Hammax PSU 13.8V Transformer

[9w2tzw]

Hi,
recently i got one Hammax 13.8V 30amps PSU which has its secondary transformer near filter capacitor blow.The problem its, the PSU didnt had any schematic available and the blowed transformer didnt had any identification for replacement.Could anyone help me with this problem? I had attached picture of the transformer below.





Any helps are most welcomed.Thanks

[budm]

Re: Hammax PSU 13.8V Transformer

Is the yellow Mylar transformer wire wrapping show any sign of burn? It looks to me like there was some kind of conductor touched the two pins of the transformer and blown to pieces.

[9w2tzw]

Re: Hammax PSU 13.8V Transformer

Is the yellow Mylar transformer wire wrapping show any sign of burn? It looks to me like there was some kind of conductor touched the two pins of the transformer and blown to pieces.

yeah, i thought so....closer lookup, i found that the transformer wire itself had one of the wire shorted to other terminal.....since i could not get any schematic , transformer reference for replacement, is there any guide to replace it?? thanks.

[budm]

Re: Hammax PSU 13.8V Transformer

The transformer may be OK, you have to use the ringer tester to test the transformer. I can see that the magnetic wires wrapped to the posts/pins are still OK. Try cleaning off the carbon deposit so you can take good closed up pictures of those pins.
Cabn we see the whole top side and the bottom side of the board?

[ben7]

Re: Hammax PSU 13.8V Transformer

Doesn't look good ... probably the switching transistors' driving transformer. Test the switching transistors on the heatsink in your picture. (you can just barely see the heatsink and two transistors mounted on it)