The speed of an asynchronous motor rotating field and thus its rotor speed depends on the number of pairs of poles in the stator field .the rotor speeds n are lower than the table values by the amount of the relevant slip speed ns. Motors are designed with up to three stators windings‚ which have different number of pairs of poles. They can therefore run at up to pairs of poles. They can be in any desired ratio to one another. A pole-changing switch is used to changing poles for the desires speed
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GROUP 4 JULY 26‚ 2013 EE 4101 ENGR. KENNETH F. FAJILAN Reluctance Motor Introduction A reluctance motor is a type of electric motor that induces non-permanent magnetic poles on the ferromagnetic rotor. Torque is generated through the phenomenon of magnetic reluctance. There are various types of reluctance motor: Synchronous reluctance Synchronous reluctance motors have an equal number of stator and rotor poles. The projections on the rotor are arranged to introduce internal flux “barriers“
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Project TATA CORUS MERGER A report submitted to ISB&M‚ Delhi Campus as a part fulfillment of Full time Postgraduate Program in Business Management. Abhishek Kumar ENR NO.: 1101 Batch: 2005-2007 E-mail: abhi.k.chaudhary@gmail.com International School of Business & Media‚ Delhi 7th Floor‚ Aggarwal Millennium Tower Netaji Subhash Place‚ Wazirpur District Centre‚ Pitampura‚ Delhi 110 034 Index |Serial No. |Topic
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the Case About Wolf Motors Key Aspects of Supply Chain Supply Chain Model/Relationships Discussion/Conclusion 3.About the Case This case throw light on the fourth dealership of Wolf Motors‚ which was the first auto supermarket in the network of dealerships of the Company. John Wolf‚ the president of the company was really excited about this new dealership which served a metropolitan area of 400‚000 people. This newly supermarket differed from traditional auto market as it sold full line of
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AC Motors vs DC Motors DC Motors Prof. Dr. M. Zahurul Haq zahurul@me.buet.ac.bd http://teacher.buet.ac.bd/zahurul/ Department of Mechanical Engineering Bangladesh University of Engineering & Technology e316.eps ME 475: Mechatronics AC motors are smaller in size‚ reliable and less costly. AC motors run at fixed speed set by the line frequency. Easy speed‚ torque & direction controls in DC motors. DC motors are generally operate at lower voltages which makes these easier to interface with control
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1. Why do Companies such as Procter & Gamble target emerging markets? Do you agree with this strategy? Big companies such as Procter & Gamble target emerging markets because they are determined to grow. Their strategy is to capture as much customers as they can. Procter & Gamble had a goal of reaching a billion more consumers by penetrating the emerging markets with the most population and development such as India and China. By doing this‚ they are creating a profitable future‚ and it worked since
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ELECTRIC MOTOR CONTROLS Once the proper motor is selected‚ understanding the many various control devices available and their uses and limitations becomes an important part related to reliable operation and protection of the motor and the personnel using the motor. Motor Control Topics There are four major motor control topics or categories to consider. Each of these has several subcategories and sometimes the subcategories overlap to some extent. Certain pieces of motor control equipment can accomplish
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Tata Nano is an ambitious project of Tata Motors and is a new concept altogether‚ which is to launch a low cost car India. As a Project Manager of this project I will follow the project life cycle of the project and will describe the various stages. The Project Life Cycle refers to a logical sequence of activities to accomplish the project’s goals or objectives. Regardless of scope or complexity‚ any project goes through a series of stages during its life. There is first an Initiation or Birth phase
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EXPLAINING THE BASICS OF MOTION MN1205 TABLE OF CONTENTS TYPES OF MOTORS . . . . . . . . . . . . . . 3 OPEN LOOP/CLOSED LOOP . . . . . 9 WHAT IS A SERVO . . . . . . . . . . . . . . 11 COMPENSATION . . . . . . . . . . . . . . . 13 TYPES OF CONTROLS . . . . . . . . . . . 15 TYPES OF FEEDBACK DEVICES . 17 TYPES OF ACTUATORS . . . . . . . . . . 22 Page 2 Servo Control Facts TYPES OF MOTORS The direct current (DC) motor is one of the first machines devised to convert electrical energy to
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SISTEMAS DC Motors Catedrático: Ing. Gustavo Mendoza Leal Alumno: Alfredo Valdés Cárdenas Introduction A DC motor is a type of electrical machine that converts direct current into mechanical power by means of a magnetic field. DC motors are widely used in field applications because of their many advantages over AC motors such as speed control‚ high starting torque‚ quick starting‚ stopping‚ reverse and acceleration and free from harmonics found in AC. Applications of DC motors include but
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