permanent-magnet machine

  • 1magnet — /mag nit/, n. 1. a body, as a piece of iron or steel, that possesses the property of attracting certain substances, as iron. 2. a lodestone. 3. a thing or person that attracts: The park was a magnet for pickpockets and muggers. [1400 50; late ME… …

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  • 2Doubly fed electric machine — Doubly fed electric machines are electric motors or electric generators that have windings on both stationary and rotating parts, where both windings transfer significant power between shaft and electrical system. Doubly fed machines are useful… …

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  • 3Magnet therapy — This article is about static magnetic fields in alternative medicine. For medical uses of electromagnetism, see Electromagnetic therapy (disambiguation). Energy medicine edit Acupuncture Energy (esotericism) Energy medicine Polarity therapy Reik …

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  • 4Singly-fed electric machine — Singly fed electric machines (i.e., electric motors or electric generators) belong to a category of electric machines that incorporate one multiphase winding set, which is independently excited, actively participates in the energy conversion… …

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  • 5Gramme machine — A Gramme machine or Gramme magneto. A Gramme machine, Gramme ring, Gramme magneto, or Gramme dynamo is an electrical generator which produces direct current, named for its Belgian inventor, Zénobe Gramme, and was built as either a dynamo or a… …

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  • 6Doubly-fed electric machine — Doubly fed electric machines (i.e., electric motors or electric generators) belong to a category of electric machines that incorporate two multiphase winding sets of similar power rating that have independent means of excitation. As a result,… …

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  • 7The Energy Machine of Joseph Newman — Joseph Newman (inventor) redirects here. For other people called Joseph Newman, see Joseph Newman (disambiguation). Perpetual motion machine: The Energy Machine of Joseph Newman Diagram of a Newman Motor Disciplines physics …

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  • 8Grinding machine — A grinding machine is a machine tool used for producing very fine finishes or making very light cuts, using an abrasive wheel as the cutting device. This wheel can be made up of various sizes and types of stones, diamonds or of inorganic… …

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  • 9Electrical machine — is a device that convert either mechanical energy to electrical energy or vice versa, and change AC voltage from one level to another level.Electrical machines are divided into three parts:GeneratorGenerator is the device that converts mechanical …

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  • 10Superconducting magnet — A superconducting magnet is an electromagnet made from coils of superconducting wire. They must be cooled to cryogenic temperatures during operation. In its superconducting state the wire can conduct much larger electric currents than ordinary… …

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