How To Test An Electric Motor Armature

However if the motor design has external brush holders you can unscrew the brush caps and remove the brushes.

How to test an electric motor armature. Test the first set of wires. Perform a check of the bearings. 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. Check winding insulation for.

Look at the bearings on the top and bottom parts of the casing to see if they show signs of wear. To check the condition of the armature windings the armature will probably have to be removed from the motor. Closely watch feel and listen for any indication of rubbing scraping or unevenness of the spinning rotor. These are fitted to each end of the motor where the armature sits.

If they have grooves or feel pitted they need replacing. Here are three quick checks you can perform with a volt ohm meter to test a dc motor armature winding to determine if a motor armature is functioning properly. Feel them using your fingers. Check for shorts or open armature windings by touching one test lead to one commutator the grooved copper section that contacts the brushes segment and the other test lead to another segment.

New dc brushless motor introducing a robust dc brushless motor and gearbox combinations. Remove all power from the motor and isolate the circuit. Compare each segment with every other segment and look for either open infinity ohms or shorted zero ohms armature windings. If they are smooth then they are fine.

Take your multimeter and set it to ohms. Lift the armature from the lower casing. 180 degree resistance to check the condition of the armature windings the armature will need to be removed from the motor. Tag the circuit breaker to prevent accidental.

How to test electric motor windings step 1. The new brushless motor is maintenance free highly reliable and has a life of 20 000 hours. The white wire is called the run wire. However if the motor design has external brush holders you can unscrew the brush caps and remove the brushes.

Depending upon brush size this may allow access to the commutator without removing the armature from the motor.