It's two miles away up on the highway. The cost would be enormous to get 3 phase out here in the woods. Just guessing based on other information I've gathered about bringing 3 phase to a shop about 50k or so to bring 3 phase to my shop. Heck they wanted 15k to connect up my other brother John's shop and the 3 phase is hanging on the pole 50' from his shop. Plus they have a minimum monthly charge that would buy a phase perfect rather fast.
John On 5/25/2012 8:13 AM, gene heskett wrote: > On Friday, May 25, 2012 09:04:33 AM John Thornton did opine: > >> It's hard to say but I "think" the 15hp motor worked the best. I've been >> running and trying different things for a 1 1/2 years so my memory is a >> bit clouded on exactly how it worked or didn't work. I do know at one >> time my workaround was to ramp up the spindle from 2k to 6k and it ran >> like that and that was on one of the 10hp motors. >> >> Do you think adding a line reactor after the rotary phase converter >> would help in any way? I can get a 3 phase 20hp one for $150 so it is >> cheap enough to try if anyone thinks it might help in any way. >> >> http://www.automationdirect.com/adc/Shopping/Catalog/Drives/GS2_%28115_- >> z-_230_-z-_460_-z-_575_VAC_V-z-Hz_Control%29/AC_Line_Reactors/LR-2020 >> >> Taking the reactor out of the VMC sure made it worse... and the scope >> trace looked horrible jagged. >> >> Just to refresh the circuit is: [ stuff in brackets ] is inside the >> machine. >> >> phase converter> [ step up transformer> commutating reactor> infeed >> unit (power supply)] > John; How far away are you from an actual 3 phase power source? Might the > one time construction costs the power peddlers want to bring it to you be > competitive when spread out over the years? In my own case, it would be > about a 3 block run out here in this cul-de-sac about 50 yards inside the > city limits. >> On 5/24/2012 8:37 PM, Jon Elson wrote: >>> John Thornton wrote: >>>> This is the third motor I've tried on this beast. The current one is >>>> a 15hp 1750 rpm very heavy built with a large multi-belt pulley on >>>> the shaft. I've tried cap combinations out the yen yang. The voltage >>>> levels I reported a while back was with different combinations of >>>> caps to balance the generated leg. >>> Did any of these motors make a difference (better or worse)? >>> >>> Jon >>> >>> ---------------------------------------------------------------------- >>> -------- 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 > > Cheers, Gene ------------------------------------------------------------------------------ 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
