Brand | Switchgear parts |
Model NO. | Inflatable cabinet casing |
Rated voltage | 12kV |
Rated normal current | 1250A |
Series | 202 |
Electrical isolation: Block the current path between the high-voltage conductor (rated voltage 12 - 40kV) and the grounded enclosure through composite insulating materials such as silicone rubber or epoxy resin. The power frequency withstand voltage is usually ≥ 35kV (for 12kV systems).
· Gas sealing: Use multiple O-ring seals and a metal flange structure to maintain the airtightness of the SF₆ gas chamber (leakage rate ≤ 0.5% per year).
· Electromagnetic shielding: Install a conductive layer inside to suppress partial discharge, ensuring that the partial discharge quantity ≤ 5pC.