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Contact net electric phase splitting device

A technology of electric phase separation and catenary, which is applied to power line components and overhead lines, etc., can solve the problems of limited flow capacity of arresters, increased mechanical burden of catenary, and increased weight of electric phase separation devices, etc., and achieves a novel and simple structure , Increase creepage distance, reduce weight effect

Pending Publication Date: 2021-01-01
CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the added arrester will greatly increase the weight of the electrical phase splitting device, which in turn will cause an increase in the mechanical burden of the catenary and a decrease in stability
In addition, due to the limited flow capacity of the arrester, once a long-lasting electromagnetic oscillation occurs in the electrical separation phase, it may cause the arrester to explode.

Method used

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  • Contact net electric phase splitting device
  • Contact net electric phase splitting device
  • Contact net electric phase splitting device

Examples

Experimental program
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Effect test

example 1

[0032] Example 1: In the device, the length of the neutral line is 300m, the length of the neutral section is 190m, the non-metal wire 1 with a length of 100m is used in the non-electric zone, and the length of the metal wire 2 used at both ends is 100m.

example 2

[0033] Example 2: In the device, the length of the neutral line is 300m, the length of the neutral section is 190m, and the length of the non-electric zone is 100m, in which the non-metallic wire 1 with a length of 18m is used in the middle, and the length of the metal wire 2 adopted at both ends is respectively 141m.

example 3

[0034] Example 3: In the device, the length of the neutral line is 300m, the length of the non-electric zone is 100m, 100m of non-metallic wire 1 is used at both ends of the neutral wire, and a metal wire 2 of 100m in length is used in the middle.

[0035] In the present invention, the main material of the non-metallic wire 1 is a carbon fiber wire; the material of the insulating device is an electric porcelain insulating material, or a silicon rubber material; the material of the positive contact wire 4 is a copper alloy wire, and the material of the bearing cable is a copper alloy stranded wire; The catenary is suspended in a simple chain with full compensation. The outer surface of the insulating device used for phase separation is provided with sheds or rhombuses to increase the creepage distance.

[0036] In the present invention, the electrical (average) distance between the neutral line and the catenary at both ends is not less than 500 mm; when the altitude is greater ...

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PUM

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Abstract

The invention relates to a contact network electric phase splitting device which comprises a neutral line and a contact line, the neutral line comprises a non-metal line, and the non-metal line is a carbon fiber wire. According to the novel electric phase splitting device provided by the invention, the neutral line adopts a structure of 'metal line + nonmetal line + metal line' or 'nonmetal line +metal line + nonmetal line', so that overvoltage and arc phenomena when a motor train unit or an electric locomotive enters and exits from electric phase splitting can be greatly limited, and the weight of the electric phase splitting device is reduced; when the motor train unit or the electric locomotive goes in and out of electric phase splitting, overvoltage and arc phenomena can be limited, the structure is light, the insulating strength is high, and the device is especially suitable for large ramp lines, long tunnel lines, high altitude, heavy pollution, moisture and corrosion environments.

Description

technical field [0001] The invention relates to the technical field of electrified railway engineering, in particular to an electrical phase separation device for a catenary network. Background technique [0002] The neutral wire of the traditional electrical phase splitting device is an all-metal wire. Due to the certain space capacitance effect of the neutral wire to the ground and to the catenary wires at both ends, electromagnetic transient energy will be stored. When the EMU or electric locomotive passes through, there will be a strong electromagnetic transient oscillation, which is manifested as high overvoltage and arc phenomenon may occur in the incoming and outgoing phases of the EMU or electric locomotive, causing the EMU or electric locomotive , The insulation device of the catenary breaks down, endangering the safety of the catenary operation and the safety of the EMU or electric locomotive. [0003] In order to solve the above-mentioned problems in the prior ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60M1/13B60M1/02
CPCB60M1/13B60M1/02
Inventor 刘洋王强孙镜堤刘若飞李晋宫衍圣刘明光黄文勋魏光盛望群李琦张学武吴亚飞范瑞栋
Owner CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP