The Design Of Fu Zhuang 220kV Delivery Smart Substation

At present,along with the digital technology,communication technology and the development of professional technology such as network technology,smart substation technology is increasingly mature,but the first generation of smart substation exist covers an area of big,long construction period,there are several problems such as wasting resources,aiming at these problems,prefabricated cabin substation arises at the historic moment.Firstly,this paper analyzes the current situation and development trend of the load in the area,and demonstrates the necessity of the design of the station.From technical and economic point of view,on the strength of their minimum cost method to determine the access scheme.Through the calculation of load and power supply area identified units and model of the main transformer and further design the station transformer capacity and models.The selection of main equipment and the operation mode of the station are determined by the short circuit calculation.From the total investment,operation and maintenance,accident power outage and maintenance time and other aspects of the station distribution device and the general layout of the program,to determine the general layout of the site plan.Secondly,the structure of a substation system analysis foundation,combined with the distribution type intelligent substation design principles and norms,design that make a station relay protection device,intelligent monitoring system,communication system,such as the dispatching automation system of.Finally,using the technology of the prefabricated cabin,the plan of the pre-hatch is designed,the equipment configuration of the cabin and the air plug and cable configuration are also designed.Many practical problems of the project are solved in this paper.It has the ortant guidance and practical significance for the construction of power smission project.