On Sat, 2012-12-08 at 23:56 -0500, Gene Heskett wrote: > On Saturday 08 December 2012 23:49:28 Jon Elson did opine: > > > Gene, > > > > You can get aircraft breakers, designed for 32 V DC, and some are > > quite small. They have push/pull kinds that pop out when tripped, > > and bat handle types used as on/off switches, too. New can be > > expensive, but they may be available on the surplus market. > > I have a few. > > > > Jon > > That too might be a possibility, but not until I have explored the options > for some sort of an excessive pid.error out shutdown that works fast enough > to save the fuse 90% or more of the time. My previous lashup using comp > worked well about 75% of the time. > > OTOH, tripping a breaker the first 100 times is generally free. Once the > breaker has been paid for... And at this current level, it really should > last a lot longer than that. > > Cheers, Gene
Many years ago I was using a Heinemann magnetic breaker in series with an I^2R fuse to protect a pair of SCR's. On a fault the breaker always beat the fuse thereby saving rather expensive fuses. Dave ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
