ABSTRACT

With the development of science and technology in China, particularly computing

technology has advanced, the power system demands on substation more and more.

The design is refer to the part of 220kV electrical substation design. First of all, analyze

the original data and choose the main transformer, based on it , design the main wiring and
Short Circuit Calculation, at last choose equipment, then mine and the protection of earth

and distribution device.

Key words: Substation；Short Circuit Calculation；Equipment Selection ；Mine