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