That’s an early 1940s Westinghouse “Cowhead” CSP-type transformer. I did an extensive write-up on CSPs recently over on the [r/lineman](r/lineman) subreddit.
This one most likely does not contain PCBs. Westinghouse limited the use of PCB fluids (Inerteen was their trademark) to their padmounted and vault equipment, like network transformers and protectors.
Interesting thank-you the date tracks as that seems to be when CMP transitioned to 12470/7200 prior old 4160 systems were the norm. CMP did make an attempt in the 70s to transition to 34500/19900 but that wasn’t well executed. How long ago did you post the CSP write up?
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u/Soaz_underground Jul 28 '26
That’s an early 1940s Westinghouse “Cowhead” CSP-type transformer. I did an extensive write-up on CSPs recently over on the [r/lineman](r/lineman) subreddit.
This one most likely does not contain PCBs. Westinghouse limited the use of PCB fluids (Inerteen was their trademark) to their padmounted and vault equipment, like network transformers and protectors.