.220 Kv Dading Square Substation Grounding Grids To Transform The New Technology Research

The grounding resistance, contact voltage, grounding as a step voltage network parameters that affect the safety net substation grounding an important factor to the grounding resistance, contact voltage, the step voltage of the factors that affect the calculation and analysis, focusing on the use of a vertical ground For network Ground substation down the resistance in-depth analysis of the way, come to the best of additional vertical drop very grounding resistance program. The network is now grounded in the evenly distribution network and reduce the potential exposure of the step voltage and voltage requirements for the network to levels ranging from space layout methods were studied and analyzed in the same network to meet the safety standards should be used Ranging from space arrangement can reduce the level of the number of conductors, the distance calculation of the distribution of attention to the need to choose the best compression ratio to achieve the comprehensive economic indicators under the best network and data security. According the actual situation of DaDingFang transformer substation grounding system, through theoretical research and analysis of the calculation to choose the level of network ranging from a reasonable distance of the layout of the program, technology and economic optimization solutions, According the actual situation of DaDingFang transformer substation grounding system , used a vertical ground network to lower ground resistance of the ground applied research, theoretical research and analysis of the calculation to determine the vertical ground very select the root of the number, length, the equivalent radius, layout and installation of the legitimate program to reduce ground network in the grounding resistance On the basis of technology and economic optimization solutions.