Design On Electrical Primary System To Hedong 66kV Power Transmission And Transformation Project

Being an important component part of the power grid,the power plant has important effect to the safe and reliable operation of the whole grid system,and shoulder the tasK of power plants and power users connect with each other,once the substation fault will inevitably affect the production and living.So its importance is no doubt.Combining features of grid of Xinganmeng,a Hedong 66 kV substation which lied in Wulanhaote area is designed in this thesis.The design plan is demonstrated from site-selection,overall structure,electrical primary system.electrical secondary system,communication system in the paper.In the paper,the transformer substation of overall substation structure was designed first,expounds the main electrical wiring design principles and basic requirements in overall design supporting part main,and analyze the hedong strictly according to power supply load conditions,a preliminary to describe an outline of the general structure of substation.Substation electrical design a system of the substation main wiring scheme,main transformer capacity and model,neutral grounding mode,through to the main wiring design,the selection of the main transformer and electrical calculation of a system operating data,and completed the electrical system design at a time.Then the reactive power compensation was studied for the substation,as well as intelligent substation design.Next,according to the electrical equipment in accordance with the normal worK of the current,voltage and use requirement,on the related electrical equipment selection,and has carried on the checK.Paper finally from the main transformer protection of system design,lightning protection design for the relay protection design.The whole system design strictly comply with from the raw data of the power system,the relevant requirements,design principles and level so as to maKe system design more economic,reasonable and reliable operation.