Intelligent low-voltage cable branching box, running method thereof and intelligent power distribution area

Abstract

The invention proposes an intelligent low-voltage cable branching box, a running method thereof and an intelligent power distribution area. The intelligent low-voltage cable branching box comprises anintelligent monitoring terminal, a main bus, an isolation switch, a box door travel switch and intelligent residual current action circuit breakers, wherein the intelligent monitoring terminal is connected with a power cable at a power side of the isolation switch via a low-voltage power line, the intelligent monitoring terminal is connected with an auxiliary switch of the isolation switch and the box door travel switch via a control cable, one end of the main bus is connected with a load side of the isolation switch, and the other end of the main bus is connected with at least two intelligent residual current action circuit breakers. A low-voltage power line carrier communication technology is employed, the power cable is used as a communication medium, running data acquisition and transmission of the power distribution area are achieved, the intelligent low-voltage cable branching box has the technical advantages of wiring free, performance stability, communication channel reliability, consistent physical reliability of the low-voltage power distribution network and the like and is simple to construct and convenient to maintain and manage, and the coverage range and the low-voltage power distribution network are consistent.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to an intelligent low-voltage cable branch box, an operating method thereof, and an intelligent distribution station area. Background technique [0002] At present, the automation level of power distribution equipment in the distribution station area is low, and there is generally a lack of effective equipment monitoring methods and operation monitoring measures. The big data analysis of the corresponding station area lacks the most basic underlying data, which cannot effectively support the operation and inspection of the power supply company. The needs of distribution network fault fast, ready to locate and refined management of the station area. The low-voltage cable branch box is an important secondary power distribution equipment in the distribution station area. It is mainly used for the connection between the distribution transformer in the station area and the centra...

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Problems solved by technology

[0003] The intelligent low-voltage cable branch box in the conventional distribution station area uses optical fiber communication. During construction, it is necessary to lay communication cables and excavate communication cable trenches. The project investment is large and the construction period is long.

In addition, since communication cables are generally laid by direct burial, once a fault occurs, it is difficult to troubleshoot and repair

[0004] In addition to the use of optical fiber communication, micro-power wireless communication technology can also realize data transmission in intelligent low-voltage cable branch boxes. Although it has the advantage of free wiring, signal transmission is easily affected by building obstacles, and the transmission distance is short and the communication rate is low. , The cost is high, and it cannot meet the communication requirements of the intelligent distribution station construction

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