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.
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
Custom fabrication to a large part
Bowl wear ring
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.
Impeller wear ring
Nickerson Field Crew
Frame-mount Centrifugal Pumps
National Pump Vertical Turbine Pumps, API 610
Gorman-Rupp SF Series® Submersible Solids-handling Pump
Model 411 Horizontal Split Case
Ultra V Series® and UltraMate®
Vertical Turbine Pumps, Deep Well
Vertical Lathe
Bowl wear ring
Horizontal Lathe
Submersible Turbine Pumps
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Figure 1. The general arrangement of a three phase waveform.
Computer Numerical Control Machine (CNC) at Nickerson
3800 Series, Single Stage End Suction
Well Pump Installation
SF Series®
Close-Coupled Vertical Turbine
Computer Numerical Control Machine (CNC) at Nickerson
80 Series® Engine Driven
Super T Series® Engine Driven
Horizontal Lathe
Machinist at Nickerson Company running a state-of-the-art CNC machine.
