CEA panel outlines phased shift away from SF₆ in substations
The Central Electricity Authority (CEA) has released a committee report recommending a phased transition away from sulphur hexafluoride (SF₆) gas in high-voltage substations, citing its high greenhouse impact and emerging global restrictions. The report, published by a six-member technical committee under the Ministry of Power, evaluates alternatives under “Green GIS” technologies that replace SF₆ with lower-emission insulating media. SF₆ has long been used in gas-insulated substations (GIS) due to its strong dielectric and arc-quenching properties….