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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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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TATA-AIG Life Insurance Company Ltd. India CGAP Working Group on Microinsurance Good and Bad Practices Case Study No. 14 James Roth and Vijay Athreye – September 2005 Good and Bad Practices in Microinsurance TATA-AIG‚ India Good and Bad Practices in Microinsurance This paper was commissioned by the “Good and Bad Practices in Microinsurance” project. Managed by the ILO’s Social Finance Programme for the CGAP Working Group on Microinsurance‚ this project is jointly funded by SIDA
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Case problem : Ford Motor Company’s Value Enhancement Plan Group 4 : Annie ‚ Duong Boi Ngoc ‚ Jussi ‚ Michael Q1. Does Ford have too much cash? Why did Ford choose to accumulate so much cash? And why is Ford distributing a large amount of cash now? (1) To check whether Ford has too much cash‚ we have to calculate the cash ratio. But the data we have is not complete‚ we cannot find out that ratio. Instead‚ we calculate the cash turnover ratio to check whether Ford has excess cash. Cash
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Design of Induction Motors Introduction: Induction motors are the ac motors which are employed as the prime movers in most of the industries. Such motors are widely used in industrial applications from small workshops to large industries. These motors are employed in applications such as centrifugal pumps‚ conveyers‚ compressors crushers‚ and drilling machines etc. Constructional Details: Similar to DC machines an induction motor consists of a stationary member called stator and a rotating
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Abstract This paper is about Ford Motor Company. Ford Motor Company has managed to stay ahead of their competitors‚ GM and Chrysler. In spite of the hike in the gas prices‚ the slump in the economy‚ and the housing fiasco‚ they have managed to survive in this tough economy. The strategies Ford Motor Company uses to conduct business consist of consumer focus‚ creativity‚ resourcefulness‚ and entrepreneurial spirit. Ford Motor Company is a leader in environmental responsibility and they strive to
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Brita Cloghesy-Devereux From: Ben - 300215504‚ Harper Date: March 12‚ 2018 Re: Assignment 4 – Understanding Segmentation 1. Original name from PRIMZ5: Asian Avenues – Rename: Asian on the rise 2. Segment Background - Asian Avenues: consisting of Chinese and South Asian immigrant families‚ the segment focuses on urban lifestyle and outdoor activities such as sport events and exhibitions. Their social value emphasizes multiculturalism due to diverse demographic. Most of the families have moderate
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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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