Figure 1. The general arrangement of a three phase waveform.
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
3800 Series, Single Stage End Suction
Impeller wear ring
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.
Submersible Turbine Pumps
Bowl wear ring
Bowl wear ring
Impeller wear ring
Model 342A Single Stage End Suction
Close-Coupled Vertical Turbine
380 Series Vertical Inline Pump with VFD
Custom shapes cut from raw materials.
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.
Utah Lake Cascade Pump
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Schlumberger Pump Assembly
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
