CN202870234U - Online fault monitoring system for 10KV circuit - Google Patents

Abstract

The utility model provides a 10KV line fault on-line monitoring system, which includes an intelligent line fault monitoring terminal, a workstation background computer connected with a transmitting and receiving two-way wireless communication module, a GIS geographic information system and a solar panel; the intelligent line fault monitoring terminal It includes a current sensor or a voltage sensor, a data acquisition processor and a GPRS communication module connected in sequence; the GPRS communication module communicates wirelessly with the two-way wireless communication module for transmitting and receiving; the GIS geographic information system is connected to the background computer of the workstation; The solar panel is connected to the intelligent line fault monitoring terminal. The utility model realizes the digitization and intellectualization of the real-time state and data detection function of the online monitoring system by using computer technology and wireless mobile communication technology, can accurately and quickly locate, greatly improves the reliability of power supply, and has huge advantages economic and social benefits.

Description

10KV line fault online monitoring system

technical field

The utility model relates to an on-line monitoring system applied in a 10KV distribution network, in particular to a 10KV line fault on-line monitoring system.

Background technique

When the 10KV distribution network lines in our country are in operation, they mostly adopt the method of small current grounding. When a line fault occurs, especially a ground fault, the fault signal generated is very weak. Moreover, due to the interference of the grid harmonics, the fault signal is very difficult to obtain, which makes it very difficult to find the fault point.

At present, the electric power unit usually relies on the method of manual segmentation to search for faulty lines. The work efficiency is low and the work intensity is high. Less reliable.

Therefore, it is necessary to provide an online monitoring system to monitor the data of distribution line operation in real time and determine whether there is a fault and the location of the fault, so that maintenance personnel can quickly rush to the fault site and repair it in time to improve the reliability of power supply.

In order to solve the above existing problems, people have been seeking an ideal technical solution.

Contents of the invention

The purpose of the utility model is to aim at the deficiencies of the prior art, thereby providing a 10KV line fault on-line monitoring system with convenient search, accurate measurement, rapid positioning and high reliability.

In order to achieve the above object, the technical solution adopted by the utility model is: a 10KV line fault online monitoring system, which includes an intelligent line fault monitoring terminal, a workstation background computer connected with a transmitting and receiving two-way wireless communication module, a GIS geographic information system and Solar panels; the intelligent line fault monitoring terminal includes a current sensor or a voltage sensor connected in sequence for real-time power parameter change value measurement, a data acquisition processor for processing power parameter data, and a GPRS for connecting to a GPRS wireless network Communication module; the GPRS communication module wirelessly communicates with the transmitting and receiving two-way wireless communication module to upload the power parameter change value measured and collected by the intelligent line fault monitoring terminal to the background computer of the workstation; the GIS geographic information system is connected The background computer of the workstation is used to locate the specific fault point; the solar panel is connected to the intelligent line fault monitoring terminal to provide working power for the intelligent line fault monitoring terminal. the

Compared with the prior art, the utility model has substantive characteristics and progress. Specifically, the utility model realizes the digitalization and intelligence of the real-time status and data detection function of the online monitoring system by using computer technology and wireless mobile communication technology. Once faults such as grounding, short circuit, and disconnection occur, the GIS geographic information system can accurately and quickly inform the workstations and management personnel, and quickly make fault handling decisions, which greatly improves the reliability of power supply and has huge economic and social benefits. .

Description of drawings

Fig. 1 is a schematic diagram of the principle structure of the utility model.

Figure 2 is a schematic diagram of short circuit fault judgment.

Figure 3 is a schematic diagram of ground fault judgment.

Detailed ways

The technical solutions of the present invention will be further described in detail through specific implementation methods below.

As shown in Figure 1, a kind of 10KV line fault on-line monitoring system, it comprises intelligent line fault monitoring terminal, is connected with the workstation background computer of transmitting and receiving two-way wireless communication module, GIS geographical information system and solar panel; Described intelligent line fault The monitoring terminal includes a current sensor FD for real-time measurement of current variation, a data acquisition processor for processing current variation, and a GPRS communication module for connecting to a GPRS wireless network.

The transmitting and receiving two-way wireless communication module is connected with the background computer of the workstation through a USB interface, thereby realizing the two-way wireless communication of the computer workstation; the GPRS communication module communicates wirelessly with the transmitting and receiving two-way wireless communication module to connect the intelligent circuit The current change value measured and collected by the fault monitoring terminal is uploaded to the background computer of the workstation, which not only improves the accuracy and efficiency of fault signal acquisition, but also notifies the work management personnel of fault alarm information in time; the GIS geographic information system is connected to the The background computer of the workstation has played the role of rapid positioning to complete the position location of the specific fault point, and through the GIS geographic information system, the data of each monitoring point can also be mobilized in real time; by using the real-time GPRS wireless network, not only can Check the data situation of each branch line at any time, and analyze according to the data. The solar panel is connected to the intelligent line fault monitoring terminal to provide working power for the intelligent line fault monitoring terminal.

The current sensor FD of the intelligent line fault monitoring terminal shown above can be installed at different monitoring points during specific use, and can perform different fault diagnosis and thus different fault location: when installed at the middle section of the line and at the branch entrance, it can be Indicate the fault section and fault branch of the line; when installed at the exit of the substation, it can be determined whether the fault point is inside or outside the substation; when installed at the incoming line of the user's distribution transformer, it can be determined whether the fault is caused by the user; installed in When the cable is connected to the overhead line, it can be distinguished whether the fault is in the cable segment.

As shown in Figure 2, when a short-circuit fault occurs in the line, the line current increases, and the current sensor FD detects an abnormal signal, and the GPRS communication module of the intelligent line fault monitoring terminal sends the abnormal signal data back to the GPRS wireless network. The background computer of the workstation, the alarm point can appear on the GIS geographic information system after the processing of the workstation background computer, and the circuit breaker disconnects the line at the same time, and the management staff rushes to the scene to handle the accident according to the prompt of the GIS geographic information system .

As shown in Figure 3, when a ground fault occurs in the line, the line current increases, and the current sensor FD detects an abnormal signal, and the GPRS communication module of the intelligent line fault monitoring terminal sends the abnormal signal data back to the GPRS wireless network. The background computer of the workstation, the alarm point can appear on the GIS geographic information system after the processing of the workstation background computer, and the circuit breaker disconnects the line at the same time, and the management staff rushes to the scene to handle the accident according to the prompt of the GIS geographic information system .

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit it; although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should understand that: still The specific implementation of the utility model can be modified or some technical features can be equivalently replaced; without departing from the spirit of the technical solution of the utility model, all of them should be included in the scope of the technical solution claimed by the utility model.

Claims (1)

1. a 10KV line fault on-line monitoring system is characterized in that: it includes an intelligent line fault monitoring terminal, a workstation backstage computer, a GIS geographic information system and a solar panel connected with a transmitting and receiving two-way wireless communication module; the intelligent line fault The monitoring terminal includes a current sensor or a voltage sensor connected in sequence for real-time power parameter change value measurement, a data acquisition processor for processing power parameter data, and a GPRS communication module for connecting to a GPRS wireless network; the GPRS communication module and The transmitting and receiving two-way wireless communication module wirelessly communicates to upload the power parameter change value measured and collected by the intelligent line fault monitoring terminal to the background computer of the workstation; the GIS geographic information system is connected to the background computer of the workstation to complete specific faults Positioning of points; the solar panel is connected to the intelligent line fault monitoring terminal to provide working power for the intelligent line fault monitoring terminal.

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