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hybrid stepper motors
hybrid stepper motors

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... The global demand for electric energy has increased continuously over the last few decades. Energy and the environment have become serious concerns in the today‟s world [1]. Alternative sources of energy generation have drawn increasing attention in recent years. Clean and renewable energy sources s ...
recognization and reduction of source current harmonics in a loaded
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... industry and were (and still are) caused by the nonlinear magnetizing impedances of transformers, reactors, fluorescent lamp ballasts, induction motors etc. In addition, power electronic devices have become abundant today because of their capabilities for precise process control and energy savings b ...
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Electrification



Electrification is the process of powering by electricity and is usually associated with changing over from another power source. The broad meaning of the term, such as in the history of technology and economic history, usually applies to a region or national economy. Broadly speaking, electrification was the build out of the electrical generating and distribution systems which occurred in Britain, the United States, and other countries from the mid-1880s until around 1950 and is in progress in rural areas in some developing countries. This included the change over from line shaft and belt drive using steam engines and water power to electric motors.The electrification of particular sectors of the economy is called by terms such as factory electrification, household electrification, rural electrification or railway electrification. It may also apply to changing industrial processes such as smelting, melting, separating or refining from coal or coke heating or chemical processes to some type of electric process such as electric arc furnace, electric induction or resistance heating or electrolysis or electrolytic separating.Electrification was called ""the greatest engineering achievement of the 20th Century"" by the National Academy of Engineering.
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