Research On The Influence Of Residual Current On Power Supply Reliability Of Rural Power Network

In the end of the rural power grid,directly facingthe rural customers,is an important link between power supply enterprises and ruralelectric power customers,along with the rapideconomic and social development in rural areasand farmers living standards continue toimprove,making the rural customers of ruralpower supply reliability put forward higher requirements.At present,the rural power grid analysis andresidual current informatization level is relatively backward,the power supply enterprise can not be promptly informed of the running state of therural power grid,because once the residual current is too large,occurrence of tripping low-voltage protection,or other reasons caused bypower outages,power supply enterprises cannot get the power of information in the first time,seriously affecting the reliability of powersupply,put forward a severe the challenge for the power supply enterprise service quality and efficiency.In this paper,the distribution of residual current in rural power grid system is studied.The change law,identification method and distribution of residual current signal are studied,and the calculation method of equivalent leakage current is analyzed.The data analysis unit of the power outage repair event belongs to this author,found that the influence factors of residual current of rural power supply reliability,accordingly the development of the rural power grid leakage current remote monitoring system,combined with the actual situation of rural power units,through the design of physical and communication framework,the distribution transformer circuit breaker intelligent terminal take the transformation,and electricity acquisition system information integration method,realize remote on-line monitoring of the running state of rural low-voltage power grid residual current and low voltage switch,typical for rural power supply reliability analysis of disposal of the accumulated experience,based on various types of data acquisition system for analysis,to reduce the pilot rural low area the repair rate of the target,so as to enhance the rural power supply reliability.