As of 2016, the Polaris Power Transmission and Distribution Network has compiled the top 10 power technologies that have a profound impact on the power grid in 2016. Let us review together 2016 and see what achievements and surprises have been achieved in the power equipment technology this year. 1. China West Power filled the world's UHV AC power transmission equipment blank event: On August 7, Xi'an Electricity Transformer Co., Ltd. ("西西 西 å˜") of China West Electricity Group Co., Ltd. (西西 西 å˜ é›» 压 æœ‰é™ ä»»ä»» å…¬å¸) was a manufacturer of seven 1000 kV and 1000 M UHV AC transmission and transformation power plants in the west of Mengxi-Tianjin Volt power transformers all passed the test, once again to fill the world's UHV AC power transmission equipment manufacturing gaps. Comments: Mengxi - Tianjin South 1000 kV UHV AC Transmission and Transformation Project is an important part of North China UHV AC and DC main grid of State Grid Corporation of China. It is the second demonstration project of 1000 kV FuJian Southeast (Changzhi) -Nanyang-Jingmen UHV AC Test After the project and its expansion project and a new UHV AC transmission project, compared with the pre-construction of the UHV exchange project, Mengxi 1000 kV substation is in a large sand area, blowing sand phenomenon is more, and the emergence of sandstorms Probably, at the same time, the minimum ambient temperature in the field reaches minus 30.9 degrees Celsius and the operating conditions are harsh, which is a great test for the safe and reliable operation of the UHV autotransformer. The study on preventing sand and starting at low temperature is the key to this design. Western transformation of the West to change the design staff to follow the mature structure of the pre-high voltage products to further promote localization at the same time, scientific research, independent innovation. The structure and technology of transformer materials in the alpine region and the Dashansha area have been completed. The main components of transformers in cold and windy areas have been selected and their protective measures have been studied. The scheme of low temperature start-up of transformers in the alpine region has been studied. This series of technical achievements have promoted the development of China's UHV transformers Design, technology and manufacturing level. 2. Xu Ji Group to develop power electronic transformers and power flow controller to fill the gaps event: In December, Xuji Group combined with the project of "Research on key technologies of AC / DC hybrid microgrid with high-density distributed energy access" of National 863 Project. The developed power electronic transformers and power flow controllers successfully passed the mid-term inspection and supervision organized by the Ministry of Science and Technology Smooth delivery Shaoxing Shangyu AC-DC hybrid micro-grid demonstration project site. Project-related equipment to fill the gaps in the country, the main technical performance has reached the international advanced level. Comments: Power electronic transformers and power flow controller is the forefront and key support equipment for the future development of AC / DC hybrid distribution network. It belongs to the high-end equipment in the field of power network equipment and has good development prospects. Due to the technical difficulty of the product, the complicated control and the design and manufacture, we have no relevant products at home and abroad. Xuji Group developed a number of power electronic transformers with voltage source, current source, reactive power compensation and many other features, and first of all to achieve the low voltage side of the DC voltage and module redundancy protection, related equipment technology has reached advanced domestic and international standards. 3. South Network Ultra-high pressure company a key technology to fill the international gap event: In May, the EHV Retrofitting Center organized the Technical Achievement Appraisal Meeting of "Research and Engineering Application of UHV Varistor Site Maintenance" in Guangzhou. The panel of experts from State Grid Corporation of China, transformer manufacturers and North China Electric Power University unanimously agreed that the research results of the project have filled the international gap and generally reached the international advanced level. Comments: "Research and application of key technologies of UHV converter on-site overhaul" is to carry out on-site overhaul technology research for fault converter in Yun-Gui Mountain area during the operation of UHVDC repair center, and to solve the problems of design, construction and maintenance of on-site maintenance hall Appliance configuration, overhaul process control, on-site test and drying, etc. The project designed and built the first maintenance hall in the world that meets the field maintenance and test verification requirements of ± 800 kV UHVDC and systematically studied the key technologies of field maintenance for ± 800 kV UHVDC and formulated the on- Key technology, control standards and scientific experimental verification program, developed a mobile gas-phase drying and other on-site maintenance of special equipment and field test key equipment. The research results have been successfully applied to the field maintenance of 500 kV converter at Tian-Guang DC Project and 800-kV converter at DC Project of Nuozhadu. After the overhaul, the commutation transformer passed the rigorous field test and assessment, Load a long time running test, running in good condition. 4. Ping Gao intelligent isolation circuit breaker research results to fill the gaps event: In April, the project of "State-of-the-art Scientific Research on Intelligent Breaking Technology Research and Product Development" jointly undertaken by China Electric Power Research Institute, State Grid Smart Grid Research Institute and other units, successfully passed the acceptance by the expert group. Comments: GLW2--252 / T4000-50 integrated intelligent isolation circuit breaker integrated grounding switch, pure optical fiber current transformer, intelligent modules and real-time online monitoring device, greatly simplifying the system design and wiring, optimization of maintenance strategy, reducing the share of Land area and power equipment usage, simplifying plant design, reducing equipment failure rate. With advanced, reliable, integrated, low-carbon, environmental protection and other advantages, with intelligent substation measurement and digitization required, control network, status visualization, functional integration and information interaction characteristics. The research results of this project have broken the technical monopoly of foreign enterprises and filled the technical gap in the domestic switch field, providing strong support for the power grid construction. The Ping Gao 1100 kV cut filter bank circuit breaker to fill the international gap event: On December 2, LW10B-1100 / Y4000-63 type cut filter circuit breaker independently developed by Pinggao Group successfully passed the test of 63000A T100s and electric life test in Xi'an High-voltage Apparatus Research Institute, and the effective life of electrical life is as high as 22 Times. Comments: LW10B-1100 / Y4000-63 type cut filter group circuit breaker is open outdoor three-phase AC 50Hz UHV transmission equipment for UHVDC engineering AC filter field switching filter bank. The product of high technical parameters, including capacitive load switching with a very low probability of heavy penetration, capacitive current breaking test to achieve FC2 level, breaking recovery voltage up to 2900 kV, capacitive current opening and closing test capability is higher than C2 level; excellent short-circuit breaking performance, rated short-circuit breaking current of 63 kA; high seismic rating, through the four kinds of attitude under the 8.5 true earthquake test; long mechanical life, 10000 times reliable operation; , Through 22 times the electrical life, higher than E2 level; using column breaker structure, can effectively reduce the project cost. This is the first one at home and abroad to pass the test million volt filter bank circuit breaker products. Previously, no one company at home and abroad to complete the product design, manufacture and test validation. 5. Nanjing wire first "on the ground ice melting automatic wiring device" event: On October 30, China Electricity Council unveiled the product appraisal of the "Top-up Ground Ice Melting Automatic Wiring Device" independently designed and developed by China Nian Jian Zhong Neng Equipment Nanjing Wire Co., Ltd. ("Nanjing Wire"). All the participating experts unanimously decided , The company independently designed and developed "on the ground ice melting automatic wiring device" is a domestic initiative, the comprehensive technical performance has reached the international advanced level. Comments: Prior to "ground ice melting automatic wiring device" has been in the 500 kV Shi Xian line, Castle Peak A and other projects successfully run, but the original device is mainly suitable for AC lines, using a side-by-side structure; DC line tower Not the same, when the cross arm length is less than the length of the jumper, the original "ground ice melting automatic wiring device" is no longer applicable. And from side to side structure adjusted to the on-type structure, completely solve the side-connected wiring device limited by the arm length restrictions on the tower structure of excellent adaptability, "on the ground ice melting automatic wiring device" has also been successfully achieved Achieved from the exchange of engineering to DC engineering expansion. Polaris, the leading vertical portal in the energy industry, changes its new logo 6. Hunan Power Current Transformer Innovative Project to fill the gaps in the domestic high-voltage AC-DC technology event: State Grid Hunan Power Maintenance Company's "High Voltage AC-DC Current Transformer Card Detection and Fault Diagnosis Strategy Research" project will fill the domestic HVDC photoelectric current transformer failure of the technical gaps to improve power supply reliability. Stove Tip Bracket,Stove Pipe Bracket,Fireplace Ash Vacuum Cleaner,Stove Accessories Bracket Jinan Huancheng Heating Equipment Manufacturing Co., Ltd. , https://www.globalstove.com