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A Double Grounding Device Applied to Substation Guardrail

A double grounding and substation technology, applied in the direction of substation grounding layout, etc., can solve problems such as unreliable contact, loose bolts, poor grounding, etc., and achieve the effect of increasing the effective contact surface, increasing the degree of firmness, and increasing the contact area

Active Publication Date: 2018-04-17
RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] First, not only the effective cross-section of the grounding connection cannot be reached, but also the bolts are prone to loosening and the grounding effect is poor during long-term use.
[0004] Second, because the connection of the grounding wire is exposed to the air for a long time, it will be corroded for a long time, and then there will be a series of problems such as looseness and unreliable contact, which will affect the effect of grounding
[0005] Third, only single-wire grounding is used. Once the grounding wire is poorly grounded, there is a high risk of electric shock, and the consequences of electric shock are irreversible.

Method used

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  • A Double Grounding Device Applied to Substation Guardrail
  • A Double Grounding Device Applied to Substation Guardrail
  • A Double Grounding Device Applied to Substation Guardrail

Examples

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Embodiment Construction

[0041] Such as figure 1 with figure 2 As shown, a dual grounding device applied to a substation guardrail 1 includes a U-shaped grounding block 2 arranged below the guardrail 1 side, and the open end of the grounding block 2 is fixedly connected to the guardrail 1. As a specific implementation, in this embodiment, the ground block 2 is fixedly connected to the guardrail 1 by welding. A grounding wire 4 is provided on the U-shaped bottom surface of the grounding block 2 opposite to the guardrail 1, and the grounding wire 4 is an aluminum grounding wire 4 with a rectangular cross section. The upper end of the grounding wire 4 is fixedly connected to the grounding block 2 through a connecting bolt 5 and a lock nut 6, and the connecting bolt 5 passes through the guardrail 1 and connects to a grounding post arranged inside the guardrail 1. 3 connected. The lower ends of the grounding pole 3 and the grounding wire 4 respectively extend into the lower part of the ground and are conn...

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PUM

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Abstract

The present invention discloses a dual-grounding device applied to a transformer station guardrail. The device comprises a U-shaped grounding block arranged at the lower end of the guardrail, and the surface, opposite to the guardrail, of the grounding block is provided with grounding wires. The upper end of the grounding wires is fixedly connected with the grounding block through connection bolts and lock nuts, and the connection bolts pass through the guardrail and then are connected with a grounding pole arranged in the guardrail. The lower ends of the grounding pole and the grounding wires are connected with a grounding grid, the upper end of the grounding pole is provided with an upper location boss, and the upper location boss is provided with a spring pin. The middle portion o the grounding pole is provided with a lower location boss which is matched with an annular boss arranged at the lower end of the guardrail, and a jack is arranged between the upper location boss and the lower location boss. A shielding cover is arranged at the external portion, located at the grounding block, of the guardrail. The dual-grounding device applied to the transformer station guardrail employs the double grounding wires to greatly improve the grounding reliability.

Description

Technical field [0001] The invention relates to a grounding device, in particular to a double grounding device applied to a substation guardrail. Background technique [0002] At present, in the construction process of substation engineering, when the construction personnel ground the stainless steel guardrail handrail, the general method is to weld stainless steel bolts on the steel pipe, and then connect with the main grounding grid after connecting with the flexible wire and the bolt. This method mainly has the following shortcomings: [0003] First, not only the effective cross-section of the ground connection is not reached, but also the bolts are prone to looseness and poor grounding effect during long-term use. [0004] Second, because the connection of the grounding wire is exposed to the air for a long time, it will be corroded for a long time, and a series of problems such as loosening and unreliable contact will occur, which affects the grounding effect. [0005] Third, on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B5/01
CPCH02B5/01
Inventor 武玉亮史纪进郭峰杨慧颖姜兆庆李本浩陈永辉马晓琳
Owner RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER
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