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S2DA
Double Side break disconnector up to 550 kV
The S2DA is reliable in high winds and heavy ice and always stable in the closed position during short circuits. A galvanised structural steel channel base supports the insulators and live parts, assuring a high strength, rigid design. The two insulator stacks rotate on weather-sealed, greaseless, maintenance-free rotor bearings and the blades are made of extra-heavy extruded aluminium with replaceable silver-plated copper contacts in the opening point.
Customer Benefits
- High short circuit carrying capacity
- No sliding contacts
- Low operating torque
- Built-in or retro-fitted earthing switches
- Arc restrictors for line charging and transformer magnetising currents
- Virtually maintenance free
- Easy start-up and commissioning