Distribution line tree line faults caused by forest fires cases are endless

the study of tree line faults occurring when the characteristic signal and determine the fault relative to the prevention of mountain fire accidents is of great significance. In this paper

through theoretical analysis and building a real experimental platform

the study of different trees occurring single-phase tree line fault when the zero sequence voltage change rule. Through the single-phase tree line fault experiments

the study of different trees touching the line when the zero-sequence voltage and tree species and moisture content of the relationship between the study of the different zero-sequence voltage range of phase voltage change law

got the tree line discharge development process when the phase voltage changes significantly in three zero-sequence voltage interval. The results show that the time when the zero-sequence voltage first reaches the maximum value when a single-phase tree line fault occurs is related to the tree species

and the maximum value first reached is related to the water content of the tree and the capacitance to ground. When a tree line fault occurs

the trend of the overrun phase voltage is the same as that of the zero sequence voltage

the trend of the fault phase voltage is opposite to that of the zero sequence voltage

and the trend of the lagging phase voltage is to decrease first and then increase as the zero sequence voltage increases.