Portable online residual current monitoring system

Abstract

The invention discloses a portable online residual current monitoring system which comprises a GPRS (General Packet Radio Service) part, an acquisition part, a charging part, a voltage stabilizing part and a control part, wherein the GPRS part, the acquisition part and the voltage stabilizing part are all connected with the control part; the GPRS part and the voltage stabilizing part are connected with the charging part. The portable online residual current monitoring system realizes electric leakage detection and fault indication alarming functions; in addition, the portable online residual current monitoring system also realizes volume miniaturization.

Description

technical field [0001] The invention relates to a monitoring system, in particular to a portable residual current online monitoring system. Background technique [0002] At this stage, in the operation and maintenance of the rural low-voltage power grid, there are two ways to detect the residual current value of multiple nodes on the line: [0003] 1. Install an intelligent switch with residual current data acquisition function on relevant nodes for automatic detection. The main structure and working principle of the intelligent switch with residual current data acquisition function are as follows: The intelligent switch with residual current data acquisition function is actually an upgrade The version of the leakage protection switch, on the basis of realizing the original leakage protection function, adds data acquisition and storage functions, collects the residual current value on the line through the residual current transformer, and stores it in the memory for users to...

AI Technical Summary

Problems solved by technology

The problems and disadvantages brought by the use of the clamp residual current meter are as follows: the battery life of the clamp residual current meter is poor, and it cannot support long-term online operation

The clamp-on residual current meter has no rainproof function, and cannot be used in rainy or humid environments, and rainy days are precisely when the power supply department most needs to detect the residual current data of the line

The data acquisition frequency of the clamp residual current meter is low, and only the residual current data that exists all the time can be collected, and the sudden residual current data cannot be collected

The clamp-on residual current meter has no data networking function, and the data collected by each device can only be viewed independently, and it is impossible to browse and analyze the data of all nodes on a unified platform

Clamp-on residual current meter has a small memory and cannot support large-scale storage for long-term operation

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