Jan 2018
Electricity Transmission
Long Term Stability Testing of Alternative Gases
Jan 2018
Jan 2020
National Grid Electricity Transmission
Amrit Sehmbi
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Network Innovation Allowance
ET - Transition to low carbon future
The ultimate aim of this work is to gain a better understanding of the recently proposed alternative gases and gas mixtures to replace SF6 gas. This will reduce the environmental impact of the transmission network.

The particular objectives of this work are to:

Determine the impact of electrical discharges and flashover on the dielectric properties of the gas mixtures
Determine the by-products of the gas mixtures following flashover
Determine the impact of the gas mixtures and their by-products on surrounding materials.
Determine an indicator of gas mixture degradation and estimate long term stability.