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Electrified railway switching equipment

A technology for electrified railway and switchgear, applied in the field of electrified railway switchgear, can solve problems such as high price and lack of interlocking function

Active Publication Date: 2012-01-18
北京美基机电设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Indoor power distribution equipment in railway traction substations adopts a large number of 27.5kV interval-removable AC metal-enclosed switchgear. The current interval-removable AC metal-enclosed switchgear is relatively expensive and lacks reliable interlocking functions.

Method used

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  • Electrified railway switching equipment
  • Electrified railway switching equipment

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Experimental program
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Embodiment Construction

[0016] Such as figure 1 Shown is a schematic structural view of an embodiment of the electrified railway switchgear of the present invention. In this embodiment, the electrified railway vacuum circuit breaker includes a connected vacuum interrupter and a spring operating mechanism to form an integrated single-stage single interrupter structure. The frame of the single-stage single interrupter structure is a manual Car-type frame, the vacuum interrupter adopts a longitudinal installation structure, the spring operating mechanism includes a closing spring and an opening spring in a half-shaft tripping mode, the closing spring is a tension spring, and the opening spring The spring is a stage clip. Store the energy of the opening spring when the switch is closed, and adopt the semi-axis release method to ensure the stable, reliable and long service life of its mechanism. At the same time, for the convenience of maintenance, the mechanism box can be opened directly from the front...

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PUM

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Abstract

The invention relates to electrified railway switching equipment. The electrified railway switching equipment comprises a guide rail framework and a circuit breaker handcart, wherein the guide rail framework comprises a guide rail base and a facade mounting bracket; the circuit breaker handcart comprises a propulsion cart and a carrying cart; and an electrified railway vacuum circuit breaker, a current transformer and a primary moving contact are arranged on the propulsion cart. With the adoption of a landing handcart in the electrified railway switching equipment, the handcart runs on a special rail and has a reliable interlocking function; in the moving process of the handcart, the circuit breaker cannot be switched on, and the handcart cannot be pushed and pulled when the circuit breaker is switched on; and when the handcart moves from a testing position to a working position, the meshing of moving and fixed contacts is realized through a propulsion mechanism on an operation panel.

Description

technical field [0001] The invention relates to the field of medium and low voltage electrical equipment manufacturing, in particular to an electrified railway switchgear. Background technique [0002] With the continuous development of China's economy, railway transportation is playing an increasingly active role in the important means of transportation in China. In the future, China's railway construction will enter a golden period. With the arrival of the peak of railway construction, the market demand is increasingly strong. [0003] Indoor power distribution equipment in railway traction substations adopts a large number of 27.5kV separated AC metal-enclosed switchgears. The current separated AC metal-enclosed switchgears are expensive and lack reliable interlocking functions. Contents of the invention [0004] The object of the present invention is to propose an electrified railway switchgear which provides a reliable interlocking function at a lower cost. [0005]...

Claims

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Application Information

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IPC IPC(8): H01H33/66H01H33/664H01H33/666
Inventor 黄萍
Owner 北京美基机电设备有限公司
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