CN220367401U - Line loss detection device - Google Patents

Abstract

The utility model relates to the technical field of power grid maintenance, and discloses a line loss detection device which comprises a detection table, a detection mechanism, a limiting mechanism and a winding mechanism, wherein an insulating support is fixedly arranged in the middle of the detection table; this device lets in the electric current through the transmission line to the stand-by line broken part laminating can make the electric current transmit when passing through the stand-by line, makes the detection lamp electric current unstable and leads to the scintillation, makes things convenient for the staff to judge fast and detects the damage, stretches out after detecting the lamp scintillation and detects the damage through electric telescopic handle and drives the sign part and descend and make the mark on the stand-by line, does not influence detection efficiency simultaneously.

Description

A line loss detection device

Technical field

The utility model relates to the technical field of power grid operation and maintenance, and in particular to a line loss detection device.

Background technique

The power loss of the distribution network is not only related to the structure and load properties of the power grid, but also to the operation, maintenance and management level of the system.

In the line loss management of power supply stations, management line loss is an important factor affecting the statistical line loss; because this loss has no rules to follow and is difficult to measure, it is often called unknown loss. The power loss caused by inadequate management accounts for a large proportion of the actual line loss, and in some occasions and some links, it is even quite serious. Through line loss analysis, we can have an in-depth understanding of the cause, nature, proportion of each component and other factors of the unit's line loss, find out the main factors affecting the loss, and take corresponding measures in a targeted manner to achieve greater results with less investment. Greater loss reduction effect and economic benefits.

In the existing fault detection device for line loss management, the line to be tested needs to be pulled and moved by the staff during detection, which results in the line to be tested not being able to move at a uniform speed for detection, which easily affects the detection effect; the detection component cannot detect damage after it is detected. Prompt prompts make it difficult for staff to quickly determine whether damage is detected; in addition, the positional movement of relevant components during the detection process also makes it difficult for staff to accurately find the measured damage location.

Utility model content

The purpose of this utility model is to provide a line loss detection device whose detection operation is simple, stable and reliable, enabling workers to obtain detection results in time and accurately find the location of damage.

In order to achieve the above purpose, the utility model provides a line loss detection device, which includes a detection platform and a detection mechanism, a limiting mechanism and a winding mechanism arranged on the detection platform;

The detection mechanism includes an insulating bracket fixed on the detection platform. The insulating bracket is fixed with a detection tube. A conductive tube is coaxially fixed in the detection tube; one side of the conductive tube is electrically connected to a transmission line. , the other side is electrically connected to one end of the wire; above the insulating bracket is also provided a detection light that emits a signal when the conductive tube detects leakage current, and a marking component driven by an electric telescopic rod; the other end of the wire Electrically connected to the detection lamp, when the conductive tube detects leakage current, the electric telescopic rod drives the marking component to move to a predetermined position;

The two limiting mechanisms are respectively provided on both sides of the detection mechanism and are used to maintain the position of the line to be measured in the conductive tube;

The winding mechanism is located at the end of the detection platform and is used to wind up the tested wire after testing.

Preferably, the electric telescopic rod is installed on the top of the insulating bracket and is electrically connected to the wire. A lifting frame is installed on its telescopic end, and the marking component is installed on the bottom of the lifting frame.

Preferably, the limiting brackets of the two limiting mechanisms are fixedly installed on the detection platform and are respectively located on both sides of the insulating bracket. The limiting brackets fix the limiting tube, and the limiting bracket is fixed inside the limiting tube. The rotation is provided with several guide wheels.

Preferably, four sets of guide wheels are arranged around the inner wall of the limiting tube, and the limiting tube is coaxially arranged with the detection tube.

Preferably, the rewinding mechanism includes a rewinding frame located at the end of the detection platform. The rewinding frame is rotatably mounted with a rewinding roller and is fixedly mounted with a motor. The output end of the motor is connected to the rewinding roller. Drive connection.

Preferably, the winding roller is also provided with guide grooves.

The line loss monitoring device provided by the utility model passes current into the conductive tube through the transmission line, and the conductive tube is connected by the wire and the detection lamp to form a current loop. When the damaged part of the line to be measured passes through the conductive tube, the current will flow into the conductive tube. The measuring line makes the current of the detection light unstable and causes flickering, which facilitates the staff to quickly judge whether the damage is detected; after the detection light flashes and detects damage, the electric telescopic rod is extended to drive the marking component down to make a mark on the line to be measured, which is convenient later The staff can find the damaged area of the cable based on the marks without affecting the detection efficiency; the overall detection process is simple, stable and reliable.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description These are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without exerting creative efforts.

Figure 1 is a schematic front cross-sectional structural diagram of a line loss monitoring device provided by the present utility model in a specific embodiment;

Figure 2 is an enlarged structural schematic diagram of position A in Figure 1;

Figure 3 is a schematic top view of the winding roller in Figure 1.

The reference numbers in Figures 1 to 3 are as follows:

1. Testing table; 2. Insulating bracket; 3. Testing tube; 4. Conductive tube; 5. Transmission line; 6. Conductor; 7. Testing light; 8. Electric telescopic rod; 9. Lifting frame; 10. Marking components; 11. Limit bracket; 12. Limit tube; 13. Guide wheel; 14. Rewinding frame; 15. Rewinding roller; 16. Motor; 17. Fixing clip; 18. Guide groove; 19. Threaded rod; 20. Rotating seat; 21. Threaded sleeve.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

The core of the utility model is to provide a line loss detection device whose detection operation is simple, stable and reliable, enabling workers to obtain detection results in time and accurately find the location of damage.

Please refer to Figures 1-3. Figure 1 is a schematic front cross-sectional structural diagram of the line loss monitoring device provided by the present utility model in a specific embodiment; Figure 2 is an enlarged structural schematic diagram of A in Figure 1; Figure 3 is a diagram Schematic diagram of the top view of the winding roller in 1.

In a first specific embodiment, the line loss detection device provided by the present invention includes a detection platform 1, a detection mechanism, a limiting mechanism and a winding mechanism.

The detection mechanism may specifically include an insulating bracket 2, a detection tube 3, a conductive tube 4, a transmission line 5, a conductor 6, a detection light 7 and a marking mechanism; wherein, the detection platform 1 is provided with an insulating bracket 2 fixed in the middle, and the insulating bracket 2 is fixed in the middle. A detection tube 3 is provided, and a conductive tube 4 is fixedly installed in the detection tube 3. One side of the conductive tube 4 is electrically connected with a transmission line 5, and the other side of the conductive tube 4 is connected with a wire 6.

A detection light 7 is fixed above the insulating bracket 2, and the other end of the wire 6 is electrically connected to the detection light 7; a marking mechanism is arranged on the other side of the insulating bracket 2. Limiting mechanisms are provided on both sides of the insulating bracket 2, and a winding mechanism is provided on the other side of the testing platform 1.

During detection, the transmission line 5 delivers current to the conductive tube 4 so that the current loop formed by the conductive tube 4 , the wire 6 and the detection lamp 7 can light up the detection lamp 7 .

Since the outside of normal wires are protected by insulating rubber, the current circuit of the detection lamp 7 will not be affected. When the damaged part of the wire passes through the conductive tube 4, due to the conductive nature of the copper wire inside the wire, a large amount of current will be transmitted to the wire, causing the detection light 7 to flash, thereby facilitating the staff to observe the wire loss detection situation in time, and solving the problem of detection components and After the line under test is in contact and damage is detected, prompts cannot be given in time, and the staff cannot quickly judge whether damage has been detected.

The marking mechanism includes an electric telescopic rod 8, a lifting frame 9 and a marking component 10; an electric telescopic rod 8 is fixed on the other side of the insulating bracket 2, a lifting frame 9 is fixed on the telescopic end of the electric telescopic rod 8, and a lifting frame 9 is fixed on the bottom of the electric telescopic rod 8. There are marked parts 10.

The electric telescopic rod 8 is electrically connected to the wire 6. When the current of the wire 6 changes, the electric telescopic rod 8 starts to extend and drives the lifting frame 9 to descend, so that the marking component 10 lowers and covers the line to be measured for marking, which facilitates the staff to follow up according to the test. Markers quickly locate line breaks.

How to specifically convert the current change signal in the wire 6 into the starting action of the electric telescopic rod 8 has long been a mature existing technology in the field of automatic control. The specific implementation process will not be described in detail in this application. Those skilled in the art can refer to Existing technology will suffice.

The limiting mechanism may specifically include a limiting bracket 11 , a limiting tube 12 and a guide wheel 13 . Limit brackets 11 are provided on both sides of the insulation bracket 2. The bottom of the limit bracket 11 is fixedly connected to the detection platform 1. A limit tube 12 is fixed between the limit brackets 11. A guide wheel 13 is provided for rotation in the limit tube 12.

Specifically, the guide wheels 13 can be provided with four groups surrounding the inner wall of the limiting tube 12. The limiting tube 12 and the detection tube 3 are kept at the same level and coaxially; when the detection is performed, the line to be measured passes through the limiting tube 12 and is passed by the guide wheel 13. Perform limit guidance to keep the line to be measured close to the conductive tube 4 when passing through the detection tube 3 to ensure the detection effect.

The winding mechanism may specifically include a winding frame 14, a winding roller 15, a motor 17, a fixing clip 17 and a guide groove 18.

A rewinding frame 14 is fixedly provided on the other side of the inspection platform 1. A rewinding roller 15 is provided with bearings between the rewinding frames 14 for rotation. A motor 17 is fixedly provided at the rear side of the rewinding frame 14. The output end of the motor 17 is connected to the rewinding frame 14. The winding roller 15 is driven and connected. The winding roller 15 may be arranged with guide grooves 18 .

The rewinding roller 15 is fixed with a fixed mechanism. When rewinding, the motor 17 starts to drive the rewinding roller 15 to rotate, pulling the line to be measured to be rewinded onto the rewinding roller 15. The guide groove 18 allows the line to be measured to be evenly arranged and rolled up. , drives the line to be tested to move at a constant speed, which solves the problem that the line to be tested needs to be pulled and moved by the staff, causing the line to be tested to be unable to move at a constant speed for detection, which easily affects the detection effect.

The fixing mechanism may specifically include a fixing clip 17, a threaded rod 19, a rotating base 20 and a threaded sleeve 21. There is a fixed clamp 17 on the upper and rear side of the winding roller 15. Two sets of fixed clamps 17 are arranged in mirror symmetry up and down. A threaded rod 19 is provided on the rear side of the fixed clamp 17. A rotating base 20 is fixed on the upper fixed clamp 17. The rotating base 20 is rotated with a threaded sleeve 21, and the threaded rod 19 is threaded through the threaded sleeve 21. Before rewinding, place one end of the line to be measured between the fixed clips 17, rotate the threaded sleeve 21 and the threaded rod 19 to cooperate with the downward movement The upper fixed clamp 17 moves to clamp and fix the line to be measured.

When the line loss detection device is performing a test, it can pull the line to be tested through the limit tube and the detection tube to the winding roller, rotate the threaded sleeve and cooperate with the threaded rod thread to lower the fixed clip to clamp the line to be measured for fixation. Then the motor starts to drive the winding roller to rotate at a constant speed to pull the material on the line to be measured; the guide wheel limits the line to be measured and guides the line to be measured so that it fits the conductive tube when it enters and exits the detection tube. The transmission line energizes the conductive tube so that the detection light passes through the conductor. A current loop is formed and lights up; when the damaged part of the line under test passes through the conductive tube, the internal copper wire of the line under test contacts the conductive tube, causing current to pass into the line under test, causing the current transmitted to the detection light to fluctuate and causing the detection light to flash; when When the current transmitted in the wire fluctuates, the electric telescopic rod extends to drive the lifting frame and marking components down to mark the line to be tested, which facilitates the staff to quickly find the damaged location without affecting the detection efficiency; the overall detection process is simple, stable and reliable.

Each embodiment in this specification is described in a progressive manner. Each embodiment focuses on its differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other.

The line loss detection device provided by the present utility model has been introduced in detail above. This article uses specific examples to illustrate the principles and implementation methods of the present utility model. The description of the above embodiments is only used to help understand the method and the core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection of the claims of the present utility model. within the range.

Claims (6)

1. The line loss detection device is characterized by comprising a detection table (1), and a detection mechanism, a limiting mechanism and a winding mechanism which are arranged on the detection table (1);

the detection mechanism comprises an insulating bracket (2) fixedly arranged on the detection table (1), a detection tube (3) is fixedly arranged on the insulating bracket (2), and a conductive tube (4) is coaxially and fixedly arranged in the detection tube (3); one side of the conductive tube (4) is electrically connected with the power transmission line (5), and the other side is electrically connected with one end of the lead (6); a detection lamp (7) which sends out a signal when the conducting tube (4) detects leakage current and a marking part (10) driven by an electric telescopic rod (8) are also arranged above the insulating bracket (2); the other end of the lead (6) is electrically connected with the detection lamp (7), and the electric telescopic rod (8) drives the marking part (10) to move to a preset position when the conductive pipe (4) detects leakage current;

the two limiting mechanisms are respectively arranged at two sides of the detection mechanism and used for keeping the position of the wire to be detected in the conductive tube (4);

the winding mechanism is positioned at the end part of the detection table (1) and is used for winding the detected test line.

2. Line loss detection device according to claim 1, characterized in that the electric telescopic rod (8) is mounted on the top of the insulating support (2) and is electrically connected with the wire (6), the telescopic end of the electric telescopic rod is provided with a lifting frame (9), and the marking component (10) is mounted on the bottom of the lifting frame (9).

3. The line loss detection apparatus according to claim 1 or 2, wherein,

two stop gear's spacing support (11) all fixed set up in detect platform (1) and both locate respectively the both sides of insulating support (2), spacing support (11) are fixed with spacing pipe (12), spacing pipe (12) rotation is equipped with a plurality of leading wheels (13).

4. The line loss detecting apparatus according to claim 3, wherein,

the inner wall of the limiting pipe (12) is provided with four groups of guide wheels (13) in a surrounding mode, and the limiting pipe (12) and the detecting pipe (3) are coaxially arranged.

5. The line loss detecting apparatus according to claim 3, wherein,

the winding mechanism comprises a winding frame (14) arranged at the end part of the detection table (1), a winding roller (15) is rotatably arranged on the winding frame (14), a motor (16) is fixedly arranged on the winding frame, and the output end of the motor (16) is in driving connection with the winding roller (15).

6. The line loss detecting apparatus according to claim 5, wherein,

and the wind-up roller (15) is also provided with a guide groove (18).