waross,
I mean most recent we overhauled and rewound motors, as usual, the motors are GE D29 EMD traction motors.link below I found a sample of motor image, top image in the page...
thanks waross,
I checked all suspected things it seems every thing is ok!!
I am wondering why this problem arised at certain time and same signs in most recent motors.!!!!!????
thank you waross,
in low voltage we have no sparking but at 800v up to 1000v sparking start at leaving adge of brushes,swing onlong of brushes intermittedly,as glowing point travelling onlong brushes then disappearing and coming back in couple seconds.we checked all brush boxes alignments and...
I would like to know how we can recycle DC current to ciruit of main supply?in testing bay we have to test DC motors loaded by another DC generator and consume generated power by heating elements but recycling current could be better economicy way.what is easier way? i note that input current...
in traction motors,keeping all brushes black is an essential,if we suppose the motor that Harry641 mentioned it's motor volatge rating is 1050 V 250 A at Hi speed stage and 700v 450A at HI current stage and the motor in Hi current stage, every things is Ok"no sparking" but in Hi speed low...
