CN113267708A - Bird-repelling fault indicator - Google Patents
Bird-repelling fault indicator Download PDFInfo
- Publication number
- CN113267708A CN113267708A CN202110709305.XA CN202110709305A CN113267708A CN 113267708 A CN113267708 A CN 113267708A CN 202110709305 A CN202110709305 A CN 202110709305A CN 113267708 A CN113267708 A CN 113267708A
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- China
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- bird
- repelling
- unit
- box body
- collecting device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/16—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves
- A01M29/18—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves using ultrasonic signals
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- Life Sciences & Earth Sciences (AREA)
- Birds (AREA)
- Engineering & Computer Science (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Catching Or Destruction (AREA)
Abstract
The invention relates to the technical field of power equipment correlation, and discloses a bird-repelling fault indicator which comprises a collecting device, a collecting device and a bird-repelling device. The collecting device comprises a collecting unit, a display unit and a power supply unit, and the collecting device comprises a receiving unit, a control unit and a power supply unit. The acquisition unit acquires and outputs current and voltage information in a line, the receiving unit receives the current and voltage information and transmits the current and voltage information to the control unit, the control unit compares and analyzes the current and voltage information to determine whether the line is in fault, a result is sent to the display unit, and the display unit can correspondingly display the result. The monitoring and the instruction of circuit trouble can be realized to collection system and collection device's cooperation, and bird repellent device's setting then can effectively reduce the emergence of circuit trouble to this reduces fortune dimension personnel's work load, guarantees the reliability of circuit power supply.
Description
Technical Field
The invention relates to the technical field of power equipment correlation, in particular to a bird-repelling fault indicator.
Background
With the continuous development of power technology, the structure of a power line is more and more complex, and branch lines are numerous, so that when the line fails, the failed line and branch are difficult to be quickly judged, a power supply department needs to configure a large number of operation and maintenance personnel, and the maintenance and operation and inspection costs of a power supply company are increased.
In addition, along with the continuous improvement of ecological environment in recent years, the situation of tripping of a high-voltage transmission line caused by birds also happens occasionally, in addition, the bird nest is also very easy to cause faults such as short circuit of the high-voltage line, pollution flashover of insulators and the like on a distribution line tower, so that economic and manpower losses are caused, particularly, 3-7 months per year are seasons in which the birds multiply, the problems are particularly serious, and the workload is increased for operation and maintenance personnel to timely solve the problems.
Therefore, there is a need for a bird-repelling fault indicator to solve the above problems.
Disclosure of Invention
The invention aims to provide a bird-repelling fault indicator to realize accurate indication of a line fault point, reduce the workload of operation and maintenance personnel, ensure the reliability of line power supply and effectively prevent bird damage.
As the conception, the technical scheme adopted by the invention is as follows:
a bird-repelling fault indicator comprising:
the acquisition device can be arranged on a circuit and comprises a shell, and an acquisition unit, a display unit and a power supply unit which are arranged in the shell, wherein the acquisition unit can acquire and output current and voltage information on the circuit, the display unit can display whether the circuit is in fault, and the power supply unit is used for providing electric energy required by operation for the acquisition device;
the collecting device is in signal connection with the collecting device and comprises a receiving unit and a control unit, the receiving unit is used for receiving the current and voltage information and transmitting the current and voltage information to the control unit, the control unit can analyze whether the line is in fault according to the current and voltage information and feed an analysis result back to the display unit for displaying, the collecting device further comprises a box body and an electricity supply unit, the electricity supply unit is used for providing electric energy required by operation for the collecting device, the receiving unit is arranged in the box body, and the box body is configured to enable the collecting device to be arranged on a tower;
and the bird repelling device is arranged on the collecting device and is electrically connected with the power supply unit.
Further, the power supply unit comprises a battery A and a power taking coil, the power taking coil is configured to take power from the circuit to operate the acquisition device, and the battery A is a standby power supply for operating the acquisition device.
Further, the casing includes casing and lower casing, it can be relative to go up the casing lower casing rotates and will the circuit clamp is located go up the casing with between the casing down, get electric coil's partly set up in go up the casing, get electric coil's another part set up in the casing down, it is right in order to realize the cover of circuit is established.
Further, the casing still includes the display housing, the display element set up in the display housing, the display element is the pilot lamp, just the display housing is made by the printing opacity material.
Further, still be equipped with the mounting groove on the casing down, the mounting groove can be used to the installation drive bird type fault indicator's data plate.
Further, the power supply unit comprises a battery B and a solar cell panel, the battery B is arranged in the box body, the solar cell panel is arranged outside the box body and can form an included angle with the side wall of the box body, and the battery B is a standby power supply for operation of the collecting device.
Further, the box includes box body and apron, the apron rotate connect in the box body, the box still includes spring lock and sealing washer, the spring lock can with the sealing washer clamp is located the box body with in order to realize between the apron the sealing of box.
Further, an installation frame is arranged on the outer side of the cover plate, and the solar cell panel is fixed on the cover plate through the installation frame.
Further, a fixing part is arranged on the outer side of the box body, and the fixing part is configured to fix the collecting device on the tower.
Further, the bird repellent device is an ultrasonic buzzer.
The invention has the beneficial effects that:
the invention provides a bird-repelling fault indicator which comprises a collecting device, a collecting device and a bird-repelling device. The collecting device comprises a collecting unit, a display unit and a power supply unit, and the collecting device comprises a receiving unit, a control unit and a power supply unit. The acquisition unit acquires and outputs current and voltage information in a line, the receiving unit receives the current and voltage information and transmits the current and voltage information to the control unit, the control unit compares and analyzes the current and voltage information to determine whether the line is in fault, a result is sent to the display unit, and the display unit can correspondingly display the result. The monitoring and the instruction of circuit trouble can be realized to collection system and collection device's cooperation, and bird repellent device's setting then can effectively reduce the emergence of circuit trouble to this reduces fortune dimension personnel's work load, guarantees the reliability of circuit power supply. In addition, the bird repelling device of the power line is integrally arranged on the fault indicator, so that the power line is protected from being damaged by birds, the normal operation of the fault indicator is also protected, and the device achieves two purposes at one stroke and is ingenious in design. Moreover, if the fault indicator and the bird repelling device are separately arranged, the installation distance of the fault indicator and the bird repelling device is close to that of the insulator, so that the bird repelling device is integrated on the fault indicator, the installation workload can be reduced, and repeated labor is avoided.
Drawings
Fig. 1 is an assembly schematic diagram of a bird-repelling fault indicator provided in an embodiment of the invention;
fig. 2 is a schematic structural diagram of an acquisition device according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a collecting device according to an embodiment of the present invention.
In the figure:
1. a collection device; 11. an upper housing; 12. a lower housing; 121. mounting grooves; 13. a display housing;
2. a collection device; 21. a box body; 211. a fixed part; 22. a cover plate; 221. a mounting frame; 23. a solar panel;
3. a bird repelling device.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
The fault indicator is used for monitoring and identifying whether the line has a fault or not, and can output an alarm signal when the monitored line has the fault so that the fault position of the line can be rapidly known by power distribution operation and maintenance personnel, and therefore the fault indicator can be repaired as soon as possible to ensure the power supply of the line. The invention provides a bird-repelling fault indicator, which particularly comprises a collecting device, a collecting device and a bird-repelling device, wherein the collecting device is used for collecting the bird-repelling fault indicator, and the bird-repelling device is used for preventing the bird from being damaged.
Example one
As shown in fig. 1, the housing of the collecting device 1 has an installation space, so that the line can be inserted into the installation space, and the collecting device 1 is connected to the line, thereby further ensuring that the collecting device 1 can monitor the line for faults. In this embodiment, the collecting device 1 is mainly responsible for collecting and outputting current and voltage information in the line, and the collected current and voltage information needs to be transmitted to the collecting device 2 for further processing. Specifically, the acquisition device 1 includes an acquisition unit and a display unit, and the aggregation device 2 includes a reception unit and a control unit. The acquisition unit acquires and outputs current and voltage information in the line, the receiving unit can receive the current and voltage information and transmit the current and voltage information to the control unit, the control unit analyzes and determines whether the line is in fault, and finally, an analysis result is sent to the display unit, and the display unit can correspondingly display the current and voltage information according to the result. Specifically, the control unit has a set threshold, when the receiving unit transmits the received current and voltage information to the control unit by using a network, the received current and voltage information needs to be compared with the set threshold for analysis, if the transmitted information is inconsistent with the set threshold, a line fault is considered, and then the analysis result needs to be further fed back to the display unit for display. In this embodiment, the control unit is a power grid platform system, has current and voltage information of a plurality of power lines, and can satisfy comparative analysis of the current and voltage information of the collected lines. The collecting device 1 further comprises a power supply unit, the collecting device 2 further comprises a power supply unit, the power supply unit and the power supply unit are relatively consistent in function, the power supply unit provides electric energy required by normal operation for the collecting device 1, and the power supply unit provides electric energy required by normal operation for the collecting device 2. Naturally, the collecting device 2 also comprises a housing, inside which the receiving unit is arranged, by means of which the collecting device 2 can be arranged on a pole tower. In addition, the bird repelling device 3 is disposed on the collecting device 2 and electrically connected to the power supply unit 2, that is, in this embodiment, the power supply unit of the collecting device 2 is further configured to provide the bird repelling device 3 with electric energy required for normal operation.
In order to mount and fix the collecting device on the line, as shown in fig. 2, in this embodiment, the housing includes an upper housing 11 and a lower housing 12, the upper housing 11 can rotate relative to the lower housing 12, and the line is clamped between the upper housing 11 and the lower housing 12. Specifically, one side of the upper shell and one side of the lower shell are connected through the rotating shaft, and the side without the rotating shaft is provided with the buckling part, so that the upper shell can be fixed relative to the lower shell to clamp a circuit.
After the acquisition device 1 is clamped on a circuit, an acquisition unit and a power taking unit arranged in the acquisition device can work. Specifically, the acquisition unit is used for acquiring current and voltage information of a line, and as for the specific type and structural composition of the acquisition unit, the acquisition unit belongs to the prior art in the field and has a plurality of mature means for selection. In this embodiment, the acquisition unit may be a rogowski coil, and when the line passes through the inside of the annular structure of the rogowski coil, the rogowski coil may measure the current of the line and output a signal. It can be known that the rogowski coil needs to be wrapped around the conductor to be measured when measuring, and two ends are connected together, so in this embodiment, one end of the rogowski coil is located in the upper shell 11, and the other end is located in the lower shell 11, when the two are buckled, the rogowski coil can form an annular structure.
And the power taking coil is arranged in parallel with the Rogowski coil and is used for taking power from a circuit so as to allow the acquisition device 1 to operate. In this embodiment, get electric coil and include the iron core and the coil of cover on the iron core, the iron core is preferred permalloy core, and the iron core includes upper iron core and lower iron core that are semi-annular structure, and upper iron core and lower iron core can the looks butt at the both ends of circumferential direction and form annular structure to locate this annular structure with the circuit cover in. The power supply unit further comprises a battery A, and the battery A is a standby power supply for operation of the acquisition device 1. The battery A is set for ensuring the normal operation of the acquisition device 1 when the power supply of the power-taking coil is insufficient. Preferably, the assembling portion of the battery a is disposed at a side of the case, and the battery a can be replaced without disassembling the case.
The shell further comprises a display shell 13, the display unit is arranged in the display shell 13, the display shell 13 is made of light-transmitting materials, and the display unit is an indicator lamp. Preferably, the pilot lamp is provided with a plurality ofly, and a plurality of pilot lamps set up at the even interval of circumferential direction, and when the control unit judged the circuit trouble and transmitted the display element with the analysis result, the pilot lamp will send red light and warn.
Still be equipped with mounting groove 121 on the casing 12 down, mounting groove 121 can be used for the installation to drive bird type fault indicator's data plate. The nameplate is concavely arranged on the surface of the shell, so that the nameplate arranged in the open air can be protected to a certain extent.
In addition, the power supply unit comprises a battery B and a solar cell panel 23, wherein the battery B is arranged in the box body, and the solar cell panel 23 is arranged outside the box body. Similar to the collecting device 1, the solar panel 23 arranged outside the box is used for supplying the collecting device 2 with electric energy required by normal operation, and the battery B is arranged for ensuring the normal operation of the collecting device 2 when the solar panel 23 is short of power supply. In order to make the solar cell panel 23 have a higher photoelectric conversion rate, the solar cell panel 23 is disposed on the sidewall of the box body in an inclined manner.
As shown in fig. 3, the box body includes a box body 21 and a cover plate 22, the cover plate 22 is rotatably connected to the box body 21, and the box body further includes a latch and a seal ring, and the latch can clamp the seal ring between the box body 21 and the cover plate 22 to seal the box body. The above arrangement is to ensure that the receiving unit and the battery B arranged in the box body are protected from the threat of moisture and insect pests, and can maintain the effective operation for a longer time.
The outer side of the cover plate 22 is provided with a mounting frame 221, and the solar cell panel 23 is fixed on the cover plate 22 through the mounting frame 221. The mounting frame 221 includes an upper mounting portion, a lower mounting portion, and a support rod connected to the lower mounting portion, and when mounting, one end of the solar cell panel 23 is connected to the upper mounting portion, and the other end is connected to the lower mounting portion through the support rod, so that the inclined arrangement of the solar cell panel 23 on the cover plate 22 can be realized.
The outer side of the box body 21 is provided with a fixing part 211, and the fixing part 211 is used for fixing the collecting device 2 on a tower. Specifically, the fixing portion 211 may be engaged with a fastening member and then fixed with a bolt. The fastener may preferably be a hoop.
Optionally, in this embodiment, the bird repelling device 3 is an ultrasonic buzzer. By emitting the ultrasonic waves sensitive to birds, the bird repelling effect is achieved, and the line fault problem is effectively reduced.
Example two
The embodiment discloses a bird-repelling fault indicator, and the difference between the bird-repelling fault indicator in the embodiment and the bird-repelling fault indicator in the embodiment one is as follows: the support rod is adjustable in length in its axial direction. Specifically, the bracing piece includes rotates the first bracing piece of being connected with the lower mounting portion and can dismantle with solar cell panel 23 and connect the ground second bracing piece, and wherein, first bracing piece can overlap and locate on the second bracing piece and along the axial direction removal of second bracing piece. After the length required by the supporting rod is determined, the first supporting rod and the second supporting rod can be relatively fixed, and the fixing method can be that a plurality of adjusting holes are formed in the first supporting rod and the second supporting rod, and the adjusting holes of the first supporting rod and the second supporting rod can be overlapped, so that the fixing piece can penetrate through the overlapped adjusting holes to fix the first supporting rod and the second supporting rod. With this arrangement, since the support rod is rotatably connected to the lower mounting portion, if the length of the support rod is changed, the angle at which the solar cell panel 23 is inclined can be adjusted to prevent the position at which the concentrator 2 is mounted from affecting the usability of the solar cell panel 23.
In addition, the rest of the structure of the bird repelling fault indicator provided in this embodiment is the same as that of the bird repelling fault indicator in the first embodiment, and details are not repeated here.
The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, which changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A bird-repelling fault indicator, comprising:
the acquisition device (1) can be arranged on a circuit and comprises a shell, an acquisition unit, a display unit and a power supply unit, wherein the acquisition unit, the display unit and the power supply unit are arranged in the shell, the acquisition unit can acquire and output current and voltage information on the circuit, the display unit can display whether the circuit is in fault, and the power supply unit is used for providing electric energy required by operation for the acquisition device (1);
the collecting device (2) is in signal connection with the collecting device (1), the collecting device (2) comprises a receiving unit and a control unit, the receiving unit is used for receiving the current and voltage information and transmitting the current and voltage information to the control unit, the control unit can analyze whether the line is in fault according to the current and voltage information and feed back an analysis result to the display unit for displaying, the collecting device (2) further comprises a box body and an electricity supply unit, the electricity supply unit is used for providing electric energy required by operation for the collecting device (2), the receiving unit is arranged in the box body, and the box body is configured to enable the collecting device (2) to be arranged on a tower;
and the bird repelling device (3) is arranged on the collecting device (2) and is electrically connected with the power supply unit.
2. A bird-repelling fault indicator according to claim 1, wherein the power supply unit comprises a battery a and a power coil configured to draw power from the line for operation of the acquisition device (1), the battery a being a backup power source for operation of the acquisition device (1).
3. A bird repelling type fault indicator according to claim 2, wherein the housing comprises an upper housing (11) and a lower housing (12), the upper housing (11) can rotate relative to the lower housing (12) and clamp the circuit between the upper housing (11) and the lower housing (12), one part of the power taking coil is arranged on the upper housing (11), and the other part of the power taking coil is arranged on the lower housing (12) to realize the sleeving of the circuit.
4. A bird-repelling fault indicator according to claim 2, wherein the housing further comprises a display housing (13), the display unit is disposed in the display housing (13), the display unit is an indicator light, and the display housing (13) is made of a light-transmitting material.
5. A bird-repelling fault indicator according to claim 3, wherein a mounting groove (121) is further formed in the lower shell (12), and the mounting groove (121) can be used for mounting a nameplate of the bird-repelling fault indicator.
6. A bird-repelling fault indicator according to claim 1, wherein the power supply unit comprises a battery B and a solar panel (23), the battery B is arranged in the box body, the solar panel (23) is arranged outside the box body and can form an included angle with the side wall of the box body, and the battery B is a standby power supply for operation of the collecting device (2).
7. A bird repelling type fault indicator according to claim 6, wherein the box body comprises a box body (21) and a cover plate (22), the cover plate (22) is rotatably connected to the box body (21), the box body further comprises a snap lock and a sealing ring, and the snap lock can clamp the sealing ring between the box body (21) and the cover plate (22) to achieve sealing of the box body.
8. A bird repelling fault indicator according to claim 7, wherein a mounting bracket (221) is provided on the outside of the cover plate (22), and the solar panel (23) is fixed to the cover plate (22) through the mounting bracket (221).
9. A bird repelling fault indicator according to claim 7, characterized in that the box body (21) is provided with a fixing part (211) on the outside, and the fixing part (211) is configured to fix the collecting device (2) on the tower.
10. A bird-repelling fault indicator according to claim 1, characterized in that the bird-repelling device (3) is an ultrasonic buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110709305.XA CN113267708A (en) | 2021-06-25 | 2021-06-25 | Bird-repelling fault indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110709305.XA CN113267708A (en) | 2021-06-25 | 2021-06-25 | Bird-repelling fault indicator |
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| Publication Number | Publication Date |
|---|---|
| CN113267708A true CN113267708A (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110709305.XA Pending CN113267708A (en) | 2021-06-25 | 2021-06-25 | Bird-repelling fault indicator |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120286956A1 (en) * | 2009-12-31 | 2012-11-15 | Lee Jung Mi | Bird repelling device |
| CN202563033U (en) * | 2012-03-14 | 2012-11-28 | 北京中电欧亚科技有限公司 | Distribution line fault indicator |
| CN207037004U (en) * | 2017-05-15 | 2018-02-23 | 北京科锐配电自动化股份有限公司 | A kind of electric power line fault indicator |
| CN207882376U (en) * | 2018-01-22 | 2018-09-18 | 宁波三星智能电气有限公司 | A kind of electric power line fault indicator |
| CN110632456A (en) * | 2019-09-23 | 2019-12-31 | 载宇(湖北)电气科技有限公司 | Power failure indicating device capable of preventing birds and melting accumulated snow |
| CN210780227U (en) * | 2019-10-21 | 2020-06-16 | 北京鸿伟九舟电子设备有限公司 | Bird-proof fault indicator |
| CN211064822U (en) * | 2019-08-26 | 2020-07-24 | 国网新疆电力有限公司阿勒泰供电公司 | Visual monitoring bird repellent device of transmission line |
| CN211427097U (en) * | 2019-12-19 | 2020-09-04 | 国家电网有限公司 | Bird repelling and parameter monitoring device for power transmission line |
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2021
- 2021-06-25 CN CN202110709305.XA patent/CN113267708A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120286956A1 (en) * | 2009-12-31 | 2012-11-15 | Lee Jung Mi | Bird repelling device |
| CN202563033U (en) * | 2012-03-14 | 2012-11-28 | 北京中电欧亚科技有限公司 | Distribution line fault indicator |
| CN207037004U (en) * | 2017-05-15 | 2018-02-23 | 北京科锐配电自动化股份有限公司 | A kind of electric power line fault indicator |
| CN207882376U (en) * | 2018-01-22 | 2018-09-18 | 宁波三星智能电气有限公司 | A kind of electric power line fault indicator |
| CN211064822U (en) * | 2019-08-26 | 2020-07-24 | 国网新疆电力有限公司阿勒泰供电公司 | Visual monitoring bird repellent device of transmission line |
| CN110632456A (en) * | 2019-09-23 | 2019-12-31 | 载宇(湖北)电气科技有限公司 | Power failure indicating device capable of preventing birds and melting accumulated snow |
| CN210780227U (en) * | 2019-10-21 | 2020-06-16 | 北京鸿伟九舟电子设备有限公司 | Bird-proof fault indicator |
| CN211427097U (en) * | 2019-12-19 | 2020-09-04 | 国家电网有限公司 | Bird repelling and parameter monitoring device for power transmission line |
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Application publication date: 20210817 |