Need to convert 3 phase 480 60 hertz to European 3 phase 330 50 Hertz

[BAHLONGSHOT]

Hi , I have a customer that has purchased a machine from Turkey. The machine requires 3 phase 330 volts at 50 hertz. I have access to 3 phase 460 at 60 hertz here at the plant in the US. I can find a transformer for the voltage but that doesn't change it from 60 hz to 50 hz. Im looking at 90 FLA's total. Does anyone have any experience with this? Thanks in advance.

 

[pc1966]

Have you contacted the manufacturer to be sure it really must be 50Hz? If it has VFD for any motors it might be relatively tolerant of frequency. Voltage is a very different matter!

 

[Lucien Nunes]

Are you sure it's 330V? I'm not familiar with anything using that voltage, nor the corresponding single-phase voltage of 190. I would expect the machine to be 380V which was the standard in much of Europe and anywhere with European-derived standards for many decades.

 

[Megawatt]

Hi , I have a customer that has purchased a machine from Turkey. The machine requires 3 phase 330 volts at 50 hertz. I have access to 3 phase 460 at 60 hertz here at the plant in the US. I can find a transformer for the voltage but that doesn't change it from 60 hz to 50 hz. Im looking at 90 FLA's total. Does anyone have any experience with this? Thanks in advance.

To my knowledge I don’t think you can change the HZ but it will still work but I think that your machine will work fine. I’ve wired many European 50 hz machines and had no problems. Good luck

 

[pc1966]

Are you sure it's 330V? I'm not familiar with anything using that voltage, nor the corresponding single-phase voltage of 190. I would expect the machine to be 380V which was the standard in much of Europe and anywhere with European-derived standards for many decades.

I did wonder about that.

Maybe it is a typo and the OP means 230 phase-neutral, i.e. normal UK/EU 400V/230V system?

 

[Simon47]

Answer is to look inside the machine and see what the loads are.
At a previous day job, they got a machine delivered which was designed and procured by the chief engineer of our US parent company - who was a bit of a d-head as an engineer (read on). I wasn't personally involved, but we had to buy a transformer for it as the so-called professional engineer didn't think to have it made for a UK supply (415V/50Hz/3P) - but all the motors were on VSDs so at least frequency didn't matter. It had heaters that were 220/230V and could have been wired L-N instead of L-L, and the VSDs could have been specced as 415V input instead of whatever they were - but having the new machine re-wired and all the VSDs replaced would have cost more than the transformer. It was also a H&S nightmare as we had to have quite a bit of guarding and safeties added before we thought we could let any operators near it.
So as above, have a look at what's in it - it's quite possible that there's nothing frequency sensitive anyway.

Depending on what's in it, it may be possible to rewire some bits, possibly change taps (if you're lucky, the controls will be something like 24V and the transformer might have a suitable primary voltage, and replace a few parts (e.g. swap VSDs out). Too many variables, it might be practical to convert the machine, or it might be totally uneconomic. But if there aren't any DOL motors then it will possibly not be bothered by the frequency.