The horizontal knee disconnector requires the smallest spaces in both horizontal and vertical directions, suitable for substation with small installation area. The DDK800 disconnector is available for rated parameters 800kV, 3150A and 50kA

• Self-aligned contact system
• Special spring-less contact design to prevent opening of contact during short circuit
• Minimized contact resistance
• Stable open/close movement of disconnectors;
• Driving and driven pipe well supported by compression and extension spring
• Large contacting area between moving contacts and fixed contacts
• Guiding device