EE 2403 SPECIAL ELECTRICAL MACHINES 2 MARKS UNIT-I - SYNCHRONOUS RELUCTANCE MOTOR 1. What is synchronous reluctance motor? A reluctance motor is a type of synchronous electric motor which induces non-permanent magnetic poles on the ferromagnetic rotor. Torque is generated through the phenomenon of magnetic reluctance. 2. Define the characteristics of synchronous reluctance motor. The synchronous reluctance motor is not self starting without the squirrel cage. During run up it behaves as an induction
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inclination‚ this method will give a accurate inclination grade‚ not like the pendulum system that was used during the experiment that give a very big uncertain reading of the inclination grade. I understand the use of the magnet to calibrate the pendulum but at the same time the magnet was causing a movement in pendulum giving a wrong or a hard time to read an accurate grade of inclination. 3) A clear dummy or mark on it that math with the teeth in which it was move will help to. Some time when
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Organisms and Their Surroundings Ø 17 & 18 Worksheets 10. Motion and Measurement of Distances Ø 19 & 20 Worksheets 11. Light‚ Shadows and Reflections Ø 21 & 22 Worksheets 12. Electricity and Circuits Ø 23 & 24 Worksheets 13. Fun with Magnets Ø 25 & 26 Worksheets 14. Water Ø 27 & 28 Worksheets 15. Air Around Us Ø 29 & 30 Worksheets 16. Garbage In‚ Garbage Out Ø 31 & 32 Worksheets (ii) 1 FOOD : WHERE DOES IT COME FROM WORKSHEET-1 SUMMATIVE ASSESSMENT Objective
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Literature Review of Electric Vehicle Technology Yuling CAO S3445024 ABSTRACT In this paper‚ structure of electric vehicles is initially reviewed. Then electric vehicles propulsion system which consists of energy storage system‚ power electronic system and electric motor is reviewed in detail. Besides‚ performance of electric vehicles and advantages and disadvantages of this technology are also discussed. Key words: propulsion system‚ battery‚ converter/inverter‚ motor‚ battery. INTRODUCTION
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Abstract— This paper analyses the working of a stand-alone vertical wind turbine system with a Permanent Magnet Alternator (PMA) and a secondary system consisting of an energy storage device for storing energy during wind speed variations. The ancillary system is necessary to support the primary system and improve its reliability under drastic conditions. Initially‚ the entire system is modeled with the VIENNA Rectifier‚ and the storage system‚ excluding the PMA. The output power required by the
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CBSE Class IX Term I Summative assessment I Sample paper 3 SECTION A 1. Breathing on a mirror turns mirror foggy‚ what phenomenon is responsible for this? [1] 2. What is the major function of cell wall in plant cell? [1] 3. When a carpet is beaten with a stick‚ dirt comes out of it. Why? [1] 4. (a) Name the two factors on which the buoyant force depends. [2] (b) State the relationship between the buoyant force on an object and weight of the liquid displaced by it. 5. State any two reasons for
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convenient fashion induces a voltage between the loop terminals. This effect can be used to build an electric power generator‚ such as the one described in this paper. A coil attached to a shaft spins within the magnetic field of a "U" shaped magnet. Three conveniently designed conductive disks allow the electrical load of the generator to be fed either with alternating current or direct current. the loop terminals is sinusoidal with zero mean value (Fig. 2). Its frequency is equal to
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Mattel Toy I. Introduction : Mattel Toy Recall 2007 Case Study About Mattel In 1945‚ Ruth and Elliot Handler and Harold "Matt" Matson form a partnership called Mattel Creations in Southern California in a garage workshop that manufactured picture frames and dollhouse furniture. The world’s largest toy company‚ Mattel‚ Inc.‚ also known as “the world’s premiere toy company - today and tomorrow‚” designs‚ manufactures‚ markets‚ and distributes a variety of toy products all over the world. The company’s
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Volume(mL) | GraduatedCylinder (g) | GraduatedCylinderwith liquid (g) | Liquid (g) | Densityg/mL | %Error | Water | 5ml | 16.4g | 21.5g | 5.1g | 1.02g/ml | 2% | Isopropyl alcohol | 5ml | 16.4g | 20.6g | 4g | .08g/ml | 1.78% | Data Table 5: Magnet –
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and GPS. The compass was first invented in China during the Qin dynasty 221-206 B.C. by Chinese fortunetellers (The compass‚ 2008). The first compass was made from lodestones‚ which is a piece of the mineral magnetite that has the same property as a magnet. The evidence suggested that compass first appeared in Europe in 1190. Some people have assumed that compass could have been imported into Europe from China‚ but there is no evidence to support the theory (History‚ n.d.). The first compass was simply
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