Conference Agenda

Session

A3-3: SF6 replacement in switchgear by natural origin gases

Time:

Tuesday, 30/Sept/2025:

10:30am - 12:00pm

Location: Room 519A

Session Topics:

PS3: CLIMATE CHANGE AND EXTREME WEATHER EVENTS, A3 Transmission and distribution equipment

Presentations

10:30am - 10:45am

Live Tank 420 kV high-voltage circuit-breaker CO2/O2 -50°C

David BERARD, Antonin BOBEAU, Joel OZIL, Solène LAURENT, Titouan PISSARDGIBOLLET

GE Vernova, France

10:45am - 11:00am

Emission-free 420 kV life-tank circuit-breaker

Mark Kuschel¹, Minh. Nguyen², Guilhem Blanchet³, Lukas Binner¹, Maurice Lesser¹, Radu-Marian Cernat¹

¹Siemens Energy, Germany; ²RTE, France; ³Statnett; Norway

11:00am - 11:15am

SF6-free high-voltage live-tank circuit-breaker for extremely cold regions

Ludovic DARLES, Cyril GREGOIRE, Clemence DUMOULIN, Cynthia Kessaci

GE Vernova, France

11:15am - 11:30am

Development of SF6-Free 420 kV Gas Insulated bus using CO2/O2 Natural-Origin Gas Mixture as an Alternative to SF6

Takuya Susuki, Toru Koike, Sebin Attokaren

Toshiba Energy systems & Solutions Corporation, Japan

11:30am - 11:45am

Suppression of gas pressure or tank diameter increase of GIS using natural-origin gas by combining FGM spacer and insulation coating technology

Kenji Okamoto¹, Hidetaka Masui¹, Naoki OSAWA², Katsumi KATO³

¹Fuji Electric Co., Ltd., Japan; ²Kanazawa Institute of Technology; ³N. I. T., Niihama College

11:45am - 12:00pm

Decarbonizing District Heating: Canada’s First Clean Air Installation and Advances in SF6-Free Switching Technology

Eduardo Gomez Hennig¹, Mark Kuschel², Peter Gronbach², Deryl A Varkey¹, Ben Ellison³

¹Siemens Energy, Canada; ²Siemens Energy, Germany; ³Creative Energy, Canada