CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Model 411 Horizontal Split Case
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
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.
Ultra V Series® and UltraMate®
Figure 1. The general arrangement of a three phase waveform.
380 Series Vertical Inline Pump with VFD
Horizontal Lathe
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Custom fabrication to a large part
Model 342A Single Stage End Suction
Utah Lake Cascade Pump
Well Pump Installation
Horizontal Lathe
SF Series®
Impeller wear ring
Close-Coupled Vertical Turbine
Impeller wear ring
Computer Numerical Control Machine (CNC) at Nickerson
3800 Series, Single Stage End Suction
Vertical Turbine Pumps, Deep Well
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.
National Pump Vertical Turbine Pumps, API 610
Bowl wear ring
Submersible Turbine Pumps
Vertical Lathe
Gorman-Rupp SF Series® Submersible Solids-handling Pump
