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

Method for determining parameters of transmission line overhead ground wire direct-current ice-melting device

A technology for overhead ground wires and transmission lines, which is applied in the direction of overhead installation, cable installation, electrical components, etc. It can solve the problems of not determining the main parameters of the overhead ground wire ice-melting device of transmission lines, etc., achieve good operation prospects, save investment, The effect of reducing capacity

Inactive Publication Date: 2012-07-25
YUN NAN ELECTRIC TEST & RES INST GRP CO LTD ELECTRIC INST +2
View PDF3 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no systematic method for determining the main parameters of the deicing device for overhead ground wires of transmission lines

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
  • Method for determining parameters of transmission line overhead ground wire direct-current ice-melting device
  • Method for determining parameters of transmission line overhead ground wire direct-current ice-melting device
  • Method for determining parameters of transmission line overhead ground wire direct-current ice-melting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] The present invention will be further described below in conjunction with accompanying drawings and examples.

[0045] Technical scheme of the present invention is:

[0046] Firstly, the parameters of each transmission line and overhead ground wire within the scope of application of the DC deicing device for the overhead ground wire of the transmission line are collected, and then the "1+1" DC deicing method is selected, and under comprehensive consideration of various factors, the use of The minimum ice-melting current and the maximum allowable current of each overhead ground wire are calculated by the calculation formulas of the minimum ice-melting current and the maximum allowable current of each overhead ground wire. Combined with the connection mode, the ice-melting current of the overhead ground line DC ice-melting device is determined. Finally, the rated capacity, rated output voltage, operating trigger angle and other parameters of the overhead ground wire drop...

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 relates to a method for determining parameters of a transmission line overhead ground wire direct-current ice-melting device. The method comprises the following steps of: (1) collecting main parameters of each overhead ground wire and main parameters of the transmission line in the running scope of the transmission line overhead ground wire direct-current ice-melting device; (2) selecting one overhead ground wire and one transmission conductor in serial connection for melting ice in the manner of one-entering one-exiting ice-melting; (3) determining a minimal ice-melting current for each overhead ground wire; (4) determining a direct current voltage and capacity of each overhead ground wire; (5) determining a rated output voltage and rated capacity of the direct-current ice-melting device, and combining the ice-melting current to determine a running trigger angle of the ice-melting device; and (6) determining the current and capacity overload capability of the transmission line overhead ground wire direct-current ice-melting device as 1.2 times and rated 1 hour. According to the method provided by the invention, the quick ice-melting of each overhead ground wire is met, the capacity of the direct-current ice-melting device is reduced as much as possible, the investment is saved and the safety of running is improved.

Description

technical field [0001] The present invention is a method for determining the parameters of a DC deicing device for an overhead ground wire of a power transmission line, which determines the DC deicing method for an overhead ground wire by comprehensively considering the ambient temperature, ice thickness, light intensity, carrying capacity of the overhead ground wire, and different wiring modes. The main parameter of the device. Background technique [0002] The overhead ground wire of transmission lines is an important part of high-voltage transmission lines. It can reduce lightning accidents, shield electromagnetic waves, and improve the safety of transmission line operation. For a long time, low-temperature, rainy and snowy weather has been one of the serious threats to the icing of overhead ground wires. Severe icing will cause strand breakage, ice-covered dancing, and ice-off jumps of overhead ground wires, thus making overhead ground wires lose their protection and cau...

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 Applications(China)
IPC IPC(8): H02G7/16
Inventor 孙鹏邹立峰周海郑易谷姜虹云程颖杨堂华杨建华杨金东
Owner YUN NAN ELECTRIC TEST & RES INST GRP CO LTD ELECTRIC INST
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