VSI High Voltage Vacuum Circuit Breaker

Product Overview 

Vs1-12 high voltage vacuum circuit breaker is an indoor switching equipment of three-phase ac 50Hz fixed voltage 12KV power system, which is used as the protection and control unit of power grid equipment and power equipment in industrial and mining enterprises. It is suitable for frequent operation at rated operating current or multiple short-circuit current switching. The circuit breaker adopts the design of integrated operating mechanism and circuit breaker body, which can be used as fixed installation unit or equipped with special propulsion mechanism to form the handcart unit. Among them, fixed circuit breakers can be added with corresponding interlocks to meet the needs of fixed cabinets such as XGN2 and GG1A. 

Service conditions
1. The upper limit of ambient air temperature shall not exceed 40℃.Lower limit not exceeding-15℃;
2. The demeanor is no more than 35m/s;
3. Altitude is no higher than 1000m
4. Earthquake intensity shall not exceed 8 degrees;
5. Environmental humidity: the monthly average relative temperature is no more than 90%, and the daily average relative humidity is no more than 95%;
6. The installation site shall be free from inflammable, explosive, chemical corrosive substances and frequent violent vibration.
Main feature
1. Vs1-12 high voltage vacuum circuit breaker, the theme part is set in the insulation tube made of epoxy resin by APG process, this structure can effectively prevent external force impact, due to environmental pollution and other external factors on vacuum arc extinquishing chamber.
2, the circuit breaker is equipped with a sealed row ceramic arc extinquishing chamber, copper and chromium contact material, R contact structure, which is characterized by strong breaking ability, low closure level, long battery life.
3.The vacuum arc extinquishing chamber is placed in the insulation tube, which makes the circuit breaker maintenance free, no pollution, no explosion risk, low noise and high insulation level.
4. The operating mechanism is the spring energy storage operating mechanism. The closing unit is installed in the mechanism box.The mechanism and body are arranged before and after into one, high transmission efficiency, good operation performance, suitable for frequent operation, can be installed in the movable fixed switch cabinet.
5.The operating mechanism is spring energy storage operating mechanism, and one operating mechanism operates three-phase vacuum arc extinquishing chamber.Operating mechanism mainly includes two energy storage with tensile spring, closing energy storage device, drive to turn even of each phase arcing chamber plate, arm and break-brake tripping device, in addition, in front of a bar frame is equipped with such as energy storage, tripping device, auxiliary switch, motor and control equipment, switch button, hand machine shaft, energy storage status indicator, break-brake signs etc.The operating mechanism is suitable for automatic reclosing operation, and the motor can also perform reclosing operation for many times due to its short energy storage time.There are two kinds of energy storage modes: manual energy storage and electric energy storage.

6. The vacuum circuit breaker has stable operation performance, large breaking current, reasonable design and convenient secondary connection.

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