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Transmission line DC ice melting short circuit connection device and method

A technology for DC ice melting and power transmission lines, which is applied in cable installation, overhead installation, electrical components, etc. It can solve the problems of difficult operation and maintenance, high operation risk, and large space required, so as to achieve convenient operation and maintenance and low operation risk , The effect of investment saving

Inactive Publication Date: 2019-03-19
金华八达集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention mainly solves the problems of low work efficiency, high operation risk, large space required, large investment, and difficult operation and maintenance of the ice-melting short-circuit device or scheme, and provides a short-circuit device with high work efficiency, low operation risk, and DC ice-melting short-circuit device that saves space, saves investment, and is convenient for operation and maintenance

Method used

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  • Transmission line DC ice melting short circuit connection device and method
  • Transmission line DC ice melting short circuit connection device and method

Examples

Experimental program
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Embodiment

[0023] This embodiment implements a DC ice-melting short-circuit device, figure 1 As shown in , the bracket (1) includes bracket one (18), bracket two (19), and bracket three (20), the three brackets (1) are arranged in the word "one", and the insulating porcelain bottle (4) includes Insulated porcelain bottle one (21), insulating porcelain bottle two (22), insulating porcelain bottle three (23), three insulating porcelain bottles (4) are arranged in the word "product", and the insulating porcelain bottle two (22) is located in the insulating porcelain bottle one (21) On the side of the vertical line connected to the insulating porcelain bottle three (23), a vertical telescopic movable contact mechanism (3) is provided on the bracket (1) to control the rise and static contact (7) through the electric control mechanism (2) connect.

[0024] Such as figure 2 As shown, the moving contact (10) includes a shorting device (11), a conductive rod (16) and a contact (12), the shorti...

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Abstract

The invention discloses a transmission line DC ice melting short circuit connection device and method, which aim at being applied to a DC circuit formed by a DC ice melting device and an ice melting line. The method comprises steps: the DC ice melting device is connected to one side of the ice melting line; and A, B and C three-phase short circuit is carried out at the other side, particularly, the DC ice melting short circuit connection device is used to perform automatic A, B and C three-phase short circuit. The device and the method disclosed in the invention are applicable to transmissionline DC ice melting short circuit.

Description

technical field [0001] The invention relates to a DC ice-melting technology for power grid transmission lines, in particular to a DC ice-melting short-circuit device and method. Background technique [0002] China is one of the countries in the world where transmission line ice is more serious. With the rapid development of the power grid, there are more and more high-voltage and ultra-high-voltage transmission lines across ice-covered areas, and the possibility of extreme weather disasters causing damage to the power grid is also increasing. The icing of transmission lines will cause line overload, cause line tripping, disconnection, conductor galloping, insulator flashover, and even downed towers and other accidents, resulting in large-scale power outages. Since the accident occurred in the severe winter season, the mountains were blocked by heavy snow and the roads were frozen, so it was difficult to repair quickly, and it was easy to cause long-term power outages, resul...

Claims

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Application Information

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IPC IPC(8): H02G7/16
CPCH02G7/16
Inventor 贺燕徐敏陈跃国桑长青蒋力纲管志明张晓途
Owner 金华八达集团有限公司