“NSF/ANSI 61.”Ā NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Horizontal Lathe
Gorman-Rupp SF SeriesĀ® Submersible Solids-handling Pump
Utah Lake Cascade Pump
Horizontal Lathe
Model 342A Single Stage End Suction
Schlumberger Pump Assembly
Model 411 Horizontal Split Case
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.
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Vertical Turbine Pumps, Deep Well
Frame-mount Centrifugal Pumps
Super T SeriesĀ® Engine Driven
80 SeriesĀ® Engine Driven
Vertical Lathe
Bowl wear ring
Bowl wear ring
Figure 1. The general arrangement of a three phase waveform.
Machinist at Nickerson Company running a state-of-the-art CNC machine.
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.
