Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

What is a synchronous motor?

April 26, 2017motor Synchronous

0

10 Posted

What is a synchronous motor?

2 Answers

0

Posted

A synchronous motor is an induction motor that operates directly from AC power and rotates at an exact multiple of the line frequency. Common synchronous induction motor speeds on 60 Hz are 1800 and 3600 RPM.

0

10 Posted

A synchronous motor is one that consists of a DC powered magnetic field rotor. Once the motor is started, the DC field follows the rotating AC electromagnetic fields in the stator. Therefore, the mechanical speed is going to be synchronous with the line frequency. For example, a 2 magnetic pole rotor has a mechanical speed of 3600 rpm. For a 4 pole motor, the mechanical speed is 1800 rpm. Since the mechanical speed is synchronous to the electrical frequency, the motor is called a synchronous motor. These types of motors cannot be treated because by increasing or decreasing the intensity of these rotating DC field, power factor can be adjusted to unity.