CN219715703U - High-voltage cable grounding current on-line monitoring device based on load dynamic management - Google Patents
High-voltage cable grounding current on-line monitoring device based on load dynamic management Download PDFInfo
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- CN219715703U CN219715703U CN202320722519.5U CN202320722519U CN219715703U CN 219715703 U CN219715703 U CN 219715703U CN 202320722519 U CN202320722519 U CN 202320722519U CN 219715703 U CN219715703 U CN 219715703U
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 21
- 238000012545 processing Methods 0.000 claims description 26
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- 238000005259 measurement Methods 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 8
- 230000005856 abnormality Effects 0.000 claims description 6
- 230000010365 information processing Effects 0.000 claims description 3
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- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 description 5
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- 238000013480 data collection Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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Abstract
The utility model discloses a high-voltage cable grounding current on-line monitoring device based on load dynamic management, which belongs to the technical field of cable monitoring and particularly relates to a high-voltage cable grounding current on-line monitoring device based on load dynamic management.
Description
Technical Field
The utility model relates to the technical field of cable monitoring, in particular to a high-voltage cable grounding current on-line monitoring device based on load dynamic management.
Background
The task of on-line monitoring and diagnosis of power cables is to understand the insulation state of the cable, including the adoption of various detection, measurement, monitoring, analysis and discrimination methods. And (3) in combination with the history and the current situation of the system, the cable insulation state is evaluated by considering environmental factors, and whether the cable insulation state is in a normal or abnormal state is judged. And the state is displayed and recorded, and an alarm is given to the abnormal state so that operators can process the abnormal state in time. And simultaneously, information and basic data are provided for insulation assessment, reasonable use and safe operation of the equipment.
With the high-speed development of power grid construction, the power cable is used more and more widely, and the requirements for performance monitoring and historical data collection of new cables are more and more increased. Meanwhile, the cable laid in early stage is continued to the normal service life, and the insulation problem of the cable is increased increasingly, so that the high-voltage cable grounding current on-line monitoring device based on load dynamic management is required to be provided for monitoring the cable performance of the power system in real time.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.
Therefore, the utility model aims to provide the high-voltage cable grounding current on-line monitoring device based on load dynamic management, which is characterized in that the data acquisition unit is used for acquiring and measuring the grounding wire current and the main cable current effective value in real time, the data transmission unit is used for transmitting the acquired data information to a computer background service program at a certain time interval, a remote terminal is convenient to establish a historical data file, the data are drawn into curves for showing, data resources are provided for system evaluation of a power grid transmission line by power system staff, and a cable operation maintainer can know the long-term operation state of the whole cable according to information provided by the curves.
In order to solve the technical problems, according to one aspect of the present utility model, the following technical solutions are provided:
a high-voltage cable grounding current on-line monitoring device based on load dynamic management comprises:
the central processing unit is used for executing an operation core and a control core which are used as monitoring devices and is a final execution unit for information processing and program running, and the central processing unit is used for receiving and processing each data information acquired by the data acquisition unit;
the data acquisition unit is connected with the central processing unit and is used for executing the acquisition of a current transformer signal, a main cable current signal, a ground wire current signal, a cable high-frequency partial discharge signal, a cable joint and a skin temperature vibration signal and transmitting acquired data information to the central processing unit in real time;
and the data transmission unit is connected with the central processing unit and the data acquisition unit and is used for executing the data transmission channel.
As a preferable scheme of the high-voltage cable grounding current on-line monitoring device based on load dynamic management, the utility model comprises the following steps: the data acquisition unit comprises an induction power-taking current transformer, a main cable current measurement transformer, a grounding wire current measurement transformer, an HFCT sensor and a temperature vibration sensor;
the induction electricity-taking current transformer is used for collecting energy on a main cable under the condition that a convenient power supply cannot be provided on site, and providing current required by operation for a collecting unit:
the main cable current measurement transformer is used for performing acquisition of main cable current signals:
the ground wire current measurement transformer is used for performing acquisition of ground wire current signals:
the HFCT sensor is used for executing acquisition of cable high-frequency partial discharge signals;
and the temperature vibration sensor is used for collecting the cable joint and the skin temperature vibration signals.
As a preferable scheme of the high-voltage cable grounding current on-line monitoring device based on load dynamic management, the utility model comprises the following steps: the data transmission unit comprises a wireless transmission unit and a communication unit;
the wireless transmission unit is used for performing connection of the induction power-taking current transformer, the main cable current measurement transformer, the grounding wire current measurement transformer, the HFCT sensor, the temperature vibration sensor and the central processing unit;
and the communication unit is used for establishing a communication channel between the background and the data acquisition unit through the network of the operator and transmitting the data signals processed by the central processing unit to the remote terminal at certain time intervals.
As a preferable scheme of the high-voltage cable grounding current on-line monitoring device based on load dynamic management, the utility model comprises the following steps: the central processing unit also comprises an alarm unit, wherein the alarm unit is an audible and visual alarm and is used for providing cable current abnormality alarm and equipment state abnormality alarm.
As a preferable scheme of the high-voltage cable grounding current on-line monitoring device based on load dynamic management, the utility model comprises the following steps: the remote terminal comprises a handheld tablet or computer end, and establishes a historical data file after collecting data, and the data is drawn into various curves.
Compared with the prior art: the data acquisition unit is used for acquiring and measuring the effective values of the grounding wire current and the main cable current in real time, the data transmission unit is used for transmitting the acquired data information to the computer background service program at a certain time interval, a remote terminal is convenient to establish a historical data file, the data are drawn into curve graphs for showing, system evaluation is carried out on the power transmission line of the power grid by power system staff to provide data resources, and cable operation maintenance staff can know the long-term operation state of the whole cable according to the information provided by the curves, monitor the power supply condition of equipment in real time, dynamically manage self energy consumption and improve long-term stable operation of the equipment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following detailed description of the embodiments of the present utility model will be given with reference to the accompanying drawings, which are to be understood as merely some embodiments of the present utility model, and from which other drawings can be obtained by those skilled in the art without inventive faculty. Wherein:
FIG. 1 is a schematic diagram of the overall structural system of the present utility model.
In the figure: 100 central processing unit, 110 alarm unit, 200 data acquisition unit, 210 induction get electric current transformer, 220 main cable current measurement transformer, 230 earth wire current measurement transformer, 240HFCT sensor, 250 temperature vibration sensor, 300 data transmission unit, 310 wireless output unit, 320 communication unit.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
Next, the present utility model will be described in detail with reference to the drawings, wherein the sectional view of the device structure is not partially enlarged to general scale for the convenience of description, and the drawings are only examples, which should not limit the scope of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.
The utility model provides a high-voltage cable grounding current on-line monitoring device based on load dynamic management, please refer to fig. 1, which comprises a central processing unit 100, a data acquisition unit 200 and a data transmission unit 300;
with continued reference to fig. 1, the central processing unit 100 is used for executing an operation core and a control core as monitoring devices, and is a final execution unit for information processing and program running, the receiving data acquisition unit 200 acquires and processes each data information, the central processing unit 100 further includes an alarm unit 110, and the alarm unit 110 is an audible and visual alarm for executing and providing a cable current abnormality alarm and an equipment state abnormality alarm;
the data acquisition unit 200 is connected with the central processing unit 100, and is used for performing acquisition of a current transformer signal, a main cable current signal, a ground wire current signal, a cable high-frequency partial discharge signal, a cable joint and a skin temperature vibration signal, and transmitting acquired data information to the central processing unit 100 in real time;
the data acquisition unit 200 includes an induction power taking current transformer 210, a main cable current measurement transformer 220, a ground wire current measurement transformer 230, an HFCT sensor 240, and a temperature vibration sensor 250;
the inductive power-taking current transformer 210 is configured to collect energy on the main cable and provide current required for operation for the collection unit under the condition that a convenient power supply cannot be provided on site:
a main cable current measurement transformer 220 for performing acquisition of main cable current signals:
the ground line current measurement transformer 230 is configured to perform collection of a ground line current signal:
an HFCT sensor 240 for performing acquisition of cable high frequency partial discharge signals;
a temperature vibration sensor 250 for performing acquisition of cable joint and skin temperature vibration signals;
the data transmission unit 300 is connected with the central processing unit 100 and the data acquisition unit 200, and is used for performing data transmission channel;
the data transmission unit 300 includes a wireless transmission unit 310 and a communication unit 320;
a wireless transmission unit 310 for performing connection of the inductive power take-off current transformer 210, the main cable current measurement transformer 220, the ground wire current measurement transformer 230, the HFCT sensor 240, the temperature vibration sensor 250, and the central processing unit 100;
the communication unit 320 is configured to establish a communication channel between the background and the data acquisition unit 200 through the network of the operator, and transmit the data signal processed by the central processing unit 100 to a remote terminal at a certain time interval, where the remote terminal includes a handheld tablet or a computer, and establish a history data file after collecting the data, and draw the data into various curves.
Working principle: when the system is used, the data acquisition unit 200 is used for acquiring and measuring the effective values of the ground wire current and the main cable current in real time, the data transmission unit 300 is used for transmitting the acquired data information to the computer background service program at certain time intervals, a remote terminal is convenient to establish a historical data file, the data are drawn into curves to be shown, system evaluation is carried out on a power grid transmission line by power system staff to provide data resources, and cable operation maintenance staff can know the long-term operation state of the whole cable according to the information provided by the curves, monitor the power supply condition of equipment in real time, dynamically manage the self energy consumption and improve the long-term stable operation of the equipment.
Although the utility model has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner as long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of omitting the descriptions and saving resources. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. High-voltage cable grounding current on-line monitoring device based on load dynamic management, characterized by comprising:
the central processing unit (100) is used for executing an operation core and a control core which are used as monitoring devices and is a final execution unit for information processing and program running, and the data acquisition unit (200) is used for acquiring and processing each data information;
the data acquisition unit (200) is connected with the central processing unit (100) and is used for executing the acquisition of a current transformer signal, a main cable current signal, a ground wire current signal, a cable high-frequency partial discharge signal and a cable joint and skin temperature vibration signal and transmitting acquired data information to the central processing unit (100) in real time;
and the data transmission unit (300) is connected with the central processing unit (100) and the data acquisition unit (200) and is used for executing the data transmission channel.
2. The high-voltage cable grounding current online monitoring device based on load dynamic management according to claim 1, wherein the data acquisition unit (200) comprises an induction power taking current transformer (210), a main cable current measurement transformer (220), a grounding wire current measurement transformer (230), an HFCT sensor (240) and a temperature vibration sensor (250);
the induction electricity-taking current transformer (210) is used for collecting energy on a main cable under the condition that convenient power supply cannot be provided on site, and providing current required by operation for a collecting unit:
a main cable current measurement transformer (220) for performing acquisition of main cable current signals:
a ground line current measurement transformer (230) for performing acquisition of ground line current signals:
an HFCT sensor (240) for performing acquisition of cable high frequency partial discharge signals;
a temperature vibration sensor (250) for performing acquisition of cable joint and skin temperature vibration signals.
3. The high-voltage cable grounding current on-line monitoring device based on load dynamic management according to claim 1, wherein the data transmission unit (300) comprises a wireless transmission unit (310) and a communication unit (320);
the wireless transmission unit (310) is used for performing connection of the induction power-taking current transformer (210), the main cable current measurement transformer (220), the ground wire current measurement transformer (230), the HFCT sensor (240), the temperature vibration sensor (250) and the central processing unit (100);
and the communication unit (320) is used for establishing a communication channel between the background and the data acquisition unit (200) through the network of an operator and transmitting the data signals processed by the central processing unit (100) to the remote terminal at certain time intervals.
4. The high-voltage cable grounding current on-line monitoring device based on load dynamic management according to claim 1, wherein the central processing unit (100) further comprises an alarm unit (110), and the alarm unit (110) is an audible and visual alarm for executing the cable current abnormality alarm and the equipment state abnormality alarm.
5. The high-voltage cable grounding current on-line monitoring device based on load dynamic management according to claim 3, wherein the remote terminal comprises a handheld tablet or a computer terminal, and a historical data file is built after data is collected, and the data is drawn into various curves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320722519.5U CN219715703U (en) | 2023-04-04 | 2023-04-04 | High-voltage cable grounding current on-line monitoring device based on load dynamic management |
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| CN202320722519.5U CN219715703U (en) | 2023-04-04 | 2023-04-04 | High-voltage cable grounding current on-line monitoring device based on load dynamic management |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117686783A (en) * | 2023-12-12 | 2024-03-12 | 武汉朗德电气有限公司 | High-voltage cable grounding current on-line monitoring device based on load dynamic management |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117686783A (en) * | 2023-12-12 | 2024-03-12 | 武汉朗德电气有限公司 | High-voltage cable grounding current on-line monitoring device based on load dynamic management |
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