CN214409179U - Overhead transmission line fault location on-line monitoring device - Google Patents
Overhead transmission line fault location on-line monitoring device Download PDFInfo
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- CN214409179U CN214409179U CN202022893715.8U CN202022893715U CN214409179U CN 214409179 U CN214409179 U CN 214409179U CN 202022893715 U CN202022893715 U CN 202022893715U CN 214409179 U CN214409179 U CN 214409179U
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Abstract
The application relates to the technical field of power failure detection, in particular to an overhead power transmission line fault positioning online monitoring device which comprises a current transformer, a controller, a supporting box body, a roller assembly and a driving assembly, wherein the current transformer is arranged on the supporting box body; the current transformer is fixedly arranged on the supporting box body and used for outputting a current signal; the roller assembly comprises two roller groups; the two roller groups are arranged on the supporting box body; the roller group comprises a first roller and a second roller; the driving assembly is connected with the first roller and used for driving the first roller to rotate to roll on the power transmission line; the controller is arranged on the supporting box body; the controller is respectively connected with the current transformer and the driving assembly; the controller controls the driving component to start and simultaneously receives the current signal. The application has the advantages that the use stability of the positioning monitoring device is improved, the detection accuracy of the positioning monitoring device is improved, and the working efficiency of the positioning monitoring device is improved.
Description
Technical Field
The application relates to the field of power failure detection technology, in particular to an overhead power transmission line fault positioning online monitoring device.
Background
The detection of faults of overhead transmission lines is particularly important, in recent years, a distribution line trial transmission positioning device based on a direct-current high-voltage special frequency signal technology appears in China, a signal output host is used for outputting direct-current high voltage, signals are loaded on a detected line, then special frequency alternating-current signals are superposed into the direct-current high-voltage signals in a coupling mode, then signal detection is carried out at a distance through a signal receiving device in a caliper mode, when the special frequency signals are detected, the situation that the line is normal from a signal output host end to a caliper position is indicated, when the amplitude, the phase or the frequency of the special frequency signals or the special frequency signals cannot be detected, the situation that faults exist between a last test position and a current test position is indicated, and troubleshooting needs to be carried out continuously until the fault positions are located.
In the related art, there have been traveling devices for fault location of distribution overhead lines. The device comprises a main box body, two rollers and a current transformer, wherein the two rollers and the current transformer are arranged at the top of the main box body; the current transformer is arranged at the top of the main box body and is positioned between the two idler wheels, when the circuit is detected, a wire on the circuit enters the current transformer and is clamped on the idler wheels, and therefore detection work is carried out.
With respect to the related art in the above, the inventors found that: when the traveling device for fault location is used, under the influence of strong wind weather, unstable use conditions of the device such as derailment of the device, no rotation of the driving roller and blocking of the device easily occur, and therefore the accuracy of fault location detection is influenced.
SUMMERY OF THE UTILITY MODEL
In order to improve the stability in use of device, this application provides an overhead type transmission line fault location on-line monitoring device.
The application provides a fault location on-line monitoring device of overhead transmission line adopts following technical scheme:
an overhead transmission line fault positioning online monitoring device comprises a current transformer, a controller, a supporting box body, a roller assembly and a driving assembly; the current transformer is fixedly arranged on the supporting box body and used for outputting a current signal; the roller assembly comprises two roller groups; the two roller groups are arranged on the supporting box body; the roller group comprises a first roller and a second roller; the first roller and the second roller are grooved wheels; the two first rollers are respectively positioned on two sides of the current transformer and above the power transmission line; the two second rollers are respectively positioned below the power transmission line, and the two first rollers and the two second rollers are arranged in a one-to-one correspondence manner; the driving assembly is connected with the first roller and used for driving the first roller to rotate to roll on the power transmission line; the controller is arranged on the supporting box body; the controller is respectively connected with the current transformer and the driving assembly; the controller controls the driving component to start and simultaneously receives the current signal.
By adopting the technical scheme, the first idler wheel is hung on the power transmission line, the second idler wheel is positioned under the power transmission line, the power transmission line is positioned in a space formed by the relative notches of the first idler wheel and the second idler wheel, the probability of derailment of the positioning monitoring device due to windy weather is reduced, the possibility of error occurrence of positioning detection data is reduced, the use stability of the positioning monitoring device is improved, the detection accuracy of the positioning monitoring device is improved, and the working efficiency of the positioning monitoring device is improved.
Optionally, the method further includes: the pressure sensor is arranged on the second roller and used for sensing the pressure of the second roller on the power transmission line and outputting a pressure detection signal; the bottom end of the telescopic assembly is fixedly arranged on the supporting box body, the telescopic end of the telescopic assembly is connected with the second roller, and the telescopic end can stretch along the direction perpendicular to the power transmission line.
By adopting the technical scheme, the pressure sensor can sense the pressure of the second roller wheel on the transmission line, namely the acting force of the transmission line on the second roller wheel, so as to monitor whether the transmission line is between the first roller wheel and the second roller wheel in real time; the second gyro wheel is connected to flexible subassembly's flexible end for the second gyro wheel can stretch out and draw back along the direction of perpendicular to transmission line, further makes transmission line between first gyro wheel and second gyro wheel, has reduced and has appeared the positioning monitoring device because of the heavy wind weather derail, thereby leads to the possibility that the error appears in the location detection data, has improved the stability in use of positioning monitoring device, has improved the detection accuracy of positioning monitoring device, has improved positioning monitoring device's work efficiency.
Optionally, the pressure sensor is disposed on an inner wall of the notch of the second roller and contacts with a surface of the power transmission line.
By adopting the technical scheme, in the working process of the device, the pressure sensor can monitor the acting force of the power transmission line on the second roller in real time, so that the power transmission line is positioned between the first roller and the second roller, and the use stability of the positioning monitoring device is improved.
Optionally, two pressure sensors are provided.
Through adopting above-mentioned technical scheme, two pressure sensor can reduce to appear because of one of them pressure sensor breaks down, lead to pressure detection to appear the possibility of error, have improved positioning monitoring device's stability in use.
Optionally, the controller is connected with the pressure sensor and the telescopic assembly; the controller receives the pressure detection signal and drives the telescopic end of the telescopic assembly to stretch up and down according to the pressure detection signal, so that the power transmission line is limited between the first roller and the second roller.
Through adopting above-mentioned technical scheme, the unsteady scope of pressure value is provided with in advance in the controller, and the pressure value that reflects when the pressure measurement signal that receives surpasss this scope, then the flexible subassembly of controller control is flexible from top to bottom to the distance between adjustment second gyro wheel and the transmission line, make transmission line between first gyro wheel and second gyro wheel, improved location monitoring devices's stability in use, thereby improved location monitoring devices's detection accuracy.
Optionally, the telescopic assembly comprises an electric push rod.
Through adopting above-mentioned technical scheme, electric putter has small, the price is low, convenient to use and the advantage of environmental protection, has improved positioning monitoring device's use convenience to a certain extent, has reduced manufacturing cost.
Optionally, the current transformer is a three-phase current transformer.
By adopting the technical scheme, the three-phase current transformer can detect and position fault information from three lines respectively, and the detection accuracy of the positioning and monitoring device is improved.
Optionally, the device further comprises a power supply assembly; the power supply assembly is connected with the driving assembly, the telescopic assembly and the controller.
By adopting the technical scheme, the power supply assembly can uniformly provide electric energy for the driving assembly, the telescopic assembly and the controller, the electric energy loss is reduced because only the power supply assembly is used for supplying power, the possibility that a plurality of power supplies supply power without uniformity and the device uses the subassemblies of each part to work asynchronously is avoided, and the improvement is realized.
Optionally, the power supply assembly includes a solar panel and an energy storage battery.
By adopting the technical scheme, the solar panel can directly utilize sunlight to generate electricity, is arranged outside the supporting box body, can receive the sunlight and can convert the sunlight into electric energy; the energy storage battery can store the converted electric energy and supply power to the device at any time, so that the use convenience of the positioning monitoring device is improved.
Optionally, the system further comprises a wireless transmission module; the controller is wirelessly connected with a data monitoring center arranged on the ground through a wireless transmission module.
Through adopting above-mentioned technical scheme, through wireless transmission module, the controller can be with location monitoring data transmission to subaerial data monitoring center to make the staff learn where the transmission line has appeared the trouble, can in time overhaul, improved transmission line's safety in utilization.
In summary, the present application includes at least one of the following beneficial technical effects:
by adopting the scheme of the controller, the second roller and the pressure sensor, the power transmission line is positioned between the first roller and the second roller, so that the possibility of positioning detection data errors caused by derailment of the monitoring device in windy weather is reduced; the use stability of the positioning monitoring device is improved, the detection accuracy of the positioning monitoring device is improved, and the working efficiency of the positioning monitoring device is improved.
Drawings
FIG. 1 is a front view of an embodiment of the present application.
Fig. 2 is a side view of an embodiment of the present application.
Fig. 3 is a schematic system structure diagram of a detection system according to an embodiment of the present application.
Description of reference numerals: 1. a current transformer; 11. a closing member; 111. a trapezoidal shaped closure member; 12. a return spring; 2. supporting the box body; 21. a support pillar; 22. an insulating slot; 3. a controller; 4. a roller assembly; 41. a first roller; 42. a second roller; 5. a drive assembly; 51. a drive motor; 6. a telescoping assembly; 61. an electric push rod; 7. a pressure sensor; 8. a power supply assembly; 9. a wireless transmission module; 10. a support assembly; 101. a first support bar; 102. a second support bar.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses overhead transmission line fault location on-line monitoring device. Referring to fig. 1 and 2, the fault location online monitoring device for the overhead transmission line mainly comprises a current transformer 1, a supporting box body 2, a controller 3, a roller assembly 4, a driving assembly 5 and a telescopic assembly 6. The current transformer 1 is arranged on the supporting box body 2 and used for outputting a current signal; the controller 3 is arranged on the supporting box body 2, is connected with the current transformer 1, receives current signals, and judges whether the power transmission line fails or not and the specific position of the power transmission line where the power transmission line fails through analysis.
The roller assembly 4 includes two roller groups, each of which includes a first roller 41 and a second roller 42; the two first rollers 41 are arranged on the support box body 2 and are positioned above the power transmission line, and the two second rollers 42 are positioned below the power transmission line; the bottom end of the telescopic assembly 6 is connected with the supporting box body 2, the telescopic end of the telescopic assembly 6 is connected with the two second rollers 42, and the telescopic end can be stretched in a direction perpendicular to the power transmission line, so that the two second rollers 42 can also be stretched in the direction perpendicular to the power transmission line; the driving assembly 5 is connected to the two first rollers 41 to drive the two first rollers 41 to rotate, so that the two first rollers 41 can roll on the power transmission line. Through the cooperation use between the roller train, reduced because of strong wind weather, the positioning monitoring device derails and leads to the probability that the location detected data error appears, improved positioning monitoring device's detection accuracy, improved positioning monitoring device's stability in use, improved positioning monitoring device's work efficiency.
In the embodiment of the application, the current transformer 1 adopts a three-phase current transformer 1; the current transformer 1 is integrally annular, and the circumferential cross section of the annular is vertical to the supporting box body 2; the current transformer 1 is positioned on a central line perpendicular to the supporting box body 2 and is separated from the top of the supporting box body 2, so that the current transformer 1 is divided into two parts which are symmetrical left and right.
The top of current transformer 1 is provided with closed part 11, and closed part 11 includes two trapezoidal closure parts 111, and two trapezoidal closure parts 111 symmetry set up in current transformer 1's top, and the bottom of two trapezoidal closure parts 111 corresponds two parts on the left and right sides of connecting current transformer 1 respectively, and the top of two trapezoidal closure parts 111 is laminated mutually. A return spring group is arranged at the bottom of the current transformer 1; the reset spring group comprises two reset springs 12, one ends of the two reset springs 12 are connected to the bottom of the current transformer 1, and the other ends of the two reset springs are correspondingly connected with the left part and the right part of the current transformer 1 respectively. In a normal state, the top ends of the two trapezoidal closing parts 111 are attached to each other, and the current transformer 1 is in a closed state at the moment; when the top ends of the two trapezoidal closing members 111 are separated from each other, the current transformer 1 is restored to the closed state by the tensile force of the two return springs 12.
The supporting box body 2 is integrally rectangular, a supporting column 21 is arranged on the top surface of the supporting box body 2, and the supporting column 21 is connected with the bottom of the current transformer 1; the bottom surface of the support case 2 is provided with an insulation slot 22 for connection with an external insulation rod.
The controller 3 is arranged on the supporting box body 2, the input end of the controller 3 is connected with the current transformer 1, and the output end of the controller 3 is connected with the driving component 5.
The positioning monitoring device further comprises a support assembly 10, wherein the support assembly 10 comprises four first support rods 101 and two second support rods 102; one end of the first supporting rod 101 is connected with the supporting box body 2, the other end of the first supporting rod 101 is connected with the driving component 5, and the first supporting rod 101 vertically supports the box body 2.
The first roller 41 and the second roller 42 are both grooved wheels; the drive assembly 5 comprises a drive motor 51; one end of the first supporting rod 101 far away from the supporting box body 2 is connected with a driving motor 51; an output shaft of the driving motor 51 is perpendicular to the power transmission line and connected with the first roller 41, and a notch of the first roller 41 at the moment is aligned with the power transmission line; the driving motor 51 drives the first roller 41 to rotate so that the first roller 41 can roll on the power transmission line, so that the device can roll on the power transmission line, the current transformer 1 outputs a current signal in real time in the rolling process, and the controller 3 receives the current signal, positions and detects whether the power transmission line has a fault in real time.
The telescopic assembly 6 comprises two electric push rods 61; the two electric push rods 61 are respectively and symmetrically arranged at two sides of the current transformer 1; the bottom ends of the two electric push rods 61 are connected with the supporting box body 2, the telescopic ends are respectively and correspondingly connected with a second supporting rod 102, and the other end of the second supporting rod 102 is connected with a second roller 42; the telescopic end of the electric push rod 61 can be extended and retracted along the direction perpendicular to the power transmission line, so that the second roller 42 can be extended and retracted along the direction perpendicular to the power transmission line.
Two second gyro wheels 42 correspond the below that is located first gyro wheel 41 respectively for transmission line is in within the space that the notch of first gyro wheel 41 and second gyro wheel 42 encloses, has reduced because of the strong wind weather, and the positioning monitoring device derails and leads to the possibility that the error appears in the location detection data, has improved positioning monitoring device's detection accuracy.
The positioning monitoring device further comprises pressure sensors, the pressure sensors are of sheet structures, the pressure sensors 7 can be two in number and are respectively and correspondingly arranged on the inner walls of the notches of the second idler wheels 42, and no matter the device is in a stop state or a working state, the pressure sensors 7 can both contact the power transmission line, so that the pressure of the second idler wheels 42 on the power transmission line can be sensed, and pressure detection signals can be output.
Referring to fig. 3, the input end of the controller 3 is connected to the pressure sensor 7, the output end is connected to the electric push rod 61, and the controller 3 receives a pressure detection signal output by the pressure sensor 7; the controller 3 is preset with a pressure range value, when a pressure value reflected by a pressure detection signal received by the controller 3 exceeds the preset pressure range value, the controller 3 controls the electric push rod 61 to stretch up and down, so that the second roller 42 is driven to stretch up and down, the power transmission line is positioned in a space surrounded by the relative notches of the first roller 41 and the second roller 42, the use stability of the positioning monitoring device is improved, and the detection accuracy of the positioning monitoring device is improved.
The positioning monitoring device also comprises a wireless transmission module 9, and the wireless transmission module 9 can adopt one of a WIFI module, a 4G module, a 5G module and the like; the controller 3 is in wireless connection with the data monitoring center on the ground through the wireless transmission module 9 and sends out monitoring signals so that workers can know whether the power transmission line breaks down or not and the specific position of the broken down, and the working efficiency of the positioning monitoring device is improved by the connection mode.
The positioning monitoring device further comprises a power supply assembly 8, and the power supply assembly 8 comprises a solar panel and an energy storage battery; the power supply assembly 8 is connected with the controller 3, the current transformer 1, the electric push rod 61, the driving motor 51 and the pressure sensor 7; the power supply assembly 8 can supply power to the positioning monitoring device at any time, and the use convenience of the positioning monitoring device is improved.
In order to more clearly show the working principle of the device of the embodiment of the application, the use method of the device is described as follows:
firstly, inserting an external insulating rod into an insulating slot 22 at the bottom of a supporting box body 2, jacking up a positioning monitoring device to enable the top of a current transformer 1 to be aligned with a power transmission line, and forcibly jacking up the device to enable the power transmission line to enter the current transformer 1 through an opening of the current transformer 1 and be positioned between a first roller 41 and a second roller 42; the data monitoring center outputs a wireless control signal, the controller 3 receives the wireless control signal and controls the driving motor 51 to start, so that the positioning monitoring device works on the power transmission line.
In the working process of the positioning monitoring device, the current transformer 1 detects and sends a current signal, and the controller 3 receives the current signal and detects whether a line has a fault and the specific position of the line with the fault; meanwhile, the pressure sensor 7 detects the pressure of the second roller 42 on the power transmission line, outputs a pressure detection signal, and the controller 3 receives the pressure detection signal and compares the pressure detection signal with a preset pressure range value; if the pressure value reflected by the pressure detection signal received by the controller 3 exceeds the preset pressure range, the controller 3 controls the electric push rod 61 to enable the second roller 42 to stretch up and down, so that the power transmission line is located in a space formed by opposite notches of the first roller 41 and the second roller 42, and the probability of derailment of the power transmission line is reduced.
After the positioning monitoring device finishes working, the controller 3 outputs a monitoring signal, the data monitoring center receives the monitoring signal, whether the power transmission line breaks down or not is analyzed, the specific position of the line breaks down is obtained, and workers are timely dispatched to overhaul. Energy supply assembly 8 can last the power supply for location monitoring devices can place on the power transmission line always, is convenient for continue the detection achievement next time.
The device can reduce the probability of errors in positioning detection data due to derailment in windy weather, improves the use stability of the positioning monitoring device, improves the detection accuracy of the positioning monitoring device, and improves the working efficiency of the positioning monitoring device.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides an overhead type transmission line fault location on-line monitoring device which characterized in that: comprises a current transformer (1), a controller (3), a supporting box body (2), a roller component (4) and a driving component (5);
the current transformer (1) is fixedly arranged on the supporting box body (2) and is used for outputting a current signal;
the roller assembly (4) comprises two roller groups; the two roller groups are arranged on the supporting box body (2); the roller group comprises a first roller (41) and a second roller (42); the first roller (41) and the second roller (42) are grooved wheels;
the two first rollers (41) are respectively positioned at two sides of the current transformer (1) and above the power transmission line; the two second rollers (42) are respectively positioned below the power transmission line, and the two first rollers (41) and the two second rollers (42) are arranged in a one-to-one correspondence manner;
the driving assembly (5) is connected with the first roller (41) and is used for driving the first roller (41) to rotate to roll on the power transmission line;
the controller (3) is arranged on the supporting box body (2); the controller (3) is respectively connected with the current transformer (1) and the driving assembly (5); the controller (3) controls the driving component (5) to start and simultaneously receives the current signal.
2. The overhead transmission line fault location on-line monitoring device of claim 1, characterized in that: further comprising:
the pressure sensor (7) is arranged on the inner wall of the notch of the second roller (42) and used for sensing the pressure of the second roller (42) on the power transmission line and outputting a pressure detection signal;
the bottom end of the telescopic assembly (6) is fixedly arranged on the supporting box body (2), the telescopic end of the telescopic assembly (6) is connected with the second idler wheel (42), and the telescopic end can stretch along the direction perpendicular to the power transmission line.
3. The overhead transmission line fault location on-line monitoring device of claim 2, characterized in that: the pressure sensor (7) is arranged in a groove-shaped opening of the second roller (42) and is in contact with the surface of the power transmission line.
4. The overhead transmission line fault location on-line monitoring device of claim 2, characterized in that: the pressure sensors (7) are provided with two.
5. The overhead transmission line fault location on-line monitoring device of claim 2, characterized in that: the controller (3) is connected with the pressure sensor (7) and the telescopic assembly (6); the controller (3) receives the pressure detection signal and drives the telescopic end of the telescopic assembly (6) to stretch up and down according to the pressure detection signal, so that the power transmission line is limited between the first roller (41) and the second roller (42).
6. The overhead transmission line fault location on-line monitoring device of claim 2, characterized in that: the telescopic assembly (6) comprises an electric push rod (61).
7. The overhead transmission line fault location on-line monitoring device of claim 1, characterized in that: the current transformer (1) is a three-phase current transformer.
8. The overhead transmission line fault location on-line monitoring device of claim 2, characterized in that: also comprises a power supply assembly (8); the power supply assembly (8) is connected with the controller (3), the driving assembly (5) and the telescopic assembly (6).
9. The overhead transmission line fault location on-line monitoring device of claim 8, characterized in that: the power supply assembly (8) comprises a solar panel and an energy storage battery.
10. The overhead transmission line fault location on-line monitoring device of claim 1, characterized in that: the device also comprises a wireless transmission module (9); the controller (3) is wirelessly connected with a data monitoring center arranged on the ground through a wireless transmission module (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022893715.8U CN214409179U (en) | 2020-12-02 | 2020-12-02 | Overhead transmission line fault location on-line monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022893715.8U CN214409179U (en) | 2020-12-02 | 2020-12-02 | Overhead transmission line fault location on-line monitoring device |
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| CN214409179U true CN214409179U (en) | 2021-10-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114629244A (en) * | 2022-03-28 | 2022-06-14 | 三峡大学 | Transmission line safety trigger device and use method thereof |
| CN115825810A (en) * | 2023-02-24 | 2023-03-21 | 国网辽宁省电力有限公司 | Small current ground fault detection device for electric power system |
-
2020
- 2020-12-02 CN CN202022893715.8U patent/CN214409179U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114629244A (en) * | 2022-03-28 | 2022-06-14 | 三峡大学 | Transmission line safety trigger device and use method thereof |
| CN115825810A (en) * | 2023-02-24 | 2023-03-21 | 国网辽宁省电力有限公司 | Small current ground fault detection device for electric power system |
| CN115825810B (en) * | 2023-02-24 | 2023-04-18 | 国网辽宁省电力有限公司 | Low-current ground fault detection device for power system |
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