CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Figure 3. Three phase power has three identical sine waves overlapping at an offset of 2π/3 radians or 120°. When one phase reaches an x-intercept or node the next phase is only 30° and approximately 5.6 milliseconds from reaching its crest.
Gorman-Rupp SF Series® Submersible Solids-handling Pump
Nickerson Field Crew
National Pump Vertical Turbine Pumps, API 610
Model 342A Single Stage End Suction
Horizontal Lathe
Submersible Turbine Pumps
Vertical Turbine Pumps, Deep Well
3800 Series, Single Stage End Suction
Impeller wear ring
380 Series Vertical Inline Pump with VFD
Horizontal Lathe
Figure 2. A simple sine wave with a period of 360° and an amplitude of 1. In single phase power the x-intercepts are 180° from each other. A full period is 360°. A single phase motor has a crest approximately every 16.5 milliseconds giving the motors a tendency to vibrate more, which may contribute to a shortened bearing life.
SF Series®
Utah Lake Cascade Pump
Computer Numerical Control Machine (CNC) at Nickerson
