Question
Download Solution PDFHow does the starting torque of a split-phase motor compare with that of a shaded-pole motor?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Split-phase motors and shaded-pole motors are both single-phase induction motors, but they differ significantly in terms of starting torque. Split-phase motors use an auxiliary winding to create a phase difference, resulting in higher starting torque.
Calculation
Split-phase motors provide moderate to high starting torque because of the phase shift introduced by the auxiliary winding. Shaded-pole motors, on the other hand, have very low starting torque due to the weak rotating magnetic field generated by the shaded portion of the pole.
Therefore, split-phase motors are better suited for applications requiring higher starting torque, such as fans, pumps, and small tools, whereas shaded-pole motors are used in low-torque applications like small fans and clocks.
Last updated on Jul 2, 2025
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