It's been about 4 years for me, and yes, bio-based oils were/are being tested/used by the larger utilities. A quick google on "bio-based transformer oil" will bring a bunch of hits.
>Hakan Falk wrote: >> Mike, >> >> Many of the high voltage transformers in >> electricity distribution are filled with oil for >> insulation and cooling purposes. >> In this case I >> belive it is mineral oils, but it is many years >> (40) since I worked with this and do not completely >trust my memory. > >They were, and 40 years ago, they were filled with >that marvelous compound that did everything exactly >right. Polychlorinatedbiphenol. > >Great stuff all in all, just had one drawback > >>SNIP __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
