Lead End is the motor perspective of having the shaft pointed away from you. Opposite lead end is shaft end.
What means lead end?
If the shaft is pointing at you and rotates to the right, your motor is clockwise shaft end, or CWSE. If the shaft rotates to the left, your motor is counterclockwise shaft end, or CCWSE.
What is a lead in a motor?
What is a lead? The leads on an electric motor are the attached wires or cables that come off the motor and connect to the power supply to energize the motor. Simply put, they’re the motor’s wires.
Which is the drive end of a motor?
the drive end (D.E., pulley end P.E.) etc. Base End of a Motor: The speed which a d-c motor develops at rated armature and field voltage with rated load applied. “
Which end of a motor do you look at to determine rotation?
The direction in which shaft rotates: CW-Clockwise; CCW-Counterclockwise; CW/CCW(Reversible), rotation can be changed by electrical reconnection. Unless stated otherwise inSpecial Features column, rotation is viewed facing shaft end on single-shaft motors, and lead endon double-shaft models.
What is a shaft end?
Shaft end seals are required to seal the gas inside the compressor at the point where the compressor or piston shaft penetrates the casing. This vital sealing function is necessary to prevent escape of process gas to the environment surrounding the compressor.
How can you tell if a motor is 3 phase?
First, you can check the motor nameplate data which is usually located on a paper or metal label attached to the side of the motor. Second you can simply look at the number of electrical leads coming out of the motor. If your motor has three black leads and a green lead then it is likely three phase.
What do you call the motor when it continues turning after reaching its limit?
Continuous Duty: A motor that can continue to operate within the insulation temperature limits after it has reached normal operating temperature.
How do you check the rotation of a motor?
One way to test motor direction is to take your best guess on how to connect the leads, then run the motor and note the direction it spins. If you’re wrong, you undo two leads and swap the wires. Just to make sure, run the motor again. If it spins in the correct direction, you can then couple it to the load.
What is the first thing you should do when troubleshooting a motor?
For the supply, test first with the motor disconnect open and locked out. Use your megohmmeter to test the insulation resistance to ground.
Final tests and procedures.
- Listen for unusual noises.
- Smell for smoke or hot insulation.
- Feel the motor for excessive heat or vibration.
- Look for possible obstructions.
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.
What is the standard direction of a motor?
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.
Can you reverse the direction of an AC motor?
In order to reverse the direction of an AC motor, the magnetic fields must be altered to provoke movement in the opposite direction. … This easy switching of wires works because the polarity of the magnetic field is reversed, thus reversing the motor.