Abstract: substation operation accident seriously affect the safety of the power grid, stable and reliable operation, brought a great deal of inconvenience to the user. Reasons leading to the substation run accident, including equipment manufacturing and design problems, aging equipment and maintenance problems, the grid structure the impact stable operation, safety management issues in order to effectively prevent processing substation run accident, the relevant units should strengthen the management of infrastructure, improve the integrated automation device, to run equipment reliability coefficient strengthen equipment management, optimizing safety management.
Paper Keywords: substation run accident, analysis, processing
With the rapid development of the national economy, the increase in electricity demand growing, expanding grid scale, the stable operation of electricity is very important once run accident, the larger it will give the people of life and socio-economic loss. Therefore, the analysis becomes electric run accident, explore effective measures to ensure electrical safety and stable operation has great significance.
Substation operation Accident Analysis
Equipment manufacturing and design, equipment manufacturing and design problems is one of the main reasons that triggered substation run accident. Substandard product quality will seriously affect the safe operation of the electrical equipment, the network run power equipment manufacturing or design problem will be planted significant security risks. Typically, equipment manufacturing or design problems include manufacturing quality issues, design flaws, equipment selection problems. According to related studies have shown that, in operation less than three years of the new equipment and operational highest probability of failure of the old equipment in more than 20 years. As part of the new device is a newly developed product, design, manufacturing processes, and technology is still not very mature, very easy in the actual running problems. Moreover, the part of the manufacturer-sided pursuit economic interests in production over-compression costs, the product is difficult to fully meet the quality indicators, unable to meet the standard of substation operation of some new equipment, and technical innovation to replace the equipment in the run-time can not match the original facilities, leading to the substation run accident.
Aging equipment and maintenance problems devices running aging two substation put a longer running time, in the function of the grid medium-and long-term operation of equipment, spare parts gradually aging, such as knife rust is difficult to close the place, which to cause the accident. Secondly, the non-normal use lead to increased aging equipment such as temperature has a greater impact on the life of the transformer, insulation material temperature is too high during operation will shorten the service life of the transformer. because the current electricity load growth increasing part of the transformer will peak at full load or overload operation, the insulating material temperature rises too fast, exacerbated by aging in order to maintain the equipment to normal operation, maintenance and upkeep of equipment must be regularly maintenance in a timely manner to deal with a variety of equipment problems. However, due to the the substation operation of the equipment is relatively more, equipment maintenance, lack of staff in the peak period device can not exit overloaded running at full capacity, and other reasons, the normal equipment repair, maintenance difficult accordance with The implementation of the scheme, thus planting the safe operation of equipment hidden.
Grid structure affect the stable operation in recent years, the rapid growth in China's demand for electricity, the electricity load is getting heavier and heavier. The powered formula expanding power grids, but it is still difficult to fully meet the electricity needs of the user, the obvious contradiction between supply and demand, electricity an inadequate supply of every summer or winter peak period, most of the substation will be full load or overload operation, power cuts phenomenon have occurred because too much electricity load, the grid often in zero spare state, resulting in network security and stability margin is kept to a minimum, which can easily lead to a substation run accident, causing widespread power outages.
Security management issues in the management of some of the problems is the indirect cause of the substation run accident. Substation operation management arbitrary part of the leadership did not change the traditional management concepts, are accustomed to calling the shots, and can not be combined substation The actual running of its safety management, security management into action which in substation operation management, stop-gap measures, there is no reasonable management planning. Second, the various oversight mechanisms, rules and regulations may not be implemented. Relevant departments have been put forward in order to strengthen the management of electricity to run << substation management specification >> production safety work regulations >> << electricity safety regulations >> acts such standards. However, in the actual work, many of the units did not seriously implement these rules and regulations, the implementation of these rules and regulations to the specific work which, leading to management as long as the strict implementation of the relevant norms, will be able to effectively protect electrical safety. loophole. scientific management methods. partial electrical safety production management personnel will strictly manage sided understood as punishment, deterrence, lack of people-oriented management thinking, it is difficult to achieve management objectives. Fourth, the lack of effective incentives. The the substation operation management did not establish an effective incentive mechanism, it is difficult to inspire employees work actively initiative, it is difficult to adequately protect the security risks.
Substation run accident treatment countermeasures
1.Strengthen the management of infrastructure, we must strictly control the quality of the equipment in the a transformation substation or new substation. Avoid the accident due to equipment design or quality defects lead to substation operation in the choice of equipment, the manufacturer must be strictly screened, do not meet the requirements or product quality problems to be excluded, not allowed to participate in the equipment of the bidding. selected equipment manufacturers should take appropriate measures to ensure that manufacturers in strict accordance with the standards of production, control of product quality, good factory test work. put an end to the material, equipment manufacturing problems into the substation renovation or new projects, and preventive measures. substation safety management departments need to strictly control the design, planning, equipment selection, equipment selection plant, installation, commissioning and other related areas. implementation of the engineering quality of life tenure and quality acceptance of the accountability system, improve the awareness of the quality of all aspects of the equipment design, procurement, installation, and to ensure compliance with the relevant standards, network equipment and eliminate safety hazards.
Third, the conclusion
To sum up, leading to the substation operation accidents, such as equipment manufacturing and design problems, aging equipment and maintenance problems, the grid structure affecting stability, security management issues in order to ensure the stable operation of the power grid, should take appropriate measures to solve specific work practices should strengthen the management of infrastructure, and improve the integrated automation device, to run equipment reliability coefficient strengthen equipment management, optimize security management, multi-processing substation run accident.Links to free papers Download Center http://eng.hi138.com