Current transformer insulation detection device

Abstract

The utility model discloses a current transformer insulation detection device which comprises a tank body, a containing space is arranged in the tank body, an end cover is arranged on the top of the tank body, a pressure increasing and releasing structure is arranged on one side, away from the tank body, of the end cover, the pressure increasing and releasing structure is detachably connected to the end cover, and a pressure releasing channel communicated with the containing space is arranged in the pressure increasing and releasing structure. The current transformer insulation detection device disclosed by the utility model has the beneficial effects that the pressure of the accommodating space is higher than the normal pressure to a certain degree, and in order to avoid potential safety hazards, the elastic connection between the elastic base and the base connecting piece automatically fails under the action of the pressure, so that a gap is generated between the elastic base and the base connecting piece; and the pressure of the accommodating space is gradually recovered to the normal pressure state.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of current transformer detection, specifically relates to a current transformer insulation detection device. BACKGROUND

[0002] The utility model discloses a current transformer of one body covering insulation sponge rubber, and its technical scheme discloses "insulation sponge rubber body 5, insulation sponge rubber body 5 sets up in the inside of current transformer body 1 and is wrapped with iron core and winding on the inner wall of insulation sponge rubber body 5, insulation sponge rubber body 5 is made through three element ethylene propylene rubber " " current transformer body 1 and mounting seat 2, mounting seat 2 sets up at the bottom of current transformer body 1, the top of mounting seat 2 and the bottom of current transformer body 1 are mutually contacted, the top of mounting seat 2 is fixedly connected with the plug 6, the bottom of current transformer body 1 and the position corresponding plug 6 are equipped with the slot 7, the top of plug 6 is through slot 7 and extends to its inside and is mutually contacted with the inner wall of slot 7".

[0003] Therefore, the above utility model patent discloses a current transformer aiming at strengthening insulation capacity, and discloses an insulation sponge rubber body 5 for wrapping iron core and winding. However, the technical scheme disclosed in the above utility model patent does not further disclose how to keep the current transformer isolated from the external environment and how to detect the insulation capacity of the current transformer in a vacuum state by means of a detection tool. UTILITY MODEL CONTENTS

[0004] The utility model provides a current transformer insulation detection device aiming at the condition of prior art and overcoming the above defects.

[0005] The utility model adopts the following technical scheme, a current transformer insulation detection device, comprising a tank body, wherein:

[0006] The tank body is provided with a receiving space, a top of the tank body is provided with an end cover, a side, away from the tank body, of the end cover is provided with a pressure relief structure, the pressure relief structure is detachably connected to the end cover, and the pressure relief structure is provided with a pressure relief channel in communication with the receiving space;

[0007] A side of the tank body is provided with a storage structure, the storage structure comprises a storage plate, a storage cover and a plurality of positioning columns, one side of the storage plate is integrally formed with the tank body, the other side of the storage plate is sealingly connected with the storage cover, one end of each positioning column is connected to the tank body, and the other end of each positioning column is screwed into a first positioning nail.

[0008] As a further preferred technical scheme of the above technical scheme, the storage cover is embedded with a viewing window.

[0009] As the further preferred technical scheme of the above technical scheme, the pressure relief structure comprises a joint and a pressure relief main body, one end of the joint is connected to the pressure relief main body, and the other end of the joint is connected to the external pressure relief device.

[0010] As the further preferred technical scheme of the above technical scheme, the pressure relief structure further comprises a plurality of second positioning nails, and the second positioning nails are screwed into the pressure relief main body.

[0011] As the further preferred technical scheme of the above technical scheme, the bottom of the tank body is provided with a self-pressure relief structure, and the self-pressure relief structure comprises an elastic base and a base connecting piece, one end of the base connecting piece is in communication with the tank body, and the other end of the base connecting piece is elastically connected with the elastic base.

[0012] The current transformer insulation detection device has the advantages that:

[0013] 1. After the external pressure relief device is communicated with the pressure relief structure, the tank body is inflated or deflated by the pressure relief device, so that the tank body is switched between the vacuum state and the normal pressure state, and the necessary environment for testing the insulation performance of the current transformer in the vacuum state is provided.

[0014] 2. The pressure of the containing space is higher than the normal pressure state to a certain extent, in order to avoid safety hazards, the elastic connection between the elastic base and the base connecting piece is automatically disabled under the action of pressure, so that a gap is formed between the elastic base and the base connecting piece, and then the pressure of the containing space gradually returns to the normal pressure state. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a perspective view of a top view angle of the present application.

[0016] Fig. 2 is a perspective view of a bottom view angle of the present application.

[0017] Fig. 3 is a front view of the present application.

[0018] The reference signs include: 110-tank body; 120-end cover; 130-pressure relief structure; 131-joint; 132-pressure relief main body; 133-second positioning nail; 140-warehouse entering structure; 141-warehouse entering plate; 142-warehouse cover; 143-positioning column; 144-first positioning nail; 145-visual window; 150-self-pressure relief structure; 151-elastic base; 152-base connecting piece; 160-flange structure. DETAILED DESCRIPTION

[0019] The utility model discloses a current transformer insulation detection device, below combining preferred embodiment (example 1), referring to the Figs. 1-3The utility model further describes the specific embodiment.

[0020] Referring to the drawings Figs. 1 to 3 , Figs. 1 to 3 The current transformer insulation detection device is shown from different perspectives.

[0021] Embodiment 1 (one side of the warehouse plate 141 is integrally formed with the tank body 110).

[0022] Preferably, the current transformer insulation detection device is used to enclose the current transformer to be measured (not shown in the figure, the same below), and comprises a tank body 110, wherein:

[0023] The tank body 110 is internally provided with a containing space (not shown in the figure, the same below) for containing the current transformer to be measured, the top of the tank body 110 is provided with an end cover 120, the side of the end cover 120 away from the tank body 110 is provided with a pressure relief structure 130, the pressure relief structure 130 is detachably connected to the end cover 120, and the pressure relief structure 130 is internally provided with a pressure relief channel (not shown in the figure, the same below) in communication with the containing space (via the end cover 120); so that after the external pressure relief device (not shown in the figure, the same below) is in communication with the pressure relief structure 130, the tank body 110 is inflated or deflated by the pressure relief device, so that the tank body 110 is switched between the vacuum state and the normal pressure state.

[0024] The side of the tank body 110 is provided with a warehouse access structure 140, the warehouse access structure 140 comprises a warehouse plate 141, a warehouse cover 142 and a plurality of positioning columns 143, one side of the warehouse plate 141 is integrally formed with the tank body 110, the other side of the warehouse plate 141 is sealingly connected with the warehouse cover 142, one end of each positioning column 143 is connected to the tank body 110, and the other end of each positioning column 143 is screwed into a first positioning nail 144, so as to realize the sealing connection between the warehouse plate 141 and the warehouse cover 142, so that the tank body 110 can maintain the vacuum state; when the first positioning nail 144 is unscrewed from the positioning column 143, the warehouse cover 142 can be opened relative to the warehouse plate 141, so as to facilitate the removal or placement of the current transformer to be measured (the measured current transformer) in the containing space.

[0025] Among them, the warehouse cover 142 is embedded with a viewing window 145, which facilitates the user to observe the state of the current transformer to be measured in the tank body 110, and facilitates the user to keep attention when the tank body 110 is switched between the vacuum state and the normal pressure state, so as to timely discover the safety hazard and timely deal with the safety hazard.

[0026] Among them, the pressure relief structure 130 comprises a joint 131 and a pressure relief main body 132, one end of the joint 131 is connected to the pressure relief main body 132, and the other end of the joint 131 is connected to the external pressure relief device.

[0027] The pressure relief structure 130 further comprises a plurality of second positioning nails 133, which are screwed into the pressure relief main body 132 to achieve detachable connection between the pressure relief main body 132 and the end cover 120.

[0028] The bottom of the tank body 110 is provided with a self-pressure relief structure 150, which comprises an elastic base 151 and a base connecting piece 152. One end of the base connecting piece 152 is in communication with the tank body 110, and the other end of the base connecting piece 152 is elastically connected with the elastic base 151. The elastic base 151 can maintain structural integrity in both normal pressure state and vacuum state. When the pressure in the accommodation space is higher than the normal pressure state to a certain extent due to user misoperation or other reasons (the current transformer to be tested does not need to test the electrical performance under pressure state), in order to avoid safety hazards, the elastic connection between the elastic base 151 and the base connecting piece 152 automatically fails under the action of pressure, so that a gap is formed between the elastic base 151 and the base connecting piece 152, and then the pressure in the accommodation space gradually returns to the normal pressure state. In particular, due to the gap between the elastic base 151 and the base connecting piece 152, the accommodation space is prevented from switching from high pressure state to normal pressure state instantaneously, which better guarantees safety, avoids possible damage to the current transformer to be tested, and also avoids personal injury to the user.

[0029] The current transformer insulation detection device further comprises a flange structure 160 located on both sides of the tank body 110. One side of the flange structure 160 is connected to the tank body 110, and the other side of the flange structure 160 is connected to an external auxiliary positioning structure (not shown in the figure) to keep the current transformer insulation detection device relatively stable.

[0030] Embodiment 2 (one side of the inlet plate 141 is fixedly connected to the tank body 110).

[0031] Preferably, the current transformer insulation detection device is used to enclose a current transformer to be tested (not shown in the figure, the same below), and the current transformer insulation detection device comprises a tank body 110, wherein:

[0032] The tank body 110 is internally provided with an accommodation space (not shown in the figure, the same below) for accommodating the current transformer to be tested. The top of the tank body 110 is provided with an end cover 120. The side of the end cover 120 away from the tank body 110 is provided with a pressure relief structure 130, which is detachably connected to the end cover 120. The pressure relief structure 130 is internally provided with a pressure relief channel (not shown in the figure, the same below) in communication with the accommodation space (via the end cover 120). Thus, after the pressure relief structure 130 is communicated with an external pressure relief device (not shown in the figure, the same below), the tank body 110 is switched between vacuum state and normal pressure state by the pressure relief device to charge or discharge air inside the tank body 110.

[0033] The side of the tank body 110 is provided with an access structure 140, which includes an access plate 141, an access cover 142, and a plurality of positioning columns 143. One side of the access plate 141 is fixedly connected with the tank body 110, and the other side of the access plate 141 is sealingly connected with the access cover 142. One end of each positioning column 143 is connected into the tank body 110, and the other end of each positioning column 143 is screwed into a first positioning nail 144 to achieve the sealing connection between the access plate 141 and the access cover 142, so that the tank body 110 can maintain a vacuum state. When the first positioning nail 144 is unscrewed from the positioning column 143, the access cover 142 can be opened relative to the access plate 141, facilitating the removal or placement of the current transformer to be tested (the current transformer has been tested) in the accommodation space.

[0034] Among them, the access cover 142 is embedded with a viewing window 145, which facilitates the user to observe the state of the current transformer to be tested in the tank body 110, and also facilitates the user to keep attention when switching the tank body 110 between the vacuum state and the normal pressure state, so as to timely discover and deal with safety hazards.

[0035] Among them, the access cover 142 is embedded with a viewing window 145, which facilitates the user to observe the state of the current transformer to be tested in the tank body 110, and also facilitates the user to keep attention when switching the tank body 110 between the vacuum state and the normal pressure state, so as to timely discover and deal with safety hazards.

[0036] Among them, the access cover 142 is embedded with a viewing window 145, which facilitates the user to observe the state of the current transformer to be tested in the tank body 110, and also facilitates the user to keep attention when switching the tank body 110 between the vacuum state and the normal pressure state, so as to timely discover and deal with safety hazards.

[0037] Among them, the access cover 142 is embedded with a viewing window 145, which facilitates the user to observe the state of the current transformer to be tested in the tank body 110, and also facilitates the user to keep attention when switching the tank body 110 between the vacuum state and the normal pressure state, so as to timely discover and deal with safety hazards.

[0038] The current transformer insulation detection device further comprises flange structures 160 located on both sides of the tank body 110, one side of the flange structure 160 being connected to the tank body 110, and the other side of the flange structure 160 being connected to an external auxiliary positioning structure (not shown in the figure) so that the current transformer insulation detection device remains relatively stable.

[0039] It is worth mentioning that the breaking parameters (a gap is generated between the elastic base 151 and the base connecting piece 152) of the elastic base 151 and other technical features involved in the utility model patent application should be regarded as prior art, and the specific structure, working principle and possible control mode and spatial arrangement mode involved in the technical features can be selected according to the conventional selection in the field, and should not be regarded as the invention point of the utility model patent, and the utility model patent will not be further expanded and described in detail.

[0040] For those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A current transformer insulation detection device, characterized in that: Comprising a tank, wherein: The tank body has a built-in accommodating space, an end cover is provided on the top of the tank body, a pressure-enhancing and relief structure is provided on the side of the end cover away from the tank body, the pressure-enhancing and relief structure is detachably connected to the end cover, and the pressure-enhancing and relief structure has a built-in pressure relief channel connected to the accommodating space; A storage entry structure is provided on the side of the tank body, which includes a storage entry plate, a storage cover and multiple positioning columns. One side of the storage entry plate is integrally formed with the tank body, and the other side of the storage entry plate is sealed with the storage cover. One end of each positioning column is connected to the tank body, and the other end of each positioning column is used to screw into the first positioning pin.

2. The current transformer insulation detection device according to claim 1, characterized in that: There is a viewing window embedded in the compartment cover.

3. The current transformer insulation detection device according to claim 1, characterized in that: The pressure-adding and relief structure includes a joint and a pressure-adding and relief body. One end of the joint is connected to the pressure-adding and relief body, and the other end of the joint is connected to an external pressure-adding and relief device.

4. The current transformer insulation detection device according to claim 3, characterized in that: The pressure adding and releasing structure further comprises a plurality of second positioning nails, which are screwed into the pressure adding and releasing body.

5. The current transformer insulation detection device according to claim 1, characterized in that: A self-decompression structure is provided at the bottom of the tank body. The self-decompression structure includes an elastic base and a base connector. One end of the base connector is communicated with the tank body, and the other end of the base connector is elastically connected to the elastic base.

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