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: Understanding the Drivetrain and ESANew!!
How drivetrain knowledge supports wind turbine diagnosis, and how ESA assesses electrical and mechanical conditions from one suitable measurement location.
TRIPOD Condition Monitoring Academy Launched (Japanese)
TRIPOD Corporation has launched technical learning materials covering the foundations of equipment condition monitoring.
DFIG Wind Turbines: Failure Modes and Detection Methods (Japanese)
An introduction to the rotor winding neutral-point ring, or wye ring, in doubly fed induction generators.
The Air Gap: Where Electrical and Mechanical Energy Meet (Japanese)
How electromagnetic interaction across the air gap transfers energy between the stator and rotor.
ESA Applications and Field Experience | TRIPOD Corporation
ESA diagnostic experience across industries, equipment types and detected anomalies in Japan.
Electrical Signature Analysis: Origins and Related Techniques
The origins of ESA and its relationship to current, voltage and power quality analysis. Read in English.
Why Vibration Specialists Should Consider ESA (Japanese)
How experience in vibration diagnostics can provide a foundation for understanding and applying ESA.
The Physical Basis of ESA and Its Differences from Vibration Diagnostics (Japanese)
A comparison of the physical principles and diagnostic information underlying vibration analysis and ESA.
Vibration Diagnostics and ESA: Mechanical and Electrical Analogies (Japanese)
How mechanical and electrical analogies help explain the complementary roles of vibration diagnostics and ESA.
Equipment Deterioration and Energy Loss: The ESA Perspective (Japanese)
Equipment deterioration can increase energy consumption as well as the risk of shutdown. This article considers that relationship.