Capacitors single-phase motors

Single phase motors do exhibit operational problems in pony motor applications. The capacitors in these motors store energy and the motors resist external attempts to rotate them. Single phase motors can be made to work on pony motor applications by splicing into the capacitor circuit and connecting it in series with an open auxiliary switch in the active motor starter. 

Capacitor Motor. A capacitor motor is a single-phase induction motor with a main winding arranged for a direct connection to a source of power and an auxiliary winding connected in series with a capacitor. There are three types of capacitor motors, as follows ... 

Single-Phase Operation. If single-phase power only is available, it is advisable to consider the use of single-phase to three-phase converters and three-phase motors. This avoids the use of large single-phase capacitor start motors, which are relatively expensive and contain a starting switch that could be a source of trouble due to failure or to the presence of flammable gas in the vicinity of the well,... 

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