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