I must be missing something here. If there are two DC drive motors (one per wheel I assume) then one of the motors leads could be reversed to get them driving in the same direction?
I should have added this in my first post. The reason I would steer away from mechanical switches is the confusion factor to someone who not as knowedgeable. At work we have two main switch gears that are set up to swap around. There is always confusion when different disconnects have to be...
Assuming that you need speed control of the motors, and they have identical data plates, I do not see a problem as long as the contactors are electricaly interlocked and would even consider mechanicaly interlocked contactors to prevent improper operation. I don't think I would try using only...
The motor should sit on a concrete pad. It should be prevented from any movement and provided a stable base for the machine, in most applications. If this is infesable then a steel frame of one inch steel that is solidly mounted to the floor. From the original description I thought that maybe...
This size of motor is out of my range of experience. The idea seems foolish to me but I thought there must be some justification. If there is a rigid coupling then it does not make any sense to me but someone made the decision for the unorthodox installation and must have had a reason. I am sure...
itsmoked, I had in an earlier post but not in my last post included that it was a screw compressor. I only included my experience because these two machines are similar in many ways even though mine are almost a scale factor of 10 larger in size. With my liquid ammonia cooling injection...
If the motor is wired right then at transition to delta there should not be an appreciable increase of current that you can see with your clamp on ammeter as long as the motor is turning fast enough. My problem with the refrigeration compressor was the motor load when the compressor slide valve...
I had the same problem on one of my compressors. Main CB tripping at transition. The problem was as Marke said in his post, the motor was not turning fast enough in star at transition. This was a refrigeration motor so I will not go in depth of the cure. I am not real good with CB's but most...
Having beens through the wringer with star/delta starters in the not too distant past, do you have closed or open transition starting? What is your transition time?
