Floor type isolated switch cabinet for overhead line system

A technology of isolating switch and catenary, applied in substation/switch layout details, electrical components, substation/distribution device casing, etc., can solve the problem of affecting the accuracy of switch opening and closing contacts, etc., to achieve stable video quality and prevent banding The effect of load operation and high structural strength

Pending Publication Date: 2017-12-12
CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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Problems solved by technology

In the salt lake section, the phenomenon of "wind blowing snow" is more serious. Snow mixed with sediment and flake garbage will affect the precision of switch opening and closing contacts.

Method used

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  • Floor type isolated switch cabinet for overhead line system
  • Floor type isolated switch cabinet for overhead line system
  • Floor type isolated switch cabinet for overhead line system

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Embodiment Construction

[0033] The present invention will be described in detail below in combination with specific embodiments.

[0034] Catenary isolating switch of electrified railway undertakes important functions such as switching of power supply mode of traction network, electric energy distribution and electrical isolation of catenary, and is widely used in feeder network, separation phase and station. At present, the catenary isolating switches of electrified railways are all installed outdoors on the top of the column or on the side of the column. The rotating transmission rod of the output shaft of the isolating switch operating mechanism is about 8 meters long. When the isolating switch is driven to close and open, the angular displacement of the output shaft of the mechanism cannot be completely transmitted to the isolating switch body due to the natural sag of the transmission rod, which will cause the switch to close. , The opening is not in place. Especially in windy conditions.

[0...

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PUM

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Abstract

The invention relates to a floor type isolated switch cabinet for an overhead line system. The floor type isolated switch cabinet comprises a stainless steel sealed box, wherein the interior of the stainless steel sealed box is divided into an upper part and a lower part through a partition plate; the upper part is a high-voltage chamber, and the lower part is a control chamber; an air insulation inner cone slide-in cable socket, an electric isolating switch and a supporting insulator are installed in the high-voltage chamber; an electric/manual operating mechanism, an overhead line system isolating switch monitoring device and a high-voltage charged sensor are arranged in the control chamber. The floor type isolated switch cabinet disclosed by the invention is mainly applied to circuits among various sectioned power supply parts in an electrified railway on-off overhead line system in a strong wind area, the power supply flexibility is increased, potential safety hazards are eliminated, the switch body is filled in the closed box, the box is installed at the column bottom, the strong wind speed-increasing area is avoided, sand erosion is avoided, and the reliability of equipment operations is comprehensively improved.

Description

technical field [0001] The invention relates to the technical field of electrified railway catenary, in particular to a floor type isolating switch cabinet for catenary. Background technique [0002] The top of the common isolation switch column is installed about 10m above the ground, and is connected with the operating mechanism installed at the lower part of the column through the transmission rod. The electric operating mechanism drives the transmission rod to rotate or move up and down to realize the opening and closing action of the isolation switch. The length of the transmission rod is 8m~9m, and the natural deflection of the rod in the vertical opening mode is greater than 1mm / m. The connection of the transmission rod is relatively weak. Many problems caused by wind disasters are found during operation, mainly manifested in mechanical fatigue and wear caused by the wind swing of the electrical connection line , Fatigue problems of equipment clamps, electrical insula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B1/30H02B1/32H02B1/28H02B1/20
CPCH02B1/20H02B1/28H02B1/306H02B1/32
Inventor 田志军张学武王玉环张珹郭凤平盛望群田升平黄文勋王强金光聂晶鑫杨艺赵玮唐晓岚刘惠德钟成宫衍圣刘刚
Owner CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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