Chapter (11) Synchronous Motors Introduction It may be recalled that a d.c. generator can be run as a d.c. motor. In like manner‚ an alternator may operate as a motor by connecting its armature winding to a 3-phase supply. It is then called a synchronous motor. As the name implies‚ a synchronous motor runs at synchronous speed (Ns = 120f/P) i.e.‚ in synchronism with the revolving field produced by the 3-phase supply. The speed of rotation is‚ therefore‚ tied to the frequency of the source. Since
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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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Case 2 Tata Motors 1. Describe the economic characteristics of the global motor vehicle industry. The 2008 financial crisis began in the American subprime mortgage crisis‚ eventually evolved into a global financial crisis. Most countries because of the impact of the financial crisis‚ leading to a sharp slowdown in consumer’s vehicle demand. Also‚ because of the financial crisis‚ the global motor vehicle industry experienced a full-scale market competition. Some small car companies to be phased
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Case Analysis for Ford Motor Company Group 3 Elina Cordon Sanya Ith Karen Palmer Aydely Santiago-Taiman Table of Contents Table of Contents………………………………………………………………………...1 I. Executive Summary……………………………………………………………..2 II. Introduction……………………………………………………………………...3 III. Issues………………………………………………………………………….....4 IV. External Audit…………………………………………………………………...4 Opportunities…………………………………………………………....4 Threats…………………………………………………………………..5 V. Internal Audit…………………………………………………………………….6 Strengths………………………………………………………………
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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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since its founding as a motorcycle manufacturer on July 1‚ 1955‚ Yamaha Motor Company has worked to build products which stand among the very best in the world through its constant pursuit of quality; and at the same time‚ through these products‚ it has sought to contribute to the quality of life of people all over the world. Following on the success of our motorcycles‚ Yamaha began manufacturing powerboats and outboard motors in 1960. Since then‚ we have used our engine and FRP technology as a base
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The Generals In my personal opinion‚ I think that the Generals assemblage was a great success. Many websites and a book that I have looked at said that the statue gives off a humorous feel than serious. Most serious sculptures would only depict one rider on a steed‚ whereas the Generals has two men (one being our country’s Founding Father and the other Simón Bolívar‚ the political and military leader of Venezuela). It is also to be noted that the way the horse is depicted in the statue--it is very
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Tesla Motors faces is the society and subcultures. In this day in age consumers worldwide have increased their knowledge and sensitivity about its environment. Numerous companies have catered to this need of becoming more environmentally responsible by offering products that are “green” or environmentally friendly. This new growth amongst people and organizations alike of becoming more environmentally conscious has created an opportunity for Tesla Motors with its brand of product. Tesla Motors produces
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different ways to fit into the world and learns that the rules of behavior differ in different situations‚ he may test the limits and react negatively at times. II. PURPOSE OF THE EXAMINATION The Test of Gross and Fine Motor Skills is a standardized test that measures the motor abilities a certain child develops early in life. The test is used to: * identify children who are significantly behind their
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Motor Graders in Construction The motor grader is a large multipurpose machine used for many different construction operations. These many operations include but are not limited to: grading‚ shaping‚ bank sloping‚ ditching‚ and scarifying. Graders can also be employed to clear roads of snow and debris without doing any damage to the underlying roadway surface. Graders are much more “gentle” than dozers and other large pushing machinery. Motor graders are designed for preparing the substrate of roads
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