2 tons of Mini Excavator, the overall use of engineering additive track, wear-resistant and stable; 2 Ton Mini Excavators,2 Ton Mini Excavator Machine,Mini Excavator 2 Ton,2 Ton Small Excavator Shandong Davoo Machinery Co., Ltd. Trading Company , https://www.sddigger.com
Ximeng-Taizhou project is the world's first UHV DC project to access 500 kV and 1000 kV AC grids with a transmission capacity of up to 10 million kilowatts. It is necessary to make extensive use of UHV AC circuit breakers for switching filter banks Capacitive current breaking demanding, the recovery voltage up to 2900 kilovolts, in particular, to withstand nearly 1,000 times a year frequent switching operation of the test, demanding on the electric life, there is no precedent at home and abroad.
The company attaches great importance to this, the organization of China Electric Power Research Institute, Xi'an High Voltage Switchgear Co., Ltd., Henan High Electric Co., Ltd., Xi'an Institute of High Voltage Electric Apparatus Co., Ltd. and other domestic scientific research, design, manufacture and test units joint research , The technical scheme of open type 4 fracture series connection was confirmed, and the key technical problems such as the development of high electrical life arc extinguishing chamber, the guarantee of mechanical operation stability, the development of new type of insulation material and the development of new test and detection technology were solved. In July of last year, XKF Limited took the lead in completing the first prototype manufacturing and passed the rigorous testing and verification. The operating life of the machine is over 10,000 times, and the reliable switching can be done without inspection and maintenance 3000 to 5000 times to meet the requirements of safe and reliable operation. Prototype extensive use of new structures, new materials, new processes and new methods, with completely independent intellectual property rights.
The successful development of 1100 kV AC filter circuit breakers made the direct interconnection of UHV DC project and UHV AC power grid possible. The equipment has excellent performance index, high safety and reliability, convenient operation and low manufacturing cost, and can further improve the economy of the UHV transmission on the basis of ensuring safety and has broad application prospect.
This kind of small excavator has beautiful appearance, full power, imported hydraulic engine, stable performance;
The front end can be equipped with a side swing function, flexible operation in a small space, large counterweight, and the excavator does not tilt its head when the excavator, and the digging force is increased.
Tailless model, beautiful appearance,
1100 kV AC filter group circuit breaker successfully developed
Recently, the Ximeng - Taizhou ± 800 kV UHV DC Project Taizhou Converter Station exchange field built and put into operation. 1100 kV AC filter circuit breaker with a successful charged, excellent performance, reliable operation, to achieve major technological breakthroughs is China's high-voltage switch field has made another important innovation.