. Split phase
motors, Figure 3, use both a starting and running
winding. The starting
winding is displaced 90 electrical degrees from the running
winding. The running
winding has many turns of large diameter wire wound in the bottom of the stator slots to get high reactance. Therefore, the current in the starting
winding leads the current in the running
winding, causing a rotating field. During startup, both
windings are connected to the line, Figure 7. As the
motor comes up to speed (at about 25%...
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