Exciter Rotor And Stator. The stator windings now consist of a dense central band where the iron core and copper windings are tightly packed and end bands where the windings are more exposed for better heat transfer The closer core spacing from the rotor improves magnetic efficiency The smaller enclosed fans produce less noise particularly at higher machine speeds.
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PDF fileof the exciter (located on the stator) The output of the exciter’s armature circuit (on the rotor) is rectified and used as the field current of the main machine Construction of synchronous machines To make the excitation of a generator completely independent of any external power source a small pilot exciter is often added to the circuit The pilot exciter is an AC generator.
Hoover Dam United States Bureau of Reclamation
The other type has the field on the rotor and the armature on the stator In this case slip rings and brushes may not be necessary because power is produced in the stationary stator and rotor current can be supplied from a separate rotating exciter that is mounted on the same shaft This is called a rotatingfield ac generator.
EE 340 Spring 2011 UNLV
The rotor is a series of electromagnets also called poles The rotor is connected to the shaft so that the rotor rotates when the shaft rotates The stator is a coil of copper wire It is stationary The shaft connects the exciter and the rotor to the turbine Water strikes the turbine causing it to spin Hoover Dam uses Francis turbines.
Alternator (automotive) Wikipedia
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AC Synchronous Generator: Working Principle, Types
Electrical and Basics of Paralleling Institute of
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Rotor (electric) Wikipedia
Direct current (DC) from an external exciter or from a diode bridge mounted on the rotor shaft produces a magnetic field and energizes the rotating field windings and alternating current energizes the armature windings simultaneously Nonsalient rotor The cylindrical shaped rotor is made of a solid steel shaft with slots running along the outside length of the cylinder for.
