this cant br right?

[mswesty]

hello a collegue was asked to look at job today, single phase supply. light comercial property , which apparently needs a three phase motor to lift a very large roller door.
over the phone he talked about the lack of three phase at this premises and the customer said that there is some kind of inverter / convertor to change to three phase from single????????????!!!!!!!!!

in my minds eye this is impossible!!

im right yes??

if im wrong can sombody point me in the direction of a web site that shows this wonderful contraption??
(im used to single phase house bashing)
cheers mw

 

[johnnyb]

They do single phase to 3x phase inverters , but not sure the cost my mate,

 

[Sintra]

Check out the link. Single phase to three phase conversion (3 phase converters)

 

[jimmylaud]

hi ive used teco inverters before were a single phase input and 3 phase output motor usualy gets connected in delta depending on how the motor was wound plate on the side tells you, and then sort the control side out teco has a forrward reverse function on it so should work for your door were around £70 hope this helps

 

[jpmiff]

Hi,

generally the single phase to three phase invertors work with 230v, so 230v single phase in 230v three phase out.
your motor needs to be a dual voltage type ,230v or 400v wired up accordingly.
i use ABB invertors, 0.55kw for around £100.

jpmiff

 

[thepurple1]

I would recommend an ABB inverter in my mind its the easiest inverter to se up that I have come across.
Vacon, Danfoss and Siemens are also good but can take some setting up