| 摘要 |
PROBLEM TO BE SOLVED: To find a surge propagation velocity to be used for fault location with higher precision, and perform the location of a fault point with high precision. SOLUTION: The surge propagation velocity for performing location of a fault point is calculated by executing processing consisting of a first step for selecting a plurality of pairs of combinations composed of each one pair of substations being in a relation of arrangement interposing a fault section between, and a second step for calculating surge arrival time at each substation from data on a surge waveform received from each substation, and calculating a surge propagation velocity at which the variations of located fault positions in each combination become minimum by data on surge arrival time at each substation in each selected combination and each length of transmission/distribution lines between the substations stored beforehand in a storage means. COPYRIGHT: (C)2006,JPO&NCIPI
|
