Question: Where is synchronous motor used in ship?

Synchronous motors are normally used in applications in which a constant and precise speed is required. Typical applications of these low power motors are positioning machines. They are also used in robot actuators. Synchronous motors are also used in ball mills, watches, record players, and turntables.

Which motor is used in ship?

Originally Answered: What type of engines are used in ships? Generally slow speed 2-stroke diesel engines are used in ships.

Why synchronous motor is used in propulsion?

With the development of the power electronics technology and magnetic materials, in the ship electric propulsion system, the permanent magnet synchronous motor was usually used. … The propulsion system consisted by the permanent magnet synchronous motor, is low noise, high efficiency, maintenance and performance better.

What is the main disadvantage of synchronous motors?

Disadvantages or Demerits:

Synchronous motors requires dc excitation which must be supplied from external sources. Synchronous motors are inherently not self starting motors and needs some arrangement for its starting and synchronizing. The cost per kW output is generally higher than that of induction motors.

What are the advantages of synchronous motor?

The advantage of using synchronous motor is the ability to control the power factor. An over excited synchronous-motor has leading power factor and is operated in parallel to induction motors thereby improving the system power factor. Speed remains constant irrespective of the loads in synchronous motors.

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Which is the main application of synchronous motors?

Synchronous motors are normally used in applications in which a constant and precise speed is required. Typical applications of these low power motors are positioning machines. They are also used in robot actuators. Synchronous motors are also used in ball mills, watches, record players, and turntables.

What is the working principle of synchronous motor?

Working of synchronous motors depends on the interaction of the magnetic field of the stator with the magnetic field of the rotor. The stator contains 3 phase windings and is supplied with 3 phase power. Thus, stator winding produces a 3 phased rotating Magnetic- Field.

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