Selection method and device of arcing angle and insulator string in overhead transmission line

A technology of overhead transmission lines and insulator strings, which is applied in the electric power field, can solve the problems of high cost, long cycle, low arc angle and low efficiency of insulator strings, and achieve the effect of low cost, short cycle and improved efficiency

Active Publication Date: 2021-09-03
电力规划总院有限公司
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Problems solved by technology

[0003] In view of this, the present invention provides a method and device for selecting the arcing angle and insulator strings in overhead transmission lines to solve the problems of low efficiency, long cycle and high cost in selecting matching arcing angles and insulator strings

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  • Selection method and device of arcing angle and insulator string in overhead transmission line
  • Selection method and device of arcing angle and insulator string in overhead transmission line
  • Selection method and device of arcing angle and insulator string in overhead transmission line

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Embodiment Construction

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.

[0048] The method for selecting the arcing angle and the insulator string in the overhead transmission line according to the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0049] Such as figure 1As shown, the method for selecting the arcing angle and the insulator string in the overhead transmission line according to the...

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Abstract

The present invention provides a method and device for selecting an arcing angle and an insulator string in an overhead power transmission line. arc angle, and determine the withstand voltage value of the preset arc angle; according to the given insulator parameters and the number of insulators, obtain the withstand voltage value of the insulator string; according to the preset arc angle withstand voltage value and the withstand voltage value of the insulator string, calculate the effectiveness index parameter of the preset arcing angle to the insulator string; determine the arcing angle and the insulator string according to the effectiveness index parameter. On the premise of the randomness of the discharge, the present invention facilitates the selection and coordination of the arcing angle and the insulator string, and can provide a reference for the selection and matching of the arcing angle and the insulator string without the need for a complete test, and improves the selection of the arcing angle. The efficiency and reliability of the insulator string are high, and the method has a short cycle and low cost.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a method and a device for selecting arc strike angles and insulator strings in overhead power transmission lines. Background technique [0002] Adding the arcing angle to the insulator string is a dredging lightning protection method, which is widely used in foreign countries. It is mostly used on the grounding electrode line in my country. The key parameter of its design is the matching coefficient between the arcing angle gap and the length of the insulator string, which is taken as The value affects the protective effect of the arc angle on the insulator string. At present, the matching relationship between the arc angle gap and the insulator string is mostly determined based on experimental research at home and abroad. The reliability of the test research results has direct guiding significance for determining the arc angle gap. However, the experimental research has the disadvan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/12G01R19/02
CPCG01R19/02G01R31/1245
Inventor 李永双王莹莹唐剑夏波张华王志强王晶岳功昌
Owner 电力规划总院有限公司
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