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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Dao Tran MGMT405 12:30-1:45 Dr Yan Case #3 Tata Motors 1. What inspired Tata Motors to build the Nano? Why was there a need for an inexpensive car in India? The idea of Nano–The People’s Car was inspired by the middle class Indians who bought and transported their entire families on scooters. To most middle class families in India owing a car is a far cry. Rattan Tata‚ Tata Motor’s Chairman said that the tiny car is aimed at keeping the families of India’s growing middle class from having to travel
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Situational Analysis Overview: Riverside Motor Inn in Bridgewater‚ Nova Scotia is a building built in 1975. There are 34 rooms‚ the Sou’ Wester restaurant‚ and Chapters Lounge within the building. Guests of the Riverside Inn and residents of the community come to Chapters Lounge for a drink and quiet conversation. The atmosphere is unique because it is relaxing compare to the typical “bar scene.” The sales from Chapters Lounge from 1994 to 1996 have been $63‚300‚ $75‚700‚ and $66‚700 with 95% of
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CH 1 Marketing -Process by which companies create value for customers and build strong customer relationships in order to capture value from customers in return Marketing Process 1. Create Value for customers Create Value for customers Understand the market place + customer needs/wants/demands 2. Design a customer driven marketing strategy (goal=getting‚ keeping‚ growing target customers) 3. Construct a marketing program delivering superior value 4. Build profitable customer
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General Motors was founded in September of 1908 by William Durant during a time that there were less than 8‚000 in the United States. Durant was already known in Flint‚ Michigan for his horse drawn vehicles. “At its inception GM held only the Buick Motor Company‚ but in a matter of years would acquire more than 20 companies including Oldsmobile‚ Cadillac‚ and Oakland‚ today known as Pontiac.”(History & Heritage-Creation‚” 2014) General Motors set the tone in the automobile industry with design
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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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