CN219496556U - An on-line monitoring device for overhead lines in distribution network - Google Patents

Abstract

The utility model provides an on-line monitoring device for overhead lines in a distribution network, which includes a protective case, the inner wall of the protective case is respectively provided with a sensor, a processor, a current transformer and a fault detection unit, and the surfaces at both ends of the protective case are uniform. There are wire inlet holes, the surface of the processor is coated with heat dissipation silicon grease, the surface of the heat dissipation silicon grease is provided with heat dissipation fins, and the surface of the protective shell is provided with heat dissipation ports. The utility model has a reasonable structure. In summer, the heat is transferred to the heat dissipation fins through the heat dissipation silicon grease for heat dissipation treatment, and then the temperature of the inner wall of the protective shell is dissipated through the heat dissipation port. If the external environment is bad, the heat dissipation copper plate can be used The clamping bump is clamped into the clamping groove to fix it to the heat dissipation port, so as to avoid damage to the electrical components inside the protective shell due to external environmental factors, and the heat dissipation copper plate can also be used for heat conduction.

Description

An on-line monitoring device for overhead lines in distribution network

technical field

The utility model relates to the technical field of testing instruments, in particular to an on-line monitoring device for an overhead line of a distribution network.

Background technique

In my country's overhead distribution network system, overhead transmission lines are easily affected by factors such as lightning, man-made damage, and equipment failures. Faults such as grounding and short circuits cause large-scale power outages on the lines. The distribution network has long existed The characteristics of inaccurate judgment and low reliability of the fault indicator, especially the ground fault has been difficult to solve for a long time;

However, most of the detection instruments suitable for distribution network on the market are in summer. Due to the hot weather, the internal electrical components emit a large amount of heat, resulting in the problem that they cannot work normally. Therefore, a distribution network overhead line is proposed. Online monitoring device.

Utility model content

In view of this, the embodiment of the utility model hopes to provide an on-line monitoring device for overhead lines of a distribution network, so as to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial option.

The technical solution of the embodiment of the utility model is achieved as follows: an online monitoring device for overhead lines in a distribution network, including a protective shell, and the inner wall of the protective shell is respectively provided with a sensor, a processor, a current transformer and a fault detection unit, Both ends of the protective shell are provided with inlet holes;

The surface of the processor is coated with heat dissipation silicon grease, the surface of the heat dissipation silicon grease is provided with heat dissipation fins, and the surface of the protective shell is provided with a heat dissipation port.

The surfaces on both sides of the protective shell are fixedly connected with connecting plates, and several installation holes are opened on the surface of the connecting plates.

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 both ends of the heat dissipation copper plate are fixedly connected with clamping protrusions matching the clamping groove.

Preferably: an inlet hose is fixedly connected to the inner wall of the inlet hole.

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

Preferably: the sensor is a WENGLOR sensor.

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

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

Preferably: all four sides of the protective shell are chamfered.

The embodiment of the utility model has the following advantages due to the adoption of the above technical scheme:

The utility model has a reasonable structure. In summer, the heat is transferred to the heat dissipation fins through the heat dissipation silicon grease for heat dissipation treatment, and then the temperature of the inner wall of the protective shell is dissipated through the heat dissipation port. If the external environment is bad, the heat dissipation copper plate can be used The clamping bump is clamped into the clamping groove to fix it to the heat dissipation port, so as to avoid damage to the electrical components inside the protective shell due to external environmental factors, and the heat dissipation copper plate can also be used for heat conduction.

The above summary is for illustrative purposes 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 invention will be readily apparent by reference to the drawings and the following detailed description.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings that need to be used in the embodiments or technical descriptions. Obviously, the drawings in the following description are only For some embodiments of the present application, those of ordinary skill in the art can also obtain other drawings based on these drawings without creative effort.

Fig. 1 is a three-dimensional structure diagram one of the utility model;

Fig. 2 is the three-dimensional structural drawing two of the present utility model;

Fig. 3 is a schematic diagram of the workflow of the utility model.

Reference signs: 1. protective shell; 2. heat dissipation copper plate; 3. connection plate; 4. installation hole; 5. inlet hole; 6. inlet hose; 7. connection frame.

Detailed ways

In the following, only some exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive.

Embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1-3, the embodiment of the utility model provides an online monitoring device for overhead lines in a distribution network, including a protective case 1, and the inner wall of the protective case 1 is respectively equipped with a sensor, a processor, a current transformer and a fault detection device. Unit, the surface of both ends of the protective shell 1 is provided with inlet holes 5, the processor is a HJLS-Z processor, the sensor is a WENGLOR Wigler sensor, and the current transformer is a TA25E41-40A/3.5V distributed current transformer device;

The surface of the processor is coated with heat dissipation silicon grease, the surface of the heat dissipation silicon grease is provided with heat dissipation fins, and the surface of the protective shell 1 is provided with a heat dissipation port.

The surfaces on both sides of the protective shell 1 are fixedly connected with connecting plates 3, and the surface of the connecting plate 3 is provided with several mounting holes 4, through which steel wires pass through the mounting holes 4, so that the protective shell 1 is fixed on the external equipment, and the heat dissipation port The inner wall is provided with a clamping groove, and the inner surface of the heat dissipation port is provided with a heat dissipation copper plate 2, and both ends of the heat dissipation copper plate 2 are fixedly connected with clamping protrusions matching the clamping groove;

One end of the transmission line is connected to the line to be monitored, and the other end passes through the inlet hose 6 to enter the protective shell 1 and is electrically connected to the sensor. During operation, the electrical signal is transmitted to the current transformer through the sensor Carry out detection and analysis, and then feed back to the fault detection unit to detect whether the current is consistent with the preset data. If it is inconsistent, the fault information will be sent to the host computer through the processor, which is convenient for the staff to process in real time. In summer, through The heat dissipation silicone grease conducts the heat to the heat dissipation fins for heat dissipation treatment, and then dissipates the temperature of the inner wall of the protective shell 1 through the heat dissipation port. If the external environment is harsh, the heat dissipation copper plate 2 can be clamped to the clamping joint through the clamping bump In the groove, it can be fixed to the heat dissipation port to avoid damage to the electrical components inside the protective shell 1 due to external environmental factors, and the heat dissipation copper plate 2 can also be used for heat conduction.

In this embodiment, specifically: the inner wall of the inlet hole 5 is fixedly connected with the inlet hose 6, and the transmission line is protected through the inlet hose 6, and the surface of the bottom of the protective shell 1 is fixedly connected with a mutually symmetrical connection frame 7 , The four sides of the protective shell 1 are chamfered, and the connecting frame 7 is used to facilitate the device to be fixed on the external equipment.

When this application is working: S1, pass the steel wire through the installation hole 4, so that the protective shell 1 is fixed on the external equipment or the device is fixed on the external equipment through the connecting frame 7;

S2, one end of the transmission line is connected to the line to be monitored, the other end passes through the inlet hose 6 and enters the protective shell 1, and is electrically connected to the sensor. When working, the electrical signal is transmitted to the current mutual inductance through the sensor Detection and analysis in the device, and then fed back to the fault detection unit to detect whether the current is consistent with the preset data. If it is inconsistent, the fault information will be sent to the host computer through the processor, which is convenient for the staff to process in real time;

S3, in summer, the heat is transferred to the heat dissipation fins through the heat dissipation silicon grease for heat dissipation treatment, and then the temperature of the inner wall of the protective shell 1 is dissipated through the heat dissipation port. If the external environment is bad, the heat dissipation copper plate 2 can be clamped The connecting bump is clamped into the clamping groove to fix it to the heat dissipation port, so as to avoid damage to the electrical components inside the protective shell 1 due to external environmental factors, and the heat dissipation copper plate 2 can also be used for heat conduction.

The above is only a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any person familiar with the technical field can easily think of its various Any changes or replacements should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (8)

1. A distribution network overhead line online monitoring device, comprising a protective case (1), is characterized in that: the inner wall of the protective case (1) is respectively provided with a sensor, a processor, a current transformer and a fault detection unit, the The surfaces at both ends of the protective shell (1) are provided with inlet holes (5); The surface of the processor is coated with heat dissipation silicon grease, the surface of the heat dissipation silicon grease is provided with heat dissipation fins, and the surface of the protective shell (1) is provided with a heat dissipation port, Both sides of the protective case (1) are fixedly connected with connection plates (3), and the surface of the connection plate (3) is provided with several installation holes (4). 2. An on-line monitoring device for overhead lines in a distribution network according to claim 1, characterized in that: the inner wall of the heat dissipation port is provided with a clamping groove, and the inner surface of the heat dissipation port is provided with a heat dissipation copper plate (2) , the two ends of the heat dissipation copper plate (2) are fixedly connected with clamping projections matching the clamping slots. 3. The on-line monitoring device for overhead lines of distribution network according to claim 1, characterized in that: the inner wall of the inlet hole (5) is fixedly connected with an inlet hose (6). 4. An on-line monitoring device for overhead lines in a distribution network according to claim 1, characterized in that: the processor is a HJLS-Z processor. 5. An online monitoring device for overhead lines in distribution network according to claim 1, characterized in that: the sensor is a WENGLOR sensor. 6. An online monitoring device for overhead lines in a distribution network according to claim 1, wherein the current transformer is a TA25E41-40A/3.5V distributed current transformer. 7. The on-line monitoring device for overhead lines in a distribution network according to claim 1, characterized in that: the surface of the bottom of the protective case (1) is fixedly connected with mutually symmetrical connection frames (7). 8. The on-line monitoring device for overhead lines in distribution network according to claim 1, characterized in that: the four sides of the protective case (1) are all chamfered.