CN218412753U - Distribution network PT ferromagnetic resonance monitor - Google Patents
Distribution network PT ferromagnetic resonance monitor Download PDFInfo
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- CN218412753U CN218412753U CN202222410890.6U CN202222410890U CN218412753U CN 218412753 U CN218412753 U CN 218412753U CN 202222410890 U CN202222410890 U CN 202222410890U CN 218412753 U CN218412753 U CN 218412753U
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Abstract
The utility model relates to a resonance monitor technical field, in particular to a distribution network PT ferromagnetic resonance monitor, which comprises a shell for placing a monitor body, wherein the left side and the right side of the shell are symmetrically provided with a heat dissipation hole, the inner wall of the shell is provided with a protective cover at each heat dissipation hole, a fan blade is arranged in the protective cover, a fan blade motor for driving the fan blade to rotate is arranged on the protective cover, and the protective cover is of a net structure; the utility model can increase the heat dissipation function of the shell by arranging the fan blades in the shell and arranging the heat dissipation fins at the bottom of the shell, and can better dissipate the heat of the monitor body in the shell; meanwhile, the heat conduction net is arranged inside the shell, when the monitor is used in winter, the heat conduction net can be electrified to heat the shell, the gas inside the shell can be effectively prevented from being liquefied on the inner wall of the shell to form water drops, the corrosion of the water drops on the inner wall of the shell can be avoided, and meanwhile, the use safety of the monitor can be reduced.
Description
Technical Field
The utility model relates to a resonance monitor technical field specifically is a distribution network PT ferroresonance monitor.
Background
In a neutral point ungrounded power distribution network system, ferromagnetic resonance caused by saturation of a voltage transformer (PT) frequently occurs, which accounts for a large proportion in overvoltage accidents of the neutral point ungrounded system and seriously influences the safe operation of the power distribution system. In distribution networks with ungrounded neutral points, the internal overvoltage that is mainly present is the ferroresonant overvoltage caused by electromagnetic voltage transformers (PT). Ferroresonance is an internal overvoltage phenomenon in power systems, which poses a great threat to the safe operation of power systems. Due to over-current and over-voltage, explosion of the lightning arrester, serious accidents of burning equipment such as a transformer and a mutual inductor and even personal injuries and deaths are often caused. Although ferromagnetic resonance under different conditions occurs in systems with different voltage grades, the frequency division ferromagnetic resonance mainly occurs in a neutral point insulation system in a power distribution network due to the fact that a line-to-ground capacitor is connected with an iron core inductor of a line voltage transformer in parallel, the ferromagnetic resonance is the most frequent, the ferromagnetic resonance is easy to excite, and the resonance area is large. Therefore, a ferroresonance monitor is needed to monitor the ferroresonance times in real time.
When the ferromagnetic resonance monitor in the prior art is used, the monitor body positioned in the shell of the ferromagnetic resonance monitor can generate more heat due to larger work tasks, if the generated heat is not quickly dissipated, the normal use of the monitor body can be influenced, the shell of the device is mostly made of metal, when the monitor is used in winter, the air in the shell is very easy to liquefy on the inner wall of the shell to form water drops, the water drops can also endanger the normal use of the monitor body, the heat dissipation structure arranged on the ferromagnetic resonance monitor shell in the prior art is single, the heat dissipation requirement when the monitor body is fully loaded in work can not be met, and the interior of the ferromagnetic resonance monitor is not provided with an auxiliary component for preventing condensation drops, so that the formation of the water drops in the shell in winter is reduced. In view of this, we propose a power distribution network PT ferroresonance monitor.
SUMMERY OF THE UTILITY MODEL
In order to make up for above not enough, the utility model provides a distribution network PT ferroresonance monitor.
The technical scheme of the utility model is that:
a distribution network PT ferromagnetic resonance monitor comprises a shell for placing a monitor body, wherein the left side and the right side of the shell are symmetrically provided with a heat dissipation hole, the inner wall of the shell is provided with a protective cover at each heat dissipation hole, a fan blade is arranged in the protective cover, a fan blade motor for driving the fan blade to rotate is arranged on the protective cover, and the protective cover is of a net structure; the inner walls of the front side and the rear side of the shell are respectively provided with a heat conduction net consisting of a plurality of transverse heat conduction wires and longitudinal heat conduction wires, the top of each longitudinal heat conduction wire is provided with a wiring board which can be connected with a power supply of the monitor body through a wire, and one wire is provided with an electric control switch; the bottom of the shell is fixedly connected with a plurality of radiating fins which are arranged in parallel.
According to the preferable technical scheme, the top of the shell is hinged to a top opening door through a hinge, one end, away from the hinge, of the top opening door is integrally formed with a fixing block, and the fixing block is connected with the top of the shell through a first fixing bolt.
As a preferable technical scheme, a protective net is installed in each heat dissipation hole.
As a preferred technical scheme, a baffle is arranged on the outer wall of the shell and positioned outside each heat dissipation hole, and the baffle is connected with the outer wall of the shell through a plurality of second fixing bolts.
As the preferred technical scheme, a plurality of threaded holes which are respectively in threaded connection with the fixing bolts are formed in the outer walls of the left side and the right side of the shell.
Preferably, a mounting plate is fixedly connected to the outer wall of the rear side of the housing.
As a preferred technical scheme, the four corners of the mounting plate are respectively provided with a mounting hole for fixing the shell.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model can increase the heat dissipation function of the shell by arranging the fan blades in the shell and arranging the heat dissipation fins at the bottom of the shell, and can better dissipate the heat of the monitor body in the shell; meanwhile, the heat conduction net is arranged inside the shell, when the monitor is used in winter, the heat conduction net can be electrified to heat the shell, the gas inside the shell can be effectively prevented from being liquefied on the inner wall of the shell to form water drops, the corrosion of the water drops on the inner wall of the shell can be avoided, and meanwhile, the use safety of the monitor can be reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the present invention shown in fig. 1 with the baffle removed;
fig. 3 is a schematic structural view of the present invention after the top door is removed from fig. 2;
fig. 4 is a schematic structural view of the middle protective cover, the fan blade motor and the protective net of the present invention.
The meaning of the individual reference symbols in the figures is:
1. a housing; 10. opening the door at the top; 100. a fixed block; 101. a first fixing bolt; 11. a hinge; 12. a protective net; 13. a threaded hole; 14. a fan blade; 140. a fan motor; 15. a protective cover; 16. heat dissipation holes; 17. transverse heat conducting wires; 18. longitudinal heat conducting wires; 19. a wiring board; 2. a heat dissipating fin; 3. a baffle plate; 30. a second fixing bolt; 4. mounting a plate; 40. and (7) installing holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution:
a distribution network PT ferromagnetic resonance monitor comprises a shell 1 for placing a monitor body, wherein the left side and the right side of the shell 1 are symmetrically provided with a heat dissipation hole 16, the inner wall of the shell 1 at each heat dissipation hole 16 is provided with a protective cover 15, a fan blade 14 is arranged in the protective cover 15, a fan blade motor 140 for driving the fan blade 14 to rotate is arranged on the protective cover 15, and the protective cover 15 is of a net structure; the inner walls of the front side and the rear side of the shell 1 are respectively provided with a heat conduction net consisting of a plurality of transverse heat conduction wires 17 and longitudinal heat conduction wires 18, the top of each longitudinal heat conduction wire 18 is provided with a wiring board 19 which can be connected with a power supply of the monitor body through a wire, and one wire is provided with an electric control switch; the bottom of the shell 1 is fixedly connected with a plurality of radiating fins 2 which are arranged in parallel. The fan blades are arranged in the shell 1, and the radiating fins 2 are arranged at the bottom of the shell 1, so that the radiating function of the shell 1 can be improved, and the monitor body positioned in the shell 1 can be better radiated; meanwhile, the heat conduction net is arranged inside the shell 1, when the monitor is used in winter, the heat conduction net can be electrified to heat the shell 1, the gas inside the shell 1 can be effectively prevented from being liquefied on the inner wall of the shell to form water drops, the corrosion of the water drops to the inner wall of the shell 1 can be avoided, and meanwhile, the use safety of the monitor body can be reduced.
Preferably, the top of the housing 1 is hinged to a top door 10 through a hinge 11, an end of the top door 10 away from the hinge 11 is integrally formed with a fixing block 100, and the fixing block 100 is connected to the top of the housing 1 through a fixing bolt 101. The top door 10 is provided on the top of the housing 1, which can facilitate the use of the monitor body during maintenance or repair.
Preferably, in the present embodiment, one protection net 12 is installed in each heat dissipation hole 16. For protection against rotation of the fan blades 14.
Preferably, a baffle 3 is arranged on the outer wall of the housing 1 outside each heat dissipation hole 16, and the baffle 3 is connected with the outer wall of the housing 1 through a plurality of second fixing bolts 30. In winter, the heat dissipation holes 16 can be sealed by using the baffle 3, so that the influence of cold air on the monitor body is reduced, and in winter, the fan blades 14 are not used for auxiliary heat dissipation.
Preferably, the outer walls of the left and right sides of the housing 1 are respectively provided with a plurality of threaded holes 13 which are respectively in threaded connection with the second fixing bolts 30.
Preferably, in this embodiment, a mounting plate 4 is fixedly connected to the outer wall of the rear side of the housing 1. The mounting plate 4 is provided with a mounting hole 40 at four corners for fixing the housing 1. The installation of the entire device can be facilitated.
It should be added that the electric control switch and the vane motor 140 are both connected to the power supply of the monitor body through wires, and the electric control switch is also installed on the wires connecting the vane motor 140 to the power supply of the monitor body.
When the utility model is used, the power distribution network PT ferromagnetic resonance monitor can increase the heat dissipation function of the shell 1 by arranging the fan blades in the shell 1 and arranging the heat dissipation fins 2 at the bottom of the shell 1, and can better dissipate heat of the monitor body positioned in the shell 1; meanwhile, when the heat conduction net is arranged in the shell 1, the heat conduction net can be electrified to heat the shell 1, so that gas in the shell 1 can be effectively prevented from being liquefied on the inner wall to form water drops, the corrosion of the water drops on the inner wall of the shell 1 can be avoided, and the use safety of the monitor can be reduced; when the fan 14 is in use, the fan motor 140 is used to drive the fan to rotate.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only the preferred embodiments of the present invention, and is not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A distribution network PT ferroresonance monitor, includes and is located shell (1) of placing the monitor body, its characterized in that: the fan blade protection device is characterized in that the left side and the right side of the shell (1) are symmetrically provided with a heat dissipation hole (16), the inner wall of the shell (1) is provided with a protection cover (15) at each heat dissipation hole (16), fan blades (14) are arranged in the protection cover (15), a fan blade motor (140) for driving the fan blades (14) to rotate is arranged on the protection cover (15), and the protection cover (15) is of a net structure; heat-conducting nets consisting of a plurality of transverse heat-conducting wires (17) and longitudinal heat-conducting wires (18) are mounted on the inner walls of the front side and the rear side of the shell (1), a wiring board (19) which can be connected with a power supply of the monitor body through a wire is mounted at the top of each longitudinal heat-conducting wire (18), and an electric control switch is arranged on one wire; the bottom of the shell (1) is fixedly connected with a plurality of radiating fins (2) which are arranged in parallel.
2. The power distribution network PT ferroresonance monitor of claim 1 wherein: the top of the shell (1) is hinged to a top opening door (10) through a hinge (11), one end, far away from the hinge (11), of the top opening door (10) is integrally formed to be provided with a fixing block (100), and the fixing block (100) is connected with the top of the shell (1) through a fixing bolt I (101).
3. The power distribution network PT ferroresonance monitor of claim 2, wherein: and a protective net (12) is arranged in each heat dissipation hole (16).
4. The power distribution network PT ferroresonance monitor of claim 3 wherein: the outer wall of the shell (1) is located on the outer side of each heat dissipation hole (16) and is provided with a baffle (3), and the baffle (3) is connected with the outer wall of the shell (1) through a plurality of second fixing bolts (30).
5. The power distribution network PT ferroresonance monitor of claim 4 wherein: and the outer walls of the left side and the right side of the shell (1) are respectively provided with a plurality of threaded holes (13) which are respectively in threaded connection with the second fixing bolts (30).
6. The PT ferroresonance monitor for a power distribution network of claim 1 wherein: the outer wall of the rear side of the shell (1) is fixedly connected with a mounting plate (4).
7. The power distribution network PT ferroresonance monitor of claim 6, wherein: the four corners of the mounting plate (4) are provided with mounting holes (40) for fixing the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222410890.6U CN218412753U (en) | 2022-09-13 | 2022-09-13 | Distribution network PT ferromagnetic resonance monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222410890.6U CN218412753U (en) | 2022-09-13 | 2022-09-13 | Distribution network PT ferromagnetic resonance monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218412753U true CN218412753U (en) | 2023-01-31 |
Family
ID=85031953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222410890.6U Active CN218412753U (en) | 2022-09-13 | 2022-09-13 | Distribution network PT ferromagnetic resonance monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218412753U (en) |
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2022
- 2022-09-13 CN CN202222410890.6U patent/CN218412753U/en active Active
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