As everyone knows, the power of modern industrial production are the major source of energy and power. Power not only easy to by other forms of energy conversion from, but also easy to convert to other forms of energy to supply with; the distribution of power transmission is simple and economic, and easy to control, regulation and measurement, there is conducive to the realization of the production process automation. Therefore, the electrical energy in modern industrial production and livelihood of the entire national economy wide range of applications. With the computer technology in power system application and development, regional power grids are in the construction and implementation of unmanned substations, substation equipment, computer and automation have become the mainstream of development and trends. The 66KV substation are in Liaoning Province for盘山县substation design, application required coefficient method to the entire substation load re statistical computing, and to consider the future development needs, and ultimately determine the capacity of main transformer at the same time select the corresponding electrical equipment. The use of per-unit value method of selected points in short-circuit short-circuit calculation and check electrical equipment safety, reliability, determine the current-limiting measures substation. Designed primarily to carry out the calculation of a load, transformer selection and reactive power compensation, short circuit and dynamic stability of calibration, and transformer protection methods were studied.
Substations are an important component of the electric power system, therefore, it is important to protect the mine site. If the substation lightning accident happened, would result in large areas of electricity, production and give society cause inconvenience to people's lives, which requires lightning protection measures have to be very reliable. This article of mine on the substation grounding design measures detailed, finalized the selection of the mine substation type. Zinc oxide surge arresters are the current international most advanced over-voltage protectors. Because of its core components using zinc oxide film resistors, as compared with traditional silicon carbide surge arresters, surge arresters improved Voltammetric characteristics, improve the over-voltage through-flow capacity, resulting in the characteristics of surge arresters with a fundamental change.
