A DC motor is a mechanically commutated electric motor powered from direct current (DC). The stator is stationary in space by definition and therefore so is its current. The current in the rotor is switched by the commutator to also be stationary in space. This is how the relative angle between the stator and rotor magnetic flux is maintained near 90 degrees‚ which generates the maximum torque. DC motors have a rotating armature winding but non-rotating armature magnetic field and a static field
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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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Tesla Model S Table of Contents Executive Summary Situation Statement Tesla Motors Inc. is preparing for its Toronto debut in January 2010. Tesla wants to create preorder sales for its debut. The company wants to position its vehicles as viable alternatives to gasoline cars. It also wants to generate buzz for its cars in Toronto. Objectives Create 24 sales by the December 2010 debut of Tesla Motors in Toronto. Strategy Use exclusivity to generate hype and therefore sales for Tesla
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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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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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Contents Industry Overview 3 Porter’s 5 Forces 3 1. Bargaining Power of Suppliers 3 2. Bargaining Power of Buyers 4 3. Rivalry Among Competitors 4 4. Barriers to Entry 5 Barriers to Exit 5 5. Threat of Substitutes 6 Overall Industry Attractiveness 6 Emerging Trends in the Industry 7 Value Chain Analysis 7 VRIO FRamework 8 1. Design and technological capability 8 2. Loyal vendor base 8 3. Manufacturing synergies 8 4. Sales and Distribution Network 8 TATA
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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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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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Hyundai-motor-company-report PART 1: HYUNDAI MOTOR COMPANY REPORT Business Description Products and Brand: Hyundai Motor Company (hereafter‚ HMC) formed in 1967‚ was a part of the South Korean Chaebol - the Hyundai Group. In the last four decades‚ HMC managed to establish itself as a most prominent automaker producing reliable‚ technically sound and stylish automobiles and commercial vehicles. Headquartered in Seoul‚ South Korea‚ HMC opened a new chapter in the history of the
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