Miniaturized relay protection intelligent terminal device with clamping structure

Abstract

The invention discloses a miniaturized relay protection intelligent terminal device adopting a clamping structure and realizing a method for replacing a relay protection device or an intelligent terminal without power failure of a switch cabinet. This device consists of three parts: the device body, the base and the installation base: the base is fixedly installed on the body, and all the internal AC and DC measurement, status input, control output, power supply, communication and other input and output leads are connected to the base; The base is connected to all external input and output leads; the base and the installation base are docked by plugging and locking (as shown in the figure). When the device is clamped and locked on the installation base, the installation is completed and can run normally. When the device is pulled out, the device is disassembled and stops working. Using this device can simplify the installation and maintenance of distribution networks and micro-grids, and improve power supply The reliability of the power grid has a very positive and significant significance for the safe and stable economic operation of the power grid.

Description

technical field [0001] The invention discloses a method for using a miniaturized relay protection intelligent terminal device with a clamping structure to realize the replacement of a relay protection device and an intelligent terminal without power failure in a switch cabinet, which involves power generation, transmission, distribution, power consumption and its field of automation technology. Background technique [0002] With the large-scale access of photovoltaic, wind power, energy storage, electric vehicles and other new energy sources and their application equipment, the development of intelligent distribution network, micro-grid and demand side will become the main direction of the development of traditional power grid. The modernized distribution network, micro-grid, and demand side have become the key investment and development direction of the global power grid at present and in the future. —Relay protection devices and intelligent terminals installed on switch c...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the products that can be provided in the market and actually installed and operated adopt the method of fixed installation and terminal wiring, and some of them adopt the method of plugging and unplugging terminals for electrical connection. different, need to use different plug terminals to achieve plug-in connection, see figure 1 , so the structure of these devices is complicated, installation and debugging are troublesome, maintenance and replacement requires a power outage of the switchgear, requiring professional engineering and technical personnel or even technical experts from the manufacturer to go to the site to deal with it, resulting in a considerable number of protection devices and intelligent terminal equipment. It is an automatic device that was originally put into operation to improve power supply reliability and reduce power outage time, but due to its own structural defects and maintenance difficulties, it affects the normal operation of the power grid, and even reduces the reliability of the power grid in many cases.

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