Skirt type transformer partial discharge sensor

Abstract

The utility model discloses a partial discharge sensor of a skirt type transformer. The partial discharge sensor comprises a discharge sensor body; the additionally-arranged mounting part comprises a transverse mounting plate, a longitudinal mounting plate and a threaded head; the transverse mounting plate is fixed at the lower end of the discharge sensor body, the longitudinal mounting plates are arranged into a group and are movably connected to the end part of the transverse mounting plate, and the threaded heads penetrate through the middle parts of the group of longitudinal mounting plates at equal intervals. An installation mode of an existing skirt-type transformer partial discharge sensor only supports a mode that a new transformer is pre-embedded into the transformer before leaving a factory, and then the transformer is filled with oil and then integrally delivered; for a transformer which is put into operation, a sensor can be installed only after the transformer is stopped and internal insulating oil is discharged in the installation process, and finally, the transformer needs to be refilled with oil after the installation is finished, so that the installation process is time-consuming and labor-consuming, and the shutdown of equipment may cause heavy economic loss.

Description

Technical Field

[0001] The utility model relates to the technical field of discharge sensors, in particular to a skirt-type transformer partial discharge sensor. Background Art

[0002] The skirt-type transformer partial discharge sensor can be installed at the bottom skirt of the monitored transformer, and can monitor the discharge signal generated during the partial discharge process inside the transformer in real time.

[0003] However, it still has the following disadvantages in actual use:

[0004] The existing skirt-type transformer partial discharge sensor is usually only installed in a way that it is pre-buried inside the transformer before the new transformer leaves the factory, and then shipped as a whole after the transformer is filled with oil. For transformers that have been put into operation, the installation process requires the transformer to be shut down and the internal insulating oil to be drained before the sensor can be installed. Finally, the transformer needs to be refilled with oil after installation. The installation process is time-consuming and labor-intensive, and equipment shutdown may also result in significant economic losses. Utility Model Content

[0005] The utility model aims to provide a skirt-type transformer partial discharge sensor to solve the problem raised in the above-mentioned background technology that the existing skirt-type transformer partial discharge sensor often only supports the mode of pre-embedded into the transformer before the new transformer leaves the factory, and then the sensor is shipped as a whole after the transformer is filled with oil; for the transformer that has been put into operation, the installation process requires the transformer to be shut down and the internal insulating oil to be discharged before the sensor can be installed, and finally the transformer needs to be refilled with oil after the installation, the installation process is time-consuming and labor-intensive, and the shutdown of the equipment may also cause significant economic losses.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a skirt-type transformer partial discharge sensor, comprising:

[0008] Discharge sensor body;

[0009] Additional mounting components are provided, wherein the additional mounting components include a transverse mounting plate, a longitudinal mounting plate and a threaded head;

[0010] The transverse mounting plate is fixed to the lower end of the discharge sensor body, and the longitudinal mounting plate is provided as a group and movably connected to the end of the transverse mounting plate, and the threaded head is equidistantly penetrates the middle of a group of the longitudinal mounting plates.

[0011] Furthermore, the upper portion of the longitudinal mounting plate is configured to be arc-shaped and extends into the middle section of the end portion of the transverse mounting plate, and bayonet openings are equidistantly provided in the middle of the transverse mounting plate.

[0012] Furthermore, a threaded hole extending out of the longitudinal mounting plate is provided in the middle of the front side of the threaded head, and the inner side of the threaded head is clamped in the clamping socket.

[0013] Further, it also includes an adjustment reset component;

[0014] The adjustment and reset component includes an adjustment port, an adjustment block and a reset spring;

[0015] The regulating port is opened in the middle section of the end of the transverse mounting plate, and the reset spring is equidistantly fixed to one end inside the regulating port, and the ends of the regulating block are respectively fixed to one end of the reset spring and the upper end of the longitudinal mounting plate.

[0016] Furthermore, a group of the adjustment openings are not arranged through, and the inner side walls of the adjustment openings are slidably fitted to the two sides of the adjustment block.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] The utility model is provided with a transverse mounting plate, a longitudinal mounting plate and a threaded head. The transverse mounting plate and the longitudinal mounting plate are combined into a mounting structure, which is installed on the discharge sensor body. The lower end of the longitudinal mounting plate is clamped in the gap of the transformer skirt, and the bolts are inserted and tightened in the threaded head to complete the installation. This installation method is simple and does not require power outage, and can effectively solve the problem of installing an immersed partial discharge sensor on an already operated transformer.

[0019] Based on the above beneficial effects, an adjustment block and a return spring are provided. The adjustment block can meet the installation requirements of the longitudinal mounting plate by extending and retracting in the adjustment opening at the end of the transverse mounting plate. After use, the used adjustment block can be pulled inward by the return spring, and the structure can be limited to prevent the adjustment block from being moved out of the adjustment opening due to the tipping force and being damaged and lost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is the appearance diagram of the utility model;

[0022] Figure 2 It is a top view of the utility model;

[0023] Figure 3 It is a bottom view of the utility model;

[0024] Figure 4 It is a schematic diagram of the adjustment and reset component of the utility model.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Discharge sensor body;

[0027] 21. Horizontal mounting plate; 22. Vertical mounting plate; 23. Threaded head; 24. Threaded hole;

[0028] 31. Adjustment port; 32. Adjustment block; 33. Return spring. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0031] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] See also Figure 1-4 As shown, this embodiment is a skirt-type transformer partial discharge sensor, comprising:

[0033] Discharge sensor body 1;

[0034] The discharge sensor body 1 monitors the discharge signal generated during the partial discharge process inside the transformer in real time, effectively solving the problem of insulation breakdown caused by untimely detection of partial discharge, thereby avoiding major power accidents and personal safety accidents;

[0035] Additional mounting components are provided, including a transverse mounting plate 21, a longitudinal mounting plate 22 and a threaded head 23;

[0036] The transverse mounting plate 21 is fixed to the lower end of the discharge sensor body 1, and the longitudinal mounting plate 22 is provided as a group and movably connected to the end of the transverse mounting plate 21, and the thread head 23 is equidistantly penetrated through the middle of a group of longitudinal mounting plates 22;

[0037] The horizontal mounting plate 21 is used to fix the discharge sensor body 1 and to install the longitudinal mounting plate 22. The entire discharge sensor body 1 can be installed on the transformer by clamping the longitudinal mounting plate 22 with the gap of the skirt at the bottom of the transformer and by using the threaded head 23 with bolts.

[0038] The upper portion of the longitudinal mounting plate 22 is designed to be arc-shaped and extends to the middle section of the end of the transverse mounting plate 21, and the middle of the transverse mounting plate 21 is provided with bayonet holes at equal intervals;

[0039] The arc-shaped setting avoids causing harm to the human body, and the bayonet fixes the threaded head 23 to the structure, and the snap connection facilitates the disassembly and assembly of the structure;

[0040] A threaded hole 24 extending out of the longitudinal mounting plate 22 is provided in the middle of the front side of the threaded head 23, and the inner side of the threaded head 23 is clamped in the bayonet;

[0041] The threaded hole 24 is used for receiving external bolts and is used for secondary fixing of the structure between the discharge sensor body 1 and the transformer;

[0042] Working principle: After the lower end of the discharge sensor body 1 is fixed to the upper end of the horizontal mounting plate 21, the longitudinal mounting plate 22 can be extended and inserted into the end of the horizontal mounting plate 21, and the following adjustment and reset components can be used to adjust the appropriate spacing of a group of longitudinal mounting plates 22, and the lower end of the longitudinal mounting plate 22 can be clamped in the bottom skirt of the transformer;

[0043] Next, an external screw is inserted into the threaded hole 24 in the middle of the threaded head 23 and tightened to install the discharge sensor body 1 and the transformer.

[0044] This step and this installation method are simple and do not require power outage, and can effectively solve the problem of installing the discharge sensor body 1 on an already-operated transformer.

[0045] See also Figure 1-4 As shown, this embodiment is based on the above embodiment 1 and further includes an adjustment reset component;

[0046] The adjustment and reset component includes an adjustment port 31, an adjustment block 32 and a reset spring 33;

[0047] The adjustment port 31 is opened in the middle section of the end of the transverse mounting plate 21, and the return spring 33 is equidistantly fixed to one end of the inner side of the adjustment port 31, and the ends of the adjustment block 32 are respectively fixed to one end of the return spring 33 and the upper end of the longitudinal mounting plate 22;

[0048] The adjustment port 31 fixes the structure of the reset spring 33 and provides the environment required for the expansion and contraction of the adjustment block 32. The adjustment block 32 installs the reset spring 33 and the longitudinal mounting plate 22, and can adjust the spacing of a group of longitudinal mounting plates 22 to meet the installation requirements of the discharge sensor body 1. The reset spring 33 limits the structure of the adjustment block 32 and can reset the position of the adjustment block 32 after use.

[0049] A set of adjustment openings 31 are not set through, and the inner side walls of the adjustment openings 31 are slidably attached to the sides of the adjustment block 32;

[0050] The non-through setting can meet the installation requirements of multiple return springs 33, and the sliding fit setting can ensure that the adjustment block 32 in the telescopic state is not affected by damping and can be smoothly extended and extended;

[0051] Working principle: When the longitudinal mounting plates 22 are used, an external dragging force can be applied to a group of longitudinal mounting plates 22. Under the elastic force of the return spring 33, the adjustment block 32 extends out of the adjustment port 31, which can meet the spacing requirements of a group of longitudinal mounting plates 22.

[0052] After the adjustment block 32 is used, the return spring 33 without limiting force recovers its deformation and exerts an inward pulling force on the adjustment block 32, so that the adjustment block 32 is smoothly returned to the adjustment port 31;

[0053] This step can prevent the adjustment block 32 from being moved out of the adjustment opening 31 due to the tipping force and being damaged or lost.

[0054] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A skirt-type transformer partial discharge sensor, characterized in that: include: Discharge sensor body (1); Additional mounting components are provided, wherein the additional mounting components include a transverse mounting plate (21), a longitudinal mounting plate (22) and a threaded head (23); The transverse mounting plate (21) is fixed to the lower end of the discharge sensor body (1), and the longitudinal mounting plate (22) is provided as a group and movably connected to the end of the transverse mounting plate (21), and the threaded head (23) is equidistantly penetrated through the middle of a group of the longitudinal mounting plates (22).

2. A skirt-type transformer partial discharge sensor according to claim 1, characterized in that: The upper portion of the longitudinal mounting plate (22) is designed to be arc-shaped and extends into the middle section of the end of the transverse mounting plate (21), and bayonet openings are equidistantly provided in the middle of the transverse mounting plate (21).

3. The skirt-type transformer partial discharge sensor according to claim 1, characterized in that: A threaded hole (24) extending from the longitudinal mounting plate (22) is provided in the middle of the front side of the threaded head (23), and the inner side of the threaded head (23) is clamped in the clamping socket.

4. The skirt-type transformer partial discharge sensor according to claim 1, characterized in that: Also includes an adjustment reset component; The adjustment and reset component comprises an adjustment port (31), an adjustment block (32) and a reset spring (33); The regulating port (31) is opened in the middle section of the end of the transverse mounting plate (21), and the return spring (33) is fixed equidistantly to one end inside the regulating port (31), and the ends of the regulating block (32) are respectively fixed to one end of the return spring (33) and the upper end of the longitudinal mounting plate (22).

5. A skirt-type transformer partial discharge sensor according to claim 4, characterized in that: A group of the regulating openings (31) are not arranged through, and the inner side walls of the regulating openings (31) are slidably fitted to the two sides of the regulating block (32).

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