Gas Insulated Switchgear Market Size, Share, Trends and Forecast 2030, by Types (High Voltage GIS (72.5 kV - 550 kV), Medium Voltage GIS (1 kV - 72.5 kV), Low Voltage GIS (less than 1 kV)) by Applications (Power Transmission, Integration of Renewable Energy Sources, Industrial Applications (including oil and gas, mining, and manufacturing, Infrastructure )