Abstract
The topic that I design is that a topic designed this time is that " electric a part of He Dong transformer substation is designed ", its main task is a preliminary design of a part to the transformer substation of He Dong.Including to the electric sureness that mainly wire, the choice of the main electric equipment, including circuit breaker, isolate the switch, the mutual inductor of electric current, voltage mutual inductor, bus bar, stand with the voltage transformer and wait.
Whole thesis besides summary graduate to design the book outside, returned the expatiation every kind of most basic request that equipments choose with principle according to. The choice of the transformer includes: Main transformer use the main technique in number, capacity, model number...etc. in set data of the transformer to really settle; The electricity lord connected the line to introduce primarily the electricity lord connects the linear importance, design according to, the basic request, every kind of merit and shortcoming and lords that connect the line form connects the linear choosing more, the lord that combine to establish the in keeping with my plant the request connects the line; The short-circuit galvanometer is regarded as the most important link, this thesis introduced the calculating purpose in short-circuit electric current, assumption term, general provision, the calculation, network transformation of a parameter detailed, and each calculation etc. knowledge that short circuit order; The choice of the high pressure electricity equipments includes the mother line, high pressure breaks the road machine and insulate the switch, electric current to feels with each other the machine, electric voltage feels with each other the choice principle of the machine, high pressure switch cabinet with request, and proceed to these equipments the school check with the related introduction in product. But go together with the design principle of the electricity device, request to go together with the electricity device with 220/60 kV according to this thesis a high pressure for introducing, decide this time design to adopt the cent the mutually medium-sized arranging to the my plant. After electricity protection with the programming of the automatic device, include total, automatic device, general provision with the protection of generator, transformer, mother line etc. equipments, but power plant with change to give or get an electric shock a design for defending thunder protecting then primarily aiming at lightning rod with lightning arrester. In addition, return in the appropriate position in thesis additional diagram paper ( the lord connects the line diagram, plane chart defend thunder protection disgram, Cross section diagram etc.) and forms read, comprehend with the convenience with applied.
Key words：Transformer substation；Power system ；Mainly wire；power transmission systems
