Direct-current tandem ice melting device and system

A technology of melting ice and DC bus, applied in overhead installation, cable installation, electrical components, etc., can solve the problem of high material cost, achieve the effect of convenient equipment operation, improve equipment utilization rate, and reduce equipment input cost

Active Publication Date: 2020-09-15
CHINA SOUTHERN POWER GRID DIGITAL GRID RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Based on this, it is necessary to provide a DC series d

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  • Direct-current tandem ice melting device and system
  • Direct-current tandem ice melting device and system
  • Direct-current tandem ice melting device and system

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[0032] In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0033] In the description of the present invention, the terms "first" and "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delim...

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Abstract

The invention relates to a direct-current tandem ice melting device and system. The device comprises a first power transmission line unit, a second power transmission line unit, a buried short circuitunit and a switch unit. The buried short-circuit unit is used for being connected with spacing equipment of an intermediate substation in parallel. The first power transmission line unit is connectedbetween a direct-current bus of a starting-end transformer substation and the buried short-circuit unit, and the buried short-circuit unit is connected with the switch unit through the second power transmission line unit. And the buried short circuit unit is used for connecting corresponding lines between the first power transmission line unit and the second power transmission line unit accordingto the on-off state of the switch unit and short-circuiting corresponding interval equipment in the intermediate substation. Based on the above device, direct-current ice melting equipment in the starting-end transformer substation provides ice melting direct current for a loop between a first power transmission line unit between the starting-end transformer substation and the middle transformersubstation and a second power transmission line unit between the middle transformer substation and the tail-end transformer substation through a direct-current bus, ice melting equipment does not needto be allocated and configured for adjacent transformer substations, and the equipment cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of ice melting for power distribution lines, in particular to a DC serial connection ice melting device and system. Background technique [0002] With the development of the national economy, social power consumption has risen sharply, and users' requirements for power reliability have also continued to increase. The safe and stable operation of the main network lines has far-reaching significance for improving the reliability of power supply and promoting economic growth. [0003] In recent years, affected by extreme weather such as ice, snow and severe cold, the safe and stable operation of the main network lines has been greatly threatened. The hidden dangers of disconnection, collapse of towers, and even large-scale power outages have existed for a long time, causing large-scale and long-term outages of transmission lines, causing national The economy has taken immeasurable damage. [0004] In the trad...

Claims

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Application Information

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IPC IPC(8): H02G7/16
CPCH02G7/16
Inventor 辛文成姚森敬于力陈浩敏张凡席禹姜臻李晋伟
Owner CHINA SOUTHERN POWER GRID DIGITAL GRID RES INST CO LTD
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