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.
Machinist at Nickerson Company running a state-of-the-art CNC machine.
380 Series Vertical Inline Pump with VFD
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Horizontal Lathe
Nickerson Field Crew
Custom shapes cut from raw materials.
Submersible Turbine Pumps
Horizontal Lathe
Vertical Lathe
National Pump Vertical Turbine Pumps, API 610
Computer Numerical Control Machine (CNC) at Nickerson
Schlumberger Pump Assembly
80 Series® Engine Driven
Bowl wear ring
Impeller wear ring
Vertical Lathe
Close-Coupled Vertical Turbine
Well Pump Installation
3800 Series, Single Stage End Suction
Model 411 Horizontal Split Case
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Utah Lake Cascade Pump
SF Series®
Vertical Turbine Pumps, Deep Well
Bowl wear ring
Figure 1. The general arrangement of a three phase waveform.
Horizontal Lathe
Frame-mount Centrifugal Pumps
Ultra V Series® and UltraMate®
Super T Series® Engine Driven
Model 342A Single Stage End Suction
Gorman-Rupp SF Series® Submersible Solids-handling Pump
Computer Numerical Control Machine (CNC) at Nickerson
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.
Custom fabrication to a large part
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
