-- Magnetic motor 1, the static magnetic field 1) Motor, Edison
is a classic -- for the motor commutator. It gave birth to a commutator
Early glory and pride of Health also has its challenges by the AC
motor sad and helpless. (By his own mistakes, for To the trouble :
Brush Powder, for to sparks and fire the ball, did not attain a high
voltage DC not lock. ) 2) unipolar machine (single-pole, low voltage,
still using brush. ) 2, rotating magnetic field 1) : AC induction
motor stator magnetic spin (three-phase). 2) : AC synchronous motor
rotor rotary magnetic field (three-phase), its magnetic field axis in a
plane Like a (watches) targets the same rotation. 3, pulsating
magnetic field : Single-phase induction motor start and external
started. Not spin magnetic field, not transferred. Its intensity over
time cyclical changes. 4, runner field : "no single-pole motor for
devices to" exclude "other" distressed, Can achieve a high voltage
transformer also carried DC to DC in Step EHV transmission epoch of the
trouble Thrown into the eyes. DC is essentially internal, no ripple
coefficient. Waveform very straight, pure and absolute DC; Lane from
the outside of DC. Motor did not like the original internal actual
exchange; Is the direct external Flow. The electrical field into
trouble over the use of the motor performance of the structure also has ...