Motor Testing
What Are Motor Greasing Best Practices?
In this interview, Clay discusses the steps involved in creating a structure and following the best practices for motor greasing...
- Clay Allen
- Mosaic
The Importance Behind The Addition of Annex D In IEEE Standard 43-2013
The standards working group behind the present edition of IEEE Std 43 made significant changes in the overall standard, including modifications to temperature normalization to 40°C. This was done to accommodate the many changes and observations in insulation chemistry and combinations over the past decades...
- Howard Penrose
- MotorDoc LLC
Rotor Evaluation Using MCEMAX®: In/Rush-Start/Up
The start-up of a motor is a stressful event. High current, rapid temperature rise and mechanical stress all create a perfect environment to evaluate the health of your rotor and expose any hidden anomalies...
- Noah Bethel
- PdMA Corporation
Rotor Evaluation Using MCEMAX®: Pole-Pass Frequency (Fp)
Rotor bars on the rotor of a squirrel cage induction motor act as a shorting mechanism to the magnetic flux emitted from the steel rotor laminations...
- Noah Bethel
- PdMA Corporation
Rotor Evaluation Using MCEMAX® – Fp Frequency
Pole-pass frequency (Fp) sideband evaluation is one of the more established methods of rotor evaluation utilizing the current signature analysis test...
- Noah Bethel
- PdMA Corporation
Rotor Evaluation Using MCEMAX® – The 5th Harmonic
Six independent methods of rotor evaluation can be used from the MCEMAX technology to analyze the condition of a squirrel cage AC induction motor...
- Noah Bethel
- PdMA Corporation
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
Performing a Demodulation of the Current Signal – Rotor Evaluation
Previously hidden in the noise platform of the current spectrum, now peaks related to belts, gears, fans and other machine train components can be easily identified and band alarmed...
- Noah Bethel
- PdMA Corporation
What is the Rotor Influence Check (RIC)?
Six independent methods of rotor evaluation can be used from the MCEMAX technology to analyze the condition of a squirrel cage AC induction motor...
- Noah Bethel
- PdMA Corporation