Wire-protecting and de-icing method of unit type high tension power line

A technology of high-voltage transmission lines and ice-melting methods, which is applied to the installation of electrical components, cables, and output power conversion devices. It can solve problems such as high power supply capacity requirements, difficult voltage withstand insulation, and complicated operations, and achieve easy dispersion. Installation and long-term online operation, low insulation cost, and the effect of meeting the requirements of ice protection

Inactive Publication Date: 2008-09-24
朱发国
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the deficiencies of the existing technical solutions for line-guaranteed ice melting with load, high power capacity requirements, difficult voltage insulation, complex operation and low efficiency, the present invention proposes a unitary high-voltage power transmission with convenient power supply, low cost and flexible control Line maintenance and melting method

Method used

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  • Wire-protecting and de-icing method of unit type high tension power line
  • Wire-protecting and de-icing method of unit type high tension power line
  • Wire-protecting and de-icing method of unit type high tension power line

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Embodiment Construction

[0032] In the present invention, the unitary high-voltage transmission line protection and ice melting method combines Figure 1 to Figure 4 shown, including the following steps:

[0033] A. Define the same-phase split wires 11 and 12 in a certain section as the line-guaranteed ice-melting unit, and use conductive spacers 90 at both ends of the unit;

[0034] B. Install a wire-guaranteed ice-melting device 100 in the unit, and the wire-guaranteed ice-melting current output by the wire-guaranteed ice-melting device 100 forms a loop between the two conductive spacers 90 and the split conductors 11, 12 and generates The heat realizes line-guaranteed melting of ice.

[0035] The line-guaranteed ice-melting device 100 includes a line-guaranteed ice-melting power supply and a line-guaranteed ice-melting current control system.

[0036] The line-guaranteed ice-melting power supply output of the line-guaranteed ice-melting device 100 adopts a DC mode or an AC mode:

[0037] When th...

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Abstract

The invention relates to a unit type high voltage transmission line wire-protection ice-melting method which includes the following steps: A. defining same-phase cracking lead wires (11, 12) of a certain section as a wire-protection ice-melting unit and adopting conductive spacers (90) at the positions of two ends of the unit; B. arranging a wire-protection ice-melting device (100) in the unit, wherein a loop circuit between the two spacers (90) and the cracking lead wires (11,12) are formed by the wire-protection ice-melting current output by the wire-protection ice-melting device (100), thus generating heat so as to realize wire-protection and ice-melting. The wire-protection and ice-melting device includes a wire-protection and ice-melting current control system and a wire-protection and ice-melting power. A corresponding wire-protection and ice-melting current used for heating the cracking lead wires (11, 12) is output by the wire-protection and ice-melting power according to the wire-protection and ice-melting current parameters, so as to realize wire-protection and ice-melting. Compared with the prior art, the method of the invention has the advantages of shortcut power obtaining, low cost, flexible control and good wire-protection and ice-melting effect, etc.

Description

Technical field: [0001] The invention relates to a method for preventing icing of transmission lines (commonly known as line protection) or melting ice of already-covered transmission lines (collectively referred to as line protection and melting ice) by using Joule heating generated by the current of transmission wires, especially for split wires of transmission lines For high-voltage transmission lines, under the condition that the conductors are normally loaded, the method of protecting the local transmission conductors from melting ice is carried out. Background technique: [0002] The current heating method for ice melting protection is to pass a large current in the transmission wire, and melt the ice on the wire through the thermal effect of the wire resistance. According to whether the transmission line needs to be shut down during ice melting, the ice melting technology of current heating method can be divided into two types: on-load ice melting and off-load ice mel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G7/16H02M7/155H02M5/45
Inventor 朱发国
Owner 朱发国
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