Mark Koch

What’s New
Two Minute Tips
  • Defect Elimination

Condemning a Motor Using MCA™

Experience has shown that 20 to 40 percent of motor systems tested may have some sort of alarm condition. Just because a motor has exceeded the alarm limits in MCA Basic™ or MCA PRO™ it does not necessarily mean the motor will fail or should be stopped immediately. For over 30 years the dedicated staff at ALL-TEST Pro have gathered data and resources to determine when a motor will most likely fail on the most common 3-phase squirrel cage motors.

Two Minute Tips
  • Condition Monitoring

Motor Storage

One thing that is typically overlooked is how spare motors are stored. Over time, moisture, dirt, dust, and even general vibration from other sources can have a negative impact on the electrical and mechanical condition on the stored motors.

Case Studies and Stories
  • Defect Elimination

Stator Looseness

A 6.6 kV motor that is used to cool the temperature of gas after going through a gas phase polymerization process at a Petrochemical plant was experiencing abnormal symptoms. A technician conducted a vibration test and noticed an abnormal vibration...

Webinars
  • Condition Monitoring

Introduction to Electrical Signature Analysis (ESA)

Introduction to Electrical Signature Analysis (ESA). Find out how and where to implement ESA testing. Review examples of different electrical and/or mechanical issues.

Two Minute Tips
  • Condition Monitoring

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..

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