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