Case Study Slightly Loose Bearing Fits and VFD Issues in Vertical Motor with EMPATH Electrical Signature Analysis

In-place testing was performed on a 350 horsepower, 460 Vac, 1780 RPM vertical motor (Figure 1) and EMPATH detected conditions associated with bearings, rotor and early winding stress were indicated.  The motor was removed for routine overhaul and the defects were investigated.

ESA and MCSA in Relation to Vibration Analysis and other Technologies

In August 2020 I wrote an article for TheRamReview on the benefits surrounding Electrical Signature Analysis and it’s capabilities in viewing the entire system at one time (Regarding Reliability of Electric Motors: What Makes Electrical Signature Analysis Different? | THE RAM REVIEW ).  In the past the discussion surrounding MCSA and ESA were such that…

An EMPATH Day of Ease

After putting EMPATH through months and months of trials in wind turbines for transformer to complete powertrain: Utility-scale solar plant drives and transformers: Riding the rails testing locomotive generators and traction machines: Complex pipeline troubleshooting: Even evaluating commercial transformers, lighting systems and power quality issues: A well-deserved rest testing a good old pump motor running…

MotorDoc Research and Development 2021

MotorDoc LLC continues to pursue unique research into industry and utility electrical and mechanical reliability.  Present research projects include wind power, commercial/industrial ESA for transformers, ESA and related condition monitoring for solar, geothermal, and commercial/industrial systems.  Studies relate to practical application research associated with high impact academic research.  For more information contact us: Contact Us…

Windpower

MotorDoc LLC presents the EMPATH, ECMS-1, and ECMS line of data collectors and continuous monitoring Electrical Signature Analyzers (ESA) for on and off-shore wind turbine generator, transformer, and powertrain analysis.  With two decades of windpower experience on all major platform types.   For information on how we detect wye ring fractures, go to Windpower Generation…

Detect Windpower Generator and Powertrain Condition in 48 Seconds

MotorDoc LLC provides the EMPATH line of data collectors, ECMS and ECMS-1 electrical signature analysis continuous monitoring systems, sales, service and connection with one of our service provider partners.  Go to https://empathcms.com for information on EMPATH systems and https://motordoc.com for our services.  Email us directly at info@motordoc.com for a quotation.

Energy and Environment Impact from Machine Defects with EMPATH ESA

Electrical and Mechanical Defects in an electrically driven machine have a direct impact on energy consumption.  This can be from sub-standard maintenance practices, such as misalignment or belt tension, or degrading components such as bearings, belts, impellors, gears, and other parts.  In this article we will discuss a simple motor/pump combination on a Variable Frequency…