Abstract
Power is the major energy and power of the modern industrial production, an important material basis for achieving production automation. Power not only transform form other forms of energy easily, but also easily be converted to other forms of energy to supply; The transmission and distribution of electricity is very simple and economic, also easy to control, adjust and measure, it is favorable to realize automatic production process.
This project used the basic principle of the power-supply design and its method to design the primary circuitry system in the 10kV substation of the factory of HuiLi, understood the development situation of substation technology and the technology development trend in our country on the basis of existing professional knowledge, according to the modern electrical system design requirements, design a 10kV integrated automation substation. Including analyze with firsthand information the computational load，compensation inactive power，calculate protect electric，fix electric power system picture，thunder protectingand，earthing fitted，and so on。
