CN219496556U

CN219496556U - Online monitoring device for overhead line of power distribution network

Info

Publication number: CN219496556U
Application number: CN202223227538.5U
Authority: CN
Inventors: 王雅欣; 熊天哲; 万敏; 费敏
Original assignee: Wuhan Hanzhen Jiji Electric Power Equipment Co ltd
Current assignee: Wuhan Hanzhen Jiji Electric Power Equipment Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-08-08
Anticipated expiration: 2032-12-01

Abstract

The utility model provides an on-line monitoring device for an overhead line of a power distribution network, which comprises a protective shell, wherein a sensor, a processor, a current transformer and a fault detection unit are respectively arranged on the inner wall of the protective shell, wire inlet holes are formed in the surfaces of two ends of the protective shell, heat dissipation silicone grease is coated on the surface of the processor, heat dissipation fins are arranged on the surface of the heat dissipation silicone grease, and a heat dissipation port is formed in the surface of the protective shell. The heat radiation copper plate is clamped into the clamping groove through the clamping convex blocks to fix the heat radiation copper plate to the heat radiation opening, so that the damage of electric elements in the protective shell caused by the factors of external environment is avoided, and the heat radiation copper plate can be used for heat conduction.

Description

Online monitoring device for overhead line of power distribution network

Technical Field

The utility model relates to the technical field of test instruments, in particular to an online monitoring device for overhead lines of a power distribution network.

Background

In an overhead power distribution network system in China, an overhead power transmission line is easily affected by lightning, artificial damage, equipment faults and other factors, and faults such as grounding, short circuit and the like occur to cause large-area power failure of the line, so that the power distribution network has the characteristics of inaccurate judgment and low reliability of a fault indicator for a long time, and particularly the grounding faults are difficult to solve for a long time;

most of detection instruments suitable for power distribution networks in the market emit a large amount of heat due to hot weather in summer, so that the problem that the power distribution networks cannot work normally is solved.

Disclosure of Invention

In view of the foregoing, it is desirable to provide an online monitoring device for an overhead line of a power distribution network, so as to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial choice.

The technical scheme of the embodiment of the utility model is realized as follows: the utility model provides an overhead line on-line monitoring device of distribution network, includes the protecting crust, the inner wall of protecting crust is equipped with sensor, treater, current transformer and fault detection unit respectively, the inlet wire hole has all been seted up on the surface at protecting crust both ends;

the surface of the processor is coated with heat dissipation silicone grease, the surface of the heat dissipation silicone grease is provided with heat dissipation fins, the surface of the protective shell is provided with heat dissipation ports,

the surface of protecting crust both sides all fixedly connected with connecting plate, a plurality of mounting hole has been seted up to the surface of connecting plate.

Preferably: the inner wall of the heat dissipation port is provided with a clamping groove, the inner surface of the heat dissipation port is provided with a heat dissipation copper plate, and two ends of the heat dissipation copper plate are fixedly connected with clamping convex blocks matched with the clamping groove.

Preferably: and the inner wall of the wire inlet hole is fixedly connected with a wire inlet hose.

Preferably: the processor is an HJLS-Z type processor.

Preferably: the sensor is a WENGLOR wagler type sensor.

Preferably: the current transformer is a TA25E41-40A/3.5V type distributed current transformer.

Preferably: the surface of the bottom of the protective shell is fixedly connected with mutually symmetrical connecting frames.

Preferably: and chamfering four sides of the protective shell.

By adopting the technical scheme, the embodiment of the utility model has the following advantages:

the heat radiation copper plate is clamped into the clamping groove through the clamping convex blocks to fix the heat radiation copper plate to the heat radiation opening, so that the damage of electric elements in the protective shell caused by the factors of external environment is avoided, and the heat radiation copper plate can be used for heat conduction.

The foregoing summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present utility model will become apparent by reference to the drawings and the following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a first perspective view of the present utility model;

FIG. 2 is a second perspective view of the present utility model;

fig. 3 is a schematic of the workflow of the present utility model.

Reference numerals: 1. a protective shell; 2. a heat-dissipating copper plate; 3. a connecting plate; 4. a mounting hole; 5. a wire inlet hole; 6. a wire inlet hose; 7. and connecting the frames.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-3, the embodiment of the utility model provides an online monitoring device for an overhead line of a power distribution network, which comprises a protective shell 1, wherein the inner wall of the protective shell 1 is respectively provided with a sensor, a processor, a current transformer and a fault detection unit, the surfaces of two ends of the protective shell 1 are provided with wire inlet holes 5, the processor is an HJLS-Z type processor, the sensor is a WENGLOR wagler type sensor, and the current transformer is a TA25E41-40A/3.5V type distributed current transformer;

the surface of the processor is coated with heat dissipation silicone grease, the surface of the heat dissipation silicone grease is provided with heat dissipation fins, the surface of the protective shell 1 is provided with heat dissipation ports,

the surfaces of two sides of the protective shell 1 are fixedly connected with connecting plates 3, a plurality of mounting holes 4 are formed in the surfaces of the connecting plates 3, the protective shell 1 is fixed on external equipment through steel wires penetrating through the mounting holes 4, clamping grooves are formed in the inner walls of the heat dissipation openings, heat dissipation copper plates 2 are arranged on the inner surfaces of the heat dissipation openings, and clamping convex blocks matched with the clamping grooves are fixedly connected to two ends of the heat dissipation copper plates 2;

one end of the transmission line is connected with a line to be monitored, the other end of the transmission line passes through the incoming line hose 6 and enters the protective shell 1 and is electrically connected with the sensor, in the process of working, an electric signal is transmitted to the current transformer through the sensor to be detected and analyzed, and then the electric signal is fed back to a fault detection unit to be detected whether the current is consistent with preset data, when the electric signal is inconsistent with the preset data, fault information is sent to an upper computer through a processor, so that a worker can conveniently conduct real-time processing, when summer, heat is conducted to the radiating fins through the heat dissipation silicone grease, the heat is conducted to conduct heat dissipation processing, and then the temperature of the inner wall of the protective shell 1 is conducted to dissipate through the heat dissipation port, when the external environment is bad, the heat dissipation copper plate 2 can be fastened to the heat dissipation port through the fastening protruding blocks, the heat dissipation copper plate 2 is prevented from being damaged by electric elements inside the protective shell 1 due to factors of the external environment, and meanwhile the heat dissipation copper plate 2 can be used for conducting heat.

In this embodiment, specific: the inner wall fixedly connected with inlet wire hose 6 of inlet wire hole 5 protects transmission line through inlet wire hose 6, and the fixed surface of protecting crust 1 bottom is connected with the connecting frame 7 of mutual symmetry, and the equal chamfer in four sides of protecting crust 1 is handled, is convenient for install and fixes on external equipment through connecting frame 7.

The application works: s1, enabling the protective shell 1 to be fixed on external equipment or facilitating the device to be fixed on the external equipment through the connecting frame 7 by enabling the steel wire to pass through the mounting hole 4;

s2, one end of a transmission line is connected with a line to be monitored, the other end of the transmission line passes through a wire inlet hose 6 and enters the protective shell 1 and is electrically connected with a sensor, when the device works, an electric signal is transmitted to a current transformer through the sensor to carry out detection analysis, and then the electric signal is fed back to a fault detection unit to carry out detection whether current is consistent with preset data, and when the electric signal is inconsistent with the preset data, fault information is sent to an upper computer through a processor, so that a worker can conveniently carry out real-time processing;

s3, when in summer, heat is conducted to the heat radiating fins through the heat radiating silicone grease, and then the temperature of the inner wall of the protective shell 1 is radiated through the heat radiating opening, for example, when the external environment is severe, the heat radiating copper plate 2 can be clamped into the clamping groove through the clamping convex blocks, so that the heat radiating copper plate is fixed to the heat radiating opening, the damage to electric elements in the protective shell 1 caused by the factors of the external environment is avoided, and meanwhile, the heat radiating copper plate 2 can also be used for heat conduction.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that various changes and substitutions are possible within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The utility model provides an online monitoring device of distribution network overhead line, includes protecting crust (1), its characterized in that: the inner wall of the protective shell (1) is respectively provided with a sensor, a processor, a current transformer and a fault detection unit, and the surfaces of the two ends of the protective shell (1) are provided with wire inlet holes (5);

the surface of the processor is coated with heat dissipation silicone grease, the surface of the heat dissipation silicone grease is provided with heat dissipation fins, the surface of the protective shell (1) is provided with heat dissipation openings,

the surface of protecting crust (1) both sides all fixedly connected with connecting plate (3), a plurality of mounting hole (4) have been seted up on the surface of connecting plate (3).

2. The distribution network overhead line on-line monitoring device according to claim 1, wherein: the inner wall of the heat dissipation port is provided with a clamping groove, the inner surface of the heat dissipation port is provided with a heat dissipation copper plate (2), and two ends of the heat dissipation copper plate (2) are fixedly connected with clamping convex blocks matched with the clamping groove.

3. The distribution network overhead line on-line monitoring device according to claim 1, wherein: the inner wall of the wire inlet hole (5) is fixedly connected with a wire inlet hose (6).

4. The distribution network overhead line on-line monitoring device according to claim 1, wherein: the processor is an HJLS-Z type processor.

5. The distribution network overhead line on-line monitoring device according to claim 1, wherein: the sensor is a WENGLOR wagler type sensor.

6. The distribution network overhead line on-line monitoring device according to claim 1, wherein: the current transformer is a TA25E41-40A/3.5V type distributed current transformer.

7. The distribution network overhead line on-line monitoring device according to claim 1, wherein: the surface of the bottom of the protective shell (1) is fixedly connected with mutually symmetrical connecting frames (7).

8. The distribution network overhead line on-line monitoring device according to claim 1, wherein: four sides of the protective shell (1) are subjected to chamfering treatment.