This paper introduces the design of main electricity system about the 10KV substation,and return fish-eye an electricity lord to connect the line diagram to take into the elucidation at the same time. We utilize the means of economy and technology comparing to select main electricity connect of the 10KV substation, and compute short current by the means of practical short current’s compute in the design . We design and select main equipment and conductor、plant network、plan of site and high voltage distribution equipment through checking designing handbook and technical code .
That transformer substation has two main transformer of sets,choose single bus-bar structure.And return fish-eye an electricity lord、short current、choice and check of main equipment(include circuit breaker、load break switch、disconnect switch、current transformer、potential transformer ),introduce the shielding wires and poles、relay protection and so on .
Key word:10KV substation ;short current ;power distribution