I know there are some beefy servo motors of several HP, but at some point the gauss of the strongest permanent magnet field can be passed buy a series connected wound field and armature. Just wondering about where this point of diminishing returns occurs. I assume armature current and gauss should equal field current in the series motor and gauss in the permanent magnet motor, so I guess my question is, how many amps in the armature before the gauss in the armature is as strong as the permanent magnet field? 100amps? 200? 400? They dont make a permanent magnet motor strong enough to use in a fork lift, for instance, right?
18 years ago