Doug, Years ago, I worked in a facility where I was told General Electric made inductors for powerline carrier systems that withstood >700kV from high power transmission lines. These were made from some sort of ceramic compound, formulated for insulating properties as well as structural integrity -- there is alot of force applied in high voltage applications. Even though you indicated high power, not necessarily high voltage, perhaps the engineers at GE could give you some pointers on ceramic/concrete inductors. This facility was located in Lynchburg, Va.
Don Umbdenstock > ---------- > From: POWELL, DOUG[SMTP:[email protected]] > Reply To: POWELL, DOUG > Sent: Friday, August 20, 1999 5:39 PM > To: EMC-PSTC (E-mail) > Subject: Concrete as an insulator??? > > > Hello all, > > I have a very innovative engineer who has come up with a design idea that > uses concrete as an insulating compound in a very large inductor for a 200 > kW switching power supply. Yup, this is the stuff you buy down at the > local > building supply company. He was very proud of the idea, but until he came > up with it I think he was pretty desperate. I'm thinking I should make > him > desperate again but would like to be able to give him a clearly > reasoned-out > explanation. > > Has anyone ever had experience with using concrete or mortar in a high > voltage application? What are the concerns here? It is my understanding > that it does not actually "dry" but it cures with all the water contained > inside. > > > thanks, > > > > > -doug > > ======================================= > Douglas E. Powell, Compliance Engineer > Advanced Energy Industries, Inc. > 1625 Sharp Point Dr. > Fort Collins, Colorado 80525 USA > --------------------------------------- > 970-407-6410 (phone) > 970-407-5410 (e-fax) > mailto:[email protected] <mailto:[email protected]> > http://www.advanced-energy.com <http://www.advanced-energy.com/> > ======================================= > > > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to [email protected] > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to [email protected], > [email protected], [email protected], or > [email protected] (the list administrators). > > --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
