CN220367401U

CN220367401U - Line loss detection device

Info

Publication number: CN220367401U
Application number: CN202322079922.3U
Authority: CN
Inventors: 乐昕怡; 魏永鑫; 陈咏涛; 朱小军; 王瑞妙; 赵小娟; 付昂; 董光德; 马兴; 杨爽; 邱九皓
Original assignee: Electric Power Research Institute of State Grid Chongqing Electric Power Co Ltd; State Grid Corp of China SGCC; State Grid Chongqing Electric Power Co Ltd
Current assignee: Electric Power Research Institute of State Grid Chongqing Electric Power Co Ltd; State Grid Corp of China SGCC; State Grid Chongqing Electric Power Co Ltd
Priority date: 2023-08-03
Filing date: 2023-08-03
Publication date: 2024-01-19
Anticipated expiration: 2033-08-03

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

Line loss detection device

Technical Field

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

Background

The electrical energy loss of a distribution network is not only related to the structural and load properties of the network, but also to the level of operational maintenance management of the system.

In the line loss management of a power supply station, managing the line loss is an important factor affecting the statistical line loss; this loss is also commonly referred to as an unknown loss, because it is irregular and can not be easily measured. The electric energy loss formed by the fact that the electric energy loss is not managed in place occupies a large proportion in the whole actual line loss, and in some occasions, part links are even serious. Through line loss analysis, factors such as the cause, the property, the proportion of each component and the like of the line loss of the unit can be deeply known, the main factors influencing the loss are found out, corresponding measures are taken in a targeted manner, and a large loss reducing effect and economic benefit are obtained with less investment.

In the fault detection device for line loss management in the prior art, when the detection is performed, a worker is required to pull and move the to-be-detected line, so that the to-be-detected line cannot move at a uniform speed to perform detection, and the detection effect is easily influenced; the detection assembly cannot prompt in time after detecting the damage, so that a worker cannot quickly judge whether the damage is detected; in addition, the positional shift of each of the related components during the inspection process also results in that it is not easy for the worker to accurately find the measured damaged position.

Disclosure of Invention

The utility model aims to provide a line loss detection device which is simple, stable and reliable in detection operation, and can enable a worker to obtain a detection result in time and accurately find a damage position.

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

the detection mechanism comprises an insulating bracket fixedly arranged on the detection table, a detection tube is fixedly arranged on the insulating bracket, and a conductive tube is coaxially and fixedly arranged in the detection tube; one side of the conductive tube is electrically connected with the power transmission line, and the other side of the conductive tube is electrically connected with one end of the conductive wire; a detection lamp which sends out a signal when the conducting tube detects leakage current and a marking part driven by an electric telescopic rod are also arranged above the insulating bracket; the other end of the lead is electrically connected with the detection lamp, and the electric telescopic rod drives the marking part to move to a preset position when the conductive pipe 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 to-be-tested wire in the conductive tube;

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

Preferably, the electric telescopic rod is mounted on the top of the insulating support and is electrically connected with the conducting wire, the telescopic end of the electric telescopic rod is provided with a lifting frame, and the marking component is mounted on the bottom of the lifting frame.

Preferably, the two spacing brackets of the spacing mechanism are fixedly arranged on the detection table and are respectively arranged on two sides of the insulation bracket, the spacing brackets are fixedly provided with spacing pipes, and a plurality of guide wheels are rotationally arranged in the spacing pipes.

Preferably, the inner wall of the limiting tube is provided with four groups of guide wheels in a surrounding mode, and the limiting tube and the detecting tube are coaxially arranged.

Preferably, the winding mechanism comprises a winding frame arranged at the end part of the detection table, a winding roller is rotatably arranged on the winding frame, a motor is fixedly arranged on the winding frame, and the output end of the motor is in driving connection with the winding roller.

Preferably, the wind-up roller is also provided with a guide groove.

According to the line loss monitoring device provided by the utility model, the current is introduced into the conducting tube through the power line, the conducting wire and the detection lamp are connected with the conducting tube to form a current loop, and when the broken part of the line to be detected is attached to the conducting tube, the current is led into the line to be detected, so that the current of the detection lamp is unstable to cause flicker, and a worker can conveniently and rapidly judge the breakage; after the damage is detected by the flickering of the detection lamp, the electric telescopic rod stretches out to drive the marking part to descend on the line to be detected to make marks, so that workers can find the damaged position of the cable according to the marks conveniently, and meanwhile, the detection efficiency is not affected; the whole detection process is simple, stable and reliable to operate.

Drawings

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

FIG. 1 is a schematic diagram illustrating a front view and a cross-sectional structure of a line loss monitoring device according to the present utility model in an embodiment;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A;

fig. 3 is a schematic top view of the wind-up roll in fig. 1.

Reference numerals in fig. 1 to 3 are as follows:

1. a detection table; 2. an insulating support; 3. a detection tube; 4. a conductive tube; 5. a power transmission line; 6. a wire; 7. a detection lamp; 8. an electric telescopic rod; 9. a lifting frame; 10. a marking member; 11. a limit bracket; 12. a limiting tube; 13. a guide wheel; 14. a winding frame; 15. a wind-up roll; 16. a motor; 17. a fixing clamp; 18. a guide groove; 19. a threaded rod; 20. a rotating seat; 21. a threaded sleeve.

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.

The core of the utility model is to provide a line loss detection device which is simple, stable and reliable in detection operation, and can enable a worker to obtain a detection result in time and accurately find a damage position.

Referring to fig. 1 to 3, fig. 1 is a schematic front sectional view of a line loss monitoring device according to an embodiment of the present utility model; FIG. 2 is an enlarged schematic view of the structure of FIG. 1A; fig. 3 is a schematic top view of the wind-up roll in fig. 1.

In a first specific embodiment, the line loss detection device provided by the utility model comprises a detection table 1, a detection mechanism, a limiting mechanism and a winding mechanism.

The detection mechanism specifically comprises an insulating bracket 2, a detection tube 3, a conductive tube 4, a power transmission line 5, a lead 6, a detection lamp 7 and a marking mechanism; wherein, fixed insulating support 2 that is equipped with in the middle of on the test table 1, insulating support 2 is middle fixed be equipped with the detection pipe 3, and detection pipe 3 internal fixation is equipped with electrically conductive pipe 4, and electrically conductive pipe 4 one side electric connection is equipped with power transmission line 5, and electrically conductive pipe 4 opposite side connection is equipped with wire 6.

A detection lamp 7 is fixedly arranged above the insulating bracket 2, and the other end of the lead 6 is electrically connected with the detection lamp 7; the other side of the insulating bracket 2 is provided with a marking mechanism. Limiting mechanisms are arranged beside two sides of the insulating support 2, and a winding mechanism is arranged on the other side of the detecting table 1.

At the time of detection, a current is supplied from the power line 5 to the conductive pipe 4, so that a current loop formed by the conductive pipe 4, the wire 6 and the detection lamp 7 can illuminate the detection lamp 7.

Since the outside of the normal wire is protected by the insulating rubber, the current loop of the detection lamp 7 is not affected. When the wire damage department passes through the conducting tube 4, because the inside copper line of electric wire has conductive property, a large amount of electric currents will transmit to the electric wire for detect lamp 7 scintillation, thereby make things convenient for the staff in time to observe the line loss and detect the condition, solved and detect the subassembly and detect after damaging in time and prompt, the staff can't judge whether problem of damaging fast after detecting the line contact that awaits measuring.

The marking mechanism comprises an electric telescopic rod 8, a lifting frame 9 and a marking component 10; an electric telescopic rod 8 is fixedly arranged on the other side of the insulating support 2, a lifting frame 9 is fixedly arranged at the telescopic end of the electric telescopic rod 8, and a marking component 10 is fixedly arranged at the bottom of the lifting frame 9.

The electric telescopic rod 8 is electrically connected with the lead 6, and when the current of the lead 6 changes, the electric telescopic rod 8 starts to extend to drive the lifting frame 9 to descend, so that the marking part 10 descends to cover the line to be detected for marking, and a worker can conveniently and rapidly find the broken position of the line according to the marking.

How to convert the current change signal in the lead 6 into the starting action of the electric telescopic rod 8 is already mature prior art in the field of automatic control, and the specific implementation process of the method is not described in detail, and the person skilled in the art can refer to the prior art.

The limiting mechanism specifically comprises a limiting bracket 11, a limiting pipe 12 and a guide wheel 13. Limiting brackets 11 are arranged beside two sides of the insulating bracket 2, the bottoms of the limiting brackets 11 are fixedly connected with the detection table 1, limiting pipes 12 are fixedly arranged between the limiting brackets 11, and guide wheels 13 are rotationally arranged in the limiting pipes 12.

The guide wheels 13 can be provided with four groups encircling the inner wall of the limiting pipe 12, and the limiting pipe 12 and the detection pipe 3 keep the same horizontal height and are coaxial; when the detection is carried out, the wire to be detected passes through the limiting pipe 12 and is limited and guided by the guide wheel 13, so that the wire to be detected is kept to be attached to the conductive pipe 4 when passing through the detection pipe 3, and the detection effect is ensured.

The winding mechanism specifically comprises a winding frame 14, a winding roller 15, a motor 17, a fixing clamp 17 and a guide groove 18.

The other side is fixedly provided with a winding frame 14 on the detection table 1, a winding roller 15 is arranged between the winding frames 14 in a bearing fit rotation mode, a motor 17 is fixedly arranged on the rear side of the winding frame 14, and the output end of the motor 17 is in driving connection with the winding roller 15. The wind-up roller 15 can be provided with guide grooves 18 in an aligned manner.

The fixed establishment that is equipped with on the wind-up roll 15, motor 17 start drive wind-up roll 15 rotates when carrying out the rolling, and the pulling is waited to survey line and is rolled up to wind-up roll 15 on, and guide slot 18 makes the line that awaits measuring evenly arranged rolling, drives and wait to survey line at the uniform velocity and remove, has solved the line that awaits measuring and needs staff pulling to remove, leads to waiting to survey line unable at the uniform velocity to remove and detects, produces the problem of influence to the detection effect easily.

The fixing mechanism may specifically include a fixing clip 17, a threaded rod 19, a swivel base 20 and a threaded sleeve 21. The back side is equipped with fixation clamp 17 on the wind-up roll 15, and the mirror symmetry is equipped with two sets of about the fixation clamp 17, and fixation clamp 17 rear side link up and is equipped with threaded rod 19, and the fixed rotation seat 20 that is equipped with in top fixation clamp 17 rotates on the seat 20, rotates and is equipped with screw thread sleeve 21, and threaded rod 19 screw thread fit passes screw thread sleeve 21, places the line one end that awaits measuring between fixation clamp 17 before the rolling, rotates screw thread sleeve 21 and threaded rod 19 cooperation decline drive top fixation clamp 17 and remove and hold the line that awaits measuring fixedly.

When the line loss detection device is used for detecting, a line to be detected can be pulled to pass through the limiting pipe and the detection pipe to the winding roller, the thread sleeve is rotated to be matched with the thread of the threaded rod to enable the fixing clamp to descend to clamp the line to be detected for fixing, and then the winding roller is driven by the motor to rotate at a constant speed to pull the line to be detected for feeding; the guide wheel performs limit guide on the wire to be tested to enable the wire to be tested to be attached to the conductive pipe when entering and exiting the detection pipe, the power line is electrified to the conductive pipe, and the detection lamp is lightened through a current loop formed by the wire; when the broken part of the wire to be tested passes through the conductive pipe, the copper wire in the wire to be tested is contacted with the conductive pipe to enable current to be transferred into the wire to be tested, so that fluctuation of the current transmitted to the detection lamp occurs to enable the detection lamp to flash; when the current transmitted in the lead fluctuates, the electric telescopic rod stretches out to drive the lifting frame and the marking part to descend on the line to be detected for marking, so that a worker can conveniently and quickly find out the damage position, and meanwhile, the detection efficiency is not affected; the whole detection process is simple, stable and reliable to operate.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The line loss detection device provided by the utility model is described in detail above. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims

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).