Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method for evaluating the lightning current ablation resistance ability of transmission line conductor and ground wire

A transmission line and ground wire technology, applied in the direction of measuring electricity, measuring electrical variables, instruments, etc., can solve the problems of loss of mechanical strength of the ground wire, threats to power grid safety and personal safety, and easy expansion of broken strands and loose wires of the ground wire. , to achieve the effect of ensuring safe and stable operation

Active Publication Date: 2020-12-01
GUIZHOU POWER GRID CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] It is not easy to find the broken strands of the ground wire due to lightning strikes. The broken strands of the ground wire are easy to expand and cause a short circuit to the ground. The broken strands of the ground wire lose the mechanical strength. The operation has a great impact. At present, there have been many lightning strikes and broken wires and broken stocks in various places, posing a great threat to the safety of the power grid and personal safety.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for evaluating the lightning current ablation resistance ability of transmission line conductor and ground wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: as figure 1 As shown, a method for evaluating the lightning current ablation capacity of the transmission line conductor and ground wire, the method includes the following steps:

[0015] Step 1: Use the lightning current ablation platform of the transmission line and the ground wire, and select the cross-section to be 50mm 2 , 70 mm 2 、95mm 2 、120mm 2 、150mm 2 、180mm 2 、210 mm 2 、240mm 2 、300 mm 2 and 400mm 2 Ten kinds of ground wires of transmission line, respectively apply the same amplitude lightning current to these ten kinds of ground wires, and obtain the relationship between the cross-sectional size of the ground wires and the degree of ablation of the ground wires;

[0016] Step 2: Select ground wires with the same cross-sectional area and different numbers of strands, apply the same magnitude of lightning current to them, and obtain the relationship between the diameter of a single strand of the ground wire and the degree of ablation of ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for evaluating the lightning current ablation ability of a grounding wire in a transmission line. The method comprises: by testing the relationship between the cross-section size of different wires, the diameter of a single strand of a wire, the magnitude of a lightning current, the type of a lightning current waveform, and the residual breaking force, respectively, and the lightning current ablation ability of a grounding wire in a transmission line , obtaining quantitative evaluation data of 5 aspects, comprehensively evaluating the lightning current ablationability of the grounding wire in the transmission line , and providing technical support for the lightning-proof selection of the grounding wire in the transmission line, therefore ensuring the safeand stable operation of the power grid.

Description

technical field [0001] The invention belongs to the technical field of lightning current ablation resistance of a transmission line ground wire, and in particular relates to a method for evaluating the lightning current ablation resistance capability of a transmission line ground wire. Background technique [0002] It is not easy to find the broken strands of the ground wire due to lightning strikes. The broken strands of the ground wire are easy to expand and cause a short circuit to the ground. The broken strands of the ground wire lose the mechanical strength. The operation has a great impact. At present, there have been many lightning strikes and broken wires and broken stocks in various places, posing a great threat to the safety of the power grid and personal safety. Therefore, there is an urgent need to carry out research on the evaluation of the lightning current ablation resistance capability of the transmission line ground wire, so as to provide a good lightning cu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 毛先胤曾华荣马晓红杜昊吕乾勇张伟彭赤蔡力
Owner GUIZHOU POWER GRID CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com