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.
National Pump Vertical Turbine Pumps, API 610
80 Series® Engine Driven
Utah Lake Cascade Pump
Schlumberger Pump Assembly
380 Series Vertical Inline Pump with VFD
Bowl wear ring
Ultra V Series® and UltraMate®
Vertical Lathe
Close-Coupled Vertical Turbine
Impeller wear ring
Custom shapes cut from raw materials.
Super T Series® Engine Driven
Figure 1. The general arrangement of a three phase waveform.
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Vertical Lathe
SF Series®
Model 411 Horizontal Split Case
Bowl wear ring
Vertical Turbine Pumps, Deep Well
Horizontal Lathe
Computer Numerical Control Machine (CNC) at Nickerson
3800 Series, Single Stage End Suction
Nickerson Field Crew
Utah Lake Cascade Pump
Horizontal Lathe
Custom fabrication to a large part
Well Pump Installation
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Model 342A Single Stage End Suction
Frame-mount Centrifugal Pumps
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.
