Signature Analysis

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Articles
  • Motor Testing
  • Vibration Analysis

The Scope and Application of Electrical Signature Analysis in Windpower

Electrical Signature Analysis (ESA) was initially developed at Oak Ridge National Labs (ORNL) in the 1980s as a method for evaluating bearings and gears in motor operated valves in the nuclear power industry. In 1992, the technology was licensed into general industry for applications in utilities and commercial applications...

Webinars
  • Condition Monitoring Management & AI

Bearing Fluting Detection with Model Based Electrical Signature Analysis

In this webinar, Tümay Karaver will guide you through the intricacies of bearing fluting detection, a common type of bearing fault that often leads to costly downtime and maintenance if not detected early...

Articles
  • Lubrication
  • Vibration Analysis

Systems Energy and Emissions Analysis with Electrical Signature Analysis

There are several ways to view the impact of maintenance practices using ESA and electrical measurements, the first is the use of simple overall kilowatt readings from a power analyzer or relay monitoring system; the second is the before and after readings from an ESA device that identifies kilowatt data by defect.

Webinars
  • Motor Testing

Evaluating Mechanical Systems with Electrical and Current Signature Analysis and the Impact of Incoming Power

Rules-based ESA/MCSA systems provide immediate detection of electrical system and mechanical health without training periods and with a very high degree of accuracy on the first set of data collected regardless of load or speed in continuous or data collection applications.

Webinars
  • Motor Testing

Basics of Electrical Signature Analysis

Modern electrical signature analysis is no more challenging than vibration analysis. There are differences including using an electric motor or generator’s air gap as the transducer and evaluating an amplitude modulated signal.

Case Studies and Stories
  • Motor Testing

Performing Electrical Signature Analysis on Wind Turbines

Howard Penrose gives an overview on the motors and gearboxes found in wind turbines and goes through case study examples involving electrical signature analysis…

Five Minute Facts
  • Motor Testing

Performing Electrical Signature Analysis on Complex Machinery

What if you need to perform ESA on a motor with a lot of currents and a lot of bearings? Howard Penrose gives an overview of how to begin and what to look for…

Webinars
  • Motor Testing

Impact of the Application of Electrical Signature Analysis on Power Quality, Energy Consumption, and Environment

In this presentation we will discuss opportunities along with several case studies demonstrating before and after results of defect elimination and power quality improvements.

Two Minute Tips
  • Motor Testing

Introducing the Electric Motor System and Electrical Signature Analysis

Howard Penrose gives a brief introduction of the electrical motor system and the variety of monitoring techniques included under Electrical Signature Analysis (ESA): current signature analysis, motor current signature analysis, power signature analysis, and voltage signature analysis…

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