Optimal Design And Application Of Grounding Electrode Of Transmission Line Tower

With the rapid development of power system,grounding protection of high voltage transmission line becomes the key of safe and reliable power supply of power system.However,the grounding device of power transmission tower is faced with problems such as limited by terrain,long distance,susceptible to lightning and corrosion of grounding device,which to some extent leads to the design of grounding resistance of power transmission tower does not meet the standard,which brings great hidden trouble to the personal safety of the people and the reliability of transmission.Therefore,the design and optimization of transmission line tower grounding device has become an important measure to ensure the safety of staff and the stable operation of power system.This article summarized the experts and scholars on the research of the transmission line grounding device,in the second chapter focuses on tower grounding pole optimization and improvement measures of three kinds of optimization scheme is put forward,the tower grounding model was established,and through simulated computation simulation MALZ CDEGS software module,the structure change of grounding electrodes is discussed in this thesis,a variety of ways to effectively reduce the grounding resistance is proposed.The grounding method proposed in this thesis,the second chapter and the combination of specific environment,plain、cities and mountains are analyzed under the condition of the difficulties of grounding device construction and maintenance.For plain areas,the design ideas of applying ordinary round steel as grounding device materials and laying in conventional forms are proposed.For mountainous areas,the design ideas of using graphite as grounding device materials,replacing soil,and adding vertical grounding bodies are proposed.For urban areas,Proposed the design idea of using alloy materials as grounding device materials and laying vertical grounding grids.Through simulation analysis and testing and actual operation data feedback on site,the results show that the design method has been well verified,conforms to the design specification and actual operation conditions,and is suitable for promotion.This paper has 31 figures,10 tables and 54 references.