Air Compressor Motor丨What are the common motor levels and speeds?
2022-06-24
I'm not sure if you're going to be able to get a good deal on a motor, but I'm sure you'll be able to get a good deal on a motor.
Commonly used air compressor motor level is different, its output speed is not the same, then the common motor level and speed is how much, the market is common 2-class motor, 4-class motor, 6-class motor output speed size is how much.
First, four commonly used motor and speed size
Level 2 motor: synchronous speed 3000, rotor speed 2600 ~ 2980
4-stage motor: synchronous speed 1500, rotor speed 1380-1480
Class 6 motor: synchronous speed 1000, rotor speed zd900 to 980
8 motor: synchronous speed 750, rotor speed 690 to 740
Second, the number of motor poles and synchronous speed formula
The number of motor poles: 2.4.6.8, etc.
Synchronous speed formula: n = 60f / p
The above formula n - motor speed (rpm); 60 - per minute (seconds); f - power supply frequency (Hz); p -- motor rotating magnetic field logarithm
Because asynchronous motors have a rate of rotation, so the actual speed is less than the synchronous speed, the actual speed of how much each manufacturer produces different motors, but the difference is very small.
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Slip rate is also known as the sliding rate, when the tire issued traction or braking force, between the tire and the ground will occur relative motion
It varies with the size of the load. According to the national standards and IEC standards, the full-load slip rate of general-purpose asynchronous motors is 1.5 to 5%.
When the turnover rate is zero, there is no turnover rate, i.e. synchronous speed. For synchronous motors, there is no turndown rate.
When the rate of rotation difference is equal to 1, the motor does not rotate. Therefore, the rotation differential cannot be 0 or equal to 1.