Protection device for industrial and residential electric lines and based on breaker

Abstract

The invention discloses a protection device for industrial and residential electric lines and based on a breaker. The protection device comprises a temperature sensor, a current transformer and a leakage current transformer which are separately used for collecting temperature, current and leakage current information of the electric lines; and the temperature sensor, the current transformer and theleakage current transformer are separately connected to a processor through a data acquisition module. The protection device has the beneficial effects that the current, temperature and leakage current values of the electric lines can be collected in real time, alarming or loop cutting off is controlled according to the collected values, and the purposes of protecting the production and living safety of the residents and protecting the electric lines are achieved.

Description

technical field [0001] The invention relates to the technical field of circuit breakers, in particular to a circuit breaker-based protection device for industrial and residential power lines. Background technique [0002] From 2011 to 2016, 524,000 electrical fires occurred in my country's factories, resulting in 3,261 deaths, 2,063 injuries, and direct economic losses of more than 9.2 billion yuan, accounting for more than 30% of the total number of fires and casualties in the country. There were 17 fires, accounting for 70% of the total number of major fires. The main factors that cause electrical fires are caused by excessive cable temperature, current overload, residual current overload, and ignition arc. Especially for office buildings and residential buildings with a service life of more than 15 years, the probability of electrical fires increases sharply. [0003] With the development of global smart manufacturing and smart fire-fighting Internet of Things, whether i...

AI Technical Summary

Problems solved by technology

Traditional circuit breakers cannot achieve these functions. In order to meet the requirements, it is necessary to add line detection and protection equipment on the basis of traditional circuit breakers; there are many problems in the existing line detection and protection equipment on the market, such as:

[0004] (1) Only the main incoming line of the distribution box (including: control cabinet or electric control box, etc.) is monitored, and fine monitoring of each branch circuit breaker cannot be realized;

[0005] (2) Due to the different number of circuit breakers in the distribution box, if you want to detect each circuit breaker, in the limited installation space, the installation of each line detection and protection equipment will lead to confusion in the layout

[0006] (3) The existing line monitoring device is too large to be installed in the distribution box;

[0007] (4) In a narrow space, multiple sensors in a row cannot be installed in parallel, and the spatial positions need to be staggered up, down, left, and right; it takes up a lot of space and is difficult to install. When the space is too small, it may lead to failure to install

[0008] (5) The power supply line and the sensor connection line are intricate, which affects heat dissipation, aesthetics inside the cabinet, and electrical maintenance;

[0009] (6) During the installation of the line monitoring device, the on-site equipment has a long power outage and the installation site is chaotic, which may easily cause safety accidents for the installers

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