I am right now doing some studies on the 3 phase systems and mainly motors using that and it seems really complex compared to mono-phase systems ( to me at least ) .
So since am just studying this at home i only have single phase system , but some friends told me that its possible to add 2 other phases using an AC capacitor configuration .
What calculation should i make to choose the right capacitance value with the possibility to have a COS fi closer to 1 ?
Why the motor i got is called asynchronous type ?
Am on a 230 VAC line and this is the motor's data :
You could use a transformer to get three phase in high torque applications.
You can run a small (personally had good results up to 0.75kW) 3-phase motor on a single phase net by simply adding a running capacitor.
C = 70 x kW (formula for 230/400V 50Hz 3-phase motors to run on a 230V 50Hz single phase supply)
For example a 0.37kW motor would require a 25µF cap.
You'll have to keep in mind that starting torque drops dramatically, but for pumps or other low starting torque applications it is a simple and effective solution (so forget about running an 3-phase air compressor).
Thanks i will look for a cap ,but will i still notice a differnce when i change from star to delta ? i guess star should have less current than delta configuration
Thanks i will look for a cap ,but will i still notice a differnce when i change from star to delta ? i guess star should have less current than delta configuration