8KW single phase Burner

[nishantha@]

I need to get a way to connect single phase burner (36A) by three phase. it means , if there is any phase loss in L1 , it should work with L2 without delay. also L2 loss it work with L3 or L1. Do you have any idea?

 

[Marvo]

When you say burner, is this a heater element? I've given you full permissions so you can attach a picture or give us a link to the specific machine you're working on.

 

[nishantha@]

Somsit Co.,Ltd. - SS Furnace 1900 Celsius ??????????
Please find the above details for the burner.

 

[Engineer54]

I need to get a way to connect single phase burner (36A) by three phase. it means , if there is any phase loss in L1 , it should work with L2 without delay. also L2 loss it work with L3 or L1. Do you have any idea?

Exactly how do you think you'll be able to achieve that?? Why or for what reason, would you loose L1 or any of the other phases??

 

[RogertheBodger]

Maybe something like this:-

Auto Phase Selector Switches - Automatic Electronic Phase Switcher PEF-319 and Automatic Phase Selector Manufacturer & Exporter from Delhi, India

Although the current rating of these is a little small for your requirements, it may be a good place to start looking, not sure what you are looking for, or why, more information on the type of supply you have would be good.

 

[Marvo]

^^^Roger's suggestion would do what you're looking for although I've never seen one required on a benchtop furnace before, they're not usually classed as critical devices. The problem will always be that any fault that's likely to cause the failure or disconnection of one phase is highly likely to cause the other phases to disconnect in short order when the backup supply is switched.

 

[nishantha@]

Roger`s suggestion is ideal for this. only problem is it gives 30A. starting amperage for burner indicated as 31A. Can I use it without considering this. Is there anyway to use 40A contactors?
thanks mavro for your ideas also.