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A lightning protection method for a single lightning protection line for erecting transmission lines in the same corridor

A single lightning protection line and transmission line technology, applied in the installation of cables, electrical components, installation of lighting conductors, etc., can solve undiscovered problems, save materials and investment, and improve the effect of lightning protection

Active Publication Date: 2016-08-24
CEEC JIANGSU ELECTRIC POWER DESIGN INST CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of erecting transmission lines in the same corridor, considering the shielding effect between adjacent lines, the method of designing a single lightning protection line has not been found in the power field.

Method used

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  • A lightning protection method for a single lightning protection line for erecting transmission lines in the same corridor
  • A lightning protection method for a single lightning protection line for erecting transmission lines in the same corridor
  • A lightning protection method for a single lightning protection line for erecting transmission lines in the same corridor

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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] figure 1 It is a schematic diagram of the lightning protection effect of the present invention; figure 2 It is a schematic diagram of lightning strike distance and formed exposure arc to the first single lightning conductor, conductor, and earth on the first iron tower in the present invention;

[0025] Such as figure 1 , figure 2 Shown: a single lightning protection line lightning protection method for erecting transmission lines in the same corridor, including the following steps:

[0026] First, according to the voltage level of the transmission line, the height of the conductor, the cross section, the number of splits and the insulation level of the insulator string, the minimum shielding current of the lightning shielding conductor is calculated; then according to the minimum shielding current, using the EGM electrical geomet...

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Abstract

The present invention disclosed a single lightning protection method for the transmission lines set up in the same corridor, including: first calculate the minimum winding of lightning winding lines according to the voltage level of the transmission line, the height of the wire, the section, the division, and the insulator of the insulator.Fighting current; further use the EGM electrical geometric model method to calculate the lightning protection line, wire, and earth pitch of lightning on the first iron tower;Use the EGM electrical geometric model method to calculate the first coordinates of the single -lighting arc on the first iron tower and the exposed arc exposed arc; according to the first intersection coordinates, determine the position of the second iron tower positioned in the corridor in a symmetrical form.EssenceThe invention can improve the lightning protection effect, reduce the lightning protection effect, reduce the two inside of the two iron towers in the same corridor, and greatly save materials and investment, and provide a reference basis for the design of the transmission line.

Description

technical field [0001] The invention relates to a lightning protection method for lines erected by electric power transmission iron towers, in particular to a single lightning protection line lightning protection method for erecting transmission lines in the same corridor, and belongs to the field of electric power transmission. Background technique [0002] The transmission line of the power system has a long distance and a large span, and the probability of being struck by lightning is high, and lightning strikes occur from time to time. The lightning strikes suffered by the transmission line are divided into shielding strikes and counterattacks. The counterattack mainly shows that the lightning strikes the top of the iron tower or the lightning protection line causes the potential of the top of the tower to rise. Induced lightning current. Therefore, for transmission lines of 220kV and above, lightning protection lines should be erected across the board. [0003] For co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G13/00
Inventor 马军王作民吴锁平赵新宇张瑞永陶礼学万之全姚成赵纪倩
Owner CEEC JIANGSU ELECTRIC POWER DESIGN INST CO LTD
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