> > What's using all that electricity? > -- It varies from site to site. Power plants use them on the generators of course, but they also have lots of them for secondary systems - pumps and blowers etc. Transmission and distribution sites (substations) have them, as well as the mining and industry field. Of course the 15kV 3000A is about the biggest, on the small side they go down to about 480v 500A. -Denny -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist