CN215578040U - A lightning arrester grounding wire lead-out device for transformers - Google Patents

A lightning arrester grounding wire lead-out device for transformers Download PDF

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Publication number
CN215578040U
CN215578040U CN202120503826.5U CN202120503826U CN215578040U CN 215578040 U CN215578040 U CN 215578040U CN 202120503826 U CN202120503826 U CN 202120503826U CN 215578040 U CN215578040 U CN 215578040U
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China
Prior art keywords
transformer
lightning arrester
insulator
welding base
transformer body
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Active
Application number
CN202120503826.5U
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Chinese (zh)
Inventor
李振
张新青
刘普峰
祝建立
何固俊
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Shandong Dachi Electric Co Ltd
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Shandong Dachi Electric Co Ltd
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Priority to CN202120503826.5U priority Critical patent/CN215578040U/en
Application granted granted Critical
Publication of CN215578040U publication Critical patent/CN215578040U/en
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Abstract

The utility model relates to a partial component of a transformer, in particular to a ground wire leading-out device of a lightning arrester for the transformer. This arrester earth connection eduction gear for transformer, including the transformer body, the sleeve pipe is installed to transformer body top, and the connection of transformer body lateral part is equipped with radiator, characterized by: the lightning arrester installed on the transformer body is connected to the outer side of the sleeve, the lightning arrester is connected with a grounding lead, the grounding lead is fixed through an insulator and leads to the lower portion of the transformer body to be grounded, the insulator is installed on the welding base, and the welding base is welded to the radiator. The utility model has the beneficial effects that: the workload of field installation of the transformer is reduced, the using amount of the grounding wire of the lightning arrester is reduced, the occupied area of the transformer is reduced, the capital investment is reduced for the construction of the transformer substation, and the operation and maintenance after the transformer is put into operation are facilitated.

Description

Arrester ground wire leading-out device for transformer
(I) technical field
The utility model relates to a partial component of a transformer, in particular to a ground wire leading-out device of a lightning arrester for the transformer.
(II) background of the utility model
At the present stage, in order to prevent the transformer from being struck by lightning, the lightning arrester is often additionally arranged beside a transformer bushing, and a grounding lead of the lightning arrester cannot be directly connected to a transformer oil tank, because if the grounding lead of the lightning arrester is directly connected to the transformer oil tank, the transformer oil tank has certain residual voltage when the lightning arrester is broken down, and thus the transformer is not beneficial to safe operation. Therefore, when the transformer is installed, a support is often installed beside the transformer as a foundation, an insulator is additionally installed on the support, and the lightning arrester grounding lead is led down to be grounded through the insulator on the support. Although the phenomenon that the transformer oil tank is electrified is solved, the workload of installation workers is increased, the using amount of the grounding wire of the arrester is increased, the occupied area of the transformer is increased, and the capital investment of transformer substation construction is increased.
Disclosure of the utility model
In order to make up for the defects of the prior art, the utility model provides the grounding wire leading-out device of the arrester for the transformer, which reduces the installation workload, the occupied area, the cost and the operation and maintenance convenience.
The utility model is realized by the following technical scheme:
the utility model provides a lightning arrester earth connection eduction gear for transformer, includes the transformer body, and the sleeve pipe is installed to transformer body top, and the connection of transformer body lateral part is equipped with radiator, characterized by: the lightning arrester installed on the transformer body is connected to the outer side of the sleeve, the lightning arrester is connected with a grounding lead, the grounding lead is fixed through an insulator and leads to the lower portion of the transformer body to be grounded, the insulator is installed on the welding base, and the welding base is welded to the radiator.
The insulator includes upper insulator and lower insulator, and upper insulator installs on last welding base, and lower insulator installs under on the welding base.
The upper welding base is welded at the upper end part of the radiator, and the lower welding base is welded at the lower end part of the radiator.
The utility model has the beneficial effects that: the workload of field installation of the transformer is reduced, the using amount of the grounding wire of the lightning arrester is reduced, the occupied area of the transformer is reduced, the capital investment is reduced for the construction of the transformer substation, and the operation and maintenance after the transformer is put into operation are facilitated.
(IV) description of the drawings
The utility model will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the present invention;
in the figure, 1 transformer body, 2 sleeve pipes, 3 radiator, 4 lightning arrester, 5 grounding lead, 6 insulator, 7 welding base, 8 upper insulator, 9 lower insulator, 10 upper welding base and 11 lower welding base.
(V) detailed description of the preferred embodiments
The attached drawing is an embodiment of the utility model. The transformer comprises a transformer body 1, a sleeve 2 is installed above the transformer body 1, a radiator 3 is connected to the side of the transformer body 1, a lightning arrester 4 installed on the transformer body 1 is connected to the outer side of the sleeve 2, the lightning arrester 4 is connected with a grounding lead 5, the grounding lead 5 is fixed through an insulator 6 and leads to the lower portion of the transformer body 1 to be grounded, the insulator 6 is installed on a welding base 7, and the welding base 7 is welded on the radiator 3. The insulator 6 comprises an upper insulator 8 and a lower insulator 9, the upper insulator 8 is arranged on an upper welding base 10, and the lower insulator 9 is arranged on a lower welding base 11. The upper welding base 10 is welded to the upper end of the heat sink 3, and the lower welding base 11 is welded to the lower end of the heat sink 3.
The grounding wire leading-out device of the arrester for the transformer is adopted, the grounding wire leading-out device is completed when the transformer is installed on site, the upper welding base 10 and the lower welding base 11 are respectively welded at the upper end and the lower end of the radiator 3, the upper insulator is installed on the upper welding base 10, the lower insulator 9 is installed on the lower welding base 11, the grounding lead 5 of the arrester 4 is fixed through the upper insulator 8 and the lower insulator 9 and is led to the lower part of the transformer body 1 to be grounded, and the grounding lead 5 of the arrester 4 is insulated from the radiator 3 due to the support of the insulator 6, so that the possibility that the transformer shell is electrified after the arrester 4 is punctured is avoided. The transformer is mainly applied to power transformers with the voltage class of 35kV and above.

Claims (3)

1.一种变压器用避雷器接地线引出装置,包括变压器本体(1),变压器本体(1)上方安装有套管(2),变压器本体(1)侧部连接设有散热器(3),其特征是:所述套管(2)外侧连接设有安装于变压器本体(1)上的避雷器(4),避雷器(4)连接有接地引线(5),接地引线(5)通过绝缘子(6)固定而引至变压器本体(1)下部接地,绝缘子(6)安装于焊接底座(7)上,焊接底座(7)焊接于散热器(3)上。1. A lightning arrester grounding wire lead-out device for a transformer, comprising a transformer body (1), a bushing (2) installed above the transformer body (1), and a radiator (3) connected to the side of the transformer body (1), the The characteristic is: the outer side of the bushing (2) is connected with a lightning arrester (4) installed on the transformer body (1), the lightning arrester (4) is connected with a grounding lead (5), and the grounding lead (5) passes through the insulator (6) The insulator (6) is mounted on the welding base (7), and the welding base (7) is welded on the radiator (3). 2.根据权利要求1所述的变压器用避雷器接地线引出装置,其特征是:所述绝缘子(6)包括上绝缘子(8)和下绝缘子(9),上绝缘子(8)安装于上焊接底座(10)上,下绝缘子(9)安装于下焊接底座(11)上。2. The lightning arrester grounding wire lead-out device for transformers according to claim 1, wherein the insulator (6) comprises an upper insulator (8) and a lower insulator (9), and the upper insulator (8) is mounted on the upper welding base (10) The upper and lower insulators (9) are mounted on the lower welding base (11). 3.根据权利要求2所述的变压器用避雷器接地线引出装置,其特征是:所述上焊接底座(10)焊接于散热器(3)上端部,下焊接底座(11)焊接于散热器(3)下端部。3. The arrester grounding wire lead-out device for transformers according to claim 2, wherein the upper welding base (10) is welded to the upper end of the radiator (3), and the lower welding base (11) is welded to the radiator (11). 3) Lower end.
CN202120503826.5U 2021-03-10 2021-03-10 A lightning arrester grounding wire lead-out device for transformers Active CN215578040U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120503826.5U CN215578040U (en) 2021-03-10 2021-03-10 A lightning arrester grounding wire lead-out device for transformers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120503826.5U CN215578040U (en) 2021-03-10 2021-03-10 A lightning arrester grounding wire lead-out device for transformers

Publications (1)

Publication Number Publication Date
CN215578040U true CN215578040U (en) 2022-01-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120503826.5U Active CN215578040U (en) 2021-03-10 2021-03-10 A lightning arrester grounding wire lead-out device for transformers

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CN (1) CN215578040U (en)

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Date Code Title Description
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A grounding wire lead out device for lightning arrester used in transformers

Granted publication date: 20220118

Pledgee: Yunnan International Trust Co.,Ltd.

Pledgor: SHANDONG DACHI ELECTRIC Co.,Ltd.|Shuifa Chixiang electric (Shandong) Co.,Ltd.|SHANDONG DACHI HIGH VOLTAGE SWITCHGEAR Co.,Ltd.

Registration number: Y2025980008599

PE01 Entry into force of the registration of the contract for pledge of patent right