CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
380 Series Vertical Inline Pump with VFD
Figure 1. The general arrangement of a three phase waveform.
Model 342A Single Stage End Suction
Custom shapes cut from raw materials.
Submersible Turbine Pumps
Gorman-Rupp SF Series® Submersible Solids-handling Pump
Close-Coupled Vertical Turbine
Vertical Lathe
Schlumberger Pump Assembly
3800 Series, Single Stage End Suction
Bowl wear ring
National Pump Vertical Turbine Pumps, API 610
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Horizontal Lathe
Bowl wear ring
Utah Lake Cascade Pump
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.
Frame-mount Centrifugal Pumps
Horizontal Lathe
Horizontal Lathe
Impeller wear ring
Super T Series® Engine Driven
SF Series®
Ultra V Series® and UltraMate®
Computer Numerical Control Machine (CNC) at Nickerson
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.
