Nosilati, Marco

Technology Leader, GE Grid Solutions, Italy

Nosilati, Marco

Technology Leader, GE Grid Solutions, Italy

Biography

Pollution Design & On-Site Monitoring of Insulators for AIS Disconnectors

Mr. Nosilati is an Electrical Engineer, graduated at the University of Padova with a Masters thesis in collaboration with the Helsinki University of Technology. He started his work experience in 2009 as R&D Test Engineer in Areva and he is currently the Technology Leader of air-insulated disconnectors in GE Grid Solutions. He is holder of several patent applications linked mainly to HV equipment and technological solutions for HVDC applications. He has served as a member of IEC as well as ad hoc Working Groups for DC switchgear.

Porcelain insulators are still the main type used in AC substation disconnectors and their correct dimensioning is a fundamental challenge. Real-time monitoring allows verifying any anomalous conditions as well as optimizing preventative maintenance by performing remedial measures such as washing only when necessary. This presentation reports on indications for correct design of these insulators based on IEC 60815 specifications and provides results of laboratory testing to verify performance of disconnector support insulators of varying diameters and creepage factors at different altitudes above sea level

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