Intelligent power distribution network ring main unit on-line monitoring device

Abstract

The invention discloses an intelligent power distribution network ring main unit on-line monitoring device which comprises a processor module, a partial discharge on-line detection unit, a mechanical characteristic on-line detection unit, a communication interface unit and a man-machine interface unit. The partial discharge on-line detection unit, the mechanical characteristic on-line detection unit and the processor module are connected through SPI interfaces. The communication interface unit and the man-machine interface unit are connected with the processor module through an Ethernet PHY interface and a serial UART interface. The communication interface unit comprises an Internet of Things micropower communication module; each module of the partial discharge on-line detection unit internally comprises a high-speed sampling circuit; each module of the mechanical characteristic on-line detection unit internally comprises a low-speed sampling circuit. Aiming at different types of on-line monitoring, the evaluation level of the health degree of the ring main unit is effectively improved through a multi-dimensional data analysis solution.

Description

technical field [0001] The invention relates to an online monitoring device for a ring network cabinet of an intelligent distribution network, belonging to the field of online monitoring of a ring network cabinet for an intelligent distribution network. Background technique [0002] In recent years, my country has continuously increased investment in the construction of distribution networks, urban distribution networks have developed rapidly, and the quality of power supply has been significantly improved. The ring network cabinet has been widely used due to its simple structure and flexible installation methods. Due to the large number of RMUs scattered outdoors, maintenance is difficult. Inherent defects caused in the design, manufacture, installation and other links are likely to cause problems such as cable lap failure, operating mechanism failure, cable support insulator and busbar pile head discharge, and gas chamber failure after installation and commissioning of th...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an online monitoring device for the ring network cabinet of the intelligent distribution network to solve the problem of the number of online monitoring equipment installed on the ring network cabinet, the large number of manufacturers and the overlapping of some functions, which is not conducive to the operation and maintenance of the ring network cabinet management problem

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