Uni-directional electric motors run just one way: clockwise (CW) or counterclockwise (CCW) but not both. In many applications the equipment driven by the electric motor will not work properly unless the motor drive shaft spins in a pre-determined direction: clockwise or counter-clockwise.
What is the standard rotation of a NEMA motor?
As IEC specify that a motor should rotate clockwise viewed from the drive end, the end result is that it is equivalent to NEMA which is anti-clockwise viewed from the non-drive end.
Can you change the direction of an electric motor?
This happens to be an easy fix: all you need to do is swap any two the power leads to flip/reverse the magnetic field, and the most common practice is to switch lines 1 and 3. Once this is done, the motor should be running in the right direction. If you have more than 3 leads, it may take a bit more.
Do electric motors turn clockwise?
Electric motors are designed either for clockwise rotation, or counter-clockwise, or both. This is very simple. The IEC standard says that the direction of rotation is always viewed from the driven end side, where the load is. … The item important for direction of rotation are mainly the cooling fans.
How do you vary or change the direction of rotation of a motor?
So in order to change the direction of rotation, we can simply reverse the voltage, causing the current to flow in the opposite direction, changing the force by 180 degrees and the motor to be driven ‘backwards’.
Why is clockwise to the right?
In the northern hemisphere, the shadow of the dial traces clockwise as the sun moves through the sky, so when clocks were being developed in medieval times, their hands were made to turn in the same direction.