CN216487635U - 10kV Transformer Station Fixed Grounding Device - Google Patents

Abstract

The utility model relates to a fixed grounding device of a 10kV transformer platform, which is fixedly connected to a rack of the 10kV transformer platform and comprises a cross arm and grounding assemblies, wherein the grounding assemblies are connected to the cross arm, the number of the grounding assemblies is the same as that of 10kV drop-out fuses, each grounding assembly comprises a 10kV post insulator, a wiring board and a 10kV grounding hanging ring, the lower end of each 10kV post insulator is connected with the 10kV grounding hanging ring, the wiring board is fastened between the 10kV post insulator and the 10kV grounding hanging ring, one end of each wiring board is connected with the lower end lead of the corresponding 10kV drop-out fuse, and the other end of each wiring board is connected with the high-voltage lead of the 10kV transformer. The utility model does not change the structure of the original transformer rack, has simple manufacture, low cost, easy operation, beautiful appearance, direct whiteness, convenient and simple electricity test and wire hanging. When the 10kV transformer station overhauls the operation, shortened the time that the line had a power failure and arranged the safety technical measure, there is reliable ground connection 10kV side, has effectively improved operation personnel's safety guarantee.

Description

10kV Transformer Station Fixed Grounding Device

technical field

The utility model relates to the field of power supply, in particular to a fixed grounding device for a 10kV transformer table.

Background technique

When working on distribution lines and distribution equipment, there are safety technical measures such as power failure, power inspection, and installation of grounding wires. The installation of grounding wire is an important safety measure and a necessary guarantee to ensure personal safety.

The existing 10kV old-fashioned transformer station does not have such safety protection measures, and there is no reliable installation ground wire position. When the transformer is outaged and repaired, in order to prevent reverse power transmission due to the aging of the falling porcelain sleeve, some hang the grounding wire on the lower terminal of the falling fuse, and some hang the grounding wire on the primary bushing of the transformer. As a result, the maintenance personnel are more random when installing the ground wire, which increases the equipment failure rate. However, the shape of the terminal at the lower end of the drop fuse does not match the ground wire clip, resulting in insufficient contact area, and it is also easy to cause damage to the body of the drop fuse, which brings great safety hazards to maintenance personnel.

SUMMARY OF THE INVENTION

The technical problem to be solved by the utility model is to provide a fixed grounding device for a 10kV transformer table, so as to solve the safety maintenance problem of the existing 10kV transformer table without a grounding device.

To achieve the above object, the present utility model adopts the following technical solutions to realize:

10kV transformer platform fixed grounding device, the fixed grounding device is fixedly connected to the 10kV transformer platform frame, including cross arm, grounding components, and grounding components connected to the cross arm, and the number of grounding components is the same as the number of 10kV drop-out fuses , the grounding components include 10kV pillar insulators, wiring boards, and 10kV grounding rings. The lower end of the 10kV pillar insulators is connected to the 10kV grounding rings, and the wiring boards are fastened between the 10kV pillar insulators and the 10kV grounding rings. One end of the wiring board is connected to the corresponding 10kV grounding ring. The lower end lead of the drop-out fuse is connected, and the other end is connected to the high voltage lead of the 10kV transformer.

The wiring board is an aluminum plate.

The wiring board is connected with the lower end lead of the 10kV drop-out fuse through a soft copper wire, the two ends of the soft copper wire are provided with copper tin-plated terminals, and the surface of the soft copper wire is provided with an insulating layer.

Compared with the prior art, the beneficial effects of the present utility model are:

The utility model does not change the structure of the original transformer stand, is simple to manufacture, has low cost, is easy to operate, is beautiful and straightforward, and is convenient and simple to check electricity and install grounding wires. During the maintenance operation of the 10kV transformer station, the time for laying out safety technical measures for line power failure is shortened, and the 10kV side has reliable grounding, which standardizes the safety measures and effectively improves the safety of operators.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

FIG. 2 is a top view of the utility model.

FIG. 3 is a schematic structural diagram of a fixed grounding device.

In the picture: 10kV transformer stand 1, cross arm 2, grounding assembly 3, 10kV drop-out fuse 4, 10kV drop-out fuse lower end lead 5, 10kV transformer high-voltage lead 6, soft copper wire 7, 10kV pillar Insulator 31 , wiring board 32 , 10kV grounding ring 33 .

Detailed ways

The specific embodiments of the present utility model are further described below in conjunction with the accompanying drawings:

As shown in Figure 1 to Figure 3, the 10kV transformer platform is fixed to the grounding device. The fixed grounding device is fixedly connected to the platform 1 of the 10kV transformer platform, including a cross arm 2 and a grounding component 3. The cross arm 2 is connected to the ground component 3, which is grounded The number of components 3 is the same as the number of 10kV drop-out fuses 4. The grounding component 3 includes 10kV post insulators 31, terminal blocks 32, 10kV grounding rings 33, the lower end of 10kV post insulators 31 is connected to 10kV grounding rings 33, and 10kV post insulators The wiring board 32 is fastened between 31 and the 10kV grounding hanging ring 33, and the resistance between the wiring board 32 and the 10kV grounding hanging ring 33 is 66.64 μΩ, which meets the standard of grounding resistance≤10Ω.

One end of the wiring board 32 is connected to the lower end lead 5 of the corresponding 10kV drop-out fuse, and the other end is connected to the high voltage lead 6 of the 10kV transformer.

The wiring board 32 is an aluminum plate.

The wiring board is connected to the lower lead 5 of the 10kV drop-out fuse through a soft copper wire 7, the two ends of the soft copper wire are provided with copper tin-plated terminals, and the surface of the soft copper wire is provided with an insulating layer.

During the maintenance operation of the 10kV transformer station, the 10kV grounding ring 33 is used to install the grounding wire, and the 10kV side has a reliable grounding, which improves the safety of the operators.

For those of ordinary skill in the art, the above utility model can also be improved and modified without departing from the principle of the present utility model. These improvements and modifications also fall into the protection of the claims of the present utility model. within the range. The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its concept shall be included within the protection scope of the present invention.

Claims (3)

1.10kV transformer platform fixed grounding device, it is characterized in that, described fixed grounding device is fixedly connected on the bench of 10kV transformer platform, including cross arm, grounding assembly, connecting ground assembly on the cross arm, the number of grounding assemblies and 10kV drop type The number of fuses is the same. The grounding components include 10kV post insulators, terminal blocks, and 10kV grounding rings. The lower end of the 10kV post insulators is connected to the 10kV grounding rings, and the terminal blocks are fastened between the 10kV post insulators and the 10kV grounding rings. One end is connected with the lower end lead of the corresponding 10kV drop-out fuse, and the other end is connected with the high voltage lead of the 10kV transformer. 2 . The 10kV transformer platform fixed grounding device according to claim 1 , wherein the wiring board is an aluminum plate. 3 . 3 . The 10kV transformer table fixed grounding device according to claim 1 , wherein the terminal board is connected to the lower end lead of the 10kV drop-out fuse through a soft copper wire. 4 .

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