Watching the Invisible – Rotor Torsional Vibration Measurements Using Vorso Transducers

The presentation covers the physical principles behind the operation of the eddy current transducer system, outlines the steps for successful implementation of measurements on industrial machines and provides an overview of sample project results.

• Thursday, December 12 | 3:00pm - 4:00pm EST

• Piotr Mialkowski
• Baker Hughes

Putting the Simple Back into Viscosity

Simply stated, viscosity is defined as the internal resistance of a fluid to flow. That doesn’t sound too difficult, does it?

• John Sander
• Lubrication Engineers

Rotor Bar Analysis Using Electrical Signature Analysis

Broken or fractured rotor bars are found as elevated Pole Pass Frequency (PPF) sidebands of line fre- quency (LF). PPF is calculated using the synchronous speed minus the running speed times the number of poles..

• Mark Koch
• ALL-TEST Pro, LLC

Rotor Anomalies

In this interview, Don will share how to identify and confirm motor anomalies with electric motor testing. Listen to Don as he shares is background knowledge in Motor Testing…

• Don Donofrio
• The Snell Group

Evaluation of Wound Rotor Motor with Electrical Signature Analysis

The primary difference between an induction motor and a wound rotor motor is that the rotor has windings, slip rings and a variable resistance in order to vary speed or soft start an application...

• Howard Penrose
• MotorDoc LLC

Large Electric Motor Reliability: What Did the Studies Really Say?

One of the most frequently quoted studies related to electric motor reliability is a 1983 Electric Power Research Institute (EPRI) project performed by General Electric...

• Howard Penrose
• MotorDoc LLC