Transformer substation insulator leakage current detector

Abstract

The utility model is suitable for the technical field of leakage current detectors, and provides a transformer station insulator leakage current detector comprising a first electric cylinder; the sleeve plate is fixedly arranged on an output rod of the first electric cylinder in a sleeving manner; the U-shaped plate is fixedly mounted on the sleeve plate; the positioning plate is fixedly mounted on the U-shaped plate; the transverse shaft is rotationally mounted on the positioning plate; the rotating plate is fixedly arranged on the transverse shaft in a sleeving manner; the second electric cylinder is fixedly mounted on the rotating plate; and the leakage current detection mechanism is mounted on an output rod of the second electric cylinder and is used for detecting the leakage current condition of the transformer substation insulator. According to the transformer substation insulator leakage current detector provided by the scheme, a worker can conveniently stand on the ground to detect a transformer substation insulator installed at a high position, and the transformer substation insulator leakage current detector can be folded and stored and is relatively convenient to operate.

Description

Technical Field

[0001] This utility model belongs to the technical field of leakage current detectors, and in particular relates to a leakage current detector for substation insulators. Background Technology

[0002] An insulator is a special type of insulating control that plays a crucial role in overhead transmission lines. It is primarily used to support and secure the external energized conductors of busbars, leads, and various electrical equipment in substations, insulating them from the ground (or grounded objects) or other conductors with a potential difference. Insulators must be able to withstand various electromechanical stresses caused by changes in environmental and electrical load conditions to prevent current from returning to ground and ensure the safe operation of the line.

[0003] During the maintenance and repair of substation insulators, leakage current detectors are needed to check the leakage current of the insulators. However, existing substation insulator leakage current detectors often require workers to set up ladders to check the leakage current of insulators installed at high locations, which is quite inconvenient. Utility Model Content

[0004] This invention provides a substation insulator leakage current detector, aiming to solve the problem mentioned in the background art that the existing substation insulator leakage current detectors are time-consuming and labor-intensive in the process of detecting substation insulators.

[0005] To solve the above problems, this utility model is implemented as follows: a substation insulator leakage current detector, comprising: a first electric cylinder; a sleeve plate fixedly sleeved on the output rod of the first electric cylinder; a U-shaped plate fixedly mounted on the sleeve plate; a positioning plate fixedly mounted on the U-shaped plate; a horizontal shaft rotatably mounted on the positioning plate; a rotating plate fixedly sleeved on the horizontal shaft; a second electric cylinder fixedly mounted on the rotating plate; and a leakage current detection mechanism mounted on the output rod of the second electric cylinder, wherein the leakage current detection mechanism is used to detect the leakage current of the substation insulator.

[0006] Preferably, the leakage current detection mechanism includes: a housing fixedly mounted on the output rod of the second electric cylinder; a current transformer fixed end fixedly mounted on the housing; a current transformer movable end mounted on the current transformer fixed end; an induction coil sleeved on the current transformer fixed end; a current detection module fixedly mounted on the inner wall of the housing and connected to the induction coil; and an opening and closing mechanism mounted on the housing, the opening and closing mechanism being used to control the opening and closing of the current transformer movable end.

[0007] Preferably, the opening and closing mechanism includes: a vertical plate fixedly installed on one side of the housing; a rotating shaft rotatably installed on the vertical plate; a connecting plate fixedly sleeved on the rotating shaft and fixedly connected to the movable end of the current transformer; a servo motor rotatably installed on the inner wall of the housing; a transmission rod rotatably installed on the housing and fixedly connected to the output shaft of the servo motor; and two bevel gears fixedly installed on one end of the transmission rod and the rotating shaft respectively and meshing with each other.

[0008] Preferably, the U-shaped plate is further provided with a folding and storage mechanism, which includes: a worm gear rotatably mounted on the inner wall of the U-shaped plate; a worm wheel fixedly sleeved on the horizontal shaft and meshing with the worm gear; and a knob fixedly mounted on one end of the worm gear.

[0009] Preferably, a handle is fixedly installed at the bottom of the first electric cylinder, and an operation panel is fixedly installed on the first electric cylinder. The operation panel is electrically connected to the first electric cylinder, the second electric cylinder, the current detection module, and the servo motor.

[0010] Preferably, a lithium battery is fixedly installed on the inner wall of the housing, and the lithium battery is electrically connected to the operation panel.

[0011] Preferably, the housing is provided with a charging interface, which is electrically connected to the lithium battery.

[0012] Compared with related technologies, the substation insulator leakage current detector provided by this utility model has the following advantages:

[0013] Compared with existing technologies, the substation insulator leakage current detector provided in this solution includes a first electric cylinder with a sleeve plate fixedly mounted on its output rod. A U-shaped plate is fixedly installed on the sleeve plate, and a positioning plate is fixedly mounted on the U-shaped plate. A horizontal shaft is rotatably mounted on the positioning plate, and a rotating plate is fixedly mounted on the horizontal shaft. A second electric cylinder is fixedly mounted on the rotating plate. A leakage current detection mechanism is installed on the output rod of the second electric cylinder. This mechanism is specifically used to detect the leakage current of substation insulators. Through the coordinated action of the first and second electric cylinders, this structure can flexibly adjust the height and position of the leakage current detection mechanism, making it convenient for workers to stand on the ground and perform leakage current detection on substation insulators installed at high locations. This achieves comprehensive and accurate detection of leakage current in substation insulators, improving detection efficiency and accuracy, which is of great significance for ensuring the safe and stable operation of the power system. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of a substation insulator leakage current detector provided by this utility model;

[0015] Figure 2 for Figure 1 A three-dimensional assembly structure diagram of the second electric cylinder and the rotating plate;

[0016] Figure 3 for Figure 1 A top-view cross-sectional view of the leakage current detection mechanism;

[0017] Figure 4 for Figure 1 An enlarged structural diagram of part A shown in the figure;

[0018] Figure 5 for Figure 3 The diagram shows an enlarged view of part B.

[0019] Reference numerals: 1. First electric cylinder; 2. Sleeve plate; 3. U-shaped plate; 4. Positioning plate; 5. Horizontal shaft; 6. Rotating plate; 7. Second electric cylinder; 8. Housing; 9. Fixed end of current transformer; 10. Moving end of current transformer; 11. Induction coil; 12. Current detection module; 13. Vertical plate; 14. Rotating shaft; 15. Connecting plate; 16. Servo motor; 17. Transmission rod; 18. Bevel gear; 19. Worm gear; 20. Worm wheel; 21. Knob; 22. Handle; 23. Operation panel; 24. Lithium battery; 25. Charging interface. Detailed Implementation

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] This utility model embodiment provides a substation insulator leakage current detector, such as... Figure 1-5 As shown, the substation insulator leakage current detector includes: a first electric cylinder 1; a sleeve plate 2 fixedly sleeved on the output rod of the first electric cylinder 1; a U-shaped plate 3 fixedly installed on the sleeve plate 2; a positioning plate 4 fixedly installed on the U-shaped plate 3; a horizontal shaft 5 rotatably installed on the positioning plate 4; a rotating plate 6 fixedly sleeved on the horizontal shaft 5; a second electric cylinder 7 fixedly installed on the rotating plate 6; and a leakage current detection mechanism installed on the output rod of the second electric cylinder 7, wherein the leakage current detection mechanism is used to detect the leakage current of the substation insulator.

[0023] In this embodiment, a first electric cylinder 1 is included, with a sleeve plate 2 fixedly fitted on its output rod. A U-shaped plate 3 is fixedly installed on the sleeve plate 2, and a positioning plate 4 is fixedly installed on the U-shaped plate 3. A horizontal shaft 5 is rotatably installed on the positioning plate 4, and a rotating plate 6 is fixedly fitted on the horizontal shaft 5. A second electric cylinder 7 is fixedly installed on the rotating plate 6. A leakage current detection mechanism is installed on the output rod of the second electric cylinder 7. This mechanism is specifically used to detect the leakage current of substation insulators. Through the coordinated action of the first electric cylinder 1 and the second electric cylinder 7, this structure can flexibly adjust the height and position of the leakage current detection mechanism, making it convenient for workers to stand on the ground to conduct leakage current detection on substation insulators installed at high locations. This enables comprehensive and accurate detection of leakage current in substation insulators, improving detection efficiency and accuracy, which is of great significance for ensuring the safe and stable operation of the power system.

[0024] In a further preferred embodiment of this utility model, the leakage current detection mechanism includes: a housing 8 fixedly mounted on the output rod of the second electric cylinder 7; a current transformer fixed end 9 fixedly mounted on the housing 8; a current transformer movable end 10 mounted on the current transformer fixed end 9; an induction coil 11 sleeved on the current transformer fixed end 9; a current detection module 12 fixedly mounted on the inner wall of the housing 8 and connected to the induction coil 11; and an opening and closing mechanism mounted on the housing 8, the opening and closing mechanism being used to control the opening and closing of the current transformer movable end 10.

[0025] In this embodiment, the leakage current of the substation insulator can be detected by the cooperation of the fixed terminal 9 of the current transformer, the movable terminal 10 of the current transformer, the induction coil 11, and the current detection module 12.

[0026] In a further preferred embodiment of this utility model, the opening and closing mechanism includes: a vertical plate 13 fixedly installed on one side of the housing 8; a rotating shaft 14 rotatably installed on the vertical plate 13; a connecting plate 15 fixedly sleeved on the rotating shaft 14 and fixedly connected to the movable end 10 of the current transformer; a servo motor 16 rotatably installed on the inner wall of the housing 8; a transmission rod 17 rotatably installed on the housing 8 and fixedly connected to the output shaft of the servo motor 16; and two bevel gears 18 fixedly installed on one end of the transmission rod 17 and the rotating shaft 14 and meshing with each other.

[0027] In this embodiment, the servo motor 16 can drive the transmission rod 17 to rotate. The transmission rod 17 can drive the rotating shaft 14 and the connecting plate 15 to rotate through two bevel gears 18. The connecting plate 15 can drive the moving end 10 of the current transformer to rotate, thereby controlling the opening and closing of the fixed end 9 and the moving end 10 of the current transformer. In this way, the fixed end 9 and the moving end 10 of the current transformer can be sleeved on the substation insulator.

[0028] In a further preferred embodiment of the present invention, the U-shaped plate 3 is further provided with a folding and storage mechanism, the folding and storage mechanism comprising: a worm gear 19 rotatably mounted on the inner wall of the U-shaped plate 3; a worm wheel 20 fixedly sleeved on the horizontal shaft 5 and meshing with the worm gear 19; and a knob 21 fixedly mounted on one end of the worm gear 19.

[0029] In this embodiment, the knob 21 can drive the worm gear 19 to rotate, the worm gear 19 can drive the horizontal shaft 5 to rotate, and the horizontal shaft 5 can drive the rotating plate 6 and the second electric cylinder 7 to rotate, thereby folding or unfolding the second electric cylinder 7 and the leakage current detection mechanism.

[0030] In a further preferred embodiment of the present invention, a handle 22 is fixedly installed at the bottom of the first electric cylinder 1, and an operation panel 23 is fixedly installed on the first electric cylinder 1. The operation panel 23 is electrically connected to the first electric cylinder 1, the second electric cylinder 7, the current detection module 12, and the servo motor 16.

[0031] In this embodiment, the handle 22 makes it easy for staff to hold the device for testing operations, and the operation panel 23 allows for operation and control of the device.

[0032] In a further preferred embodiment of the present invention, a lithium battery 24 is fixedly installed on the inner wall of the housing 8, and the lithium battery 24 is electrically connected to the operation panel 23.

[0033] In this embodiment, the device can be powered by a lithium battery 24.

[0034] In a further preferred embodiment of the present invention, a charging interface 25 is provided on the housing 8, and the charging interface 25 is electrically connected to the lithium battery 24.

[0035] In this embodiment, an external charging cable can be connected through the charging interface 25 to charge the lithium battery 24.

[0036] In summary, compared with related technologies, this device not only allows workers to stand on the ground to inspect substation insulators installed at high locations, but it can also be folded and stored, making it more convenient to operate.

[0037] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A substation insulator leakage current detector, characterized by, The utility model relates to a kind of leakage current detection mechanism for transformer substation insulator leakage current detection. The leakage current detection mechanism includes: A housing fixedly installed on the output rod of the second electric cylinder; A current transformer fixed end fixedly installed on the housing; A current transformer movable end installed on the current transformer fixed end; An induction coil sleeved on the current transformer fixed end; A current detection module fixedly installed on the inner wall of the housing and connected with the induction coil; An opening and closing mechanism installed on the housing, for controlling the opening and closing of the current transformer movable end. The opening and closing mechanism includes:

2. The substation insulator leakage current detector of claim 1, wherein, A vertical plate fixedly installed on one side of the housing; A rotating shaft rotatably installed on the vertical plate; A connecting plate fixedly sleeved on the rotating shaft and fixedly connected with the current transformer movable end; A servo motor rotatably installed on the inner wall of the housing; A transmission rod rotatably installed on the housing and fixedly connected with the output shaft of the servo motor; Two bevel gears fixedly installed on one end of the transmission rod and the rotating shaft respectively and engaged with each other. The U-shaped plate is further provided with a folding storage mechanism, which includes:

3. The substation insulator leakage current detector of claim 2, wherein, A worm rotatably installed on the inner wall of the U-shaped plate; A worm gear fixedly sleeved on the horizontal shaft and engaged with the worm; A knob fixedly installed on one end of the worm. The bottom end of the first electric cylinder is fixedly installed with a handle, and the first electric cylinder is fixedly installed with an operation panel, which is electrically connected with the first electric cylinder, the second electric cylinder, the current detection module and the servo motor. The inner wall of the housing is fixedly installed with a lithium battery, which is electrically connected with the operation panel. The housing is provided with a charging interface, which is electrically connected with the lithium battery. ​ 4. The substation insulator leakage current detector of claim 1, wherein, ​ ​ ​ ​ 5. The substation insulator leakage current detector of claim 3, wherein, ​ 6. The substation insulator leakage current detector of claim 5, wherein, ​ 7. The substation insulator leakage current detector of claim 6, wherein, ​

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