CN219266448U

CN219266448U - High-voltage cable sheath circulation on-line monitoring terminal

Info

Publication number: CN219266448U
Application number: CN202223237830.5U
Authority: CN
Inventors: 贾煜晗; 黎斌; 程兴胜; 王惠霞; 贾刚
Original assignee: Xi'an Rich Electrical Co ltd
Current assignee: Xi'an Rich Electrical Co ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-06-27
Anticipated expiration: 2032-12-02

Abstract

The utility model discloses a high-voltage cable sheath circulation on-line monitoring terminal, which relates to the technical field of power cables and circulation monitoring and comprises a composite cable, wherein an open-close type current transformer is sleeved on the surface of the composite cable, the open-close type current transformer is electrically connected with data processing transmission equipment, and the data processing transmission equipment is in communication connection with a server; the open-close type current transformer comprises a first clamping ring and a second clamping ring, wherein one sides of the first clamping ring and the second clamping ring are fixedly connected with hinges, the other sides of the first clamping ring and the second clamping ring are fixedly connected with connecting fixing buckles, and one end of the first clamping ring is fixedly connected with an output end; the data processing transmission equipment comprises a shell, wherein fixing plates are fixedly connected to two sides of the shell, real-time online detection can be effectively carried out on circulation of the high-voltage cable sheath, and the data processing transmission equipment has important significance for realizing safe operation of a power system and further has important significance for economic development and social stability.

Description

High-voltage cable sheath circulation on-line monitoring terminal

Technical Field

The utility model relates to the technical field of power cables and loop current monitoring, in particular to a high-voltage cable sheath loop current on-line monitoring terminal.

Background

The crosslinked polyethylene (XLPE) cable has the advantages of good insulating property, easy manufacture, convenient installation, safe and reliable power supply, contribution to beautifying cities and the like, and is rapidly developed in more than 50 years since the early generation of 60 years. Oil-impregnated paper insulated cables are almost replaced in the medium and low voltage field and have been used in high voltage classes. XLPE power cables are used for power transmission and distribution in urban power networks in China in large numbers in recent decades. However, in the insulation structure of such a cable, there are often air gaps and harmful impurities due to difficulty in processing technology or impure raw materials, or there are gaps between insulation and semiconductive shielding layers or protruding semiconductive bodies toward the insulation layers due to process reasons, partial Discharge (PD) is extremely easily generated at the tips of the air gaps and impurities, and various insulation defects may be generated during installation and operation of the power cable to cause partial discharge. Because of poor discharge resistance of extrusion molding type insulating materials such as XLPE, the continuous aging of the insulating materials finally leads to insulation breakdown under the long-term action of partial discharge, and serious accidents are caused.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the high-voltage cable sheath circulation on-line monitoring terminal, which solves the problems proposed by the background art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the high-voltage cable sheath circulation on-line monitoring terminal comprises a composite cable, wherein an open-close type current transformer is sleeved on the surface of the composite cable, the open-close type current transformer is electrically connected with data processing transmission equipment, and the data processing transmission equipment is in communication connection with a server;

the open-close type current transformer comprises a first clamping ring and a second clamping ring, wherein one sides of the first clamping ring and the second clamping ring are fixedly connected with hinges, the other sides of the first clamping ring and the second clamping ring are fixedly connected with connecting fixing buckles, and one end of the first clamping ring is fixedly connected with an output end;

the data processing transmission equipment comprises a shell, fixing plates are fixedly connected to two sides of the shell, connecting joints are fixedly connected to the periphery of the shell, and a processor, a data acquisition unit, a data storage unit and a communication unit are fixedly arranged in the shell.

Preferably, the composite cable is formed by combining a plurality of groups of high-voltage cables.

Preferably, the first clamping ring and the second clamping ring are opened and clamped on the surface of the composite cable and are connected and fixed by the connecting and fixing buckle.

Preferably, the open-close type current transformer is electrically connected with the data processing and transmitting equipment through the output end by a lead.

Preferably, the connecting joint is provided with two groups on one side, and eight groups are provided altogether, and the connecting joint is electrically connected with the data acquisition unit.

Preferably, the communication unit adopts a mode of wireless communication such as a fiber local area network or through WIFI and G.

Advantageous effects

The utility model provides an online monitoring terminal for high-voltage cable sheath circulation. Compared with the prior art, the method has the following beneficial effects:

1. this high tension cable sheath circulation on-line monitoring terminal through the data processing transmission equipment who sets up, can effectually handle the data that open-close type current transformer received to send to the server through communication unit, send the collection command by data server, set up various indexes, the discharge signal of each point is gathered in succession, and the data that is returned through communication unit by each measuring point is received. Then analyzing on the data server, and transmitting to the central database after calculation, thereby improving the detection efficiency.

2. The high-voltage cable sheath circulation on-line monitoring terminal can effectively conduct real-time on-line detection on the high-voltage cable sheath circulation, and has important significance for realizing safe operation of a power system, economic development and social stability.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of an open-close type current transformer according to the present utility model;

FIG. 3 is a schematic diagram of a data processing and transmitting device according to the present utility model;

fig. 4 is a schematic diagram of the internal structure of the data processing and transmitting device according to the present utility model.

In the figure:

1. a composite cable; 2. an open-close type current transformer; 21. a first clamping ring; 22. a second clamping ring; 23. a hinge; 24. connecting and fixing the buckle; 25. an output end; 3. a data processing transmission device; 31. a housing; 32. a fixing plate; 33. a connection joint; 34. a processor; 35. a data acquisition unit; 36. a data storage unit; 37. a communication unit; 4. and a server.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides the following technical solutions: the high-voltage cable sheath circulation on-line monitoring terminal comprises a composite cable 1, wherein an open-close type current transformer 2 is sleeved on the surface of the composite cable 1, the open-close type current transformer 2 is electrically connected with a data processing transmission device 3, and the data processing transmission device 3 is in communication connection with a server 4;

preferably, the composite cable 1 is formed by combining a plurality of groups of high-voltage cables.

According to the embodiment shown in fig. 2, the open-close type current transformer 2 comprises a first clamping ring 21 and a second clamping ring 22, wherein one side of the first clamping ring 21 and one side of the second clamping ring 22 are fixedly connected with a hinge 23, the other side of the first clamping ring 21 and the other side of the second clamping ring 22 are fixedly connected with a connecting and fixing buckle 24, and one end of the first clamping ring 21 is fixedly connected with an output end 25;

preferably, the first clamping ring 21 and the second clamping ring 22 are opened and clamped on the surface of the composite cable 1, and are connected and fixed by the connecting and fixing buckle 24.

Preferably, the open-close type current transformer 2 is electrically connected with the data processing and transmitting device 3 through an output end 25 by a wire.

According to the embodiment shown in fig. 3 and 4, the data processing and transmitting device 3 includes a housing 31, two sides of the housing 31 are fixedly connected with a fixing plate 32, four sides of the housing 31 are fixedly connected with a connecting joint 33, and a processor 34, a data acquisition unit 35, a data storage unit 36 and a communication unit 37 are fixedly installed in the housing 31.

Preferably, two sets of connection joints 33 are disposed at one side, and eight sets of connection joints 33 are disposed at the other side, and the connection joints 33 are electrically connected with the data acquisition unit 35.

Preferably, the communication unit 37 adopts a wireless communication mode such as a fiber local area network or WIFI and 4G.

During operation, the open-close type current transformers 2 are opened through the first clamping ring 21 and the second clamping ring 22 and are sleeved on the surface of the composite cable 1, the open-close type current transformers 2 are fixed through the connecting fixing buckles 24 and are distributed in a networking mode, one open-close type current transformer 2 is placed at each group of composite cable 1 connectors, in order to ensure smooth transmission and accurate analysis of partial discharge signals, a single circulation monitoring device can be connected with three-channel circulation monitoring data, and when the data processing transmission equipment 3 is installed, the data processing transmission equipment 3 can be installed in a terminal cabinet near a measuring point or a self-standing outdoor terminal box, and because the environment is severe, a waterproof box needs to be additionally arranged. The shell of the detection device is made of stainless steel, and is better in high-frequency and power frequency shielding. Because the outdoor installation needs to be installed in the waterproof box body, the waterproof grade is IP68, and the working temperature range is as follows: -45 ℃ to 75 ℃;

in the using process, the current data generated by the composite cable 1 is received by the open-close type current transformer 2, and is electrically connected with the connection joint 33 of the data processing transmission device 3 through the output end 25 by a lead, and is collected by the internal data collection unit 35, and is subjected to data processing by the processor 34 after the collection is completed, and is stored by the data storage unit 36, and finally is sent to the server 4 through the communication unit 37, the data server 4 sends a collection command, sets various indexes, sequentially collects discharge signals of various points, and receives data transmitted back by various measurement points through the communication unit 37. Then, analysis is carried out on the data server 4, and the calculated data are transmitted to a central database, so that the detection efficiency is improved.

And all that is not described in detail in this specification is well known to those skilled in the art.

Claims

1. High tension cable sheath circulation on-line monitoring terminal, including composite cable (1), its characterized in that: the surface of the composite cable (1) is sleeved with an open-close type current transformer (2), the open-close type current transformer (2) is electrically connected with a data processing transmission device (3), and the data processing transmission device (3) is in communication connection with a server (4);

the open-close type current transformer (2) comprises a first clamping ring (21) and a second clamping ring (22), a hinge (23) is fixedly connected to one side of the first clamping ring (21) and one side of the second clamping ring (22), a connecting and fixing buckle (24) is fixedly connected to the other side of the first clamping ring (21) and the other side of the second clamping ring (22), and an output end (25) is fixedly connected to one end of the first clamping ring (21);

the data processing transmission equipment (3) comprises a shell (31), fixing plates (32) are fixedly connected to two sides of the shell (31), connecting joints (33) are fixedly connected to the periphery of the shell (31), and a processor (34), a data acquisition unit (35), a data storage unit (36) and a communication unit (37) are fixedly arranged in the shell (31).

2. The high voltage cable sheath circulation on-line monitoring terminal according to claim 1, wherein: the composite cable (1) is formed by combining a plurality of groups of high-voltage cables.

3. The high voltage cable sheath circulation on-line monitoring terminal according to claim 1, wherein: the first clamping ring (21) and the second clamping ring (22) are opened and clamped on the surface of the composite cable (1) and are connected and fixed by the connecting and fixing buckle (24).

4. The high voltage cable sheath circulation on-line monitoring terminal according to claim 1, wherein: the open-close type current transformer (2) is electrically connected with the data processing and transmitting equipment (3) through an output end (25) by a lead.

5. The high voltage cable sheath circulation on-line monitoring terminal according to claim 1, wherein: the connecting joint (33) is arranged at one side and is provided with two groups, and eight groups are arranged in total, and the connecting joint (33) is electrically connected with the data acquisition unit (35).

6. The high voltage cable sheath circulation on-line monitoring terminal according to claim 1, wherein: the communication unit (37) adopts a mode of optical fiber local area network or wireless communication through WIFI and 4G.