No, it is not possible to convert a 2.4 kw single phase appliance to a 9kw 3 phase appliance. Single phase can not be converted to three phase with out considerable cost involved.
I dont know if you can actually convert the oven's wiring from 3-phase to single phase. You can, however, convert the single phase circuit that will feed the oven to a 3-phase system. To this you will need a phase converter. Now, where to purchase such an item, and how much they cost? i have no idea.
By having a transformer with 3 phase input and single phase out put
it convert the single phase in to three phase.
Houses generally run on single phase power. It would not make sense to convert single phase to three phase to run a house. Please restate the question.
Single phase can't be turned into 3-phase by any reasonable means. But on the other hand resistance heating is fairly straight forward. If only the fuse rating is high enough it might be possible to rewire a 3-phase heater to run from a single-phase source.
usually they say its possible 2 convert a 2phase supply to 3 phase.if its so then how?
No, you can not you change the wiring of a single phase appliance of 2.4 kw that works on 240 to 400 volts 3 phase 60 Hz supply. They are two different electrical systems.
You can either have an electrician modify the electronics inside (sometimes not possible) or use an external step-down transformer to convert the voltage (not designed for permanent use).Another Perspective:It all depends on the type of appliance. An appliance that uses a lot of resistance current might be a little expensive to convert. If it's a simple appliance you can easily change some motors from 240 to 120 by changing the wiring, and often controls are already running on one leg of a 240 V supply. But the transformer idea is not necessarily a good idea. It might be cheaper to simply have an electrician run a 240 V line for the appliance.
The voltage isn't a problem, you can run 220 from your house and use that to run a European appliance, the problem is whether the appliance is dependant on line HZ. European is 50HZ and US is 60HZ. If the appliance specifies 220/50HZ, it will probably give you trouble here. If it says 220V/50 or 60HZ
AC voltage conversions are usually done with transformers. Most commonly, a 3 phase 277/480v system is transformed to a 3 phase 120/208v system. You can, however transform to anything you like with the proper transformer. If you are trying to convert 480v single phase to 240v single phase, such as for home use, then ask for that type transformer. It would use only 2 phases of the 3 phase system. Using 2 phases is called single phase and there are reasons for this that are beyond the scope of this answer. 220v and 110v are field measurements of what is considered 240v and 120v when ordering equipment or applying code.
The motor cannot be altered to work on single phase power. You will either have to put in a new single phase motor or use a phase convertor box. Do a google search for phase convertor - you will find plenty.
Phase converters are mostly used to convert single phase electricity into multiple phases or to convert multiple phases into one. They are usually installed to provide three phase electricity where an individual may not get it otherwise.