Hi Adam, Thanks - I will be looking over those sites. I am amazed that people sell 50MVA transformers on the used market!! I guess it makes sense (after all, they sell airliners used). Sean On Wed, Jun 18, 2008 at 10:42 PM, M. Adam Davis wrote: > My first attempt would be to look for power distribution manufacturers: > > http://www.google.com/search?q=power%20distribution%20equipment > > In this case the first link is to > http://www.tucsontransformer.com/ > > They have pictures for a variety of (used?) equipment, which is useful > in and of itself. > > Looking further, though, they list the manufacturer of each piece, > some of which are: > http://www.uscopower.com/ > http://www.royalswitchgear.com/ > http://www.southernstatesllc.com/ > http://www.morpac.com/ (Also equipment for stringing lines) > http://www.sandc.com/ > http://www.powellind.com/products_page2.asp?MenuCategory=2&MenuPosition=1 > http://w1.siemens.com > http://www.abb.com/ > http://www.ge.com/products_services/electrical_distribution.html > http://www.gelearningcentral.com/lms/login/index.php <-- Learning center...? > http://www.hubbellpowersystems.com/ > > I imagine if you do that with a few distributers (or just looked at > the nameplates of equipment you pass) then you'll gain a much larger > inventory of links to manufacturers, most of whom post whitepapers, > app notes, etc. > > -Adam > > > > > > On Wed, Jun 18, 2008 at 9:40 PM, Sean Breheny wrote: >> Hi all, >> >> Can anyone point me to a web site which describes details about the >> power distribution network (preferably in the US)? Specifically, I'd >> like to be able to identify some of the equipment commonly seen on >> utility polls and in substations. I'm not looking for a map of the >> actual network (i.e. something which is likely not published for >> security reasons) but just detailed descriptions about the different >> components, what they look like, how they work, etc. >> >> I am familiar with the basics but recently I came across some >> equipment which had been left (unenergized) at the base of a poll. One >> of the items was what I now know is called a fuse cutout. I had often >> seen them at a distance and assumed they were circuit breakers. Upon >> looking at it closely, I couldn't identify any circuit-breaker >> mechanism - it looked like a simple switch. Searches for "switch" and >> "circuit breaker" didn't yield any relevant results. I finally >> stumbled upon the correct term and then found drawings and >> explanations. I'd like to do the same for some other items I've seen >> but have not known what they are. >> >> Thanks in advance, >> >> Sean >> -- >> http://www.piclist.com PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> > > > > -- > EARTH DAY 2008 > Tuesday April 22 > Save Money * Save Oil * Save Lives * Save the Planet > http://www.driveslowly.org > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist