Single-pole disconnector ZJW1-816/J25

DCgrounding

ZJW1-816 type/J25 grounding switch is installed at ± 800 kV converter station on the polar side of DC field and high voltage side of DC filter, used to be reliable grounding for the maintenance of high voltage busbar, converter valve, flat wave reactor and other electrical equipments, in order to provide a qualified, safe working conditions to the maintenance equipment and maintenance staff . Service environment 1. The surrounding air temperature: -40℃～+40℃ 2. Altitude: ≤1000m 3. Wind speed: ≤34m/s 4. Icing-thickness: ≤10mm 5. Anti-seismic ability: AG3 6. The installation site should be free of severe vibration and flammable, explosive materials and chemical corrosion.