Low-voltage intelligent distribution control and protection system and control and protection method thereof

Abstract

The invention discloses a low-voltage intelligent distribution control and protection system and a control and protection method thereof. A low-voltage intelligent control and protection module is connected between a general power supply end and a general load end in a general loop; the general power supply end is connected to an AC 220 V wire incoming end through a general isolation switch; the input ends of multiple double-branch control and protection modules are connected to the general load end; the output end of the double-branch control and protection module is connected with a fire wire and a zero wire of each branch load; each double-branch control and protection module comprises a control circuit and a protection circuit; and three input ends of the control circuit of the double-branch control and protection module are respectively connected with the output end of the protection circuit, the output end of a WIFI module and the output end of a branch touch switch. The intelligent degree is high, the control and protection functions are comprehensive, the mounting and the use are simple, the maintenance is convenient, and the cost performance is high.

Description

technical field [0001] The invention belongs to the technical field of electric power distribution, and in particular relates to a low-voltage intelligent power distribution control and protection system and a control and protection method thereof for electric terminal users to realize intelligent control and intelligent protection. Background technique [0002] Most of the power distribution equipment of existing electrical end users are assembled by air switches and leakage protectors. Some of the remaining parts have added remote intelligent control functions, and some have added fault pre-detection protection functions. Some have integrated the remote intelligent control function and the pre-check intelligent protection function. In the existing low-voltage power distribution equipment, the distribution box assembled by the air switch and the leakage protector is troublesome to install, and the protection function is single, which is easy to cause electrical safety accid...

AI Technical Summary

Problems solved by technology

In the existing low-voltage power distribution equipment, the distribution box assembled by the air switch and the leakage protector is troublesome to install, and the protection function is single, which is easy to cause electrical safety accidents and electrical fires; the intelligent distribution box with remote monitoring function added , only added remote intelligent control function, no intelligent protection function, and single protection function, which is also easy to cause electrical safety accidents and electrical fires; an intelligent power distribution safety system that has integrated remote intelligent control function and fault pre-detection intelligent protection function , because there is no fault-free automatic reclosing function, after the fault trips and powers off, it leads to the failure of normal power consumption in many cases (in the actual power consumption process, some electrical faults can be cleared by themselves); fault pre-detection protection It is easy to generate false alarms and cause normal use. At the same time, for the sake of beauty, the product adopts an integrated glue filling structure inside. As long as a branch or a component of the product fails, the entire product must be replaced, and maintenance is very inconvenient. , and the maintenance cost is too high. The so-called maintenance is actually scrapping a complete product and replacing it with a complete new product; all low-voltage intelligent distribution boxes do not have a main circuit isolating switch (main circuit breaker) , which does not meet the mandatory standard requirements of the National Certification Committee for distribution boxes; these intelligent power distribution equipment uses key switches or tact switches to indirectly control the on-off of each branch, and multiple key switches or tact switches are convex. The panel of the body is very unsightly, not up to the grade, and the assembly process is troublesome

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