How to overhaul rotor of traction motor of mining electric locomotive?
The main inspection of the rotor is to check whether there is obvious damage and whether there is a virtual welding of the commutator.
The first is to look, to see if there is any particularly obvious problem, such as a burned out coil or commutator.
If there are no obvious problems, then mount the rotor on the bench and perform a high pressure test.
After passing the high voltage test, carefully check whether the copper sheet of the commutator is burned out due to virtual welding.
If not, place the electromagnet on the rotor and use a voltmeter to test whether there is a voltage between the copper sheets of the commutator to determine whether the commutator is soldered.
When all tests are completed or problems are detected in the middle, mark them with a marker in time.
The above is the maintenance process of the rotor in the DC motor maintenance.
