Design Of 66kV Substation For Tieli Industrial Park

In order to adapt to the Yichun city industrial projects,outside capital attraction is not strong,the industrial economic development potential problems,from 2010 the municipal government began planning the construction of railway industry demonstration base.Tieli Industrial Park of 66 kV project implementation can meet the need of load growth,improve the power grid structure,effectively reduce the Industrial Park supply radius,greatly reduce the loss,optimize network structure.To meet the coordination of urban master planning and power demand,through scientific planning,to ensure the coordinated development of power grid and city,and to solve the strategic resource problems of long-term sustainable development of power grid,such as the corner of substation construction.To meet the overall planning and development of the city and promote the rapid development of local economic construction.The main contents of this paper are as follows:1.Primary design of power system.In this period,66 kV high-voltage side considers one outgoing line and 4 outgoing lines in the long-term planning;10 kV low-voltage side considers six outgoing lines and 24 outgoing lines in the long-term planning.2.Secondary design of power system.According to the design of intelligent substation.3.Substation engineering design.In this period,one main transformer is installed with a capacity of 31.5 MVA,and two 50 MVA main transformers are planned for the future.In this period,a group of reactive power compensation devices installed outdoors has a capacity of 4.8 Mvar and a capacity of 2 x 4.8 Mvar for the long-term planning.4.Design of transmission line engineering.A new 66 kV overhead line will be constructed according to the double circuit tower,with a single circuit.The length of the line is 5.1 kilometers and the cross section of the conductor is 240 square millimeters.