Hi all,
I'm bringing an old woodworking machine to Australia that I owned and used in USA (prior to moving down under). The unit is a Woodmaster 725 which originally had a 7.5 HP, 1750 rpm, single phase 60 hz, 220v motor (which will not work in Oz at 50hz).
I will be using this unit at a residential property that has a 50amp 220V single phase power supply available.
I'm interested in running a single phase to three phase VFD and as large a 3 phase motor as possible given the input power supply I have (ideally 5.5kw / 7.5 Hp) but i'm flexible.
The machine uses a simple belt drive from the motor to the cutter-head so I will be able to fit most motors into the unit and can gear it to suit my desired cutter-head speed using either a 1400 or 2800 rpm motor and appropriate pulleys.
However, i'm having a hard time putting together all the numbers including weather or not I may need a voltage converter to jump 220v to 415v prior to bringing that into the VFD. Additionally, what ratings i'll need from the VFD to run the motor I end up selecting.
Perhaps i'm making this all too complicated and I should stick with as large a single phase motor as I can get (i know Leeson makes a 50hz 5hp single phase unit) but the idea of running 3 phase and having the comfort of a "soft start" power up is very attractive and is my first choice if I can make it work.
Can anyone help me sort out what might be the best option for this type of application?
Many thanks in advance!
I'm bringing an old woodworking machine to Australia that I owned and used in USA (prior to moving down under). The unit is a Woodmaster 725 which originally had a 7.5 HP, 1750 rpm, single phase 60 hz, 220v motor (which will not work in Oz at 50hz).
I will be using this unit at a residential property that has a 50amp 220V single phase power supply available.
I'm interested in running a single phase to three phase VFD and as large a 3 phase motor as possible given the input power supply I have (ideally 5.5kw / 7.5 Hp) but i'm flexible.
The machine uses a simple belt drive from the motor to the cutter-head so I will be able to fit most motors into the unit and can gear it to suit my desired cutter-head speed using either a 1400 or 2800 rpm motor and appropriate pulleys.
However, i'm having a hard time putting together all the numbers including weather or not I may need a voltage converter to jump 220v to 415v prior to bringing that into the VFD. Additionally, what ratings i'll need from the VFD to run the motor I end up selecting.
Perhaps i'm making this all too complicated and I should stick with as large a single phase motor as I can get (i know Leeson makes a 50hz 5hp single phase unit) but the idea of running 3 phase and having the comfort of a "soft start" power up is very attractive and is my first choice if I can make it work.
Can anyone help me sort out what might be the best option for this type of application?
Many thanks in advance!