rusty360 Posted May 2, 2020 Share Posted May 2, 2020 @UTERUS yep very true startup load will be heaps more. I've got a motor at work that pulls 400plus amps on startup once running draws around 100. Quote Link to comment Share on other sites More sharing options...
vk327 Posted May 4, 2020 Share Posted May 4, 2020 The same size or even a 3 kw single phase motor is no good on a screw type hoist, ask me iv tried it even with gearing down the drive pulleys it stalled the 3kw 4 pole motor could only lift a mazda6 on the hoist about 600mm off the ground, single phase just dont have the same torque a 3 phase motor has, @Kimjon im gonna guess that motor you have is star wound only for 400v (looks real similar to the one i had), if it could be hooked up for delta windings it could run on a single phase in three phase out 230v vsd but would lose torque due to the lower line voltage. Flick me a message if you have questions about motors and power calcs (im an industrial sparky by day) 2 2 Quote Link to comment Share on other sites More sharing options...
UTERUS Posted May 4, 2020 Share Posted May 4, 2020 Yea I had to gear mine down so slow it's comical, and it barely lifts an RX7. 1 Quote Link to comment Share on other sites More sharing options...
Yowzer Posted May 4, 2020 Share Posted May 4, 2020 Chuck a Briggs lawnmower engine on it 3 1 Quote Link to comment Share on other sites More sharing options...
tortron Posted May 4, 2020 Share Posted May 4, 2020 8 hours ago, Yowzer said: Chuck a Briggs lawnmower engine on it You would have to run it through a model T gearbox 1 Quote Link to comment Share on other sites More sharing options...
Kimjon Posted May 5, 2020 Author Share Posted May 5, 2020 13 hours ago, vk327 said: The same size or even a 3 kw single phase motor is no good on a screw type hoist, ask me iv tried it even with gearing down the drive pulleys it stalled the 3kw 4 pole motor could only lift a mazda6 on the hoist about 600mm off the ground, single phase just dont have the same torque a 3 phase motor has, @Kimjon im gonna guess that motor you have is star wound only for 400v (looks real similar to the one i had), if it could be hooked up for delta windings it could run on a single phase in three phase out 230v vsd but would lose torque due to the lower line voltage. Flick me a message if you have questions about motors and power calcs (im an industrial sparky by day) Thank you, really appreciate the reply. Quote Link to comment Share on other sites More sharing options...
Kimjon Posted May 10, 2020 Author Share Posted May 10, 2020 Here's my switch board. Is it pretty simple to connect a 3 phase outlet from here? I won't be doing the work obviously...but just after a reality check on feasibility? Quote Link to comment Share on other sites More sharing options...
UTERUS Posted May 10, 2020 Share Posted May 10, 2020 No problem at all. 1 Quote Link to comment Share on other sites More sharing options...
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