Vertical installation structure of current transformer of inflatable switch cabinet

Abstract

The utility model relates to a vertical installation structure of a current transformer of an inflatable switch cabinet. The structure comprises a current transformer installation plate and an installation plate support. The current transformer mounting plate comprises a mounting plate front surface, two mounting plate side surfaces and a bottom surface, and the bottom surface is provided with a bottom surface mounting hole; a current transformer mounting hole for mounting a current transformer is formed in the front surface of the mounting plate; the current transformer is mounted on the current transformer mounting hole; first cabinet body mounting holes for mounting the current transformer mounting plate on a cabinet body are formed in the two side surfaces; the installation plate support comprises an installation plate support front face and two installation plate support side faces, front face installation holes are formed in the installation plate support front face, and the bottom face installation holes of the current transformer installation plate and the installation plate support front face installation holes are fixed. According to the utility model, the problem that the temperature rise of the feed line bushing exceeds the limit due to the installation of the current transformer at the bushing is effectively solved; the device is suitable for current transformers of different models and inflatable switch cabinets of different models.

Description

Technical Field

[0001] This utility model relates to a current transformer installation structure, specifically to a vertical installation structure for a gas-insulated switchgear that solves the problem of excessive temperature rise in the feeder bushing caused by the installation of a current transformer at the bushing. This structure is simple, adaptable, and stable in installation. Background Technology

[0002] Currently, a common method for installing current transformers in gas-insulated switchgear is through a bushing installation. Specifically, the current transformer 3 is fitted onto the feeder bushing 4 of the switchgear and reliably fixed using a horizontal mounting plate. This installation method effectively addresses the need for automatic current monitoring in situations where multiple feeder cables are connected in parallel. For example... Figure 4 As shown, Figure 4 This is a schematic diagram of a common method for installing current transformers. Figure 4 In the middle, the current transformer 3 is mounted on the feeder bushing 4 of the switch cabinet and fixed by the horizontal mounting plate 5. The right end of the current transformer 3 is a multi-channel cable 6. This installation method is not stable.

[0003] Furthermore, in certain special cases, such as when monitoring the temperature rise of switchgear, it is necessary to change the current transformer from bushing mounting to vertical mounting to solve the problem of excessive temperature rise in the feeder bushing. This involves the issue of how to reliably and vertically fix the current transformer inside the switchgear. Utility Model Content

[0004] To address the aforementioned problems, the main objective of this utility model is to provide a vertical installation structure for current transformers in a gas-insulated switchgear that is simple in structure, highly adaptable, and stable in installation, which solves the problem of excessive temperature rise in the feeder bushing caused by the installation of current transformers at the bushing.

[0005] This utility model solves the above-mentioned technical problems through the following solution: a vertical mounting structure for current transformers in a gas-insulated switchgear, the vertical mounting structure for current transformers in the gas-insulated switchgear includes: a current transformer mounting plate and a mounting plate bracket.

[0006] The current transformer mounting plate includes a front side, two sides, and a bottom side. The bottom side has a bottom mounting hole. The front side has a current transformer mounting hole for mounting the current transformer. The current transformer is mounted in the current transformer mounting hole. Both sides have a first cabinet mounting hole for mounting the current transformer mounting plate onto the cabinet.

[0007] The mounting plate bracket includes a front side and two side sides. The front side of the mounting plate bracket has a front mounting hole, and the two side sides have a second cabinet mounting hole for mounting on the cabinet. The bottom mounting hole of the current transformer mounting plate is fixed to the front mounting hole of the mounting plate bracket.

[0008] In a specific embodiment of this utility model, the current transformer mounting holes are of various sizes.

[0009] In a specific embodiment of this utility model, the current transformer mounting holes are of two different sizes, with the diameter of the larger hole being 1.5-3 times that of the smaller hole.

[0010] In a specific embodiment of this utility model, the front, two sides, and bottom of the current transformer mounting plate are formed by bending the same plate, and the bending points are all rounded; the thickness of the current transformer mounting plate ranges from 1 to 3 mm.

[0011] In a specific embodiment of this utility model, the current transformer is installed on the current transformer mounting hole by screw mounting or bayonet fixing.

[0012] In a specific embodiment of this utility model, the front and two sides of the mounting plate bracket are formed by bending the same plate, and the bending points are all rounded; the thickness of the mounting plate bracket ranges from 1 to 3 mm.

[0013] In a specific embodiment of this utility model, the current transformer mounting plate is a mounting plate made of cold-rolled steel plate or a mounting plate made of aluminum-zinc coated plate.

[0014] In a specific embodiment of this utility model, the mounting plate bracket is a bracket made of cold-rolled steel plate or a bracket made of aluminum-zinc coated plate.

[0015] The positive and progressive effects of this utility model are as follows: This utility model effectively solves the problem of excessive temperature rise in the feeder bushing caused by the installation of a current transformer at the bushing; it is adaptable to different models of current transformers and different models of gas-filled switchgear. Attached Figure Description

[0016] Figure 1 This is a schematic diagram (rendering) of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the overall structure of the current transformer mounting plate in this utility model.

[0018] Figure 3 This is a schematic diagram of the overall structure of the mounting plate bracket in this utility model.

[0019] Figure 4 This is a schematic diagram of a common method for installing current transformers.

[0020] The following are the names corresponding to the reference numerals in this utility model:

[0021] Figure 1-3 In the middle: current transformer mounting plate 1, mounting plate bracket 2, current transformer 3.

[0022] Mounting plate front 101, mounting plate two sides 102, current transformer mounting hole 103, first cabinet mounting hole 104.

[0023] Mounting plate bracket front 201, mounting plate bracket two sides 202, front mounting hole 203, second cabinet mounting hole 204.

[0024] Figure 4 3. Current transformer, 4. Feeder bushing, 5. Horizontal mounting plate, 6. Multi-channel cable. Detailed Implementation

[0025] The preferred embodiments of this utility model are given below with reference to the accompanying drawings to illustrate the technical solution of this utility model in detail.

[0026] Figure 1 This is a schematic diagram (rendering) of the overall structure of this utility model. Figure 2 This is a schematic diagram of the overall structure of the current transformer mounting plate 1 in this utility model. Figure 3 This is a schematic diagram of the overall structure of the mounting plate bracket 2 in this utility model. Figure 1-3 As shown: This utility model proposes a vertical mounting structure for a current transformer in a gas-insulated switchgear. The vertical mounting structure for the current transformer in the gas-insulated switchgear includes: a current transformer mounting plate 1 and a mounting plate bracket 2. The current transformer mounting plate 1 includes a front side 101, two side sides 102, and a bottom surface. The bottom surface is provided with a bottom mounting hole. The front side 101 of the mounting plate is provided with a current transformer mounting hole 103 for mounting a current transformer 3. The current transformer 3 is mounted on the current transformer mounting hole 103. Both side sides are provided with first cabinet mounting holes 104 for mounting the current transformer mounting plate 1 onto the cabinet body.

[0027] The mounting plate bracket 2 of this utility model includes a front side 201 and two side sides 202. The front side of the mounting plate bracket is provided with a front mounting hole 203, and the two side sides 201 of the mounting plate bracket are provided with a second cabinet mounting hole 204 for mounting on the cabinet.

[0028] The mounting holes on the bottom surface of the current transformer mounting plate 1 of this utility model are fixed to the mounting holes 203 on the front surface of the mounting plate bracket 2.

[0029] The mounting plate bracket 2 of this utility model is installed together with the cabinet through the second cabinet mounting hole 204.

[0030] The current transformer mounting hole 103 is available in various sizes; the current transformer mounting hole 103 is available in two sizes, with the diameter of the larger hole being 1.5-3 times that of the smaller hole. In the specific implementation process, the above parameters are selected according to the specific requirements, and different values ​​or ranges are selected.

[0031] The front, two sides, and bottom of the current transformer mounting plate 1 are formed by bending the same plate, and all bends are rounded. The thickness of the current transformer mounting plate 1 ranges from 1 to 3 mm. In the specific implementation process, the above parameters are selected according to the specific requirements.

[0032] The current transformer 3 can be installed on the current transformer mounting hole by screw mounting or by bayonet fixing.

[0033] The front 201 and two sides 202 of the mounting plate bracket are formed by bending the same plate, with rounded corners at all bends; the thickness of the mounting plate bracket 2 ranges from 1 to 3 mm. In specific implementation, different values ​​or ranges of the above parameters are selected according to specific requirements.

[0034] In practical implementation, the current transformer mounting plate 1 can be made of cold-rolled steel plate or aluminum-zinc coated steel plate. The mounting plate bracket 2 can be made of cold-rolled steel plate or aluminum-zinc coated steel plate. Other materials may also be used in practical implementation.

[0035] In the specific implementation process, the current transformer mounting plate 1 is fixed to the current transformer through the front mounting holes, while the mounting holes on both sides are fixed to the left and right side panels of the cabinet. The distance between these holes can be adjusted according to the pre-drilled hole spacing on the left and right side panels of the cabinet, thus accommodating different models of gas-insulated switchgear. Simultaneously, the bottom side mounting holes of the current transformer mounting plate 1 are fixed to the front mounting holes of the mounting plate bracket 2, and the two sides of the mounting plate bracket 2 are also fixed to the left and right side panels of the cabinet. In this way, the current transformer mounting plate 1 and the mounting plate bracket 2 are reliably connected to the left and right side panels of the switchgear as a whole.

[0036] The distance between the mounting holes on both sides of the mounting plate bracket 2 can be set, or the distance between the pre-reserved holes on the left and right side panels of the cabinet can be adjusted, which can also be adapted to different models of gas-filled switch cabinets.

[0037] The mounting holes on the front of the current transformer mounting plate 1 can be adjusted according to the different mounting hole spacing of the current transformer, so as to adapt to the unobstructed installation of different models of current transformers.

[0038] The advantages of this utility model patent are that it solves the problem of excessive temperature rise in the feeder bushing caused by the installation of a current transformer at the bushing, and it is also compatible with different models of current transformers and different models of gas-filled switchgear.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A vertical mounting structure for current transformers in a gas-insulated switchgear, characterized in that: The vertical mounting structure of the current transformer in the gas-insulated switchgear includes: a current transformer mounting plate and a mounting plate bracket. The current transformer mounting plate includes a front side, two sides, and a bottom side. The bottom side is provided with bottom mounting holes. The front side of the mounting plate is provided with current transformer mounting holes for mounting the current transformer. The current transformer is mounted on the current transformer mounting holes. Both sides are provided with first cabinet mounting holes for mounting the current transformer mounting plate on the cabinet. The mounting plate bracket includes a front side and two side sides. The front side of the mounting plate bracket has a front mounting hole, and the two side sides have a second cabinet mounting hole for mounting on the cabinet. The bottom mounting hole of the current transformer mounting plate is fixed to the front mounting hole of the mounting plate bracket.

2. The vertical mounting structure of the current transformer in the gas-insulated switchgear according to claim 1, characterized in that: The mounting holes for current transformers come in various sizes.

3. The vertical mounting structure of the current transformer in the gas-insulated switchgear according to claim 1, characterized in that: The mounting holes for current transformers come in two different sizes, with the diameter of the larger hole being 1.5 to 3 times that of the smaller hole.

4. The vertical mounting structure of the current transformer in the gas-insulated switchgear according to claim 1, characterized in that: The front, two sides, and bottom of the current transformer mounting plate are all made from the same piece of plate bent over, and all bends are rounded. The thickness of the current transformer mounting plate ranges from 1 to 3 mm.

5. The vertical mounting structure of the current transformer in the gas-insulated switchgear according to claim 1, characterized in that: The current transformer is installed on the mounting hole using either screws or bayonet mounting.

6. The vertical mounting structure of the current transformer in the gas-insulated switchgear according to claim 1, characterized in that: The front and two sides of the mounting plate bracket are made from the same bent plate, with rounded corners at all bends; the thickness of the mounting plate bracket ranges from 1 to 3 mm.

7. The vertical mounting structure of the current transformer in the gas-insulated switchgear according to any one of claims 1-6, characterized in that: The mounting plate for the current transformer is made of cold-rolled steel sheet or aluminum-zinc coated sheet.

8. The vertical mounting structure of the current transformer in the gas-insulated switchgear according to any one of claims 1-6, characterized in that: The mounting plate bracket is made of cold-rolled steel plate or aluminum-zinc coated plate.

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