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Power transmission line tower step voltage suppression method

A transmission line, step voltage technology, applied in circuit devices, emergency protection circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, etc. , to reduce the electric shock range, increase the contact resistance, and improve the suppression effect.

Active Publication Date: 2020-10-16
SHENZHEN POWER SUPPLY BUREAU
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a ground short-circuit fault occurs on a high-voltage transmission line, it will have a serious electromagnetic impact on the surrounding environment. For example, if a ground short-circuit fault occurs on a transmission line tower, it will cause stepping electric shock to nearby personnel and endanger personal safety.

Method used

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  • Power transmission line tower step voltage suppression method
  • Power transmission line tower step voltage suppression method
  • Power transmission line tower step voltage suppression method

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Embodiment Construction

[0034] In order to make the purpose, technical solution and advantages of the present application clearer, the method for suppressing the step voltage of the transmission line tower of the present application will be further described in detail through the following embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0035] The serial numbers assigned to components in this document, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "connection" mentioned in this application all include direct and indirect connection (connection) unless otherwise specified. In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizon...

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Abstract

The invention relates to a step voltage suppression method for a power transmission line tower. The method comprises the steps: laying a grounding device on the ground around a power transmission linetower, and detecting a step voltage parameter of the power transmission line tower, wherein the grounding device comprises a horizontal grounding electrode of a circular ring structure; if the step voltage parameter of the power transmission line tower does not meet the preset condition, additionally arranging a vertical grounding electrode on the grounding device; detecting a step voltage parameter of the power transmission line tower after the vertical grounding electrode is additionally arranged; if the step voltage parameter of the power transmission line tower does not meet the preset condition after the vertical grounding electrode is additionally arranged, laying a high-resistance layer on the ground around the power transmission line tower. The method provided by the invention caneffectively suppress the step voltage and reduce the risk of electric shock of personnel.

Description

technical field [0001] The present application relates to the technical field of power equipment, in particular to a method for suppressing step voltage of transmission line towers. Background technique [0002] With the rapid development of new-type urbanization in my country, many sparsely populated areas may become new industrial areas or residential areas, resulting in situations where high-voltage transmission lines approach or cross areas with densely populated areas. However, when a ground short-circuit fault occurs on a high-voltage transmission line, it will have a serious electromagnetic impact on the surrounding environment. For example, if a ground short-circuit fault occurs on a transmission line tower, it will cause a step electric shock to nearby personnel and endanger personal safety. Therefore, how to suppress the step voltage of transmission line towers is an urgent problem in the design and construction of transmission lines. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G13/00H01R4/66H02H9/04
CPCH01R4/66H02G13/40H02H9/041
Inventor 宗伟段绍辉张金广
Owner SHENZHEN POWER SUPPLY BUREAU
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