Regional power grid T line fault range-finding system based on generalized measurement

The invention discloses a regional power grid T line fault range-finding system based on generalized measurement, and the system employs distributed sampling terminals, a communication network, and a traveling wave range-finding analysis center. The distributed sampling terminals comprise non-contact voltage and current traveling wave collection devices disposed at poles, and each non-contact voltage and current traveling wave collection device collects an abrupt signal of a traveling wave, and uploads the abrupt signal to the traveling wave range-finding analysis center of a main station through a communication network. The traveling wave range-finding analysis center calculates the position of a fault point through employing the information uploaded by the sampling terminals, taking the time marks of two ends of a fault branch circuit as the references, combining the parameters of the fault branch circuit and employing a double-end traveling wave fault range-finding theory, thereby achieving the fault range