You can, but the normal technique would be to reconnect the motor from star to
delta, which would then give you a 240V three phase motor. Most dual voltage
motors will have a diagram in or on the terminal box (it will have 6 terminals
if it is rewirable)
If the motor has been build permanent star, the star point can sometimes be
found and separated so that the windings can be reconnected in delta.
Alas these motors are permanent star -
Re butchering a permanent star to a delta
Since delta uses more current would the windings necessarily take the extra
current if I "hacked" it to a delta?
The extra current comes because the windings are effectively in parallel
rather than in series. Same current and voltage for the windings but
SQRT 3 times the voltage and
1/SQRT 3 times the current
for the whole motor.
of the 4 motors on the mill
one is dual voltage already (suds) one I have a cheap replacement (vertical)
one is overspec and i'm not in rush for (horizontal arbour). The crucial one
is the horizontal feed. for this I have found the star point and it "seems"
straight forward to connect up as delta. Is there a way to get the physical
orientation out of kilter with the electrical topology or will it all come
out in the direction of rotation?
Quick rewind on that to avoid unnecessary release of magic smoke...
Mark the junction box ends of the windings A1,B1, C1
Using a meter, battery and bell, electric fencer and small child etc:-
Mark the corresponding opposite (ex-starpoint) ends of the windings A2, B2, C2
If you accidentally connected a winding the wrong way round (say A2-B2, B1-C1)
then the motor will draw a lot of current, generate little torque and get
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