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Device and method for reducing impulse grounding impedance value

A technology of impact grounding impedance and horizontal grounding electrode is applied in the field of reducing the impact grounding impedance value device and reducing the impact grounding impedance value, which can solve the problems of cumbersome manufacturing process and later maintenance, inconvenient operation and later maintenance of power system equipment, and complicated mechanism , to achieve the effect of simple and reliable assembly structure, simple and easy working process, and uniform dispersion.

Active Publication Date: 2013-04-10
NINGBO ELECTRIC POWER BUREA +1
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] At present, in the existing lightning protection ground pole equipment, it usually adopts a composite structure composed of multilayer materials such as carbon fiber tensile reinforcement and carbon fiber graphite outside the reinforcement. Although this structure can meet the basic lightning protection requirements, due to its The mechanism itself is complex, and the manufacturing process and post-maintenance are relatively cumbersome, which causes a lot of inconvenience to the normal operation and post-maintenance of power system equipment

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  • Device and method for reducing impulse grounding impedance value
  • Device and method for reducing impulse grounding impedance value
  • Device and method for reducing impulse grounding impedance value

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Embodiment Construction

[0020] The core of the present invention is to provide a device for reducing the impact grounding impedance value, which can reduce the impact grounding impedance value during the operation of electric equipment more simply and easily; Impulse ground resistance value method.

[0021] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Please refer to figure 1 with figure 2 , figure 1 A schematic diagram of the assembly structure of the device for reducing the impact grounding impedance value provided by a specific embodiment of the present invention; figure 2 for figure 1 Schematic diagram of the assembly structure of the middle drainage conductor part.

[0023] In a specific embodiment, the device for reducing the impact grounding impedance value provided by the present inven...

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Abstract

The invention discloses a device for reducing an impulse grounding impedance value. The device fro reducing the impulse grounding impedance value comprises a drainage conductor arranged on a tower horizontal grounding electrode. A plurality of shunt conductors are arranged on the periphery of the drainage conductor and are evenly distributed in sequence along the extending direction of an axis of the drainage conductor. During an operation process, the plurality of shunt conductors are welded on the drainage conductor, and therefore an 'end effect' of the grounding electrode is restrained, broken stream is enabled to be more even, middle broken stream capacity of the drainage conductor is fully used, a grounding conductor is used more fully, a whole assembling structure is simple and reliable, the operation process is convenient and easy to carry out, the impulse grounding impedance value can be greatly reduced, a lightning withstand level of a electric transmission and distribution circuit is obviously improved, trip phenomena caused by lightning stroke is reduced, and safe and stable operation of an electric system is endured. The invention further discloses a method which uses the device and used for reducing the impulse grounding impedance value.

Description

technical field [0001] The invention relates to the technical field of auxiliary equipment for power transmission and transformation equipment, in particular to a device for reducing the impact grounding impedance value. The invention also relates to a method for reducing the impact grounding resistance value using the device. Background technique [0002] In the current power system operation and maintenance process, most power transmission and transformation line accidents are caused by tripping caused by lightning strikes on transmission lines or towers. Improving the lightning resistance level of power transmission and transformation lines and reducing the lightning trip rate are of great significance to the safe operation of power systems. In the design of line towers, the value of the impact grounding impedance of the grounding device directly affects the lightning protection effect of the line. Therefore, it is of great significance to optimize the structural design...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/66H01R43/00
Inventor 曹炯董建达周立波张建汪从敏
Owner NINGBO ELECTRIC POWER BUREA
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