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