Electrical Signature Analysis (ESA)
About These Articles
ESA principles, application conditions and the use of current and voltage signatures to assess equipment condition.
Most articles below are in Japanese. Japanese-language articles link directly to their Japanese pages.
Wind Turbine Diagnostics and Condition Monitoring with ESA (Japanese)
June 7, 2026
An introduction to wind power diagnostic services provided in cooperation with our sales partner, WEST JEC.
ESA: Application Scope and Diagnostic Value (Japanese)
June 7, 2026
The range of equipment that can be assessed using ESA, including three-phase AC motors and generators.
The Motor as a Sensor: Principles of Electrical Signature Analysis (Japanese)
June 7, 2026
How motor air-gap interactions, amplitude modulation and FFT analysis help reveal changes in equipment condition.
Equipment Diagnostics: Foundations of Predictive Maintenance and Condition Monitoring (Japanese)
June 7, 2026
The purpose of equipment diagnostics in preventing unexpected failures at factories, power plants and infrastructure facilities.