78454 - Electrical Assets Management M

Learning outcomes

At the end of the course students own a knowledge of the management techniques of electrical assets in the framework of the issues related to the processes of management and maintenance of electric power systems, starting with technical-economical and power quality aspects; they are capable of developing then, in particular, diagnostic methodologies based on health index evaluation, reliability estimates and life modelling, the concepts of data mining and quality systems.

Course contents

• Paper/oil insulated systems
  
• Power cables: typical failure modes. Global diagnostic tools (dissipation factor, dielectric spectroscopy, dissolved gas analysis). Detection of partial discharges.Water trees and their detection.
• The electrical insulation system of power transformers: cellulose and mineral oil, and their deterioration due to thermal aging in the presence of catalysts. Techniques for transformer drying. Bulk and local diagnostic techniques for transformer, bushings and on-load tap changers.
• Insulation system of rotating machines: resin rich, VPI and global VPI, conductive armor tape, stress control system, bracing systems. Aging mechanisms and typical failure modes. Bulk diagnostic tool and partial discharge detection online and offline.
  

Readings/Bibliography

Slides and notes provided by the teacher.

The documents are available for download on IOL.

Teaching methods

About 30% of the course consists of lab experiences.

Assessment methods

Oral examination

Teaching tools

The high voltage equipment in the lab. of innovation technology will be used to show how to use diagnostic systems.

Office hours

See the website of Andrea Cavallini