Which winding typically has a higher resistance, motor start winding or run winding?

The start winding typically has a higher resistance compared to the run winding. This is due to the design and purpose of each winding.

The start winding is constructed with finer wire and has more turns, which results in a higher resistance. Its primary function is to provide the necessary torque to start the motor, creating a phase shift that allows the motor to begin rotation. Once the motor reaches a certain speed, a centrifugal switch or relay disconnects the start winding, as it is no longer needed for continued operation.

In contrast, the run winding is designed for efficiency and is made from thicker wire with fewer turns, leading to lower resistance. This winding is meant for continuous operation, helping to maintain the motor's function after it has started.

Understanding the differences between these windings is crucial for interpreting motor behavior and diagnosing potential issues within an electrical system.