Application Research On Grounding Fault Process Control In 10kV System

Along with power grid development,the capability of power grid become strong,the reliability of power grid are demanded more reliable,the power grid require more intelligent.Conventional arc suppression coil expose more disadvantage.For example,can't distinguish between instantaneous grounding and the permanent grounding fault automatic and dispose the fault differently,ground faults lasting long time is not conducive to the safety of equipment and personal.And now,an urgent need to seek a more perfect new grounding mode on the basis of the existing,in order to adapt to the development of distribution net automation,solving the control capability of power grid on the ground fault.This project overcomes the limitations of previous studies,with the idea of the system,intelligent detection,recognition and processing of complex ground fault,realization of complex grounding fault process control in 10 kV system.Overcome the limitations of previous studies of isolation,the creative fusion of two kinds of grounding equipment arc suppression coil and small resistance,distinguish between the instantaneous grounding and the permanent grounding in the single phase ground fault and take different measures,so that it can avoid transient fault trip and can ensure permanent ground fault location and isolation in timely.To solve the problems of the 10 kV neutral point non grounding system in the complex grounding fault condition,the fault types can be identified accurately and quickly.A fully automatic processing equipment for grounding fault of 10 kV neutral point non grounded system based on large capacity DFACTS technology is developed.Enhanced processing of 10 kV neutral grounding system grounding fault capacity,improve the power supply security and reliability of smart grid.