The SDF disconnectors are available up to 550 kV, 4000 A and 63 kA. These type of disconnectors have a low friction design and offer minimized contact resistance. They are equipped with dead center interlocking for reliability in extreme conditions. Some other important features of these disconnectors are:
• No external spring in contact fingers
• Superior design of mechanical interlock
• Strong rotary pedestals
• Ice breaking capacity
Applications The horizontal center break disconnector is used at substations due to its simplicity and flexibility in arrangement. Why Hitachi ABB Power Grids? • Worldwide experience • Maximum reliability and minimal maintenance • Energy efficient solution • Easy and quick erection • Reliable and smooth operation • Suitable for wide range of environmental conditions
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