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