Well I have convinced myself that having a standby generator of sufficient size to run the whole house is a good thing. I am now the owner of a 15Kw 2cyl deutz diesel generator. It is a 12 wire generator and at the moment it is set up for 208 120. After reading some on the different wiring schemes that you can do with a 12 wire generator including a zig-zag scheme to get single phase with 180 degree phases I think I'll just leave it at 208.
I got some prices back from the cnczone guy on transformers and he is $1800 for a 15kva and $2300 for a 20kva isolation transformer. The other guy gave me a quote for $1250 for a 30amp isolation transformer but after our discussion on the drive requirements of 21kva I passed that along to him but have not heard back. John On 6/5/2012 4:30 PM, Dave wrote: > On 6/5/2012 4:32 PM, gene heskett wrote: >> On Tuesday, June 05, 2012 04:22:05 PM John Thornton did opine: >> >> >>> This was just a cobbled up gen set with a diesel power unit like the >>> kind you see pumping water in a farmers field with a generator from a >>> river tug and a driveshaft. There was no feedback from the generator >>> other than the DMM that the throttle man watched and tried to keep it at >>> 240v... >>> >>> John >>> >> That is not normally the throttle mans job, to maintain 240 volts, that is >> the regulators job, a relatively easy one since its main load as a control >> was the exciter current being fed to the slip rings of the rotating field. >> >> Or it was in this rig at any rate. >> >> That one, having a hand throttle, would be an excellent candidate for an >> arduino running some PID sw, driving a stepper motor to stabilize its >> speed. >> >> Cheers, Gene >> > Yep, sounds like it was a jury rig setup at best. But you do what you > need > > The 55 KW natural gas generator I have has a mechanical governor for the > speed (hz) and a voltage regulator system in the control box. > > It seems to work well. No fancy newfangled CPUs or anything. ;-) > > Dave > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
