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