发电厂和变电所接地的重要性与基本要求分析

Analysis on Importance and Basic Requirements of Proper Grounding in Power Plants and Substations

发电厂和变电所是生产和输送电能的重要环节,在我国的工农业生产和日常生活用电等方面占有极其重要的地位。全面分析了发电厂、变电所的接地要求及方法,包括接地的意义和目的、接地存在的主要问题及相应的解决方法、对于接地电阻的要求和接地装置的热稳定、防腐要求、接地网的形式、设备接地的具体要求等。发电厂和变电所接地的好坏直接关系到设备和人身的安全,应当引起人们足够的重视。

Power plants and substations are the critical elements for producing and transferring electric energy. In our country, they play bog roles in supplying electricity for industrial and agricultural productions and daily life for people. The requirements and methods of grounding in power plants and substations are analyzed comprehensively, including the significance and purpose of grounding; main problems existing in grounding and relevant solutions; the specification of the grounding resistance; the thermal stability and corrosion-proof requirement of the grounding device ; the forms of grounding net; and concrete request of equipment grounding, etc. The quality of grounding in power plants and substations is directly related to the safety of beth equipment and personnel, which should be paid more attention.