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Electrified locomotive high-voltage switching device

A high-voltage switch and locomotive technology, applied in the field of high-voltage electrical equipment, can solve problems such as low safety and large volume, and achieve the effects of simplified control, reduced volume, and reduced partial discharge

Pending Publication Date: 2018-06-15
BEIHAI GALAXY SWITCH DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional switchgear is mainly gas-insulated, with large volume and low safety

Method used

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  • Electrified locomotive high-voltage switching device
  • Electrified locomotive high-voltage switching device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] attached figure 1 For ease of illustration, housing parts have been removed. as attached figure 1 and figure 2 As shown, a high-voltage switchgear for an electrified locomotive includes a main isolating switch 1, a backup isolating switch 5, a circuit breaker 3, an incoming line grounding switch 2, an outgoing line grounding switch 4, a permanent magnet operating mechanism 9, and an earthing switch operating mechanism 10 , Pneumatic operating mechanism 11, lightning arrester 7, voltage transformer (PT) 8, characterized in that: the main isolating switch 1, the backup isolating switch 5, the circuit breaker 3, the incoming line grounding switch 2 and the outgoing line grounding switch 4 are placed in the housing The main isolating switch 1, the backup isolating switch 5, and the circuit breaker 3 are horizontally arranged side by side, the incoming line grounding switch 2 is located on the upper part of the standby isolating switch 5, the outgoing line grounding switc...

Embodiment 2

[0031] The permanent magnet operating mechanism adopts a monostable structure, and the opening operation of the isolating switch is realized through the energy storage spring. The pneumatic operating mechanism adopts compressed air to drive the closing and Cui Neng spring to open the gate. The solid insulating material is epoxy resin. The pressure equalizing parts are made of 0.1 mm thick stainless steel mesh. The air box is made of 3mm thick 304# stainless steel plate.

[0032] All the other are with embodiment 1.

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Abstract

The invention relates to the field of high-voltage electrical devices, and in particular relates to an electrified locomotive high-voltage switch. The electrified locomotive high-voltage switch comprises a main isolating switch, a standby isolating switch, a circuit breaker, a grounding switch, an actuator, an arrester and a voltage transformer, which are horizontally arranged in a gas tank side by side; a vacuum arc-extinguishing chamber and a solid insulating material are adopted; a permanent magnetic mechanism is adopted in an isolating switch actuator; and a pneumatic actuator is adopted in the circuit breaker. According to the electrified locomotive high-voltage switching device disclosed by the invention, the volume of the switch is reduced; the local discharge capacity of the product is reduced; the service life of the product is prolonged; the actuator is simplified; and the reliability is improved.

Description

technical field [0001] The invention relates to the field of high-voltage electrical equipment, in particular to a high-voltage switch for an electrified locomotive. 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. China's railway construction will enter a golden period, and high-speed rail and bullet trains have become the main means of transportation for travel. As the power distribution equipment of electrified locomotives, with the advent of the high-speed rail era, it is facing an increasingly strong market demand. Conventional switchgear is mainly gas-insulated, which is bulky and low in safety. Contents of the invention [0003] The object of the present invention is to provide a high-voltage switchgear for an electrified locomotive, which is small in size and high in safety. [0004] In order to achieve the above object...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B13/00H01H33/60H01H33/53H01H33/42H01H33/662
CPCH02B13/005H01H33/42H01H33/53H01H33/60H01H33/66261
Inventor 李章云曹玉生侯峰
Owner BEIHAI GALAXY SWITCH DEVICES
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