CN213715353U - Fault detection system for high-voltage distribution board - Google Patents
Fault detection system for high-voltage distribution board Download PDFInfo
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- CN213715353U CN213715353U CN202023054483.3U CN202023054483U CN213715353U CN 213715353 U CN213715353 U CN 213715353U CN 202023054483 U CN202023054483 U CN 202023054483U CN 213715353 U CN213715353 U CN 213715353U
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- voltage distribution
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Abstract
The utility model discloses a high voltage distribution board fault detection system, this system includes: the monitoring system comprises an information acquisition unit, a data processing unit and a monitoring host, wherein the information acquisition unit can simultaneously acquire transient voltage-to-ground signals, partial discharge signals, infrared thermal imaging images and mechanical vibration signals of the high-voltage distribution board, the data processing unit processes and analyzes data received by the information acquisition unit to realize data processing and storage and fault judgment, and the monitoring host is used for displaying running state information and fault information of the high-voltage distribution board in real time and sending alarm signals in time. The utility model provides a high voltage distribution board fault detection system can carry out real-time online guardianship to the running state of high voltage distribution board, and monitoring content is diversified, has improved failure diagnosis efficiency to can accurate judgement fault type and fault level.
Description
Technical Field
The utility model relates to a power equipment fault detection technical field especially relates to a high voltage distribution board fault detection system.
Background
The high voltage distribution board is one of the most important and complex devices in the power system, and in the power supply and distribution system of the power system, the high voltage distribution device is an important device mainly used for closing and opening power lines, so as to transmit and reverse power loads, and withdrawing fault devices and line segments from the power system, so as to ensure the safe operation of the system. Once a high-voltage distribution board fails, the consequences are very serious, wherein the most direct hazards are the loss of the corresponding protection control circuit, the loss of insulation equipment and the loss of electric quantity of the distribution board, and the indirect hazards are the large-area unplanned sudden power failure accidents caused by the power supply and distribution obstacles of the whole power system, which affect the normal life of residents and the production plan of factories.
At present, in the power industry of China, a regular maintenance system is mostly adopted for maintaining a high-voltage distribution board, although the mode reduces the occurrence of accidents to a certain extent, the blindness is too large, the insufficient maintenance, the excessive maintenance or the omission of the inspection can be caused, and the probability of equipment failure caused by the improper maintenance can be increased. If the regular maintenance system is still adopted, the efficiency is low and the system is not economical. With the increasing requirements of automation and power supply reliability of an electric power system, higher requirements are provided for the reliability of a high-voltage distribution board, so that when the mode of regular maintenance is changed into state maintenance, the current domestic research on a distribution board state monitoring system only carries out fault diagnosis on a certain single performance of the distribution board, the running state of the distribution board cannot be considered in a diversified manner, the problems of single monitoring content, poor data processing capability and the like exist, and the research and the results of online detection on the comprehensive running characteristics and the rapid fault judgment of the high-voltage distribution board are less.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high voltage distribution board fault detection system can carry out real-time on-line monitoring to the running state of high voltage distribution board, and monitoring content is diversified, has improved failure diagnosis efficiency to can accurate judgement fault type and trouble level.
In order to achieve the above object, the utility model provides a following scheme:
a high voltage switchboard fault detection system, the system comprising:
the system comprises an information acquisition unit, a signal processing unit and a signal processing unit, wherein the information acquisition unit comprises a TEV sensor, an ultrasonic sensor, an infrared thermal imager and a vibration sensor, the TEV sensor is used for acquiring transient voltage-to-earth signals of a high-voltage distribution board, the ultrasonic sensor is placed in a gap outside the high-voltage distribution board and used for acquiring local discharge signals of the high-voltage distribution board, the infrared thermal imager is placed outside the high-voltage distribution board and used for acquiring infrared thermal imaging image information of the high-voltage distribution board, and the vibration sensor is placed near a circuit breaker of the high-voltage distribution board and used for acquiring mechanical vibration signals of;
the data processing unit comprises a data acquisition card and a data processing module, the information acquisition unit is electrically connected with the input end of the data acquisition card, the output end of the data acquisition card is electrically connected with the input end of the data processing module, the data acquisition card is used for transmitting signals received by the information acquisition unit to the data processing module, and the data processing module is used for processing and analyzing data transmitted by the data acquisition card so as to realize data processing and storage and fault judgment;
the monitoring host comprises a display and an alarm, wherein the output end of the data processing module is electrically connected with the display, the display is electrically connected with the alarm, the display is used for displaying the state information and the fault information of the operation of the high-voltage distribution board in real time, and the alarm is used for sending out an alarm signal when the high-voltage distribution board breaks down.
Optionally, the ultrasonic sensor includes two ultrasonic probes, and the two ultrasonic probes are respectively placed at different square points of a gap outside the high-voltage switchboard.
Optionally, the data processing module further includes a fault level calculation module, configured to manually set level thresholds of different parameters, so as to determine a corresponding fault level.
Optionally, the alarm is an audible alarm and/or a light alarm.
Optionally, the data processing unit is connected to the monitoring host through a CAN bus.
According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect: the utility model provides a high voltage distribution board fault detection system, TEV sensor through the information acquisition unit, ultrasonic sensor, infrared thermal imager and vibration sensor have realized respectively the acquisition to high voltage distribution board transient state to earth voltage signal, partial discharge signal, infrared thermal imaging image and mechanical vibration signal, data processing unit carries out real-time processing and storage, fault diagnosis to the signal that the information acquisition unit gathered, this process need not the high voltage distribution board outage, can realize the monitoring and the fault diagnosis to insulating properties, the temperature state, mechanical properties parameter, monitoring content is diversified, real-time data processing efficiency is high, fault location judges accurately; the data processing unit is communicated with the monitoring host through the CAN bus, the display of the monitoring host CAN display the running state information and the fault information of the high-voltage distribution board in real time, the alarm CAN send out an alarm signal when the high-voltage distribution board breaks down, the fault is timely found, the labor cost is saved, the fault diagnosis efficiency is improved, the fault type and the fault level CAN be accurately judged, manual immediate maintenance is facilitated, and the safe and reliable running of the distribution board is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic view of the overall structure of a fault detection system for a high-voltage distribution board according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a fault determination method according to an embodiment of the present invention.
Description of reference numerals: 1. a TEV sensor; 2. an ultrasonic sensor; 3. an infrared thermal imager; 4. a vibration sensor; 5. a data acquisition card; 6. a data processing module; 7. a display; 8. an alarm.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a high voltage distribution board fault detection system can carry out real-time on-line monitoring to the running state of high voltage distribution board, and monitoring content is diversified, has improved failure diagnosis efficiency to can accurate judgement fault type and trouble level.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Fig. 1 is the utility model provides a high voltage distribution board fault detection system's overall structure schematic diagram, fig. 2 is the utility model discloses a fault diagnosis method flow schematic diagram, as shown in fig. 1, the embodiment of the utility model provides a high voltage distribution board fault detection system who provides, include: the information acquisition system comprises a TEV sensor 1, an ultrasonic sensor 2, an infrared thermal imager 3 and a vibration sensor 4, wherein the TEV sensor 1 is used for acquiring transient earth voltage signals of a high-voltage distribution board, the ultrasonic sensor 2 is placed in a gap outside the high-voltage distribution board and used for acquiring local discharge signals of the high-voltage distribution board, the infrared thermal imager 3 is placed outside the high-voltage distribution board and used for acquiring infrared thermal imaging image information of the high-voltage distribution board, the vibration sensor 4 is placed near a circuit breaker of the distribution board and used for acquiring mechanical vibration signals of the high-voltage distribution board, the TEV sensor 1, the ultrasonic sensor 2 and the vibration sensor 4 are all connected with respective corresponding conditioning circuits and used for amplifying and filtering the acquired transient earth voltage signals, local discharge signals and mechanical vibration signals, the signal noise is reduced and is matched with the signal receiving range of the signal receiving unit; the data processing unit comprises a data acquisition card 5 and a data processing module 6, the information acquisition unit is electrically connected with the input end of the data acquisition card 5, the output end of the data acquisition card 5 is electrically connected with the input end of the data processing module 6, the data acquisition card 5 is used for transmitting the signals received by the information acquisition unit to the data processing module 6, the data processing module 6 is used for processing and analyzing the data transmitted by the data acquisition card 5, converting the infrared thermal imaging image information into the temperature information of the high-voltage distribution board, further, A/D conversion is carried out on the transient voltage-to-ground signal, the partial discharge signal, the temperature information and the mechanical vibration signal, data summarization, recording, trend graph display, graph analysis and statistical analysis are completed, and data processing, storage and fault judgment are realized; the monitoring host computer, including display 7 and alarm 8, data processing module 6's output with 7 electric connection of display, display 7 with 8 electric connection of alarm, display 7 is used for showing the running state information and the fault information of high voltage distribution board in real time, alarm 8 sends alarm signal when being used for high voltage distribution board to break down.
The ultrasonic sensor 2 comprises two ultrasonic probes which are respectively arranged at different square points of a gap on the outer side of the distribution board, and can monitor partial discharge signals of the high-voltage distribution board in real time from different square points to avoid missing detection; the data processing module 6 further comprises a fault level calculation module for comparing the transient voltage-to-ground voltage signal, the partial discharge signal, the temperature information and the parameter values of the mechanical vibration signal of the high-voltage distribution board with predetermined corresponding parameter level thresholds (early warning, slight, strong and violent), wherein any one parameter value is greater than a certain predetermined threshold, so that the corresponding fault level can be judged, and when multiple faults occur simultaneously, the synchronous judgment can be carried out without mutual intervention; the alarm 8 is a sound alarm and/or a light alarm, and can inform a manager of timely maintenance when a fault occurs, and can also send alarm information in a remote short message and telephone mode; the data processing unit is connected with the monitoring host through a CAN bus and CAN also be connected by an RS485 bus or a wireless communication mode.
The working principle of the system is as follows: as shown in fig. 2, the data processing unit respectively performs data analysis processing on the received transient voltage-to-earth signal, partial discharge signal, infrared thermal imaging image and vibration signal, compares each processed parameter value with a predetermined corresponding threshold level (early warning, slight, strong and violent), determines that the power distribution panel has a fault of the same level when any parameter value is greater than the predetermined threshold of the corresponding level, and sends an alarm signal to the monitoring host, the display interface displays the fault category and the fault level, and the alarm sends the alarm signal; and when the parameter value obtained by processing each signal by the data processing unit is compared with the preset threshold value and is smaller than the preset threshold value of the corresponding grade, the normal operation of the high-voltage distribution board is judged, and the display interface displays the normal operation state information of the distribution board.
The utility model provides a high voltage distribution board fault detection system, TEV sensor through the information acquisition unit, ultrasonic sensor, infrared thermal imager and vibration sensor have realized respectively the acquisition to high voltage distribution board transient state to earth voltage signal, partial discharge signal, infrared thermal imaging image and mechanical vibration signal, data processing unit carries out real-time processing and storage, fault diagnosis to the signal that the information acquisition unit gathered, this process need not the high voltage distribution board outage, can realize the monitoring and the fault diagnosis to insulating properties, the temperature state, mechanical properties parameter, monitoring content is diversified, real-time data processing efficiency is high, fault location judges accurately; the data processing unit is communicated with the monitoring host through the CAN bus, the display of the monitoring host CAN display the running state information and the fault information of the high-voltage distribution board in real time, the alarm CAN send out an alarm signal when the high-voltage distribution board breaks down, the fault is timely found, the labor cost is saved, the fault diagnosis efficiency is improved, the fault type and the fault level CAN be accurately judged, manual immediate maintenance is facilitated, and the safe and reliable running of the distribution board is ensured.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (5)
1. A high voltage switchboard fault detection system, characterized in that it comprises:
the system comprises an information acquisition unit, a signal processing unit and a signal processing unit, wherein the information acquisition unit comprises a TEV sensor, an ultrasonic sensor, an infrared thermal imager and a vibration sensor, the TEV sensor is used for acquiring transient voltage-to-earth signals of a high-voltage distribution board, the ultrasonic sensor is placed in a gap outside the high-voltage distribution board and used for acquiring local discharge signals of the high-voltage distribution board, the infrared thermal imager is placed outside the high-voltage distribution board and used for acquiring infrared thermal imaging image information of the high-voltage distribution board, and the vibration sensor is placed near a circuit breaker of the high-voltage distribution board and used for acquiring mechanical vibration signals of;
the data processing unit comprises a data acquisition card and a data processing module, the information acquisition unit is electrically connected with the input end of the data acquisition card, the output end of the data acquisition card is electrically connected with the input end of the data processing module, the data acquisition card is used for transmitting signals received by the information acquisition unit to the data processing module, and the data processing module is used for processing and analyzing data transmitted by the data acquisition card so as to realize data processing and storage and fault judgment;
the monitoring host comprises a display and an alarm, wherein the output end of the data processing module is electrically connected with the display, the display is electrically connected with the alarm, the display is used for displaying the state information and the fault information of the operation of the high-voltage distribution board in real time, and the alarm is used for sending out an alarm signal when the high-voltage distribution board breaks down.
2. The high voltage switchboard fault detection system according to claim 1, characterized in that said ultrasonic sensors comprise two ultrasonic probes placed at different points of the slot outside the high voltage switchboard.
3. The system according to claim 1, wherein the data processing module further comprises a fault level calculation module for manually setting thresholds for different parameter levels to determine the corresponding fault level.
4. The high voltage switchboard fault detection system according to claim 1, characterized in that said alarm is an acoustic alarm and/or a light alarm.
5. The high voltage switchboard fault detection system according to claim 1, characterized in that said data processing unit is connected to said monitoring host through a CAN bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023054483.3U CN213715353U (en) | 2020-12-17 | 2020-12-17 | Fault detection system for high-voltage distribution board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023054483.3U CN213715353U (en) | 2020-12-17 | 2020-12-17 | Fault detection system for high-voltage distribution board |
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| CN213715353U true CN213715353U (en) | 2021-07-16 |
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| CN202023054483.3U Expired - Fee Related CN213715353U (en) | 2020-12-17 | 2020-12-17 | Fault detection system for high-voltage distribution board |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899973A (en) * | 2021-10-11 | 2022-01-07 | 四川华能嘉陵江水电有限责任公司 | Power generation equipment fault diagnosis method based on infrared thermal imaging and visible light image |
| CN116203362A (en) * | 2023-02-10 | 2023-06-02 | 深圳市云帆自动化技术有限公司 | Distribution panel state monitoring system |
-
2020
- 2020-12-17 CN CN202023054483.3U patent/CN213715353U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899973A (en) * | 2021-10-11 | 2022-01-07 | 四川华能嘉陵江水电有限责任公司 | Power generation equipment fault diagnosis method based on infrared thermal imaging and visible light image |
| CN116203362A (en) * | 2023-02-10 | 2023-06-02 | 深圳市云帆自动化技术有限公司 | Distribution panel state monitoring system |
| CN116203362B (en) * | 2023-02-10 | 2023-09-19 | 深圳市云帆自动化技术有限公司 | Distribution panel state monitoring system |
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| CF01 | Termination of patent right due to non-payment of annual fee |