Research On Seasonal Coefficient Of Grounding Resistance For Transmission Line Towers

This paper observed the different depth of soil resistivity and tower grounding resistance coefficient.It reflects the soil resistivity and grounding resistance and rainfall,temperature,soil temperature,soil moisture,soil depth.And to develop software to realize the automation of data collection and data processing.To laid a foundation for the design of transmission line tower grounding resistance and ops.Through the analysis of the data side,to analysis the relationship between meteorological elements and the tower grounding resistance,inpact power frequency grounding resistance,soil resistivity of seasonal change characteristics.To carry out the numerical calculation seasonal variation,it proposed transmission line grounding resistance coefficient of season change range and accessor methods.According to the engineering practice it made the tower grounding measurement..To a certain extent make up for the technology of blank research field on seasonal coefficient on transmission line tower,Applied to the measurement of the grounding resistance of tower engineering application of the seasonal coefficient.Improves the transmission line tower grounding grid's security level, to ensure the safe and stable operation of power grids, produce more significant economic benefit and social benefit.