How do you check the range of an electric motor?
Check that the windings are not open or blown. Many simple “across the line” single-phase and 3-phase motors (used in household appliances and industry respectively) can be checked simply by changing the range of the ohm meter to the lowest offered (R X 1), zeroing the meter again, and measuring the resistance between the leads of the motor.
When do you need to read a motor nameplate?
You will need information from the motor nameplate throughout the life of the motor. If you ever need to size a VFD, repair a motor, replace a motor, connect a motor, correct power factor, purchase parts, or do just about anything with a motor you will need the information on the motor nameplate. Horsepower is the mechanical output of a motor.
How to check the capacitor on an electric motor?
The capacitor will have to be allowed 10 or more minutes to discharge before attempting this test again. Check the rear bell housing of the motor. Some motors have centrifugal switches used to switch the start / run capacitor (or other windings) “in” and “out” of the circuit at a specific RPM.
How to check the windings of an electric motor?
Check the windings for short circuiting to the frame. Most household appliance motors with a shorted winding will not run and will probably open the fuse or trip the circuit breaker instantly (600 volt systems are “ungrounded,” so a 600 volt motor with a shorted winding may run and not trip a fuse or circuit breaker).
How can I tell if my electric motor is working?
Make sure it is securely fastened to the frame and is not clogged with dirt and other debris. The openings in the rear metal guard need to have full and free air movement; otherwise, the motor will overheat and eventually fail. Choose the right motor for the conditions in which it will be run.
How to tell left from right side on car parts?
Tell the left from the right side on car parts with help from an expert in the automotive industry in this free video clip. Series Description: There are a lot of different things you can fix or adjust on your car yourself, which in turn will save you a lot of money that would otherwise go to a mechanic.
How to check the bearings of an electric motor?
To perform a cursory check of the bearings, place the motor on a solid surface and place one hand on the top of the motor, spin the shaft/rotor with the other hand. Closely watch, feel, and listen for any indication of rubbing, scraping, or unevenness of the spinning rotor.
How to check if an electric motor is drip proof?
Check that drip-proof motors are exposed to directed water spray or moisture, and that open motors aren’t exposed to any water or moisture at all.