Project Introduction:
The Biyue Mansion project, co-operated by Shengdao Electric and Country Garden, is located in the core area of Xinhaishu development in Ningbo. It is a high-end residential building in Xinhaishu. The project used VSD2-12 indoor high voltage vacuum circuit breaker produced by Shengdao.

       Country Garden Group is a well-known domestic comprehensive enterprise group with real estate as its main business, covering construction, decoration, property management, hotel development and management, education and other industries, and one of the top ten real estate enterprises in China. It has jurisdiction over professional companies such as national first-level qualification construction companies, national first-level qualification property management companies, and first-level qualification design institutes; it involves hotels, education, and other industries.

Product introduction:
VSD2-12 indoor high voltage vacuum circuit breaker
VSD2-12 indoor high-voltage vacuum circuit breaker is an indoor high-voltage switchgear with a rated voltage of 12kV, three-phase AC 50Hz, and is carefully designed and independently developed to adapt to the Chinese market on the basis of absorbing the advanced technology of the same type of products at home and abroad. The high-performance high-voltage vacuum circuit breaker complies with the latest relevant standards of GB, DL and IEC. It has a complete range of specifications and a solid-sealed pole that can operate stably in harsh environments. The vacuum interrupter has extraordinary breaking performance and can have a mechanical life. Up to 30,000 times, the configuration of the new panel is beautiful and exquisite.

       The VSD2-12 vacuum circuit breaker has passed strict type tests (assessment of insulation, temperature rise, dynamic thermal stability and short-circuit breaking and closing under various conditions), and has also withstood high and low temperature tests (-40°C). ～70℃) and 9-intensity seismic test.
Each VSD2-12 vacuum circuit breaker undergoes 300 opening and closing running-in tests before leaving the factory, which further improves the reliability of the whole machine. Special testing instruments are also used to test the mechanical characteristics to determine the opening and closing movement curve. Whether it is smooth and smooth, minimize the amplitude of opening overshoot and rebound and the time of closing bounce, to ensure the synchronization of three-phase opening and closing, and to ensure that the products shipped out of the factory are flawless.

高压断路器磨合测试系统操作界面

Operation interface of high-voltage circuit breaker mechanical characteristic test system

Technical Parameters:
1. Rated voltage: 12kV
2. Power frequency withstand voltage (1min): 42kV between phases and ground, 48kV fracture
3. Lightning impact (full wave): 75kV between phases and ground, 85kV fracture
4. Rated current: 630A, 1250A, 2000A, 2500A, 3150A, 4000A
5. Rated short-circuit breaking current: 20kA, 25kA, 31.5kA, 40kA

Applications:
VSD2-12 indoor high voltage vacuum circuit breaker is used to connect and disconnect the circuit under normal conditions, and to cut off short-circuit fault current. It also undertakes the dual tasks of control and protection. It is the core equipment of the power grid and can be equipped with KYN28A. -12 mid-mounted cabinets, can also be equipped with XGN66A-12 fixed cabinets, which are widely used in the protection and control of medium-voltage power distribution systems in the fields of energy, infrastructure, industry, commerce and civil buildings, as well as switching various loads of different natures. Frequent operation occasions, used in power plants, substations, commercial complexes, data centers, high-rise buildings, residential quarters, etc., for receiving and distributing electrical energy, and has the functions of controlling, protecting and monitoring circuits.

Product production site: