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Not Just an In-Rush

You have heard us many times discussing the effectiveness of an In-Rush/Start-Up test as a critical piece of information in assessing a variety of potential anomalies in components such as the stator, rotor, power, and load. Capturing the In-Rush/Start-Up during the start of an electric motor allows the capture of data when the motor is under extreme stress and more likely to expose anomalies. Less often discussed is that the In-Rush/Start-Up test can also be instrumental in identifying mechanical and load related defects during routine scheduled testing. The enveloping feature of the In-Rush/Start-Up test taken during steady state gives a direct look into the load fluctuations of the motor being tested. Having a baseline of the expected load characteristics for a motor provides a very easy comparison for early identification of even subtle changes in these load characteristics which could be early indications of developing faults.

To view examples of these tests and see them successfully applied in the identification of a developing pump failure Click Here.


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Not Just an In-Rush
July 27, 2015
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Fault Zones
Power Circuit Fault Zone
Power Quality Fault Zone
Rotor Fault Zone
Stator Fault Zone
Air Gap Fault Zone
Insulation Fault Zone

Case Studies
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2014 Best Asset Condition Management Program Winner
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2015 Training Schedule Posted
The PdMA® training schedule for 2015 has been posted.
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PdMA® Corporation Releases MCEGold® 2.6.2
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Announcing the New M-Series MCEMAX® Tester
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PdMA® Corporation Releases MCEGold® 2.6.1
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2012 Best Maintenance Reliability Program Winner
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Introducing MTAP3
The affordable MTAP3 offers the ability to safely capture data in many of the smallest enclosures where the MTAP2® cannot be installed.
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