Recent content by surbani

the VFD's are rated up to 240V so it is on the cusp.

you're right youve all been great guys. thank you for all your help and sorry for the thread going on and on. I have one electrician hooking everything up, as well as a guy at the transformer company that is an electrical engineer. I don't know who else to hire. Stefan

They also suggested that harmonics could be a problem with the transformer. Any suggestions?

Hi guys thanks for the replies. I'm going to try to check the nameplate voltage this afternoon. If I do get a transformer should I get an auto or isolation? This company beaverelectrical.com said they could make a custom transformer for 240 to 220. But wanted to know auto or isolation. Any...

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edison123: the problem is the machine has five motors not one. i have attached electrical drawings. stevenal: I agree with you that the machine should be suitable for NA freq and V, but it is at 60hz and they don't seem to understand. they say that 208V will work, but 220 is ideal. there...

It's a japanese machine, new, and they said it will RUN on 240 but develops vibration. It is an encrusting and forming machine so apparently that vibration causes it not to work properly.

I just don't know if it is in open delta or wye...how can I find out?

There is no neutral. The electrician was very surprised to see this...said he has only seen it once before (240 3ph no neutral)...years ago at a sawmill in quebec.

The 220V machine manufacturer says that 240V will not work. That it is too high even though it is within the 10%. Is there any way we can transform 240V to 220V? for 6.5Amps draw? Thank you for your help BIll. If you are ever in BC you should stop by www.moccia.ca

The only problem is I have another machine that is to run on 208 as well, and the manufacturer will only honor the warranty if it is connected to the correct voltage. Any suggestions for this situation? Thanks again edison123 you, and everybody else on these forums have been great helps...and...

So what are my options? I know I need a transformer but can someone show me one online that I could use? The electrician told me to go get one over 2500 VA. Basically I need to go from the 240V to 208V for 6.5 amps current. THANKS EVERYBODY FOR ALL YOUR HELP!!!

edison123 sorry for the confusion I'm not too familiar with all this stuff. I watched the electrician test it at the panel. There were three leads going into the panel, and he tested between the two solid colored ones, and between the solid color and the striped cable. All were 240V