I think I've found the answer to my problems:
The original General Electric GP200 motor comes with angled brushes. Many years ago somebody decided it was too hard to change brushes with this configuration and perpendicular brush holders were installed. The angled brushes had a much bigger...
See attached graph for current:
This is based on 1 hour average over the past 9 months.
Point 1 was the shutdown during which the 2 drives were replaced from DCS500 to DCS800
Point 2 was when the flashover had occured.
The interesting thing is though if I arrange the current from highest to...
Hi Guys,
I've recently replaced two DC Drives (ABB DCS800) driving a single DC motor. The plan is to upgrade the motor to a bigger one to cater for production increase - however it hasn't yet arrived so it's only the new drives installed at present.
The current motor is an old GE 2000 HP...
