What is this called

[Gregory]

I have a UniMig welder 250 singel phase welder.
There is a problem with the circuit board.
There Is a part I do not know what it is or where I can get one. Can you help me If I can get a supplier then I get in contact with them and get it shipped to me.

I will post photoes.

 

[dknguyen]

That's a transformer. Maybe someone else can help you with more detailed info.

Googling the label, I came up with this:
**broken link removed**

But I have no idea what that currency is. You might have better luck finding something more local.

 

[Pommie]

I would meter that before buying a new one. The burning on the PCB in front of it probably caused the burn marks.

Mike.

 

[Gregory]

There is 2 legs blown off.

 

[Les Jones]

In the first picture it looks like the wire has melted where it comes out of the winding about one third of the way up from the bottom pin. This does not make sense as there is no pin for it to connect to. I think the company that made the welder will be the only source. But I suspect they will only supply the complete board as a spare part.

Edit. after posting this message I noticed Greory's post #4. If two pins are missing it would explain the melted end of wire.

Les.

 

[Gregory]

That's a transformer. Maybe someone else can help you with more detailed info.

Googling the label, I came up with this:
**broken link removed**

But I have no idea what that currency is. You might have better luck finding something more local.

I went on the sight but I can not understand the language.
I hope that some wone can supply me with this item who speaks English
So near but so far
Thank you

 

[dknguyen]

I went on the sight but I can not understand the language.
I hope that some wone can supply me with this item who speaks English
So near but so far
Thank you

Keep searching using information that appears on the labels in subsequent searches. The link I sent you showed that it was from a company called Hangsing.

 

[dr pepper]

Google translate might be use to you here, you can translate the whole page.
I have a imported mig weld set, it has several ferrite transformers, it looks like they parallel them to get high enough current.

 

[gary350]

I use to repair circuit boards, one thing you need to consider, did something on the circuit board kill the transformer or has the transformer killed other parts on the circuit board. You need to inspect every part on the board then test all the ICs, transistors, diodes, mosfets, and other parts that could be fried inside without showing signs of self destruction on the outside. Check all the capacitors. Inspect resistors for cracks. Sometimes resistors cook on the bottom side where they touches the circuit board. I would never buy a new part for an old board until I know the board is good.

 

[Aleph(0)]

Gregory that's a ferrite transformer which is basically gaurnateed to be custom wound so I say manufacturer/distributor is best contact for replacement

I went on the sight but I can not understand the language.
I hope that some wone can supply me with this item who speaks English
So near but so far
Thank you

Gregory UniMig brand distributors/service centers located in predominately English language countries should be able to help you!

 

[Gregory]

That is a problem as they will not release a part for the board.
If you can find a UniMig shop that will sell the part for a 250 Uni Mig could you let me know.
Photo of the welder.
And a photo of the transformer If you can help me out.
Thank,you
Greg

 

[Aleph(0)]

That is a problem as they will not release a part for the board.

Gregory sry for that! That's symptom of _disposable society_! It's just easier for them to sell entire board or product than parts or heaven forbid train/hire REAL technicians instead of just card swappers!

So anyhow I agree! Easiest solution is finding same model welder sold low as parts! So I'm thinking Ebay and like that might help?

 

[Gregory]

I use to repair circuit boards, one thing you need to consider, did something on the circuit board kill the transformer or has the transformer killed other parts on the circuit board. You need to inspect every part on the board then test all the ICs, transistors, diodes, mosfets, and other parts that could be fried inside without showing signs of self destruction on the outside. Check all the capacitors. Inspect resistors for cracks. Sometimes resistors cook on the bottom side where they touches the circuit board. I would never buy a new part for an old board until I know the board is good.

This is what I think caused the problem.
K75T60

 

[AnalogKid]

Very few companies support "untrained" users doing component level maintenance on a high-power circuit. At best they will sell you a replacement board, but don't count on it. ebay often has boards salvaged from all kinds of equipment, so you might get lucky there. I've repaired my Panasonic TV twice with working boards pulled from units with bad displays.

There is an obviously dead resistor in front of the transformer. Are you sure the transformer has failed? Not all pin positions have to be populated.

ak

 

[Nigel Goodwin]

It's just easier for them to sell entire board or product than parts or heaven forbid train/hire REAL technicians instead of just card swappers!

Customers nowadays want the cheapest prices, they aren't prepared to pay enough to provide decent spares and service support.

 

[Aleph(0)]

Customers nowadays want the cheapest prices, they aren't prepared to pay enough to provide decent spares and service support.

Nigel Goodwin I agree! It reminds me of this parody of O.H. Perry: _We have met the enemy and they are us_