Surge locating system

摘要

When a surge occurs, a voltage is generated on the neutral point of the Y-connected three-phase alternating current transmission line because of losing a voltage balance on the three-phase alternating current transmission line. Thus the surge location is accomplished by detecting the voltage generated at said neutral point. The neutral point is grounded, and the surge locating system according to the present invention is installed between said neutral point and the grounding point. The voltage generated in the neutral point is introduced into the surge locating system and the detecting time thereof is stored. This detecting time is stored in the respective stations, and the surge point can then be located based on the detecting time difference between the stations. This provides a surge locating system and a method thereof locates the surge with high accuracy and with relatively simple structure.