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Distribution network integrated lightning protection system

A comprehensive lightning protection and distribution network technology, applied in the installation of electrical components, cables, circuits, etc.

Active Publication Date: 2015-04-15
成都星河科技产业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, most of the ground lightning can cause the distribution network to trip due to lightning and cause the insulation wire to break

Method used

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Embodiment Construction

[0055] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0056] A comprehensive lightning protection system for distribution networks, including an overvoltage isolator 2 connected in series on each phase line of a three-phase line at the outbound end of a transformer in a substation 1, and an overvoltage isolator 2 is output from the overvoltage isolator 2 to a tower 4 The three-phase transmission line 3, through the support of the pole tower 4 and the cooperation with the insulating cross arm 5 on it, becomes a three-phase transmission line of the overhead distribution network. The quick earthing device 8 is protected by lightning protection.

[0057] The electrical insulation of this transmission line is much higher than that of ordinary lines, because the fixed transmission line 3 is erected on the multifunctional clamp 6 of the insulating cross arm 5 of the pole tower 4 .

[0058] For the extended pole tower insulati...

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Abstract

The invention discloses a distribution network integrated lightning protection system comprising a transformer substation, and output lines led out of three phases of outlet ports of a transformer substation transformer. Each phase of line is connected in series with an overvoltage isolator. Overhead wires are formed through lead-out of the output ends of the voltage isolators to a pole tower. Pole tower insulating cross arms support the overhead wires, and power transmission wires are fixed via multifunctional wire clamps arranged on the insulating cross arms. A wave-resistant lightning rod is installed at the top end of the pole tower. A simple and rapid grounding device is embedded in the ground of the bottom part of the pole tower so that integrated lightning protection performed on the distribution network lines and the transformer substation is realized with pole tower protection acting as the center and prevention of distribution network lightning tripping and disconnection acting as the key points. Distribution network line dedicated lightning equipment like the wave-resistant lightning rod, the insulating cross arms, the multifunctional wire clamps and the simple grounding device are organically integrated by the system so that the multilayer and three-dimensional integrated lightning protection system is constructed and realized, lightning trip-out rate and disconnection rate can be substantially reduced, and maximum matching of distribution network lightning economical efficiency and effectiveness is realized.

Description

technical field [0001] The invention relates to a distribution network safety lightning protection protection system, specifically a distribution network comprehensive lightning protection system. Background technique [0002] Lightning is a discharge phenomenon of the earth's atmosphere. Usually, when the electric field strength between the negatively charged thundercloud and the earth exceeds the breakdown strength of the atmosphere, a pulse discharge between the thundercloud and the earth occurs, which is what people call lightning strike. During the thundercloud discharge process, the discharge current increases sharply. At the moment when the lightning reaches the ground, the lightning current reaches tens of thousands of amps, or even hundreds of thousands of amps. The potential difference between the two ends of the lightning channel can reach hundreds of thousands of volts. Wherever it goes, it will cause strong electromagnetic, thermal and mechanical destructive e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G13/00H01T19/04H01R4/66
Inventor 郭玉章张强
Owner 成都星河科技产业有限公司
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