Portable online residual current monitoring system

A residual current and monitoring system technology, which is applied in the field of monitoring systems, can solve problems such as the inability to collect residual current data, the clamp-on residual current meter has no rainproof function, and cannot be used. The effect of production

Inactive Publication Date: 2015-03-04
南京阿尔易智能科技有限公司
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  • Abstract
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  • Application Information

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

Method used

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Embodiment Construction

[0016] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0017] Such as figure 1 As shown, the portable residual current on-line monitoring system of the present invention includes a GPRS part, an acquisition part, a charging part, a voltage stabilizing part, and a control part; Connect with charging part.

[0018] The voltage regulator part adopts battery input or external 5V input, and the voltage regulator 3.3V is mainly used for power supply of the control part, amplifier, comparator and electronic switch. More filter capacitors are added before and after the regulator part of the circuit to ensure the stability of the onboard IC voltage.

[0019] The charging part uses a P-channel MOS tube to control the input of the system power supply. When the external power supply is connected, the system uses the external power supply and charges t...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/00G01R31/02
Inventor 巫继文张小方陆敏袁莉黄黎明王平任文劼
Owner 南京阿尔易智能科技有限公司
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