CN212989532U - Overhead line distribution network fault indicator - Google Patents
Overhead line distribution network fault indicator Download PDFInfo
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- CN212989532U CN212989532U CN202020781166.2U CN202020781166U CN212989532U CN 212989532 U CN212989532 U CN 212989532U CN 202020781166 U CN202020781166 U CN 202020781166U CN 212989532 U CN212989532 U CN 212989532U
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Abstract
The utility model relates to an overhead line distribution network fault indicator belongs to distribution network overhead line fault monitoring technical field. The indicator comprises a power supply unit, a monitoring unit, an interface unit, a main controller and a data memory; the power supply unit comprises an energy taking module, an energy storage module and a power supply module; the monitoring unit comprises a temperature measuring module, a current measuring module, a voltage measuring module and a partial discharge detecting module; the interface unit comprises an acousto-optic indication module, a GPS/BD module and a wireless communication module; the energy taking module and the energy storage module are respectively connected with the power supply module; the power module, the temperature measuring module, the current measuring module, the voltage measuring module, the partial discharge detecting module, the acousto-optic indicating module, the GPS/BD module, the wireless communication module and the data memory are respectively connected with the main controller. The utility model discloses can realize that all fault indicator samplings of whole net are synchronous, adopt the multiple energy mode of getting, fault analysis function is more powerful, and equipment is more stable, easily popularizes and applies.
Description
Technical Field
The utility model belongs to the technical field of distribution network overhead line fault monitoring, concretely relates to overhead line joins in marriage net fault indicator, especially relates to a be used for joining in marriage net overhead line partial discharge monitoring and short circuit fault indicating device.
Background
At present, urban power supply mainly adopts cables to transmit electric energy, but overhead lines are still widely used in vast suburbs and rural areas. The overhead line adopting the bare conductor for electric energy transmission is easy to generate short circuit and faults caused by insulation distance in the actual operation process, and when the faults occur, a power department needs to send a large number of routing inspection personnel to search fault points, so that the repair efficiency is low. At present, a distribution network overhead line widely adopts a fault indicator to reduce line inspection difficulty and accelerate fault finding time. The fault indicator who uses at present direct mount is in the distribution wire, but measuring lines's electric current, contact point temperature, when monitoring the electric current and surpassing preset value, turn over the tablet daytime, flash of light night indicates, and partial fault indicator can also send fault information to the control backstage through communication network. However, the fault indicator is still a monitoring device after a fault, and cannot detect and early warn the fault in advance, and the monitored current information has no synchronism, which is not beneficial to fault analysis. Therefore, how to overcome the defects of the prior art is a problem which needs to be solved urgently in the technical field of power distribution network overhead line fault monitoring at present.
SUMMERY OF THE UTILITY MODEL
The utility model discloses utilize fault indicator to install in the position advantage of overhead line wire and the functional advantage of direct measurement distribution current, provide one kind and join in marriage net fault indicator based on the overhead line of ultrasonic wave partial discharge monitoring principle and the synchronous time setting technique of GPS BD, solve and join in marriage net overhead line and monitor the problem of early warning and the accurate analysis behind the trouble before the trouble.
In order to achieve the above object, the utility model adopts the following technical scheme:
an overhead line distribution network fault indicator comprises a power supply unit, a monitoring unit, an interface unit, a main controller and a data memory;
the power supply unit comprises an energy taking module, an energy storage module and a power supply module;
the monitoring unit comprises a temperature measuring module, a current measuring module, a voltage measuring module and a partial discharge detecting module;
the interface unit comprises an acousto-optic indication module, a GPS/BD module and a wireless communication module;
the energy taking module and the energy storage module are respectively connected with the power supply module;
the power module, the temperature measuring module, the current measuring module, the voltage measuring module, the partial discharge detecting module, the acousto-optic indicating module, the GPS/BD module, the wireless communication module and the data memory are respectively connected with the main controller.
Further, preferably, the energy obtaining mode adopted by the energy obtaining module comprises one or more of coil energy obtaining, electric field energy obtaining, photovoltaic energy obtaining and battery energy obtaining.
Further, preferably, the energy storage module stores energy by using a super capacitor.
Further, it is preferable to include a housing through which the overhead wire conductor passes; the shell comprises an upper metal shell and a bottom plastic hollow shell connected with the upper metal shell;
the upper side outside the overhead line conductor is surrounded with a first stage of field intensity capacitor, and the first stage of the field intensity capacitor is contacted with the overhead line conductor;
a layer of insulator is arranged outside the first level of the field strong capacitor and surrounds the overhead line conductor, and a layer of current coil surrounds the insulator;
another layer of insulator is arranged between the outside of the current coil and the upper metal shell;
a solar photovoltaic panel is arranged outside the bottom plastic hollow shell;
a battery, a super capacitor and a main control module are arranged in the bottom plastic hollow shell;
the main control module comprises a monitoring unit, an interface unit, a main controller, a data memory and a power supply module;
the power module is respectively connected with the upper metal shell, the first stage of the field intensity capacitor, the current coil, the solar photovoltaic panel, the battery and the super capacitor.
Further, it is preferable that the first stage of the field strength capacitor is made of a metal material.
Further, it is preferred that the outer bottom of bottom plastic hollow shell is equipped with the solar photovoltaic board, and the fault indicator can rotate around the wire during installation, and the solar photovoltaic board is towards the strongest direction of the average sunshine of selection.
Further, preferably, the lower end of the upper metal shell is provided with a mounting lug, and the bottom plastic hollow shell passes through the mounting lug through a bolt to be in threaded connection with a nut.
Compared with the prior art, the utility model, its beneficial effect does:
1. the utility model adds the functions of partial discharge, temperature monitoring, positioning, time setting and multi-hand energy taking on the basis of the prior fault indicator, has all the functions of the prior equipment and improves the utilization efficiency;
2. the utility model obtains energy by various means, and the equipment works more stably and reliably;
3. the utility model has the function of whole network synchronization, facilitates fault analysis and provides basic data for further realizing whole network tide analysis;
4. the utility model has the positioning function, and can realize accurate geographical positioning;
5. the utility model has the real-time partial discharge on-line detection function, reduces the workload of the prior periodic partial discharge detection mode, and simultaneously avoids the time blank point of the prior proposal;
6. the utility model discloses the process analysis function behind fault indication and the accident when the insulating early warning of monitoring, the accident are put in the office to the overload early warning that the temperature exceeds standard, indicator can be realized, easily popularization and application.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, 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 exercise.
Fig. 1 is a connection diagram of modules obtained by the overhead line distribution network fault indicator of the utility model;
FIG. 2 is a block diagram of a fault indicator power module;
FIG. 3 is a view showing a fault indicator installation structure;
FIG. 4 is a schematic view of a fault indicator installation;
wherein, 1, an overhead line conductor; 2. an upper metal housing; 3. one stage of field strength capacitance; 4. a current coil; 5. an insulator; 6. a bottom plastic hollow shell; 7. a solar photovoltaic panel; 8. a battery; 9. a super capacitor; 10. a main control module; 11. mounting lugs; 12. a bolt; 13. a nut; 100. a power supply unit; 101. an energy obtaining module; 102. an energy storage module; 103. a power supply module; 200. a monitoring unit; 201. a temperature measurement module; 202. a current measurement module; 203. a voltage measurement module; 204. a partial discharge detection module; 300. an interface unit; 301. an acousto-optic indication module; 302. a GPS/BD module; 303. a wireless communication module; 400. a main controller; 500. and a data memory.
Detailed Description
The present invention will be described in further detail with reference to examples.
It will be appreciated by those skilled in the art that the following examples are illustrative of the invention only and should not be taken as limiting the scope of the invention. The specific techniques, connections, conditions, or the like, which are not specified in the examples, are performed according to the techniques, connections, conditions, or the like described in the literature in the art or according to the product specification. The materials, instruments or equipment are not indicated by manufacturers, and all the materials, instruments or equipment are conventional products which can be obtained by purchasing.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, "connected" as used herein may include wirelessly connected.
In the description of the present invention, "a plurality" means two or more unless otherwise specified. The terms "inner," "upper," "lower," and the like, refer to an orientation or a state relationship based on that shown in the drawings, which is for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "provided" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention is understood according to the specific situation.
It can be understood by those skilled in the art that the related modules and the functions implemented by the related modules in the present invention are implemented by loading conventional computer software programs or related protocols on the modified hardware and the devices, devices or systems formed by the hardware, devices or systems, and are not modified computer software programs or related protocols in the prior art. For example, the improved computer hardware system can still realize the specific functions of the hardware system by loading the existing software operating system. Therefore, it can be understood that the innovation of the present invention lies in the improvement of the hardware module and the connection combination relationship thereof in the prior art, rather than the improvement of the software or protocol installed in the hardware module for realizing the related functions.
As will be understood by those skilled in the art, the relevant modules mentioned in the present disclosure are hardware devices for performing one or more of the operations, methods, steps, measures, solutions described in the present application. The hardware devices may be specially designed and constructed for the required purposes, or they may be of the kind well known in the general purpose computers or other hardware devices known. The general purpose computer has a program stored therein that is selectively activated or reconfigured.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As shown in fig. 1 to 4, an overhead line distribution network fault indicator includes a power supply unit 100, a monitoring unit 200, an interface unit 300, a main controller 400 and a data storage 500;
the power supply unit 100 comprises an energy taking module 101, an energy storage module 102 and a power supply module 103;
the monitoring unit 200 comprises a temperature measuring module 201, a current measuring module 202, a voltage measuring module 203 and a partial discharge detecting module 204;
the interface unit 300 comprises an acousto-optic indication module 301, a GPS/BD module 302 and a wireless communication module 303;
the energy taking module 101 and the energy storage module 102 are respectively connected with the power supply module 103;
the power module 103, the temperature measuring module 201, the current measuring module 202, the voltage measuring module 203, the partial discharge detecting module 204, the sound and light indicating module 301, the GPS/BD module 302, the wireless communication module 303, and the data storage 500 are respectively connected to the main controller 400.
Preferably, the energy obtaining mode adopted by the energy obtaining module 101 includes one or more of coil energy obtaining, electric field energy obtaining, photovoltaic energy obtaining and battery energy obtaining.
Preferably, the energy storage module 102 stores energy by using a super capacitor.
Preferably, the overhead line distribution network fault indicator comprises a shell, and an overhead line conductor 1 penetrates through the shell; the shell comprises an upper metal shell 2 and a bottom plastic hollow shell 6 connected with the upper metal shell 2;
the upper side outside the overhead line conductor 1 is surrounded with a first stage 3 of the field intensity capacitor, and the first stage 3 of the field intensity capacitor is contacted with the overhead line conductor 1;
a layer of insulator 5 is arranged around the overhead line conductor 1 and outside the first stage 3 of the field strong capacitance, and a layer of current coil 4 is wound outside the layer of insulator 5;
another layer of insulator 5 is arranged between the outside of the current coil 4 and the upper metal shell 2;
a solar photovoltaic panel 7 is arranged outside the bottom plastic hollow shell 6;
a battery 8, a super capacitor 9 and a main control module 10 are arranged in the bottom plastic hollow shell 6;
the main control module 10 includes a monitoring unit 200, an interface unit 300, a main controller 400, a data memory 500 and a power module 103;
the power module 103 is respectively connected with two stages of field intensity capacitors (namely the upper metal shell 2 and the first stage 3 of the field intensity capacitors), the current coil 4, the solar photovoltaic panel 7, the battery 8 and the super capacitor 9.
Preferably, the first stage 3 of the field strength capacitor is made of metal.
Preferably, the outer bottom of the bottom plastic hollow shell 6 is provided with a solar photovoltaic panel 7, the fault indicator can rotate around the lead 1 during installation, and the solar photovoltaic panel faces to the direction of selecting the average strongest sunlight.
Preferably, the lower end of the upper metal shell 2 is provided with a mounting lug 11, and the bottom plastic hollow shell 6 is in threaded connection with a nut 13 through the mounting lug 11 by a bolt 12.
The power supply unit 100 of the utility model is used for collecting and storing energy and providing power for the fault indicator of the utility model;
the monitoring unit 200 is used for acquiring a target signal and converting the target signal into a range acquired by the main controller 400;
the interface unit 300 is used for receiving GPS/BD time setting signals, transmitting the calculation result of the main controller to a remote system and indicating locally;
the main controller 400 is used for marking a time mark on the acquired target signal, comparing the signal, giving a warning result, and remotely transmitting the monitored data and the comparison result through the wireless communication module;
the data storage 500 is used for storing data and results locally, so that remote calling is facilitated;
the power supply unit 100 comprises an energy taking module 101, an energy storage module 102 and a power supply module 103;
the energy-taking module 101 is used for acquiring energy from line current, an electric field, a battery and the environment (sunlight) in real time; when the acquired energy is larger than the real-time consumption, the energy storage module 102 is used for storing redundant energy, and when the acquired energy is insufficient, the energy storage module 102 is responsible for complementing; the power module 103 is used for converting the energy acquired in real time into a power supply suitable for other modules, and is also responsible for charging and discharging the energy storage module.
Preferably, the energy obtaining mode adopted by the energy obtaining module 101 is coil energy obtaining, electric field energy obtaining, photovoltaic energy obtaining and battery energy obtaining. The energy storage module 102 stores energy by using a super capacitor.
As shown in fig. 3, the current coil 4 is an open-end through type, and the overhead wire 1 induces current to generate electric energy after the current flows through the current coil 4; the first stage 3 of the field intensity capacitor is connected with a lead, and the other pole (namely the upper metal shell 2) is suspended to obtain space field intensity energy; the solar cell panel 7 can absorb light energy and convert the light energy into electric energy; the super capacitor 9 is used for storing redundant electric energy when the energy is surplus, and discharges electricity to support the work of the indicator of the utility model when the energy is insufficient; the battery 8 is a disposable energy source, and provides energy when the indicator works when other energy is not enough to support the indicator.
The monitoring unit 200 comprises a temperature measuring module 201, a current measuring module 202, a voltage measuring module 203 and a partial discharge detecting module 204; the temperature measuring module 201 is used for measuring the temperature of the overhead line conductor 1, the current measuring module 202 is used for detecting the current flowing through the overhead line conductor 1, the voltage measuring module 203 detects the voltage on the conductor 1 in a mode of measuring the electric field intensity, and the partial discharge detecting module 204 monitors the discharge sound of the conductor 1 during insulation damage through an ultrasonic detection mode.
The interface unit 300 comprises an acousto-optic indication module 301, a GPS/BD module 302 and a wireless communication module 303; the acousto-optic indicating module 301 is used for indicating on-site alarm, and after the main controller detects a fault (namely generates an alarm result), the acousto-optic indicating module 301 alarms by turning over the cards in the daytime and flashing the lights at night; the GPS/BD module 302 is used for receiving time service and positioning signals of satellites, and the main controller 400 performs time synchronization and position confirmation according to the received signals; the wireless communication module 303 uses internet of things communication or cellular network communication, such as NB-IOT or 4G communication, to connect the fault indicator with the background system.
Specifically, the main controller 400 is configured to obtain time and position information from the GPS/BD module 302, obtain monitored signal information from the monitoring unit 200, compare the time and position information to obtain a warning result, warn through the audible and visual indication module 301, remotely transmit the collected data and the comparison result through the wireless communication module 303, and store the collected data and the comparison result through the data storage 500.
The main controller can be realized by a single chip microcomputer, a DSP or a programmable logic device.
The upper metal shell 2 of the utility model is simultaneously used as the other stage of the field intensity energy-taking capacitor; the current coil 4 of the utility model is of an open type and is of an annular shape after being installed;
preferably, the upper metal shell 2 is an arc-shaped shell; the upper metal shell 2 and the bottom plastic hollow shell 6 are fastened by bolts 12 through the mounting ears 11 and threaded with nuts 13.
The overhead line conductor 1 passes through the space between the upper metal shell 2 and the bottom plastic hollow shell 6. The solar photovoltaic panel 7 is required to face the sun direction as much as possible during installation so as to enhance the photovoltaic energy-taking effect.
The utility model adds GPS/BD communication function on the basis of the existing fault indicator, realizes the sampling synchronization of all fault indicators of the whole network, and makes the fault analysis function more powerful; the utility model provides a fault indicator partial discharge detection function, through monitoring the ultrasonic wave on the wire, can detect the wire condition of discharging, realize the insulating trouble early warning; the utility model provides a fault indicator has adopted multiple mode in the aspect of getting the energy, can realize that current coil gets the energy, voltage field intensity gets the energy, the photovoltaic gets the energy, and the battery gets the energy, adopts super capacitor to carry out the energy storage simultaneously, makes the utility model discloses the indicator is more stable, easily popularizes and applies.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The overhead line distribution network fault indicator is characterized by comprising a power supply unit (100), a monitoring unit (200), an interface unit (300), a main controller (400) and a data memory (500);
the power supply unit (100) comprises an energy taking module (101), an energy storage module (102) and a power supply module (103);
the monitoring unit (200) comprises a temperature measuring module (201), a current measuring module (202), a voltage measuring module (203) and a partial discharge detection module (204);
the interface unit (300) comprises an acousto-optic indication module (301), a GPS/BD module (302) and a wireless communication module (303);
the energy taking module (101) and the energy storage module (102) are respectively connected with the power supply module (103);
the power module (103), the temperature measuring module (201), the current measuring module (202), the voltage measuring module (203), the partial discharge detecting module (204), the acousto-optic indicating module (301), the GPS/BD module (302), the wireless communication module (303) and the data memory (500) are respectively connected with the main controller (400).
2. The overhead line distribution network fault indicator of claim 1, wherein the energy obtaining mode adopted by the energy obtaining module (101) comprises one or more of coil energy obtaining, electric field energy obtaining, photovoltaic energy obtaining and battery energy obtaining.
3. The overhead line distribution network fault indicator of claim 1, wherein the energy storage module (102) stores energy using a super capacitor.
4. The overhead distribution network fault indicator of claim 1, comprising a housing through which the overhead conductor (1) passes; the shell comprises an upper metal shell (2) and a bottom plastic hollow shell (6) connected with the upper metal shell (2);
one pole (3) of the field intensity capacitor is encircled at the outer upper side of the overhead line lead (1), and the one pole (3) of the field intensity capacitor is contacted with the overhead line lead (1);
the current transformer is characterized in that the current transformer is wound around an overhead line lead (1), a layer of insulator (5) is arranged outside one pole (3) of the field intensity capacitor, and a layer of current coil (4) is wound outside the layer of insulator (5);
another layer of insulator (5) is arranged between the outside of the current coil (4) and the upper metal shell (2);
a solar photovoltaic panel (7) is arranged outside the bottom plastic hollow shell (6);
a battery (8), a super capacitor (9) and a main control module (10) are arranged in the bottom plastic hollow shell (6);
the main control module (10) comprises a monitoring unit (200), an interface unit (300), a main controller (400), a data memory (500) and a power supply module (103);
the power module (103) is respectively connected with the upper metal shell (2), one pole (3) of the field intensity capacitor, the current coil (4), the solar photovoltaic panel (7), the battery (8) and the super capacitor (9).
5. The overhead line distribution network fault indicator of claim 4, wherein one pole (3) of the field strength capacitor is made of metal.
6. The overhead line distribution network fault indicator of claim 4, wherein the outer bottom of the bottom plastic hollow shell (6) is provided with a solar photovoltaic panel (7).
7. The overhead line distribution network fault indicator of claim 4, characterized in that the lower end of the upper metal shell (2) is provided with a mounting lug (11), and the bottom plastic hollow shell (6) is in threaded connection with a nut (13) through the mounting lug (11) by a bolt (12).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020781166.2U CN212989532U (en) | 2020-05-12 | 2020-05-12 | Overhead line distribution network fault indicator |
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| CN202020781166.2U CN212989532U (en) | 2020-05-12 | 2020-05-12 | Overhead line distribution network fault indicator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113782321A (en) * | 2021-09-26 | 2021-12-10 | 云南电网有限责任公司红河供电局 | Method and device for restraining forward and reverse transformation overvoltage of distribution transformer |
| CN116599238A (en) * | 2023-07-18 | 2023-08-15 | 青岛鼎信通讯股份有限公司 | Modular fault indicator energy taking module and using method thereof |
-
2020
- 2020-05-12 CN CN202020781166.2U patent/CN212989532U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113782321A (en) * | 2021-09-26 | 2021-12-10 | 云南电网有限责任公司红河供电局 | Method and device for restraining forward and reverse transformation overvoltage of distribution transformer |
| CN116599238A (en) * | 2023-07-18 | 2023-08-15 | 青岛鼎信通讯股份有限公司 | Modular fault indicator energy taking module and using method thereof |
| CN116599238B (en) * | 2023-07-18 | 2023-10-31 | 青岛鼎信通讯股份有限公司 | Modular fault indicator energy taking module and using method thereof |
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