Computer Numerical Control Machine (CNC) at Nickerson
Custom shapes cut from raw materials.
Submersible Turbine Pumps
Bowl wear ring
Figure 1. The general arrangement of a three phase waveform.
Schlumberger Pump Assembly
Gorman-Rupp SF SeriesĀ® Submersible Solids-handling Pump
Close-Coupled Vertical Turbine
Frame-mount Centrifugal Pumps
Nickerson Field Crew
SF SeriesĀ®
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Vertical Lathe
Figure 3. Three phase power has three identical sine waves overlapping at an offset of 2Ļ/3 radians or 120Ā°. When one phase reaches an x-intercept or node the next phase is only 30Ā° and approximately 5.6 milliseconds from reaching its crest.
Computer Numerical Control Machine (CNC) at Nickerson
Figure 2. A simple sine wave with a period of 360Ā° and an amplitude of 1. In single phase power the x-intercepts are 180Ā° from each other. A full period is 360Ā°. 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.
