Signature Analysis
Case Studies and Stories
Electrical and Current Signature Analysis of Electric Motors and Driven Equipment
The paper identifies the approach for electrical and mechanical conditions through direct and belt coupled applications and how driven equipment, and loads are evaluated through those coupling types. We will focus on two types of technologies including a 3-phase voltage and current ESA and a single-phase CSA system. The focus will be on CSA but will distinguish what the addition of voltage as part of the measurement will provide.
- Howard Penrose
- MotorDoc LLC
Webinars
Electrical and Current Signature Analysis of Unloaded and Loaded Electric Motors
In this presentation we will demonstrate both ESA and MCSA using two separate systems comparing various loads. This will also demonstrate how expert-ESA/MCSA combined with ML/AI can both immediately detect existing conditions as well as long-term anomaly detection. We will also use the opportunity to demonstrate changes in losses in bearings under different load conditions.
- Howard Penrose
- MotorDoc LLC
Webinars
Real-Life Case Study: Sensorless Pump Performance Monitoring with Electrical Signature Analysis Technology
Join us for a deep dive into a real-world case study where we analyzed the performance of a dirty water pump using Electrical Signature Analysis (ESA)—without the need for external sensors like flow or pressure. In this session, you’ll see how our system detected low-efficiency operation, identified the pump’s operating point on the curve, and provided actionable efficiency improvement suggestions tailored to the customer’s application priorities.
- Tumay Karaver
- Artesis Technology Systems
Case Studies and Stories
Evaluating a Fan and VFD System with Motor Current Signature Analysis
Both Electrical and Current Signature Analysis (ESA/MCSA) can be used to evaluate conditions of a system and assist in preemptively mitigating defects while optimizing system efficiency based on their specific functions. In the case of this article we will focus on a simple single-phase MCSA tester and a fan system with a variable frequency drive that had a synchronous belt installed...
- Howard Penrose
- MotorDoc LLC
Articles
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...
- Howard Penrose
- MotorDoc LLC
Webinars
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...
- Tumay Karaver
- Artesis Technology Systems
Articles
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.
- Howard Penrose
- MotorDoc LLC
Webinars
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.
- Howard Penrose
- MotorDoc LLC
Webinars
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.
- Howard Penrose
- MotorDoc LLC
