Ground wire ice melting device of ultra-high voltage alternating current power transmission line

A technology for ice-melting power transmission lines and ground wires, which is applied in the installation of cables, electrical components, and overhead installation, etc. The effect of good heat dissipation, improved response, and strong operability

Inactive Publication Date: 2013-09-18
STATE GRID CORP OF CHINA +2
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to design a ground wire ice-melting device for UHV AC transmission lines in view of the current situation that the existing technology cannot meet the high voltage and high current required for the ground wire melting of UHV AC 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
  • Ground wire ice melting device of ultra-high voltage alternating current power transmission line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] See figure 1 A specific embodiment of the ground wire ice melting device for UHV AC power transmission lines of the present invention is shown. The ice melting rectifier transformer 1 of this embodiment adopts the ZSSS-9300 transformer produced by Baoding Tianwei Group TBEA Co., Ltd., Baoding City, Hebei Province, China, and its rated capacity is 9.3MVA; the high-voltage rectifier 2 adopts Nanjing Guodian NARI Technology Co., Ltd. The RBZLG-8.1 type rectifier produced by Co., Ltd. has a nominal voltage of 25.1kV; the line inductive suppressor 3 adopts the YZQ-100 line inductive suppressor produced by Hunan Xiangdian Research Technology Co., Ltd., which has the ability to suppress line induced voltage No less than 100km; The output mode switch switch 4 uses the GW1-35 / 1000-40kA isolating switch developed by Hunan Xiangdian Trial Research Technology Co., Ltd., with a rated working voltage of 35kV and a rated current capacity of 1000A; digital display system 5 The HCSX-35 / ...

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

This invention provides a ground wire ice melting device of an ultra-high voltage alternating current power transmission line. An ice melting rectifier transformer (1), a high voltage rectifier (2), a line induction suppressor (3) and an output mode switching knife switch (4) of the ground wire ice melting device are sequentially in series connection; an input terminal of a digital display system (5) is connected with an output terminal of a protection control system (6); an input terminal of the protection control system (6) is connected with an output terminal of the output mode switching knife switch (4); and a signal output terminal of the digital display system (5) is connected with a signal input terminal of the protection control system (6). The ground wire ice melting device of the ultra-high voltage alternating current power transmission line has the advantages of being capable of achieving ground wire ice melting of the 100 km ultra-high voltage power transmission line, enabling gears to be adjustable, being capable of adapting to direct current ice melting of various types of ground wires, being small in size, strong in operability, good in heat dissipation effect, low in operation cost and simple in maintenance and improving the capability to respond to freezing disasters of the ultra-high voltage power transmission line.

Description

Technical field [0001] The invention belongs to the technical field of electrical engineering, and specifically relates to a ground wire ice melting device for an ultra-high voltage AC power transmission line. It is suitable for long-distance, high-impedance ice melting of overhead ground wires of UHV AC transmission lines to avoid breakage of UHV AC transmission lines. Background technique [0002] Southern China has been threatened by freezing disasters for a long time. Severe freezing disasters often lead to tower down and disconnection accidents, and even large-scale blackouts, affecting the safe and stable operation of the power grid, and causing significant losses to national production and life. The UHV AC transmission lines have high voltage levels and large transmission volumes, which are vital to the operation of the power grid. Due to the long distance of the line and the complicated terrain across the region, icing is difficult to avoid. For example, the length of t...

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
IPC IPC(8): H02G7/16
Inventor 陆佳政周秀冬李波方针张红先赵纯
Owner STATE GRID CORP OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap