Two Minute Tips
Troubleshooting the Rotor and Air Gap on a De-energized Motor
Today we look at troubleshooting techniques and considerations on a de-energized motor for the rotor and air gap fault zones. One of the measurements taken during the five-minute MCE® standard test is inductance, and with the three phases of inductance, inductive imbalance is calculated.
- Noah Bethel
- PdMA Corporation
What Failed Demulsibility Results Mean
Lubricants and water have a natural tendency to separate because most basestock molecules are non-polar, while water molecules are polar and will seek each other out instead of mixing with the basestock..
- Evan Zabawski
- TestOil
Troubleshooting a De-energized Motor
In this tip we look at troubleshooting techniques and considerations when a motor is not running (de-energized), requiring controlled test signals to be sent into the motor..
- Noah Bethel
- PdMA Corporation
Why is a Crystal IR Lens not Suitable for Industrial Applications?
Some manufacturers of crystal infrared windows claim their products are “Arc Resistant”!! This is a very dangerous statement to make especially when we already know that crystals cannot take any form of impact,..
- Martin Robinson
- IRISS Inc.
Designing a Wind Turbine: Dealing with Resonance
Whenever the natural frequency of a turbine tower meets the rotor or blade frequency, it oscillates. It has a resonance. How do we avoid it…
- Partha Ravi
- Suzlon Energy Australia
Avoid Danger Zones with Wireless Sensors
Minimizing contact with dangerous work areas is one of the simplest ways to keep personnel safe. With the implementation of reliability solutions such as remote condition monitoring sensors, measurements can be recorded from a distance, eliminating the need for employees to enter danger zones...
- Gregory Perry
- Fluke Corporation
Troubleshooting a Running Motor
This tip discusses troubleshooting the motor and machine train with the motor still running. The fault zones specific to the physical motor are the stator, rotor and airgap....
- Noah Bethel
- PdMA Corporation
Four Ways Soft Foot Affects Machinery
Soft foot is a condition that occurs when rotating machinery is positioned incorrectly ─ specifically, when one or more of the “feet” of a machine’s base, frame, or soleplate are not making the same point contact as the others...
Surface Morphology of Railroad Tracks
Surface morphology is a detailed study of a surface. We studied the surfaces of railroad tracks and found that using analytical imaging helps us see what we cannot see with our naked eyes…
- Ashish Arora
- Institute of Noise & Vibration