J
James Sweet
I picked up a fractional HP 3 phase induction motor and was surprised to
find that it contains a centrifugal switch. It looks just like the sort
used in single phase motors to control the start winding but it doesn't
seem to be connected to the windings in any way. Is the purpose to tell
a controller that the motor has been stalled? Perhaps it came from a
rollup door drive or something? Maybe this sort of thing is common but
this is the first I've encountered it.
find that it contains a centrifugal switch. It looks just like the sort
used in single phase motors to control the start winding but it doesn't
seem to be connected to the windings in any way. Is the purpose to tell
a controller that the motor has been stalled? Perhaps it came from a
rollup door drive or something? Maybe this sort of thing is common but
this is the first I've encountered it.