CN218727930U - Cable joint insulation breakdown fault monitoring device - Google Patents
Cable joint insulation breakdown fault monitoring device Download PDFInfo
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- CN218727930U CN218727930U CN202220773176.0U CN202220773176U CN218727930U CN 218727930 U CN218727930 U CN 218727930U CN 202220773176 U CN202220773176 U CN 202220773176U CN 218727930 U CN218727930 U CN 218727930U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The utility model relates to a cable joint insulation breakdown fault monitoring device, which comprises a near-electricity early warning module, a signal acquisition module, a power module and an alarm processing module; the signal acquisition module is in communication connection with the alarm processing module; the alarm processing module comprises a data processing unit, a first communication unit and a second communication unit; the signal acquisition module is connected with the data processing unit through the first communication unit; the data processing unit is switched from the dormant state to the working state to send detection information outwards at regular time, and then is switched back to the dormant state; the near-electricity early warning module is used for waking up the data processing unit and sending detection information; the power supply module is used for supplying power; combining an alarm processing module with a signal acquisition module and a near-electricity early warning module; the alarm processing module can be switched from the dormant state to the working state at regular time to send detection information to the outside and then switched back to the dormant state, so that low-power monitoring is achieved; and the alarm processing module is awakened through the near-electricity early warning module, so that response is rapidly detected and a fault point is accurately positioned.
Description
Technical Field
The utility model relates to an electrical equipment field especially relates to a cable joint insulation breakdown fault monitoring devices.
Background
The current mainstream power supply mode adopts cables of various types and specifications to realize power transmission; in the process of cable laying, due to the influence of factors such as installation process, laying environment, use condition and the like, the cable is accompanied with fault occurrence in the power transmission process; the failure reasons of the power cables in various regions of China are analyzed, so that the failure frequency of the joints of the cables is the highest; the cable joint is generally manufactured and installed on a manual site, and the contact failure rate and the insulation performance of a cable core of the cable joint are equal to those of the cable manufactured by a regional factory.
At present, the cable joint is monitored in real time through some alarm devices, so that the normal operation of power supply work is ensured. However, the alarm device needs to be continuously operated to achieve the monitoring purpose, so that no unified solution is provided for the problems of low power consumption operation, accurate and quick early warning of fault information and the like of the alarm device.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in overcoming the cable joint fault monitoring defect among the prior art to a cable joint insulation breakdown fault monitoring device is provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a cable joint insulation breakdown fault monitoring device comprising: the system comprises a near-electricity early warning module, a signal acquisition module, a power supply module and an alarm processing module;
the signal acquisition module is in communication connection with the alarm processing module;
the alarm processing module comprises a data processing unit, a first communication unit and a second communication unit; the signal acquisition module is connected with the data processing unit through the first communication unit and transmits detection information; the data processing unit is used for switching from the dormant state to the working state at regular time, sending detection information to the outside and then switching back to the dormant state;
the near-electricity early warning module is used for sensing an abnormal current or voltage signal of the cable joint and awakening the data processing unit; the data processing unit is also used for sending detection information to the outside after being awakened;
and the power supply module supplies power to the signal acquisition module, the alarm processing module and the near-electricity early warning module.
Preferably, the signal acquisition module is integrated with a combination of one or more of a sound light induction unit, an electromagnetic induction unit, a temperature induction unit, a smoke induction unit and a vibration unit.
Preferably, the signal acquisition module further comprises a photosensitive sensing unit.
Preferably, the signal acquisition module further comprises a water level sensing unit.
Preferably, the signal acquisition module further includes a partial discharge detection unit.
Preferably, the system further comprises a terminal processor, and the alarm processor sends detection information to the terminal processor through the second communication unit, wherein the detection information comprises fault position information and a detection result.
Preferably, the device further comprises a connecting piece; the connecting piece is fixed on the cable connector, and the signal acquisition module, the alarm processing module, the nearly electric alarm module, the power module are all fixed to be established on the connecting piece.
Preferably, the connecting piece is of a semi-arc structure.
Compared with the prior art, the beneficial effects of the utility model reside in that:
according to the cable joint insulation breakdown fault monitoring device provided by the technical scheme, the alarm processing module is combined with the signal acquisition module and the near-electricity early warning module for use; the alarm processing module is switched from the dormant state to the working state at regular time under normal working conditions and sends detection information to the outside, and the alarm processing module enters the dormant state again after the alarm processing module is sent to the outside, so that low-power consumption monitoring and early warning of a cable joint are achieved; the alarm processing module is awakened by sensing an abnormal current or voltage signal through the near-electricity early warning module, so that the aims of rapid detection, rapid response and accurate fault point positioning are fulfilled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is the utility model discloses an embodiment provides a cable joint insulation breakdown fault monitoring device schematic structure.
Fig. 2 is a control schematic diagram of the near-electricity early warning module.
Description of reference numerals:
1. a connecting member; 11. a signal acquisition module; 12. an alarm processing module; 13. a power supply module; 14. a water level sensing unit; 15. a photosensitive sensing unit; 16. a near-electricity early warning module; 161. a receiving antenna; 162. a signal amplification circuit; 163. a signal transmitting circuit; 2. a cable; 21. and (4) a cable joint.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
The embodiment of the utility model provides a cable joint insulation breakdown fault monitoring device, including nearly electric early warning module 16, signal acquisition module 11, power module 13 and alarm processing module 12; the near-electricity early warning module 16 is used for sensing an abnormal current or voltage signal at the cable joint 21; the signal acquisition module 11 is used for acquiring fault signals at the cable joint 21; the alarm processing module 12 is used for uploading the fault information to a terminal; the power supply module 13 is used to supply power to the respective modules.
Specifically, the signal acquisition module 11 is in communication connection with the alarm processing module 12, and is configured to acquire fault information of the cable connector 21 and transmit the acquired fault information to the alarm processing module 12; further, the alarm processing module 12 includes a data processing unit, a first communication unit and a second communication unit; the data processing unit is used for integrating and processing the detection information from the signal acquisition module 11 and the abnormal current or voltage signal sensed by the near-electricity early warning module 16; the first communication unit and the second communication unit are used for transmitting detection information; more specifically, the signal acquisition module 11 is connected with the data processing unit through a first communication unit, and transmits detection information of the signal acquisition module 11 at the joint of the cable 2 to the data processing unit through the first communication unit; it is noted that the data processing unit has two operating modes, namely an operating mode and a sleep mode; when the data processing unit needs to send detection information to the outside, the data processing unit is switched to a working state; switching back to the dormant state after the transmission is finished; in this embodiment, the data processing unit sends the detection information twice per day; the detection needs are determined, and the detection needs can be sent twice or more times every day; the working mode is switched from the working state to the dormant state, so that a good energy-saving effect is achieved; the energy loss caused by continuously keeping the working state in the normal working environment is avoided.
Specifically, the near-electricity early warning module 16 is configured to sense an abnormal current or voltage signal of the cable joint 21, and generate a pulse or high-level signal; when the near-electricity early warning module 16 senses an abnormality, it senses an abnormal current or voltage signal, and a generated pulse or high level signal through the receiving antenna 161, the signal amplifying circuit 162 amplifies the abnormal electrical signal, and finally the signal transmitting circuit 163 wakes up the data processing unit in the alarm processor 12; the awakened data processing unit enters a working state, receives the detection information from the signal acquisition module 11 and sends the detection information to the outside; therefore, the fault detection response is rapid, and the fault positioning is accurate and reliable.
In some embodiments, when the cable joint 21 fails, an insulation breakdown phenomenon occurs at the cable joint 21; furthermore, with the current tripping and power failure, the power failure tripping time is about 80ms, but the fault point is difficult to locate and detect under the condition of power failure; in contrast, the design scheme can immediately respond at the moment of power failure when a fault occurs by combining the near-electricity early warning module 16, control the response time to be about 500us, and immediately wake up the data processing unit, wherein the wake-up time is about 5 us; the awakened data processing unit activates other sensing modules and sends the received detection information to the outside, so that the fault positioning is accurate and reliable, and the problem that the troubleshooting difficulty is increased due to outage reasons is avoided.
Specifically, the power module 13 is connected to the near-electricity alarm module, the signal acquisition module 11 and the alarm processing module 12 and supplies power to the near-electricity alarm module, the signal acquisition module 11 and the alarm processing module 12.
Specifically, the signal acquisition module 11 is integrated with one or a combination of more of a sound light induction unit, an electromagnetic induction unit, a temperature induction unit, a smoke induction unit, and a vibration unit; the acousto-optic sensing unit is used for detecting whether a blasting phenomenon occurs at the cable joint 21; the electromagnetic induction unit is used for detecting whether abnormal current exists at the position of the cable joint 21 or not in a damaged state; the temperature sensing unit is used for monitoring the temperature change at the cable joint 21 and preventing the temperature from rising due to short circuit and the like to influence the safe power utilization; the smoke sensing unit is used for detecting whether smoke is generated at the cable joint 21 or not and early warning a fire; the vibration unit is used for detecting the vibration phenomenon generated by abnormal current or voltage breakdown at the cable joint 21; furthermore, when the cable joint 21 is subjected to insulation breakdown, the signal acquisition module 11 transmits a fault phenomenon and a fault signal to the alarm processing module 12 in real time, so that a worker can adjust and respond in time.
In some embodiments, the signal acquisition module 11 is also used in conjunction with a photosensitive sensing unit 15; the photosensitive sensing unit 15 is used for sensing an external light source; the cable 2 buried underground can be stolen by a thief; when the underground cable joint 21 is exposed to a light source, the photosensitive sensing unit 15 transmits signals to the alarm processing module 12 through the signal acquisition module 11; the underground cable 2 can be effectively prevented from being stolen, and the anti-theft warning function on the underground cable 2 is achieved.
In other embodiments, the signal acquisition module 11 is further provided with a water level sensing unit 14; the water level sensing unit 14 is used for early warning the underground water level; the cable joint 21 buried underground usually fails due to water inflow of a laid pipeline, thereby affecting safe power utilization; when the underground water level changes and approaches or exceeds the early warning value of the water level sensing unit 14, the water level sensing unit 14 transmits a signal to the alarm processing module 12 through the signal acquisition module 11; thereby ensuring the normal transmission of the electric power at the underground cable joint 21 and ensuring the safe power utilization.
Specifically, the signal acquisition module 11 further includes a partial discharge detection unit, and the partial discharge detection unit is configured to detect a fault condition at the cable joint 21; when the near-electricity early warning module 16 senses an abnormal current or voltage signal at the cable joint 21 and determines that a fault occurs, the partial discharge detection unit starts partial discharge detection, and a detected result is transmitted to the alarm processing module 12 through the signal acquisition module 11 and is processed by the alarm processing module 12 in the next step.
Specifically, the insulation breakdown fault monitoring device further comprises a terminal processor; the alarm processing module 12 is in signal connection with the terminal processor through a second communication unit and sends detection information to the terminal processor; including fault location information and detection results.
Specifically, the insulation breakdown fault monitoring device further comprises a connecting piece 1; the connecting piece 1 is fixed on the cable joint 21; the signal acquisition module 11, the alarm processing module 12, the near-electricity alarm module and the power supply module 13 are all fixedly arranged on the connecting piece 1; the connecting piece 1 is of a semi-arc structure, so that the arc surface of the connecting piece 1 can be attached to the surface of the cable joint 21 and is used for being fixed with the surface of the cable joint 21, and the installation and the disassembly are convenient; in some embodiments, the connection stability is also improved by glue filling and the like.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention.
Claims (8)
1. A cable joint insulation breakdown fault monitoring device, comprising: the system comprises a near-electricity early warning module, a signal acquisition module, a power supply module and an alarm processing module;
the signal acquisition module is in communication connection with the alarm processing module;
the alarm processing module comprises a data processing unit, a first communication unit and a second communication unit; the signal acquisition module is connected with the data processing unit through the first communication unit and transmits detection information; the data processing unit is used for switching from the dormant state to the working state at regular time, sending detection information to the outside and then switching back to the dormant state;
the near-electricity early warning module is used for sensing an abnormal current or voltage signal of the cable joint and awakening the data processing unit; the data processing unit is also used for sending detection information to the outside after being awakened;
and the power supply module supplies power to the signal acquisition module, the alarm processing module and the near-electricity early warning module.
2. The cable joint insulation breakdown fault monitoring device of claim 1, wherein the signal acquisition module is integrated with a combination of one or more of a sound light sensing unit, an electromagnetic sensing unit, a temperature sensing unit, a smoke sensing unit, and a vibration unit.
3. The cable joint insulation breakdown fault monitoring device of claim 2, wherein the signal acquisition module further comprises a photosensitive sensing unit.
4. The cable joint insulation breakdown fault monitoring device of claim 2, wherein the signal acquisition module further comprises a water level sensing unit.
5. The device for monitoring the insulation breakdown fault of the cable joint according to claim 2, wherein the signal acquisition module further comprises a partial discharge detection unit.
6. The device for monitoring the insulation breakdown fault of the cable joint according to claim 1, further comprising a terminal processor, wherein the alarm processing module sends detection information to the terminal processor through the second communication unit, and the detection information comprises fault position information and a detection result.
7. A cable splice insulation breakdown fault monitoring device according to any one of claims 1 to 6 further including a connector; the connecting piece is fixed on the cable connector, and the signal acquisition module, the alarm processing module, the nearly electric early warning module, the power module is all fixed to be established on the connecting piece.
8. A cable splice insulation breakdown fault monitoring device according to claim 7 wherein said connector is of semi-arcuate configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220773176.0U CN218727930U (en) | 2022-03-31 | 2022-03-31 | Cable joint insulation breakdown fault monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220773176.0U CN218727930U (en) | 2022-03-31 | 2022-03-31 | Cable joint insulation breakdown fault monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218727930U true CN218727930U (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220773176.0U Active CN218727930U (en) | 2022-03-31 | 2022-03-31 | Cable joint insulation breakdown fault monitoring device |
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| Country | Link |
|---|---|
| CN (1) | CN218727930U (en) |
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2022
- 2022-03-31 CN CN202220773176.0U patent/CN218727930U/en active Active
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