CN216595362U

CN216595362U - Portable distribution network maintenance, power restoration, check and fault detection and search device

Info

Publication number: CN216595362U
Application number: CN202122882261.9U
Authority: CN
Inventors: 张鹏; 陆安志; 尹照宏
Original assignee: Zhaotong Power Supply Bureau of Yunnan Power Grid Co Ltd
Current assignee: Zhaotong Power Supply Bureau of Yunnan Power Grid Co Ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-05-24
Anticipated expiration: 2031-11-23

Abstract

The utility model discloses a portable distribution network overhaul, power restoration, check and fault detection and search device, which comprises a shell and a control terminal, wherein the control terminal is arranged in an inner cavity of the shell; the heat dissipation mechanism comprises an air inlet pipe, a direct current fan, a dust screen and a filter screen, wherein the direct current fan is arranged on the right side of the bottom of the inner cavity of the shell, the direct current fan is arranged in the inner cavity of the air inlet pipe, the dust screen is arranged on the right side of the inner cavity of the direct current fan, and the filter screen is arranged on the left side of the shell. The utility model has novel structure and reasonable layout, effectively integrates all components, has ingenious design of the positions of all components, skillfully integrates different components, is convenient to carry, and is convenient for operators to check and find faults.

Description

Portable distribution network maintenance, power restoration, check and fault detection and search device

Technical Field

The utility model relates to the technical field of 10kv distribution networks, in particular to a portable distribution network overhaul, power restoration, check and fault detection and search device.

Background

The distribution network frame is a power network which receives electric energy from a power transmission network or a regional power plant, distributes the electric energy to various users on site through distribution facilities or distributes the electric energy to various users step by step according to voltage, and consists of overhead lines, cables, towers, distribution transformers, isolating switches, reactive compensators, auxiliary facilities and the like, the network plays a role of distributing the electric energy in the power network, the existing integral 10kV network frame structure is weak, line faults trip frequently along with the increase of service life, the reasons of the faults are difficult to find, the conditions of long fault processing period and the like also influence the reliability of power supply and the satisfaction of the users, although partial non-fault sections can be eliminated along with the popularization of distribution network automation, the searched and recovered power supply efficiency of the faults is too low, the reliability index of the fault power failure is seriously influenced, and the number of branch devices of lines in showtow regions is large, the terrain is complex, the method is characterized in that the traditional methods of stay wire trial delivery, insulation test, step-by-step search and the like are used, time and labor are wasted, the reasons of fault occurrence are often hidden and difficult to search, the fault processing period is long, the efficiency of the location of the fault of the line is improved, the power supply reliability is improved, then, after the fault is repaired, whether the line has a power transmission condition or not can be judged only by scheduling and forcibly delivering the line, but according to the regulation, the scheduling only gives a forced delivery opportunity, namely the power grid operation risk and the personnel safety risk are increased, the power supply reliability and the user satisfaction are also influenced, and how to enable the distribution network maintenance and restoration check and the fault detection and search process to be more rapid and convenient on the basis of the existing distribution network maintenance and restoration check and fault detection and search method, and the method is worthy of research.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the utility model.

The present invention has been made keeping in mind the above and/or other problems occurring in the prior art.

Therefore, the problem to be solved by the utility model is that the existing integral 10kV grid structure is weak, the line fault trips frequently along with the increase of service life, the power supply reliability and the user satisfaction are affected by the conditions of difficult finding of the fault occurrence reason, long fault processing period and the like, although part of non-fault sections can be eliminated along with the popularization of distribution network automation, the fault finding and power supply recovery efficiency is too low, the fault and power failure reliability index is seriously affected, the number of line branch devices in showtime areas is large, the terrain is complex, the time and labor are wasted by using the traditional methods of pull wire trial sending, insulation testing, step-by-step finding and the like, the fault occurrence reason is hidden and difficult to find, the fault processing period is long, the power supply reliability is greatly improved in the aspect of improving the line fault finding efficiency, and after the fault is repaired, whether the line has a power transmission condition or not can be judged only after the line is forcibly transmitted through scheduling, but according to the regulation, the scheduling only gives a forced transmission opportunity once, namely, the operation risk and the personnel safety risk of a power grid are increased, and the reliability of power supply and the user satisfaction are also influenced.

In order to solve the technical problems, the utility model provides the following technical scheme: a portable 10kv distribution network overhaul, restoration and check and fault detection and search integrated device comprises,

the protection device comprises a shell and a control terminal arranged in an inner cavity of the shell, wherein the control terminal comprises a fault type judgment and direct current trial delivery module and a fault distance test module; and the number of the first and second groups,

the heat dissipation mechanism comprises an air inlet pipe, a direct current fan, a dust screen and a filter screen, wherein the direct current fan is arranged on the right side of the bottom of the inner cavity of the shell, the direct current fan is arranged in the inner cavity of the air inlet pipe, the dust screen is arranged on the right side of the inner cavity of the direct current fan, and the filter screen is arranged on the left side of the shell.

As a preferred scheme of the portable 10kv distribution network overhaul, restoration and check and fault detection and search integrated device, the utility model comprises the following steps: the control terminal further comprises a liquid crystal display screen, a lithium battery and a power supply, wherein the lithium battery is arranged on the rear side of the top of the control terminal, and the lithium battery is arranged at the bottom of the inner cavity of the shell.

As a preferred scheme of the portable 10kv distribution network overhaul, restoration and check and fault detection and search integrated device, the utility model comprises the following steps: the control terminal also comprises a microcomputer control module and is matched with the control terminal.

As a preferred scheme of the portable 10kv distribution network overhaul, restoration and check and fault detection and search integrated device, the utility model comprises the following steps: the protection device further comprises a cover plate and is arranged at the top of the shell.

As a preferred scheme of the portable 10kv distribution network overhaul, restoration and check and fault detection and search integrated device, the utility model comprises the following steps: the rear side of the top of the shell is movably connected with the cover plate through a rotating shaft.

As a preferred scheme of the portable 10kv distribution network overhaul, restoration and check and fault detection and search integrated device, the utility model comprises the following steps: the protection device further comprises a protection pad and is arranged at the bottom of the cover plate.

As a preferred scheme of the portable 10kv distribution network overhaul, restoration and check and fault detection and search integrated device, the utility model comprises the following steps: the bottom of the protection pad is in contact with the control terminal and is matched with the cover plate.

As a preferred scheme of the portable 10kv distribution network overhaul, restoration and check and fault detection and search integrated device, the utility model comprises the following steps: the output end of the lithium battery is electrically connected with the control terminal and the input end of the direct current fan respectively.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model has novel structure and skillful design of the positions of all components, skillfully integrates different components, is convenient to carry, and is convenient for operators to check and find faults.

2. The heat dissipation mechanism is reasonable in design, and is used for dissipating heat inside the shell in a limited space, so that electrical elements inside the shell can normally operate, and the problem of heat dissipation of equipment is effectively solved.

3. The portable power line fault detection and diagnosis device is light and handy as a whole, can improve the analysis and judgment capacity of inspection personnel on fault lines, improve the line fault detection and fault finding efficiency, reduce the labor intensity of the line fault inspection personnel, and is beneficial to improving the power supply reliability and the economic benefit of power enterprises.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

FIG. 1 is a structural view of the apparatus of the present embodiment;

FIG. 2 is a closed configuration view of the cover and housing of the device of this embodiment;

FIG. 3 is a front view of a partial cross-sectional structure of the housing of the device according to the present embodiment;

fig. 4 is a front view of a partial cross-sectional structure of an air inlet duct of the apparatus of this embodiment.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1, 3 and 4, the embodiment provides a portable 10kv distribution network overhaul, restoration and fault detection and search integrated device, and the portable 10kv distribution network overhaul, restoration and fault detection and search integrated device comprises a protection device 100, a shell 101 and a control terminal 102 arranged in an inner cavity of the shell 101, wherein the control terminal 102 comprises a fault type judgment and direct current trial transmission module and a fault distance test module.

The heat dissipation mechanism 200 comprises an air inlet pipe 201, a direct current fan 202 arranged at the right side of the bottom of an inner cavity of a shell 101, a dust screen 203 arranged at the right side of the inner cavity of the direct current fan 202, and a filter screen 204 arranged at the left side of the shell 101, and by arranging a control terminal 102, the analysis and judgment capability of a patrol worker on a fault line can be improved, the line fault detection and fault finding efficiency can be improved, the labor intensity of the line fault patrol worker can be reduced, the power supply reliability and the economic benefit of a power enterprise can be improved, by arranging a fault type judgment and direct current trial transmission module, the application of 10kv direct current voltage to the fault line can be realized, based on the existing method in the field, the parameters of the line, such as the insulation resistance value, the absorption ratio, the polarization index and the like, the line fault type can be judged by the existing algorithm, and after the maintenance is completed, whether the line has the condition power transmission can be judged by the parameters, through setting up the fault distance test module, the accessible adopts high-speed data sampling technique, through two kinds of current test methods of low pressure pulse method and flashover method, can test all kinds of circuit faults, and the accurate distance of finding the fault point to the test point, through setting up heat dissipation mechanism 200 for dispel the heat to the inside of shell 101 to this makes the electrical components inside shell 101 can normally operate.

When the device is used, firstly, a fault type judgment and direct current trial transmission module of the control terminal 102 is set, 10kv direct current voltage is applied to a fault line, parameters such as the insulation resistance value, the absorption ratio and the polarization index of the line are measured, the fault type of the line is judged through a specific algorithm, after the maintenance is finished, whether the line has a power transmission condition is judged through the parameters, and then a fault distance test module is involved, so that the device can test various line faults by adopting a high-speed data sampling technology through the module and two test methods, namely a low-voltage pulse method and a flashover method, and accurately measure the distance from a fault point to a test point.

When heat dissipation needs to be performed on the inside of the casing 101, the external controller starts the dc fan 202, the dc fan 202 sends outside air to the inside of the casing 101 through the air inlet pipe 201 and the dust screen 203 after filtering, and then the air inside the casing 101 is discharged through the filter screen 204, so as to perform circulation cooling on the inside of the casing 101, and further enable the electric components inside the casing 101 to operate normally.

Example 2

Referring to fig. 1 to 4, the present embodiment is based on the previous embodiment:

preferably, the control terminal 102 further comprises a liquid crystal display screen, a rear side arranged at the top of the control terminal 102, and a lithium battery 205 arranged at the bottom of the inner cavity of the casing 101, through the arrangement of the liquid crystal display screen, the test result can be automatically displayed on the large-screen liquid crystal display screen in a waveform and data manner, the fault judgment is intuitive, and the full Chinese menu display operation function is provided, so that the operator does not need to be specially trained.

Preferably, the control terminal 102 further comprises a microcomputer control module, the microcomputer control module is matched with the control terminal 102, a nonvolatile device can be selected by arranging the computer control module, the anti-interference capability is strong, the intelligent instrument is suitable for measurement in a strong electromagnetic interference environment, the performance is stable, the comprehensive and complete protection function is achieved, the working reliability is high, and the intelligent instrument belongs to an intelligent instrument.

Example 3

Referring to fig. 1 and 3, a third embodiment of the present invention is based on the first two embodiments:

specifically, the protection device 100 further includes a cover plate 103 disposed on the top of the housing 101.

Specifically, the rear side of the top of the housing 101 is movably connected to the cover plate 103 through a rotating shaft.

Preferably, the protection device 100 further comprises a protection pad 104 disposed at the bottom of the cover plate 103, and the cover plate 103 and the protection pad 104 are configured to cooperate with the housing 101 to seal the control terminal 102, so as to improve the protection capability of the control terminal 102.

Preferably, the bottom of the protection pad 104 contacts the control terminal 102 and cooperates with the cover plate 103.

Preferably, the output terminal of the lithium battery 205 is electrically connected to the control terminal 102 and the input terminal of the dc fan 202.

When the device is used, when the device needs to be carried, the cover plate 103 is closed with the shell 101, the bottom of the protection pad 104 is contacted with the control terminal 102 at the moment, the control terminal 102 is further protected, then the shell 101 and the cover plate 103 are fixed, and finally the device is taken up through a handle on the front side of the device.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. The utility model provides a portable net of joining in marriage overhauls check and fault detection seeking device that reply electricity, its characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the protection device (100) comprises a shell (101) and a control terminal (102) arranged in an inner cavity of the shell (101);

heat dissipation mechanism (200), including air-supply line (201), set up in the right side of shell (101) inner chamber bottom, set up in direct current fan (202) of air-supply line (201) inner chamber, set up in dust screen (203) on direct current fan (202) inner chamber right side, and set up in filter screen (204) on shell (101) left side.

2. The apparatus of claim 1, wherein: the control terminal (102) further comprises a liquid crystal display screen, a rear side arranged at the top of the control terminal (102), and a lithium battery (205) arranged at the bottom of the inner cavity of the shell (101).

3. The apparatus of any of claims 1-2, wherein: the control terminal (102) further comprises a microcomputer control module, and the microcomputer control module is matched with the control terminal (102).

4. The apparatus of claim 3, wherein: the protection device (100) further comprises a cover plate (103) arranged at the top of the shell (101).

5. The apparatus of claim 4, wherein: the rear side of the top of the shell (101) is movably connected with the cover plate (103) through a rotating shaft.

6. The apparatus of claim 4, wherein: the protection device (100) further comprises a protection pad (104) arranged at the bottom of the cover plate (103).

7. The apparatus of claim 6, wherein: the bottom of the protective pad (104) is in contact with a control terminal (102) and cooperates with the cover plate (103).

8. The apparatus of claim 2, wherein: the output end of the lithium battery (205) is respectively connected with the control terminal (102) and the input end of the direct current fan (202).