For three phase motors, this is achieved by swapping the wires connecting any two phases.
2.
When only single phase power is available, a phase convertor can sometimes be used to allow the use of a three phase motor.
3.
It is possible that some very fancy three phase motors are internally six-phase motors ( using the same technology as a single phase motor ).
4.
Some models, however, were designed with three phase motors and the batteries ( three in total ) were housed in a cabinet mounted near the top or bottom of the rail.
5.
Chief engineer William E . Raby formulated its initial plans, which settled upon the production of alternating current to feed three phase motors, powered by waterfalls of the nearby Chivilingo River.
6.
Unlike a single phase motor, a three phase motor doesn't have a capacitor to rotate the incoming power and create a second phase ( technically, single-phase motors convert the power to 2 phase power internally and are really 2 phase motors ).
7.
Such three-phase electric power allows " Sternschaltung " and " Dreieckschaltung " to start a three phase motors at 230 V and change to 400 V to operate . 115 V AC equpment can not be used in Germany without reconfiguration or additional transformer.
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