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.
Close-Coupled Vertical Turbine
Well Pump Installation
Computer Numerical Control Machine (CNC) at Nickerson
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Figure 1. The general arrangement of a three phase waveform.
Bowl wear ring
Custom shapes cut from raw materials.
Vertical Lathe
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Horizontal Lathe
Schlumberger Pump Assembly
Utah Lake Cascade Pump
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.
Bowl wear ring
Gorman-Rupp SF Series® Submersible Solids-handling Pump
Vertical Turbine Pumps, Deep Well
National Pump Vertical Turbine Pumps, API 610
Horizontal Lathe
Computer Numerical Control Machine (CNC) at Nickerson
Utah Lake Cascade Pump
Submersible Turbine Pumps
Ultra V Series® and UltraMate®
Impeller wear ring
Super T Series® Engine Driven
Model 342A Single Stage End Suction
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
