I've caused my 10hp to "grunt" with a big load and it appears to slow down then get back up to speed. I've drawn my 3hp RPC down so far the potential relay kicked the start caps back in... it was at that point I knew I could not run my Enco in high speed from the 3hp RPC. The 15hp has a sizable 6 belt pulley as a flywheel and I've never heard it grunt when applying a load.
On 5/31/2012 10:45 AM, Kirk Wallace wrote: > On Thu, 2012-05-31 at 10:08 -0500, ceen...@in-front.com wrote: > ... snip >> I have not found that the rotary phase converter slows in RPM during >> high low demands as it is still an asynchronous AC motor ... > ... snip > > It's the velocity variation during a revolution that comes into play, > although I haven't measured this so I can't back this up with data. > Since only one phase produces momentum, the two generated phases draw > energy from the rotating mass and slow it down. Increasing rotating mass > increases the amount of energy available and should also increase the > amount of input current capacity to replace the converted energy. ------------------------------------------------------------------------------ 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
