On Mon, Jan 25, 2016, at 02:17 PM, Gene Heskett wrote:
> Even unloaded, the slippage is usually north of 20 rpm & quite visible. Guess that depends on the motor. Modern industrial size (1HP and up) three-phase high efficiency induction motors often have rated speeds of 1780 or 1785 RPM, four-pole 60Hz. That means that slip at full load is 15 or 20 RPM. Slip is fairly linear with load, so a 10HP motor spinning nothing but its own cooling fans can easily have less than 1 RPM of slip. -- John Kasunich jmkasun...@fastmail.fm ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
