Hi all,

I'm working on a project for one of my customers and need to source a 50V 100a capacity DC power supply. Other than several I have seen across the internet from China, I'm not having much luck. It will be used in an industrial environment so will need to be robust, and can be variable up to the above V & a needs. Any help will be greatly appreciated.

From an Electronic amoeba.

 

A 5kva transformer with suitable rectifiers?
Can it be 3ph transformer? if so a 3ph bridge.
Max.

 

Hi all,

I'm working on a project for one of my customers and need to source a 50V 100a capacity DC power supply. Other than several I have seen across the internet from China, I'm not having much luck. It will be used in an industrial environment so will need to be robust, and can be variable up to the above V & a needs. Any help will be greatly appreciated.

From an Electronic amoeba.

http://www.magna-power.com/products/programmable-dc-power-supplies/ts-series
https://www.ia.omron.com/products/category/power-supplies_in-addition/power-supplies/

picbuster

 

Kepco makes all kinds of high power supplies.

 

5,000 watts ! sounds like you need a welder not a power supply... Do't know what kind of regulation/filtering you need but you might consider a welder..

 

Simple 5kw 1ph or 3ph, as the case may be, transformer, and a rectifier bank.
Max.

 

He's looking for variable also..

 

A 5kva transformer with suitable rectifiers?
Can it be 3ph transformer? if so a 3ph bridge.
Max.

Thanks Max. I will check on available power source.

 

5,000 watts ! sounds like you need a welder not a power supply... Do't know what kind of regulation/filtering you need but you might consider a welder..

Customer is currently using a welder but it is old and needs replacing. Newer models haven't been suitable. I will try and find out whyand maybe you guys can advise. Thanks

 

http://www.magna-power.com/products/programmable-dc-power-supplies/ts-series
https://www.ia.omron.com/products/category/power-supplies_in-addition/power-supplies/

picbuster

Cheers, will discuss these options with the customer.

 

Customer is currently using a welder but it is old and needs replacing. Newer models haven't been suitable.

Where is the problem with the welder power supply concept that warrants the costs of replacing it?

 

They have had several failures with the existing unit and if it goes kaput completely, then they lose their power source, so are looking to replace before that happens, or at least have an option. A bit of forward planning on their behalf.

 

Customer is currently using a welder but it is old and needs replacing. Newer models haven't been suitable. I will try and find out whyand maybe you guys can advise. Thanks

Beware of SMAW/stick welders, they are designed for the voltage to collapse on load, and retain a certain current.
Usually achieved by a magnetic shunt.
Max.

 

Cheers Max