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.
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Super T Series® Engine Driven
Well Pump Installation
SF Series®
Nickerson Field Crew
Vertical Turbine Pumps, Deep Well
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Figure 1. The general arrangement of a three phase waveform.
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.
Utah Lake Cascade Pump
Computer Numerical Control Machine (CNC) at Nickerson
Model 342A Single Stage End Suction
Model 411 Horizontal Split Case
3800 Series, Single Stage End Suction
Submersible Turbine Pumps
Horizontal Lathe
Close-Coupled Vertical Turbine
380 Series Vertical Inline Pump with VFD
Bowl wear ring
Frame-mount Centrifugal Pumps
Vertical Lathe
Horizontal Lathe
Impeller wear ring
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Gorman-Rupp SF Series® Submersible Solids-handling Pump
Horizontal Lathe
Computer Numerical Control Machine (CNC) at Nickerson
