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