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dc machine
Essay specific features
Written by:
Mildred V
Date added:
October 24, 2016
Level:
University
Grade:
A
No of pages / words:
4 / 1083
Was viewed:
7228 times
Rating of current essay:
Essay content:
machines have an inductor supplied with direct current and an inductor whose conductors are the seats of e.m.f. and alternating currents.
In d.c. machines the inductor is set in the stator and the armature in the rotor.
Stator
The stator is made up of the frame on whose internal surface the main poles are mounted equipped with pole shoes, facing the rotor...
displayed 300 characters
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Being the seat of constant magnetic induction, the frame and the polar cores are carried out in massive iron; on the contrary the pole shoes can be massive or with bars, because their induction suffers fluctuations.
Around each polar core there are identical coils that altogether make up the armature winding (or excitation winding); they are connected in such a way that, when they are flown by the excitation current, the m...
displayed 300 characters
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