What is the rpm of AC motor?

What is the rpm of AC motor?

Two pole AC motors operating at 60 Hz will always run at approximately 3600 rpm, and four pole AC motors will have speeds around 1800 rpm. Example 120 x 60 hertz / 4 poles = 1,800 rpm.

What is an AC gear motor?

AC motors and gear motors include single-phase motors used with a single-phase AC power supply and three-phase motors used with a three-phase AC power supply. A single-phase motor can be operated by simply connecting it to a single-phase power supply via the supplied capacitor.

How do I choose a gear for my motor?

During the motor selection, look at the required speed and torque of the application. It should become evident if the motor chosen requires a gearbox to meet the necessary requirements. If a gearmotor is necessary, that adds another level of complexity … and several additional criteria need to be evaluated.

Is gear motor and DC motor the same?

A DC motor is not the same as a “gear motor” – a “gear motor” may be an AC or DC motor coupled with a gearbox or transmission. A gear motor adds mechanical gears to alter the speed/torque of the motor for an application. Usually such an addition is to reduce speed and increase torque.

What is the RPM of a 6 pole motor?

Six-pole motors run at 1,200 rpm unloaded (7,200 ÷ 6) and between 1,050 and 1,175 rpm loaded.

How do you calculate the RPM of an AC motor?

For an AC motor, the number of poles and the frequency determine the no-load RPM….For a 60 Hz system with four poles, the calculations to determine RPM would be:

1. (Hz x 60 x 2) / number of poles = no-load RPM.
2. (60 x 60 x 2) / 4.
3. 7,200 / 4 = 1,800 RPM.

Why are gear motors used?

Electric Gear motors are used in applications that require high output torque and lower output shaft rotational speed, especially where space and available power are limited. This describes a wide range of common equipment applications across multiple industries.

Why geared motor is used?

What are the main advantages of gear motors?

10 Advantages of Geared Motors

• High Torque Output.
• Speed Reduction.
• High Resolution.
• Drive Large Inertial Loads.
• Shorter Positioning Time.
• Downsize.
• Improved Damping Characteristics.
• Increased Axial and Radial Load.

How many RPM is a 6 pole motor at 50Hz?

1,000 rpm
Using this equation, a 4-pole motor at 60Hz has a speed of 1,800 rpm, while a 6-pole motor at 50Hz has a speed of 1,000 rpm. However, this is actually the speed of the magnetic field, called the synchronous speed, which is not always equal to the shaft speed.

What is the difference between gear motor and normal motor?

When a geared motor is used, the motor’s torque is multiplied by the gear ratio and gear efficiency. A geared motor will output more running and holding torque than an ungeared, standard motor. Along with higher torque output and strengthened rigidity, many related benefits can be realized as I will discuss below.

Where are geared motors used?

What are the types of gear motors?

The two most common gear motor types are right-angle gear motors that use worm, bevel, or hypoid gearing and inline gear motors, which typically use spur gears or planetary gear sets. Worm, spur, and planetary gear technology is most frequently used in many gearmotor designs.

How many RPM is a 6 pole motor?

How many coils does a 6 pole motor have?

For six-pole winding all the eight coils are connected in series.