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BTU VIP70 3 Phase supply

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BTU VIP70 3 Phase supply | 20 June, 2006

This is a long shot, but can anybody advise on the supplies for a BTU oven.

It is currently in the UK and is supplied by a 415V 4 wire. That is 3 phases and a neutral. We need to ship it to our plant in Mexico where they have a 480V 3 wire supply.

The quote from BTU to do this is fairly expensive. Is this a lot of work to convert?

Any help appreciated.

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BTU VIP70 3 Phase supply | 21 June, 2006

Hi Dallen,

I do not know BTU VIP70 oven, any way make sure if it is not yet wired for 480 V 3Ph (wiring diagram), may be it needs just to reset wiring on terminal block in order to run at 480V. Best if you ask BTU.

If not, you have to buy a Transformer Elevator (external cabinet) 415V/480V Y/A 3 wire (also make sure about Hertz). I think it is the more suitable solution, but not so cheap.


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BTU VIP70 3 Phase supply | 22 June, 2006

Hi Im in the UK and have a BTU VIP70. BTU UK are normally quite helpfull, and will probably explain whats involved if you phone them ask for a guy called Tim Hogarth. My guess is it will need a new transformer and rectifier but im more electronics than electrics.

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BTU VIP70 3 Phase supply | 26 June, 2006

hi I had a hunt round this morning and found all the schematic drawings for the vip70. Have you got a copy of them? where abouts in the uk are you im in Cumbria. drawing 5061617 appears to show some different wiring configerations, but im not sure if it shows different methods of connecting a furnace up to different supplies or furnaces that have different hardware in them. let me know if you have a copy of the manual if not might be able to sort you out a copy.

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BTU VIP70 3 Phase supply | 26 June, 2006

Thanks for all the responses.

BTU has now informed that the reason it is so expensive is the oven heaters need completely rewiring and some work in the transformer area etc is required. Also, we have to pay for engineering work for them to know what they have to do.

Think we will just have to suffer the costs.

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BTU VIP70 3 Phase supply | 26 June, 2006

Have you considered selling the one you have there and buying a used one in N.A.? Might be more efficient. You are on 50Hz, right? I'm 99% sure Mexico is same as us at 60Hz.

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BTU VIP70 3 Phase supply | 27 June, 2006

Stephen has a good point. You could buy a used oven. I know of several used ones that are completely refurbished for about 15-25K. But these are BTU P-70's and P-98's.

The main problem here is frequency. Most of their ovens operate at 50 or 60 Hz, but not all. You could check the oven's transformer and see if it can be tapped for 480V. If so, re-wire for 480V primary configuration. The re-wiring of the heater plugs is very simple. You don't even need any experience to do it. All you need is the electrical drawing that shows the heater plug wiring for different voltages. I have the drawing if you need it. How much does BTU want to charge you?

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