When it trips it is so fast you can't see any change on the meter, if only I had an analog meter I could watch the needle swing.
John On 5/29/2012 12:14 PM, Jon Elson wrote: > John Thornton wrote: >> I spent the day swapping out the 15hp idler in the RPC for my 10hp idler >> (much quieter by far) and balancing the RPC per the directions in the >> Fitch pdf. I did notice that my Vac and Vbc was reversed from his chart >> no matter what I tried. In the end I had Vab 244, Vac 252, Vbc 252, Va >> 122, Vb 122, Vc 212 with c being the generated leg. >> > Well, this is a LOT closer to perfect. >> http://www.practicalmachinist.com/FitchWConverter.pdf >> >> I did a test run and it would take a S3000 M3 without an error, above >> that it would error out. Then I remembered that I had the taps wrong on >> the step up transformer. I changed them from 208 to 240 and it would >> error out at S2000. I moved the taps to the 220 lugs but ran out of time >> to test it. >> > Well, you need to have the meter set up and see what happens to the > voltages when it > is near the tripping point. If the voltages are shifting during spindle > start-up, especially > the generated leg is sagging, then you may need a bigger idler motor, or > possibly > the caps need to be optimized for the high-load condition, not the idle > condition. > > 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
