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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EPHE 380 – Motor Control Final Exam Ian Haig V00711512 Scenario: Walking down a 45 degree slope with a surfboard under my left arm and a large mountaineering backpack on my back. I was walking down the trail to Sombrio Beach which is about a 1.5k hike down a steep trail to the ocean. I had a surfboard under my right arm‚ an axe in my left hand‚ and a large 40 litre hiking backpack fully loaded with supplies on my back. About half way down there is a left turn in the trail which has a declining
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READ MOREBrushless DC Motors are an important class of highly efficient electric motors. They are most frequently used in electric vehicles because of their high efficiency and high power density. They are also present in the small DC fans used in power supplies and CPU coolers. In order to discuss the Brushless DC Motor it is important to first have a basic understanding of the more common Brushed DC Motor which is present in many household items. The brushed DC motor consists of a rotor (the
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2.1 Motors use the effect of forces on current-carrying conductors in magnetic fields 2.1.1 The motor effect The motor effect is where a force acts on a current-carrying conductor in a magnetic field. The right hand palm rule is used to find certain properties: fingers point to magnetic field‚ thumb points in DC direction and palm points to direction of the force. 2.1.2 Factors affecting the force acting on the current-carrying conductor Forces are experienced by the electrons in the conductor
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information from http://www.researchandmarkets.com/reports/554957/ Tata Motors Limited - SWOT Analysis Description: The Tata Motors Limited - SWOT Analysis company profile is the essential source for top-level company data and information. Tata Motors Limited - SWOT Analysis examines the company’s key business structure and operations‚ history and products‚ and provides summary analysis of its key revenue lines and strategy. Tata Motors (or the company) is one of the leading automotive vehicle manufacturing
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business sectors‚ they are information technology and communications‚ engineering‚ Materials‚ Services‚ Energy‚ Consumer products‚ Chemicals. My project is on the India’s largest automobile company Tata Motors Ltd which comes under engineering sector of Tata Company. The purpose of Tata motors is to “Improve the quality of life Improve the quality of life of the communities we serve of the communities we serve through leadership in through leadership in sectors of national economic significance
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UC3638 Advanced PWM Motor Controller FEATURES • • • • • • • • Single or Dual Supply Operation Accurate High Speed Oscillator Differential X5 Current Sense Amplifier Bidirectional Pulse-by-Pulse Current Limiting Programmable Oscillator Amplitude and PWM Deadband Dual 500mA Totem Pole Output Drivers Dual 60V‚ 50mA Open Collector Drivers Undervoltage Lockout DESCRIPTION The UC1638 family of integrated circuits are advanced pulse width modulators intended for a variety of PWM motor drive and amplifier
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its employees and its use of lean production techniques. Nissan Motor Manufacturing UK Limited (NMUL) is UK’s largest car manufacturing plant which is located near Sunderland. It has been Europe’s most productive car plant for the past seven years. Cars produced include the Almera‚ Micra and Primera. Over 70% of output is exported to 55 markets worldwide. Student task: read section 1 and answer the following questions: what models of car are made by Nissan and how many of each are made? Answer;
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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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Tesla Motors INTRODUCTION Attention Getter/ Thesis Statement: Tesla’s designs and ideas have changed the world. Most of our cars and trucks currently run on gasoline‚ and the shortage of fossil fuel is becoming a serious matter. The available alternatives are Electric‚ Hydrogen and Hybrid vehicles. Hybrid cars still emit carbon dioxide; Hydrogen cars produce pure water as waste‚ but technical problems need to be overcome. Moreover‚ hydrogen fuel cells use platinum for catalysts and supplies
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