Figure 1. The general arrangement of a three phase waveform.
Well Pump Installation
Impeller wear ring
Horizontal Lathe
Frame-mount Centrifugal Pumps
Bowl wear ring
Utah Lake Cascade Pump
National Pump Vertical Turbine Pumps, API 610
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Model 342A Single Stage End Suction
Custom shapes cut from raw materials.
Schlumberger Pump Assembly
80 Series® Engine Driven
380 Series Vertical Inline Pump with VFD
Computer Numerical Control Machine (CNC) at Nickerson
Machinist at Nickerson Company running a state-of-the-art CNC machine.
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.
Vertical Turbine Pumps, Deep Well
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Computer Numerical Control Machine (CNC) at Nickerson
Horizontal Lathe
Gorman-Rupp SF Series® Submersible Solids-handling Pump
Vertical Lathe
Submersible Turbine Pumps
Utah Lake Cascade Pump
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.
