| With the rapid development of the national economy and the continuous improvement of production and living standards,the social requirements for power supply reliability and power quality also continue to improve.High voltage live working technology is to carry out uninterrupted operation on high-voltage lines and equipment.It can not only realize the maintenance and defect elimination of equipment,but also keep the equipment in continuous operation,and enable users to get uninterrupted power,which has great social and economic benefits.The State Grid Corporation vigorously promotes the application of live working technology to further improve the reliability of power supply,reduce the outage rate of equipment,ensure the safe and reliable operation of the power system,and help the construction of a strong smart grid.After more than 60 years of development,the live working technology has made important progress and breakthrough,but the State Grid Heze Power supply company started the live working later,the working force and equipment configuration are insufficient,the rate of live working is not high,and the support for power supply reliability improvement is not enough.In this context,the basic principle of live working technology is analyzed,and the optimization method and new technology promotion and application scheme of State Grid Heze Power Supply Company is explorered,so as to give full play to the advantages of live working technology and continuously improve the reliability level.The details are as follows:Firstly,the development history of live working at home and abroad is analyzed carefully,the basic principle of live working is introduced,and the safety of live working method is verified;secondly,the existing problems of live working in Heze Power Supply Company of State Grid are analyzed,and the efficient implementation scheme of live working technology is studied,and how to reasonably supplement the mechanism optimization,personnel and vehicle allocation ratio and improve the labor efficiency of operators based on AHP method.The ability of live working is improved by strengthening operators and live working equipment;Finally,in view of the current large-scale and long-term outage maintenance work,the organic cooperation of medium-voltage-generator car,mobile-box-transformer car and by-pass operation vehicle,establishes a "micro-grid" system,reduces the scope of power failure,ensures reliable power supply to the maximum extent,and promotes the transformation and upgrading of distribution network maintenance mode from power outage maintenance to non-power outage maintenance.Combined with specific application scenarios,the "micro-grid" generation is verified The feasibility and effectiveness of power supply reliability improvement and maintenance without power outage are also discussed.In addition,with the increasing number of live working projects and the increasing difficulty of operation,the traditional soft insulation shielding equipment is used in a large number and the operation intensity is large.For live working projects,the advantages and disadvantages of soft and hard insulation shielding equipment are studied to make the live work project more convenient and efficient. |
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