Product Description
The load switch is a kind of switchgear with a simple arc extinguishing device. It uses SF6 gas as the insulation and arc extinguishing medium. It can be used as the closing and breaking load current and overload current. It can also be used as the closing and breaking no-load. Lines, no-load transformers and capacitor banks, etc., all three-position load switches with on, off and grounding functions are simple in structure and affordable. In addition to long life, strong breaking force and other advantages of vacuum load switch, its outstanding advantages are easy to achieve three working positions (on, off and ground), small current (inductance, capacitance) breaking, anti- Strong environmental conditions. It is suitable for promotion and application in urban and rural medium voltage distribution networks. SF6 load switch + fuse combination is the SF6 load switch to bear the overload current (this overload current is still within the range of the load switch rated breaking current for the SF6 load switch) and the normal operating current of the closing and breaking, It is also required to bear the breaking of the "transfer current". The short-circuit protection and overload protection on the high-voltage side of the transformer are borne by the high-voltage current-limiting fuse. At this time, a group of SF6 load switches and three fuses with triggers, as long as any one of the triggers is actuated, the linkage mechanism will automatically open the three phases of the load switch at the same time. The combination of the two can meet the requirements of the operation and protection of various normal and faulty distribution systems.
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