The discussion centers on the cost comparison between single-phase induction motors and three-phase induction motors when rated for the same power, RPM, input voltage, and current. It is established that single-phase induction motors are not true induction motors but rather a configuration that requires additional components, leading to higher costs. Despite this, the sales volume of single-phase motors may balance the overall pricing in the market.
PREREQUISITESElectrical engineers, motor design specialists, and procurement professionals involved in the selection and cost analysis of induction motors.
Strictly speaking, there is no such thing as a single phase induction motor, but you can "fake" it (see http://www.allaboutcircuits.com/textbook/alternating-current/chpt-13/single-phase-induction-motors/). Since it involves more components, it should be more expensive, but sales volume might tend to equalize the costs.srinaath said:hi guys...
which will be costlier-single phase induction machine or three phase induction machine for same power rating, same rpm speed, same input voltage and current.?