Device and method for monitoring distribution network

Abstract

The invention discloses a device and a method for monitoring a distribution network. The device comprises a power distribution main station and a power distribution automation terminal in communication connection with the power distribution main station, wherein the power distribution automation terminal comprises a main control board, a remote metering board, a remote signaling board and a remote control board and is used for monitoring the state of ground power distribution lines and the state of underground manhole covers. The device further comprises front terminals, wherein the front terminals are arranged in one-to-one correspondence to all the manhole covers, provided with built-in small wireless modules, and used for sending manhole cover alarm information including corresponding manhole cover numbers when the manhole covers are illegally opened. According to the device and the method, the power distribution automation terminal not only has the function of power distribution line monitoring, but also is in communication connection with the front terminals, uploads the manhole cover alarm information to the power distribution main station, and controls the remote control board to command alarms to alarm, and thus, a concentrator in an original manhole cover monitoring system is replaced; and the dual monitoring on the ground power distribution lines and the underground manhole covers is achieved, the combination of ground power distribution line monitoring and underground manhole cover monitoring is optimized, the cost is reduced, and monitoring components are reduced.

Description

technical field [0001] The invention relates to the field of distribution network automation, in particular to a distribution network monitoring device and a monitoring method. Background technique [0002] The distribution automation terminal is a monitoring terminal product developed for the ring main unit, small switching station, and power distribution room that are more and more widely used in the current urban power grid. It can cooperate with the substation system of the distribution network automation master station to realize multiple Data collection of each line, fault detection, fault area location, isolation and non-fault area restoration of power supply, improve the power supply reliability of the line. [0003] Starting from the transformation of urban and rural power grids, industrial and mining enterprises, urban landscape streets, high-rise buildings, etc. have generally realized cableization. Considering cabled power supply, ring network power supply has ...

AI Technical Summary

Problems solved by technology

That is to say, the existing underground manhole cover monitoring system and the above-ground power distribution line monitoring system are two independent systems. To complete the above-ground power distribution line monitoring and underground manhole cover monitoring, two systems are required, which are costly and have a large number of components.

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