Skogsgurra
1: why the segments rise and how we can avoid this condition in future?
2:how can we be sure that the segments are in good condition?
is there any posibility that some of them cracked?
At first thanks for your advices.
We find the correct neutral position of brushes and adjust it.
and now the amp of CCW and CW of rotation are almost equal.
at the nameplate amp the brushes haven't any sparks . but when the motor operates at the 200% overload we can see little sparks under some...
Thank you for your kind ideas.yesterday we've checked the output waveform of dc drive and it was ok so we decide to indicate the correct neutral position of brushes ( it seems that original mark is not useful for spare Armature ) . as you know there are several method to do this . we decide to...
Hi
In our factory we are using high torque reversing dc motor.the specification of this motor is : Westinghouse Electric - 1250 Hp - 40/120 RPM 700 Vdc - 1540 Amp . Recently because of some malfunctions we've replace the rotor and mount spare one ( 22 ton !! ) after that we start the motor and...
