Buck & Boost Transformer on a welder

[augie47]

Anyone aware of any problem using a buck n boost transformer on a welder.
Customer has a welder (unknown type) & manufacturer insists it must have a 240v input. His system is 208. Exact welder current is unknown but supplier asks for a 50 amp ciruit. B&B selected has a 62.5 amp rated secondary current.

 

[gjgish]

Many welders have internal jumpers to allow for adjustments to match incoming voltage, check this first.

 

[Little Bill]

I put a B&B on a heater once and it worked well. It also needed 240V from 208V.

 

[augie47]

I've installed a few over the years, mostly on tanning beds, bu was curious about them on welders due to the nature of the load.

 

[James L]

I'm curious about the nature of the load, what about it could potentially be problematic?

No neutral, right?

 

[augie47]

Question how inrush current should be addressed

 

[junkhound]

manufacturer insists it must have a 240v input.

WHY?? Only reason I could se is if it is a welder with high frequency stabilization If that the case, you could add a smaller internal boost transformer for that circuit. zOr even just add in a 28V secondary in series with the internal cirduit.

Of course, no longer listed, etc. etc.....

 

[kwired]

Question how inrush current should be addressed

Your autotransformer will likely act as a line reactor and lessen inrush current.