More than 95% of power outages suffered by power users are caused by the distribution system. Therefore, upgrading the distribution network operation level and building an intelligent distribution network have become one of the important tasks in the future power system. The State Grid requires that by the end of the twelfth five-year period, the reliability of urban distribution network power supply should reach 99.93%, the comprehensive voltage pass rate should reach 99.30%, the line loss rate should drop to 6%, and the rural network comprehensive line loss rate should be less than 6.2%. The reliability of power supply is higher than 99.72%, and the pass rate of integrated power supply voltage is higher than 97.80%. The plan also requires that by the end of the twelfth five-year period, the average failure time of users in key areas of the key cities should be within 5 minutes, and the urban area should be reduced to 50 minutes. Within the goal. It can be seen that the State Grid Corporation attaches importance to the issue of power supply reliability. Therefore, it is the only effective way to complete the above requirements, increase the automation level of distribution networks, and increase the intensity of smart distribution network construction. The development and realization of distribution network technology is the beginning of investment. From the status quo and development trend of distribution network technology, find the direction of investment. The goals of the smart distribution network include three aspects: reducing losses, ensuring power quality and reliability of power supply. The power quality and the loss are mutual, and the loss is accompanied by the decrease of the voltage quality. Therefore, the goal of the smart distribution network is actually to improve the power quality and improve the reliability of the power supply. Energy conservation and intelligence are a persistent topic in the power grid. Compared with energy conservation, power grid companies pay more attention to power supply reliability issues, and energy-saving issues are more of a user's consideration. Therefore, we consider smart-direction considerations as the top priority for investment. Of course, many energy-saving prerequisites are the improvement of power quality. We still need to pay attention. Intelligent terminals (FTU/TTU/DTU) are expected to reach RMB 1.6 billion in 2013, RMB 2.2 billion in 2014, and RMB 3 billion in 2015; distribution network management system is expected to reach RMB 1.2 billion in 2013, and RMB 1.5 billion in 2014. It will reach RMB 2 billion; other RMUs, outdoor column vacuum switches, and smart transformers are expected to total 27.2 billion yuan in 2013, 30.3 billion yuan in 2014, and 33 billion yuan in 2015. In total, the distribution automation market is expected to reach 30 billion yuan in 2013, 34 billion yuan in 2014, and 38 billion yuan in 2015. On-line monitoring of power systems includes on-line transmission line monitoring systems, on-line monitoring systems for substation equipment, on-line monitoring systems for power distribution equipment, on-line monitoring of lightning protection, and on-line monitoring systems for power generation. Here, we only forecast the market capacity of on-line monitoring of distribution networks. It should be noted that the on-line monitoring of power distribution networks overlaps with on-line monitoring of substations and on-line monitoring of lightning protection. For example, a 110kV substation in a very large city also belongs to the category of on-line monitoring of distribution networks; distribution equipment also has requirements for on-line monitoring of lightning protection, etc. . On-line monitoring of distribution equipment includes distribution cable (feeder) on-line monitoring system, distribution switch on-line monitoring system, distribution switchgear on-line monitoring system, distribution transformer on-line monitoring system and distribution network power quality on-line monitoring system. Among them, the typical ones are: video and equipment operating temperature monitoring of the power distribution room, opening and closing station, water level and humidity monitoring and control of the special section ring network cabinet, power quality monitoring of the distribution network, transmission lines of the ultra-large city 110kV power grid, Online monitoring of transformers, switches, and other systems; our market capacity for on-line monitoring of distribution networks is about 1 billion, and will increase at an annual rate of about 10%. Kitchen & Bathroom Accessories Kitchen & Bathroom Accessories,Stainless Floor Drain,Bathroom Bidet Sprayer,Bathroom Jet Sprayer Kit kaiping aida sanitary ware technology co.,ltd , https://www.aidafaucets.com
Analysis of the current status of smart distribution network investment in China