1950s-1960s Transformers

[Toxick]

I am working on an industrial site constructed in the 1950s & 1960s. Many of the buildings have interior transformers that are typically rectangular metal boxes, mostly raised a few inches above the floor, with dimensions ranging up to about 4'H x 4'w x 2'd but most are smaller. A few have oily residue on the floor but that might be from adjacent equipment that used oil. Is there any chance these transformers used cooling oils? Thanks.

 

[ScottyUK]

Very possible. Some cooling fluids of that vintage are pretty unpleasant. You should at least familiarise yourself with the hazards and disposal requirements associated with PCBs and other nasties like askarels. You don't want that stuff on your skin, or loose in the environment.

Any chance of some photos? Any nameplate data?


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If we learn from our mistakes I'm getting a great education!

 

[davidbeach]

Pretty obvious from looking at the transformer if it is oil cooled or an air cooled dry type.

 

[Toxick]

Thanks for the quick reply Scotty. I do not have label/plate info and I won't be back to the site for ~2-4 weeks. Hopefully, attached are photos of a small transformer and a larger (likely newer) one. URLs follow in text in case attachment doesn't work.

Tom

http://files.engineering.com/getfil...-98b4-cc772b331a8f&file=Small_transformer.jpg

http://files.engineering.com/getfil...9a54-18f1dff6dd15&file=Larger_transformer.jpg

 

[davidbeach]

Both dry type.

 

[Toxick]

Excellent! Thanks for the info.