorphous silicon nanoclusters (Si-nc) to Er3+ ions is investigated in co-doped silica glasses. Using a double pulse setup the recovery time of the sensitizing effect is monitored and direct evidence is found for the occurrence...

  • Combined Optimal Sizing and Control for a Hybrid Tracked Vehicle.
    Yuan Zou; Fengchun Sun; Xiaosong Hu; Guzzella, Lino; Peng, Huei // Energies (19961073); Nov2012, Vol. 5 Issue 11, p4697 

    The optimal sizing and control of a hybrid tracked vehicle is presented and solved in this paper. A driving schedule obtained from field tests is used to represent typical tracked vehicle operations. Dynamics of the diesel engine-permanent magnetic AC synchronous generator set, the lithium-ion...

  • High-Output Alternator.
    Clemans, John // MotorBoating; Mar2004, Vol. 193 Issue 3, p126 

    Introduces the Eco-Tech T-305-I alternator for boats from API Marine. Description of the alternator; Contribution of the patented magnet hybrid rotor design to the alternator's strength; Electric output; Costs.

  • Charging systems.
    Wilson, Marilyn // Fleet Owner; Jan2001, Vol. 96 Issue 1, p64 

    Deals with the design changes made in the charging systems and alternators of heavy-duty trucks due to increased power demands. Features of an alternator to be introduced by Robert Bosch company; Basic avenues to making 42 volt systems; Information on an alternator technology being developed by...

  • Keep your alternators out of trouble.
    Baxter, John // Commercial Carrier Journal; Oct2009, Vol. 166 Issue 10, p30 

    The article describes several alternators technology for trucks. Explanation is offered on how to choose alternators that will have the correct output characteristics. Suggestions are offered on alternator maintenance, including assessments of batteries, cables and connections in the charging...

  • A Z-Source Inverter for an Integrated Starter Alternator.
    HANGIU, Radu-Petru; FILIP, Andrei-Toader; MARTIS, Claudia Steluta; BIR�, K�roly �goston // Journal of Computer Science & Control Systems; 2012, Vol. 5 Issue 2, p15 

    This paper presents an overview of an integrated starter alternator system used in mild hybrid electric vehicles. Inverter configurations that are used in HEV are assessed with an emphasis on the novel Z- source inverter topology. The final part presents a simulation model of a bi-directional...

  • Alternator Repairs: Plane Power Tops.
    HANGIU, Radu-Petru; FILIP, Andrei-Toader; MARTIS, Claudia Steluta; BIR�, K�roly �goston // Aviation Consumer; Feb2013, Vol. 43 Issue 2, p20 

    The article offers information regarding importance of troubleshooting and discusses several aspects of aircraft alternators including their function, failure and replacement options. It mentions that a careful troubleshooting in case of failure of charging system of an aircraft saves money. It...

  • A Novel Maximum Power Point Tracking Control for Permanent Magnet Direct Drive Wind Energy Conversion Systems.
    Ying Zhu; Ming Cheng; Wei Hua; Wei Wang // Energies (19961073); May2012, Vol. 5 Issue 5, p1398 

    This paper proposes a novel optimal current given (OCG) maximum power point tracking (MPPT) control strategy based on the theory of power feedback and hill climb searching (HCS) for a permanent magnet direct drive wind energy conversion system (WECS). The presented strategy not only has the...

  • Joy Global adds Optidrive to underground mining equipment.
    Ying Zhu; Ming Cheng; Wei Hua; Wei Wang // Mining Engineering; Sep2010, Vol. 62 Issue 9, p58 

    The article features the Optidrive alternating current (ac) variable frequency drive (VFD) from Joy Mining Machinery. They can be used in underground mining equipment and as an option on the Stamler products of feederbreakers also being produced by the company. It states that the company brought...

  • The World Market for Electric Motors with Output Exceeding 37.5 w and AC Generators: A 2011 Global Trade Perspective.
    Parker, Philip M. // Global Trade Perspectives; 1/ 4/2010, pN.PAG 

    Several tables and graphs related to the 2011 global trade perspective on the market for electric motors with output exceeding 37.5 watts (w) and alternating current (ac) generators for countries in Africa, Asia, Europe, Latin America, North America and the Caribbean, Oceana, and the Middle East...

  • The World Market for AC Electric Motors with Output Exceeding 37.5 w: A 2011 Global Trade Perspective.
    Parker, Philip M. // Global Trade Perspectives; 1/ 4/2010, pN.PAG 

    Several tables and graphs related to the 2011 global trade perspective on the market for alternating current (ac) electric motors with output exceeding 37.5 watts (w) for countries in Africa, Asia, Europe, Latin America, North America and the Caribbean, Oceana, and the Middle East are presented.

  • The World Market for AC Electric Generators: A 2011 Global Trade Perspective.
    Parker, Philip M. // Global Trade Perspectives; 1/ 4/2010, pN.PAG 

    Several tables and graphs related to the 2011 global trade perspective for alternating current (ac) electric generators market for countries in Africa, Asia, Europe, Latin America, North America and the Caribbean, Oceana, and the Middle East are presented.

  • PLUG-IN VOLTMETER IS A JACK OF MANY TRADES.
    Parker, Philip M. // Light Plane Maintenance; Jul2012, Vol. 34 Issue 7, p9 

    The article focuses on the benefits and advantages of plug-in voltmeters in aircraft mechanics and maintenance. It mentions that plug-in voltmeters are essential in monitoring a plane's battery health. It notes that such voltmeters monitor over or undercharging of a plane's alternator. It states...

  • Improve your Alternator Charging System.
    COTE, JEFF // Pacific Yachting; Feb2013, Vol. 55 Issue 2, p69 

    The article offers suggestions on how to improve a boat's alternator charging system. It suggests ensuring there is minimum loss of energy produced by the alternator. It suggests reducing the wire length between the alternator and the battery using an external regulator. It suggests taking care...

  • APPLICATION OF WAVELET TRANSFORMS FOR ALTERNATOR STATOR FAULT LOCATION AND PROTECTION.
    KUMAR, M. NARENDRA; CHANDRA, K. ANIL // Journal of Theoretical & Applied Information Technology; 2010, Vol. 16 Issue 1/2, p77 

    This paper presents the novel approach in protection and detection techniques of Alternator stator winding from the earth faults which are simulated between 2% to 10% distance point from the alternator neutral, since the impedence at that distance is very high we can not detect or protect by...

  • al·ter·na·tor.
    KUMAR, M. NARENDRA; CHANDRA, K. ANIL // American Heritage Student Science Dictionary; 2009, p11 

    A definition of the term "alternator" is presented. Alternator is an electric generator that produces alternating current. The current reverses direction, back and forth, because the generator's coiled wire rotates rapidly within the magnetic field created by its two magnets, causing the charge...

  • Troubleshooting electrical alternators.
    KUMAR, M. NARENDRA; CHANDRA, K. ANIL // Fleet Equipment; May2009, Vol. 35 Issue 5, p9 

    The article offers tips in troubleshooting electrical alternators. It is helpful to test first the batteries before installing the alternator. Wire and battery cables should be inspected to ensure that are tight and free of corrosion. The fan and pulley should also be inspected so that the...

  • ADD AN AMMETER.
    Banse, Tim // MotorBoating; Aug2006, Vol. 198 Issue 2, p76 

    The article offers advice on the significance of installing an ammeter to motorboats. Ammeter measures how much current is being used by operating electrical equipment such as stereo, running lights, cabin lights, etc. It also indicates how much charging current is being generated by a...

  • Optimization of ultrasonic welding parameters for copper to copper joints using design of experiments.
    Elangovan, Sooriyamoorthy; Prakasan, K.; Jaiganesh, V. // International Journal of Advanced Manufacturing Technology; Nov2010, Vol. 51 Issue 1-4, p163 

    Ultrasonic welding is a solid-state joining process that produces joints by the application of high-frequency vibratory energy in the work pieces held together under pressure without melting. In electronic and automotive applications, copper wires are connected to the equipment...

  • Class 8 alternator.
    Elangovan, Sooriyamoorthy; Prakasan, K.; Jaiganesh, V. // Commercial Carrier Journal; Jul2005, Vol. 162 Issue 7, p78 

    Evaluates the Class 8 high-output alternator from Mitsubishi Electric. Functions of the alternator; Remarks given by the company about the alternator.

  • Rougher, tougher alternators.
    Elangovan, Sooriyamoorthy; Prakasan, K.; Jaiganesh, V. // Fleet Owner; Feb2005, Vol. 100 Issue 2, p56 

    This article reports that the firm Delco Remy has introduced several enhanced heavy-duty brushless type alternators for the commercial truck and transit bus market that is says are more durable and reliable. Featuring Delco Remy's new Maximum Cooling Technology design, the alternators have dual...

  • Alternators/starters.
    Elangovan, Sooriyamoorthy; Prakasan, K.; Jaiganesh, V. // Aftermarket Business; Jun2004, Vol. 114 Issue 6, p32 

    Presents the survey results of the 8th Annual U.S. Consumer Attitude Survey Study for the automotive aftermarket category of alternators/starters. Buying habits; Reason for the purchase; Alternative user of the product; Source of the purchase; Influence of advertising on product purchase; Source...

  • How to Care for Your Alternator.
    Faulkner, Jimmy // Fire Chief Expert Blog; 6/11/2012, p1 

    The article discusses the maintenance for an alternator. It notes that load-rated alternators is the life blood of electrical systems on any emergency apparatus. It elaborates on determining the specific alternator needed for a specific job by creating a load chart of electrical devices that...

  • Delco Voltage Regulator.
    Faulkner, Jimmy // Light Plane Maintenance; Feb2013, Vol. 35 Issue 2, p18 

    The article focuses on mechanical voltage regulators made by Delco Remy International Inc., which was used to control aircraft generators. It mentions the significance of the voltage regulator in the simplicity and functionality of mechanical engineering. It notes that maintenance and...

  • Chapter Eight -- Electrical System -- Chapter Eight -- Electrical System -- Alternator.
    Faulkner, Jimmy // Suzuki VS700-800 Intruder/Boulevard S50, 1985-2009; 2012, p255 

    The article presents a section of the Chapter Eight, Electrical System, of the shop manual "Suzuki VS700-800 Intruder/Boulevard S50, 1985-2009," in which step-by-step instructions related to alternators including how to test rotor, assemble stator, and remove/install rotor are discussed.

  • A NEW IMPROVED FUZZY LOGIC BASED POWER SYSTEM STABILIZER.
    SABAPATHI, D.; ANITA, R. // Journal on Electrical Engineering; Apr-Jun2012, Vol. 5 Issue 4, p43 

    Power System Stabilizer (PSS) is installed in the Automatic Voltage Regulator (AVR) of the generator, it must be capable of providing appropriate stabilization signals over a broad range of operating conditions and disturbances. Traditional PSS relay on robust linear design methods. In order to...

  • A NOVEL POWER CONTROL SCHEME OF ZERO HEADED POWER GENERATION BY SVPWM TECHNIQUE.
    SRIHARSHA, C. Y.; RAJU, K. NARASIMHA // Journal on Electrical Engineering; Apr-Jun2012, Vol. 5 Issue 4, p48 

    This paper presents an approach to the Power Regulatory Scheme for the Zero Headed Power Generation. In this scheme the system is mathematically modeled and is simulated in MATLAB. In Zero Headed Power Generation Scheme a Helical Turbine, which harnesses kinetic Energy of hydro currents of water...

  • Parker’s dynamo near the excitation threshold.
    Sever’yanova, M.; Popova, E.; Sokoloff, D. // Astronomy Reports; Aug2010, Vol. 54 Issue 8, p762 

    method of constructing asymptotic solutions for nonlinear mean-field dynamo equations near the excitation threshold is developed and applied to equations describing the solar dynamo in a Parker model. The form of solution obtained corresponds to the eigensolution for a kinematic dynamo, for the...

  • The vortex effect of Francis turbine in electric power generation.
    TÜRKMENOĞLU, Veli // Turkish Journal of Electrical Engineering & Computer Sciences; 2013, Vol. 21 Issue 1, p26 

    In this study, the vibration effects of a vortex that occurred in high-head Francis turbines and an alternator are examined. The vortex effect, which directly affects the efficiency and the quality of the energy, was tested at the Darca-1 hydroelectric power plant (HPP) located in Ordu Province,...

  • Grand Central still wrestling with rolling stock reliability problem.
    Miles, Tony // Modern Railways; Aug2008, Vol. 65 Issue 719, p72 

    The article reports on the operation of a single through service each way between Sunderland and King's Cross in England in July 2008 by open access operator Grand Central as reliability work on its HST train fleet continued. One of the trains is utilized to operate its through service while the...

  • Nonlinear Robust Excitation Control Based on ESO-Backstepping Method.
    Zhihan Zhang // Smart Grid; Jun2013, Vol. 3 Issue 3, p85 

    In this paper, the nonlinear robust excitation control of synchronous generator based on the ESO and backstepping method is proposed. The model uncertainties are compensated by constructed ESO, and the nonlinear parts of the model are retained for using back-stepping design method. Stability...

  • CHAPTER NINE -- ELECTRICAL SYSTEM.
    Zhihan Zhang // Harley-Davidson XL Sportster, 2004-2013; 2013, p296 

    The article offers information on service and test procedures for motorcycle's electrical and ignition system components. It provides step-by-step instructions for the testing and replacement of charging system, lighting equipment, and batteries. It also notes the removal, installation, and...

  • Don't be short with alternator.
    Zhihan Zhang // PS: Preventive Maintenance Monthly; Mar97, Issue 532, p14 

    Gives suggestions on how to handle shorting problems with the 650-amp alternator on M109A6 Paladin. Protection of pressure hoses; Coating of alternator's positive and negative terminals with adhesive sealant.

  • Coping with a bad reaction.
    Zwers, Joe // International Power Generation; Sep2004, Vol. 27 Issue 5, p29 

    Provides information on the causes and recommendations included in the Final Report released by the U.S.-Canada Power System Outage Task Force on the August 14, 2003 blackout in the U.S. and Canada. Factors contributing to the outage; Difference between effective and reactive types of power...

  • The Analysis of Wind Turbine Construction Safety System that Uses Vibroacoustic Diagnostics.
    SZMECHTA, M. // Acta Physica Polonica, A.; Sep2013, Vol. 124 Issue 3, p574 

    The paper presents an analysis of the results of monitored on-line Enercon E40/6.44 wind turbine with gearless designed synchronous generator and a nominal power of 600 kW. In recent months, this plant underwent with high frequency emergency stopped, the source of which was the acceleration...

  • Biggest Accelerator.
    SZMECHTA, M. // Time; 8/8/1960, Vol. 76 Issue 6, p69 

    The article offers information regarding the alternating gradient synchroton (AGS) of the Brookhaven National Laboratory in Long Island, New York. It offers details on the construction of the AGS and specifics regarding the AGS particle acceleration. Moreover, it compares the AGS particle...

  • Product News.
    SZMECHTA, M. // Coal Age; Jul2004, Vol. 109 Issue 7, p51 

    Presents information on several products used for coal mining introduced in the U.S. as of July 2004. EH5000 rigid frame haul truck from Hitachi; Flame proof alternator from Dry Systems Technology; Conveyor chain from Thiele GmbH.

  • 'Smart lightbox' helps detect diseases.
    SZMECHTA, M. // Design News; 6/7/93, Vol. 49 Issue 11, p38 

    Reports on the initiative of Advanced Technology Incubator Inc. in developing a new lightbox which enables doctor to analyze mammograms and other X ray films in the U.S. Consists of liquid crystal blocks; Capability to solve the problem of glare common with electric alternators; Usability of the...

  • Manufacturers tout new motor technologies.
    Bak, David J. // Design News; 3/24/97, Vol. 53 Issue 6, p19 

    Focuses on induction electric motors based on alternating current. Deployment of sensorless vector control technique in the motor to provide distinction between an inverter and vector drives; Problems associated with hard switching of electric motors; Examination of coil windings technology...

  • Decoupled, Reduced Order Model for Double Output Induction Generator Using Integral Manifolds and Iterative Separation Theory.
    Sedighizadeh, M.; Rezazadeh, A. // Proceedings of World Academy of Science: Engineering & Technolog; Dec2007, Vol. 36, p742 

    In this paper presents a technique for developing the computational efficiency in simulating double output induction generators (DOIG) with two rotor circuits where stator transients are to be included. Iterative decomposition is used to separate the flux-Linkage equations into decoupled fast...

  • CHARGES & STARTS.
    Petersen, Donny // American Iron Magazine; Jun2011, Issue 273, p42 

    The article explores four components of a motorcycle's Evolution charging system. The alternator is positioned inside the primary chaincase and is made up of a rotating rotor and a fixed stator. The regulator/rectifier on a generator charging system transfers DC voltage to the battery at a...

  • Design of Damper Windings for Permanent Magnet Synchronous Machines.
    Kinnunen, J. A.; Pryhönen, J.; Niemelä, M.; Liukkonen, O.; Kurronen, P. // International Review of Electrical Engineering; Mar/Apr2007, Vol. 2 Issue 2, p260 

    Parameter analysis and the performance characteristics of a non-salient pole threephase ac generator equipped with permanent magnets (PM) and damper windings are studied Asynchronous and synchronous operations are discussed. A dq-simulation model is used to analyze the asynchronous and...

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