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

Double triangle phase sequence common-tower common-window dual loop transmission line

A transmission line, double triangle technology, applied in the field of high-voltage, ultra-high-voltage overhead line power transmission, and ultra-high voltage, can solve the problems of wide transmission corridors, the inability to use compact transmission lines to save transmission corridors, and the limit of single-circuit transmission capacity. Achieve the effects of narrow transmission corridor, small potential supply current and recovery voltage, and low induced voltage

Inactive Publication Date: 2009-05-06
NORTHWEST CHINA GRID +1
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the former, the delivery capacity of a single circuit also has a certain limit.
The latter naturally results in wider transmission corridors due to the wider pole towers, which cannot play the role of compact transmission lines saving transmission corridors

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
  • Double triangle phase sequence common-tower common-window dual loop transmission line
  • Double triangle phase sequence common-tower common-window dual loop transmission line
  • Double triangle phase sequence common-tower common-window dual loop transmission line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The double-delta phase-sequence double-circuit power transmission line with the same tower and the same window proposed by the present invention has a structure as follows figure 1 As shown, it includes a support frame 1, a wire support rod 2, a phase A wire 3 of the first power transmission line, a B phase wire 4 of the first power transmission line, a C phase wire 5 of the first power transmission line, and a second power transmission line The A-phase conductor 6 of the line, the B-phase conductor 7 of the second power transmission line, and the C-phase conductor 8 of the second power transmission line. The A-phase conductor 3 of the first circuit transmission line, the B-phase conductor 4 of the first circuit transmission line and the C-phase conductor 5 of the first circuit transmission line are arranged in a triangle on the upper side of the support frame 1, and the A-phase conductor 5 of the second circuit transmission line The phase wire 6 , the B-phase wire 7 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 relates to a double-delta double-circuit transmission line with phase sequence in the same tower window, which belongs to the technical field of high, ultra-high and extra-high voltage overhead line electric power transmission. The A-phase wire, the B-phase wire and the C-phase wire of a first circuit transmission line are arranged at the upper side of a supporting frame in a delta shape, and the A-phase wire, the B-phase wire and the C-phase wire of a second circuit transmission line are arranged at the lower side of the supporting frame in a delta shape. All the phase wires are relatively fixed with the supporting frame through a wire supporting rod. The transverse two-phase wires on the second layer are positioned in the same phase position, and the first layer wires and the third layer wires at both sides of the supporting frame are respectively positioned in the same phase position. The transmission line has higher natural power and narrower power transmission corridor; compared with the double-circuit transmission line with same phase sequence in the same tower window, the transmission line has lower lightning protecting wire induced voltage and lower double-circuit simultaneous tripping rate during the lightning striking process; and compared with the double-circuit transmission line with negative phase sequence in the same tower window, the transmission line has smaller potential supplied current and recovery voltage, and lower radio interference, audible noise and corona loss.

Description

technical field [0001] The invention relates to a double-delta phase-sequence double-circuit power transmission line with the same tower and the same window, and belongs to the technical field of electric energy transmission for high-voltage, ultra-high voltage, and ultra-high voltage overhead lines. Background technique [0002] In the field of power transmission technology, compared with compact transmission lines, conventional single-circuit and double-circuit transmission lines on the same tower have problems such as wide transmission corridors, poor electromagnetic environment, and small transmission capacity. Specifically: [0003] Conductors with different phases generate electric field components with different phases at the surface, and the electric field components with different phases inhibit and partially cancel each other. The magnitude of each electric field component is related to the distance between the conductor that generates the component and the point o...

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): H02G7/00H02G7/20
Inventor 梁曦东朱普轩朱跃曾嵘曹生顺李岩黄宗君
Owner NORTHWEST CHINA GRID
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