Sui Zhong 2×1000MW Generating Set Connect To North China Power Grid Electrical Scheme Study

With the rapid development of national economy,the electric power industry in our country has higher Mengjin,became the world's largest electricity producer.However,with the rapid expansion of the major power group,China's power installed capacity has become saturated,the power allocation is not reasonable,serious environmental pollution and other issues inevitably burst out.In order to alleviate the Northeast power grid electricity situation,the implementation of the Beijing Tianjin Hebei region air pollution prevention action plan,the national energy bureau put forward the "notice on the national energy board to accelerate the construction of 12 key transmission channel of air pollution control action plan"(national power [2014]212),Suizhong power plant grafting project was listed as one of the 12 key transmission channel.This article from the reality of the completion of the subject of the main electrical wiring,electrical equipment,electrical equipment,two times the design of equipment selection and other programs to determine the main wiring mode of the project.Secondly,the project of 500 kV bus,outlet,switch and other electrical equipment and relay protection device,safety and automation equipment,such as the two electrical equipment renovation program.In this paper,the protection configuration,working principle and debugging method of the main equipment of this project are summarized,and the test data are summarized.All the functions of logic of the protection device could be tested to ensure comprehensive and complete protection logic,signal and export circuit reliability,and also conducted a comprehensive inspection of the two loop related electrical,ensure the protection of the normal function of implementation.Finally,the general evaluation of the power grid project of Suizhong power plant was carried out.To evaluate the project from the project schedule,HSE index,quality index and economic benefit etc..The project is the key project of the country to revitalize the northeast old industrial base,and it is also an important power transmission project of the northeast and North China power grid.The project put into operation,will greatlyincrease the power to send northeast North China,reduce the air pollution in Beijing Tianjin Hebei region,promote the northeast wind power consumption.The purpose of this subject is to design and track the whole project of Suizhong power grid project,and to track the whole project progress.As an important case of power system reconstruction project,this project can be used for reference for other power plant and power company.