Doble Partial Discharge Tutorial

Presented at the 2010 Doble Client Conference by G. Matthew Kennedy and Alan Wilson of Doble.
Aprox. 150 minutes

This Tutorial Includes:

Introduction to the basics: What are partial discharges and why are they important?

• Partial discharges: causes and consequences
• Examples of failures concentrating on Transformers, Machines, GIS, Cables

How a partial discharge develops physical changes that allow detection

• Indirect methods using heat, light, sound, vibration, chemical changes and radiated electromagnetic waves

Applications of PD techniques

• Measuring the electrical signals on line- using traveling waves and capacitance coupling in cables, machines and transformers and using electromagnetic probes to detect UHF radiation in transformers and GIS.
• Off-line techniques used in the field