Romain Maladen

Method for validation of new eco-friendly insulating gases for medium voltage equipment

This paper deals with the evaluation steps of alternative gases to SF6 for medium voltage switchgear applications. It is focused on technical properties of the potential candidates. SF6 is widely used for several decades in medium voltage switchgear as insulating medium. Indeed, thanks to its excellent physical properties, low toxicity and high stability, SF6 brought numerous advantages like compactness, effectiveness, reliability,... However, despite these very interesting properties, this gas has a very high global warming potential (GWP = 22 800), and for this reason, alternative candidates should be found to replace it. This paper proposes a method to evaluate and validate potential candidates to replace it and gives an overview of the main properties of the most promising candidates.

Validation of a New Eco-friendly Insulating Gas for Medium and High Voltage Equipment

This paper deals with the validation steps of alternative gases to SF6 for high and medium voltage switchgear applications. It is focused on technical properties of the potential candidates. SF6 is widely used for several decades in high and medium voltage switchgear as insulating medium. Indeed, thanks to its excellent physical properties, low toxicity and high stability, SF6 brought numerous advantages like compactness, effectiveness, reliability, However, despite these very interesting properties, this gas has a very high global warming potential (GWP = 22,800), and for this reason, alternative candidates must be found to replace it. This paper proposes a procedure to evaluate and validate potential candidates to replace it and gives an overview of the main properties of the most interesting candidates.