CN216159923U - Intelligent monitoring system for comprehensive operation state of box-type substation - Google Patents
Intelligent monitoring system for comprehensive operation state of box-type substation Download PDFInfo
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- CN216159923U CN216159923U CN202121948009.7U CN202121948009U CN216159923U CN 216159923 U CN216159923 U CN 216159923U CN 202121948009 U CN202121948009 U CN 202121948009U CN 216159923 U CN216159923 U CN 216159923U
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Abstract
The utility model relates to the technical field of power monitoring equipment, in particular to an intelligent monitoring system for the comprehensive running state of a box-type substation, which comprises an intelligent dehumidifier, a multifunctional partial discharge sensor group, a high-frequency current sensor, a temperature sensor group, a field data processing and displaying host and data remote transmission equipment, wherein the intelligent dehumidifier, the multifunctional partial discharge sensor group, the high-frequency current sensor and the temperature sensor group respectively transmit monitoring data to the data processing and displaying host, and the data remote transmission equipment receives the data transmitted by the data processing and displaying host and further transmits the data to a background control system for displaying. The intelligent dehumidifier, the infrared temperature measurement and the partial discharge monitoring are integrated, the safe operation of the box-type substation is guaranteed, and the technical problems that the existing monitoring device is single in monitoring function and lacks of integral monitoring on the comprehensive operation state of the box-type substation can be effectively solved.
Description
Technical Field
The utility model relates to the technical field of power monitoring equipment, in particular to an intelligent monitoring system for comprehensive operation states of a box-type substation.
Background
The box-type substation is a complete set of distribution equipment formed by combining a high-voltage switch device, a power transformer and a low-voltage distribution device in a box body according to a certain wiring mode, and is applied to places such as residential areas, business centers, hospitals, schools, factory and mining enterprises, wind power generation, public places, temporary equipment and the like. Because box-type substation installs in the open air, is in the open air for a long time and receives environmental factor influence easily, works under humid environment for a long time, the phenomenon of rustting appears easily. The installation mode of the box-type substation generally adopts a hoisting mode, the insulation defect can be caused when the installation process is not in place, and the lightning stroke phenomenon generated in the external thunderstorm weather can also cause the damage of components and parts so as to generate the discharge and temperature rise phenomena. At present, the box-type substation mainly adopts a single means of installing a dehumidifier to reduce the humidity in the cabinet, the temperature and the local discharge of the box-type substation are not integrally monitored, and if the external temperature drops sharply, the moisture in the air is liquefied and condensed on the surface of the switch cabinet, so that the danger coefficient of the switch cabinet is increased, and potential safety hazards are brought to the operation of a power grid.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides an intelligent monitoring system for the comprehensive operation state of a box-type substation, which integrates an intelligent dehumidifier, infrared temperature measurement and local monitoring, provides guarantee for the safe operation of the box-type substation, and can effectively solve the technical problems that the existing box-type substation monitoring device has a single monitoring function and is lack of integral monitoring on the comprehensive operation state of the box-type substation.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
an intelligent monitoring system for comprehensive operation state of a box-type substation comprises an intelligent dehumidifier, a multifunctional partial discharge sensor group, a high-frequency current sensor, a temperature measuring sensor group, a field data processing and displaying host and data remote transmission equipment, wherein the intelligent dehumidifier, the multifunctional partial discharge sensor group and the temperature measuring sensor group are arranged on the inner wall of each high-voltage cabinet of the box-type substation; the intelligent dehumidifier, the multifunctional partial discharge sensor group, the high-frequency current sensor and the temperature measurement sensor group respectively transmit monitoring data to the data processing display host, and the data remote transmission equipment receives the data transmitted by the data processing display host and further transmits the data to the background control system for display.
Furthermore, the humidity in the box-type substation cabinet is monitored in real time by the intelligent dehumidifier, humidity data are transmitted to the data processing and displaying host for on-site display and early warning, and water drops collected by the intelligent dehumidifier are discharged out of the cabinet body through a water pipe.
Further, the sensor group is put in multi-functional office includes superfrequency sensor and ultrasonic sensor, superfrequency sensor and ultrasonic sensor encapsulation are in same shell.
Further, the multifunctional partial discharge sensor group is installed in the box-type substation in a strong magnetic or strong glue mode and corresponds to A, B, C three-phase cables. And detecting different partial discharge defects by using different detection frequency bands in an ultrahigh frequency and ultrasonic wave integrated mode.
Furthermore, the high-frequency current sensor is installed on a high-voltage cable grounding wire in a buckling mode, and a high-frequency current signal on the high-voltage cable grounding wire is monitored in real time to judge the running state of the cable.
Furthermore, the temperature sensor group comprises an infrared temperature sensor, a laser range finder and an air temperature sensor, wherein the infrared temperature sensor provides temperature compensation for improving the detection precision of the infrared temperature sensor through the distance measured by the laser range finder, and the air temperature sensor detects the real-time environment temperature to adjust the early warning setting value of the infrared temperature sensor. Meanwhile, the laser beam emitted by the laser range finder can also provide reference for focusing of the infrared temperature measurement sensor.
Furthermore, the temperature measurement sensor group is installed in the box-type substation in a rotating bracket mode, so that different temperature measurement angles can be adjusted conveniently, and measurement points are more accurate.
Further, the data processing display host adopts a liquid crystal display screen to display data. The data processing and displaying host machine receives, transmits and stores data of all the installation equipment and displays the data in a liquid crystal mode, transmits monitoring data and alarm data to a remote background control system through data remote transmission equipment to be displayed,
furthermore, the data remote transmission equipment adopts a GPRS-DTU to carry out data remote transmission and equipment positioning.
Furthermore, the intelligent dehumidifier, the data processing and displaying host and the data remote transmission equipment adopt a guide rail type installation method.
Compared with the existing box-type substation monitoring device, the intelligent monitoring system for the comprehensive operation state of the box-type substation provided by the utility model has the following beneficial effects:
according to the intelligent monitoring system for the comprehensive operation state of the box-type substation, disclosed by the utility model, the box-type substation is monitored in real time in multiple angles and multiple directions in a detection mode of combining intelligent dehumidification, multifunctional partial discharge monitoring, high-frequency current detection and infrared temperature measurement, so that the safe operation of the box-type substation is ensured, and meanwhile, a non-contact monitoring mode is adopted, so that a creepage phenomenon caused by contact with a detected object is avoided. Through the humidity in the intelligent dehumidifier real-time supervision box-type substation cabinet of installation, guaranteed the control of humidity in the cabinet and avoided the influence that equipment rusted and caused under the humidity environment for a long time, avoid the potential safety hazard that conventional heating type dehydrating unit brought for the electric wire netting operation simultaneously. The method combines ultrasonic, ultrahigh frequency and high frequency current detection technologies to detect the partial discharge signal, and simultaneously performs data acquisition on various signals generated by partial discharge, thereby avoiding noise interference around and improving the accuracy of partial discharge detection. The temperature early warning system combining the laser range finder, the infrared temperature measuring sensor and the surface temperature sensor improves the accuracy of temperature early warning, and plays a role in monitoring the temperature rise phenomenon caused by equipment aging under the condition that the equipment is in a high load for a long time. The field data processing display host machine adopts a liquid crystal display screen to display data so that inspection personnel can observe the data, all monitoring data are transmitted to the background control system in time by utilizing a data remote transmission function, and all box-type substations provided with monitoring equipment are remotely monitored.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is an installation schematic diagram of an intelligent monitoring system for comprehensive operation state of a box-type substation according to the utility model;
fig. 2 is a structural flow chart of the intelligent monitoring system for the comprehensive operation state of the box-type substation.
The reference numbers in the figures illustrate: 1. an intelligent dehumidifier; 2. a multifunctional partial discharge sensor group; 3. a high-frequency current sensor; 4. a temperature sensor group; 5. the data processing display host computer; 6. data remote transmission equipment; 7. a high-voltage cable ground wire; 8. a high voltage wire inlet chamber; 9. and a transformer chamber.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the intelligent monitoring system for the comprehensive operation state of the box-type substation provided by the utility model comprises an intelligent dehumidifier 1, a multifunctional partial discharge sensor group 2, a high-frequency current sensor 3, a temperature measurement sensor group 4, a field data processing display host 5 and a data remote transmission device 6. The intelligent dehumidifier 1, the multifunctional partial discharge sensor group 2 and the temperature sensor group 4 are all arranged on the inner walls of a high-voltage wire inlet chamber 8 and a transformer chamber 9 of the box-type substation. Wherein, the intelligent dehumidifier 1 adopts a guide rail type installation method; the multifunctional partial discharge sensor group 2 adopts a strong magnetic or strong glue method and is installed corresponding to A, B, C three-phase cables; the temperature sensor group 4 adopts a mounting mode of a rotating bracket so as to adjust different temperature measurement angles and enable a measurement point to be more accurate. The high-frequency current sensor 3 is mounted on the high-voltage cable ground 7 in a snap-fit manner. The data processing display host 5 and the data remote transmission device 6 are arranged on the inner wall of the high-voltage incoming line chamber 8 in a guide rail type installation method.
As shown in fig. 2, the intelligent dehumidifier 1, the multifunctional partial discharge sensor group 2, the high-frequency current sensor 3 and the temperature measurement sensor group 4 respectively transmit monitoring data to the data processing display host 5, and the data remote transmission device 6 receives the data transmitted by the data processing display host 5 and further transmits the data to the background control system for display.
The intelligent monitoring system comprises the following units:
The multifunctional partial discharge sensor group 2 comprises an ultrahigh frequency sensor and an ultrasonic sensor which are packaged in the same shell, adopts an ultrahigh frequency and ultrasonic integration mode, and utilizes different detection frequency bands to detect different partial discharge defects, wherein the ultrasonic detection mode has good directivity, and provides reference for positioning partial discharge phenomena.
The high-frequency current sensor 3 monitors a high-frequency current signal on the ground wire 7 of the high-voltage cable in real time, weak high-frequency current which is generated on the ground wire when a partial discharge phenomenon occurs can be detected in real time, and the running state of the cable can be judged.
The temperature sensor group 4 comprises an infrared temperature sensor, a laser range finder and an air temperature sensor, the infrared temperature sensor provides temperature compensation for improving the detection precision of the infrared temperature sensor through the distance measured by the laser range finder, and the air temperature sensor detects the real-time environment temperature to adjust the early warning fixed value of the infrared temperature sensor. The infrared temperature measurement sensor has the characteristics of high response speed and high precision, different temperature compensation can be provided according to different measurement distances of temperature measurement problems by adopting the laser range finder, the detection precision of the infrared temperature sensor is further improved, and the laser beam emitted by the laser range finder also provides reference for focusing of the infrared temperature measurement sensor. The air temperature sensor detects the current ambient temperature, and the infrared temperature measurement sensor can change the early warning setting value according to the current ambient temperature, so that the problem of setting the temperature setting values in different seasons is solved.
The data processing and displaying host 5 displays data through a liquid crystal display screen, receives, transmits and stores data of all installation equipment, displays the data through a liquid crystal display screen, and transmits monitoring data and alarm data to a remote background through the data remote transmission equipment 6 for displaying.
The data remote transmission equipment 6 adopts GPRS-DTU to carry out data remote transmission and equipment positioning.
The intelligent monitoring system for the comprehensive operation state of the box-type substation provided by the utility model can be used for monitoring the box-type substation in real time from multiple angles and in multiple directions in a detection mode combining intelligent dehumidification, partial discharge monitoring and infrared temperature measurement, so that the safe operation of the box-type substation is ensured. When the detection data of one of all the devices is abnormal, the sensors can be subjected to multiple times of cyclic detection simultaneously to judge whether the box-type substation is in a normal operation state condition.
While the preferred embodiments of the present invention have been illustrated and described in detail, it should be understood that modifications and variations can be effected by one skilled in the art in light of the above teachings without undue experimentation. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. The intelligent monitoring system for the comprehensive operation state of the box-type substation is characterized by comprising an intelligent dehumidifier (1), a multifunctional partial discharge sensor group (2), a high-frequency current sensor (3), a temperature measurement sensor group (4), a field data processing and displaying host (5) and data remote transmission equipment (6), wherein the intelligent dehumidifier (1), the multifunctional partial discharge sensor group (2) and the temperature measurement sensor group (4) are installed on the inner wall of each high-voltage cabinet of the box-type substation, the high-frequency current sensor (3) is installed on a high-voltage cable grounding wire (7), and the data processing and displaying host (5) and the data remote transmission equipment (6) are arranged on the inner wall of a high-voltage wire inlet chamber (8) inside the box-type substation; the intelligent dehumidifier (1), the multifunctional partial discharge sensor group (2), the high-frequency current sensor (3) and the temperature measurement sensor group (4) respectively transmit monitoring data to the data processing display host (5), and the data remote transmission equipment (6) receives the data transmitted by the data processing display host (5) and further transmits the data to the background control system for display.
2. The intelligent monitoring system for the comprehensive operation state of the box-type substation according to claim 1, wherein the intelligent dehumidifier (1) monitors the humidity in the box-type substation cabinet in real time, transmits the humidity data to the data processing and displaying host (5) for on-site display and early warning, and water drops collected by the intelligent dehumidifier (1) are discharged out of the cabinet body through a water pipe.
3. The intelligent monitoring system for the comprehensive operation state of the box-type substation according to claim 1, wherein the multifunctional partial discharge sensor group (2) comprises an ultrahigh frequency sensor and an ultrasonic sensor, and the ultrahigh frequency sensor and the ultrasonic sensor are packaged in the same shell.
4. The intelligent monitoring system for the comprehensive operation state of the box-type substation according to claim 1 or 3, wherein the multifunctional partial discharge sensor group (2) is installed in the box-type substation in a strong magnetic or strong glue mode and corresponds to A, B, C three-phase cables.
5. The intelligent monitoring system for the comprehensive operation state of the box-type substation according to claim 1, wherein the high-frequency current sensor (3) is installed on a high-voltage cable grounding wire (7) in a buckling mode, and a high-frequency current signal on the high-voltage cable grounding wire (7) is monitored in real time to judge the operation state of the cable.
6. The intelligent monitoring system for the comprehensive operation state of the box-type substation according to claim 1, wherein the temperature sensor group (4) comprises an infrared temperature sensor, a laser range finder and an air temperature sensor, the infrared temperature sensor provides temperature compensation through the distance measured by the laser range finder to improve the detection precision of the infrared temperature sensor, and the air temperature sensor detects real-time ambient temperature to adjust the early warning setting value of the infrared temperature sensor.
7. The intelligent monitoring system for the comprehensive operation state of the box-type substation according to claim 1 or 6, characterized in that the temperature measuring sensor group (4) is installed in the box-type substation in a manner of a rotating bracket so as to adjust different temperature measuring angles.
8. The intelligent monitoring system for the comprehensive operation state of the box-type substation according to claim 1, wherein the data processing and displaying host (5) displays data by using a liquid crystal display screen.
9. The intelligent monitoring system for the comprehensive operation state of the box-type substation according to claim 1, characterized in that the data remote transmission equipment (6) adopts a GPRS-DTU for data remote transmission and equipment positioning.
10. The intelligent monitoring system for the comprehensive operation state of the box-type substation according to claim 1, wherein the intelligent dehumidifier (1), the data processing and displaying host (5) and the data remote transmission equipment (6) are installed in a guide rail manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121948009.7U CN216159923U (en) | 2021-08-18 | 2021-08-18 | Intelligent monitoring system for comprehensive operation state of box-type substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202121948009.7U CN216159923U (en) | 2021-08-18 | 2021-08-18 | Intelligent monitoring system for comprehensive operation state of box-type substation |
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| CN216159923U true CN216159923U (en) | 2022-04-01 |
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| CN202121948009.7U Active CN216159923U (en) | 2021-08-18 | 2021-08-18 | Intelligent monitoring system for comprehensive operation state of box-type substation |
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- 2021-08-18 CN CN202121948009.7U patent/CN216159923U/en active Active
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