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The field windings

См. также в других словарях:

  • field current — noun : the current supplied to the field windings of a generator or motor to establish the magnetic field for its operation * * * Elect. the current in a field winding. Also called exciting current …   Useful english dictionary

  • Field coil — A field coil is a component of an electro magnetic machine, typically a rotating electrical machine such as a motor or generator. A current carrying coil is used to generate a magnetic field. Magnetic fields require a continuous circuit, thus… …   Wikipedia

  • Magnetic field — This article is about a scientific description of the magnetic influence of an electric current or magnetic material. For the physics of magnetic materials, see magnetism. For information about objects that create magnetic fields, see magnet. For …   Wikipedia

  • clutch field — A clutch part on an air condition compressor, consisting of hundreds of windings of wire, that creates a magnetic field when current is applied, pulling in the armature to engage the clutch …   Dictionary of automotive terms

  • Mongol conquest of the Song Dynasty — Southern Song before Mongol World conquests Date 1235 1279 Locati …   Wikipedia

  • polarizing — The process of sending a quick surge of current through the field windings of the generator in a direction that will cause the pole shoes to assume the correct polarity. This will insure that the generator will cause current to flow in the same… …   Dictionary of automotive terms

  • Electric motor — For other kinds of motors, see motor (disambiguation). For a railroad electric engine, see electric locomotive. Various electric motors. A 9 volt PP3 transistor battery is in the center foreground for size comparison. An electric motor converts… …   Wikipedia

  • electric generator — ▪ instrument Introduction also called  dynamo,         any machine that converts mechanical energy to electricity for transmission and distribution over power lines to domestic, commercial, and industrial customers. Generators also produce the… …   Universalium

  • Electrical 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 …   Wikipedia

  • Ward Leonard control — Ward Leonard Control, also known as the Ward Leonard Drive System, was a widely used DC motor speed control system introduced by Harry Ward Leonard in 1891. In early 1900s, the control system of Ward Leonard was adopted by the U.S Navy and also… …   Wikipedia

  • Squirrel-cage rotor — A squirrel cage rotor is the rotating part often used in an AC induction motor. An electric motor with a squirrel cage rotor is sometimes called a squirrel cage motor. In overall shape it is a cylinder mounted on a shaft. Internally it contains… …   Wikipedia

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