Design Of The 66kV Nanshi Intelligent Substation

Intelligent substation is an important foundation and support of strong smart grid,it is in the position of the center of the smart grid,access to new energy power input and on receiving a high voltage power grid,the power distribution substation is connected to complete and large users,and at the same time have to accept the superior dispatching center of information transmission,automatic control and the intelligent control and online analysis function.Therefore,intelligent substation will be the direction of substation development in the future.In order to meet the needs of load development in Nanshi area of Shuangyashan,scientific design was made on the electrical part of 66 k V smart substation in Nanning City,Shuangyashan.The first completed the demand analysis and overall planning,the overall design scheme and system are in accord with the basic norms,meet the general design of a new generation of intelligent station requirements,combined with the operating conditions of the region,through the selection of new intelligent substation equipment to improve overall level of intelligence.Then design a system of 66 k V Smart Substation,and the southern Shuangya equipment selection.According to the status of equipment development,66 k V circuit breakers using SF6 column integrated intelligent circuit breaker,integrated circuit breaker,electronic current transformer,outlet side of the isolation switch and the grounding switch;intelligent component 10 k V other interval does not separate,the integration of protection,control,measurement and other functions of the multi assessment one apparatus.The final design of 66 k V intelligent substation,Shuangya two system and intelligent two equipment selection,the station public utilities,66 k V and main variable interval spacer device arranged on the II type prefabricated cabin,cabin equipment used before connection display device,realizes the design idea of prefabricated cabin layout.