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A breaking method for isolation linkage vacuum load switch

A technology for isolating switches and vacuum loads, which is applied in the field of breaking and closing of isolation linkage vacuum load switches, which can solve problems such as low safety level, arcing, breakdown, etc., achieve high safety and reliability, meet high voltage level requirements, and high opening The effect of breaking the voltage

Active Publication Date: 2020-07-14
珠海沃顿电气有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, some manufacturers only set up a break of the vacuum interrupter between the inlet terminal and the outlet terminal of the load switch, and the safety level is relatively low; the vacuum interrupter can only be reliably applied to lower voltage levels The system, such as the 72kv power system; the vacuum interrupter is easy to arc when it is turned on; when the incoming line terminal is connected to electricity and the vacuum arc extinguisher is not turned on, it is easy to generate a large arc at the moment of power supply and under the high voltage of lightning arc, breakdown

Method used

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  • A breaking method for isolation linkage vacuum load switch
  • A breaking method for isolation linkage vacuum load switch
  • A breaking method for isolation linkage vacuum load switch

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Embodiment Construction

[0015] The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0016] Such as Figure 1 to Figure 3 As shown, an isolated linkage vacuum load ring network cabinet includes a cabinet body, a switch mechanism 2 and an operating mechanism 1; the cabinet body is provided with a separated vacuum switch chamber, an operating mechanism chamber and a cable chamber. The switch mechanism 2 includes a first connecting terminal 21, an isolating switch 22, a vacuum interrupter 23 and a second connecting terminal 24 which are electrically connected in sequence. The switching mechanism 2 also includes a first rotor 25 and a The second rotor 26 used to control the on-off of the vacuum interrupter 23, the operating mechanism 1 is connected to the first rotor 25 and the second rotor 26; the operating mechanism 1 is used to control the linkage between the isolation switch 22 and the vacuum interrupter 23. The f...

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Abstract

The invention discloses a breaking and closing method of an isolation linkage vacuum load switch. The inlet and outlet ends of the load switch are provided with an isolation switch and a vacuum arc extinguisher. The first rotor is used for controlling the isolation switch to be turned on and off, the second rotor is used for controlling the vacuum arc extinguisher to be turned on and off, and theoperating mechanism is used for controlling the isolation switch and the vacuum arc extinguisher to be linked. Vacuum interrupter closes after disconnector closes for T time; The operating mechanism also controls the opening action of the disconnector and the opening action of the vacuum interrupter. The vacuum load switch has a high interrupting voltage, which meets the requirements of high voltage level. The vacuum load switch has a high interrupting voltage. The disconnector and vacuum arc extinguisher are interconnected, and the load switch is not easy to start arc. The breaks of the disconnector and the vacuum interrupter can be closed in several milliseconds, and the vacuum interrupter can be closed safely after the arc generated by the transient state of the disconnector is quicklyextinguished.

Description

technical field [0001] The invention relates to a high-voltage switch, in particular to a method for breaking and closing an isolation linkage vacuum load switch. Background technique [0002] With the continuous improvement of voltage level requirements, the breaking voltage requirements of high-voltage load switches are continuously provided. [0003] In the prior art, some manufacturers only set up a break of the vacuum interrupter between the inlet terminal and the outlet terminal of the load switch, and the safety level is relatively low; the vacuum interrupter can only be reliably applied to lower voltage levels The system, such as the 72kv power system; the vacuum interrupter is easy to arc when it is turned on; when the incoming line terminal is connected to electricity and the vacuum arc extinguisher is not turned on, it is easy to generate a large arc at the moment of power supply and under the high voltage of lightning Arcing, breakdown. [0004] Therefore, it i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H9/26
CPCH01H9/26
Inventor 李季
Owner 珠海沃顿电气有限公司
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