Analysis of a 10 kV Bus Voltage Loss Fault in a 110 kV Substation
This paper analyzes the cause of a 10 kV bus voltage loss in a 110 kV substation.The main rea-son is that the aging of the equipment causes the single-phase grounding fault of the 10 kV switch cabinet,which then develops into two-phase and three-phase faults,and finally leads to the explosion of the switch cabinet,and the fault of the low-voltage side of the main transformer,resulting in the 10 kV bus voltage voltage loss.Based on the fault causes analysis,this paper puts forward some fault prevention suggestions from the aspects of management and technology,so as to ensure the safe and stable operation of power sys-tem.
bus voltage lossfaultswitch cabinetsingle phase grounding
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