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Low-voltage system early discharge recoil arc extinguishing device and method

A low-voltage system, advanced discharge technology, applied in the direction of corona discharge devices, circuits, electrical components, etc., can solve the problem of not being able to suppress the re-ignition frequency transient recovery voltage rising speed, and the re-ignition high-frequency overvoltage effect is not very ideal, etc. , to achieve the effect of improving the volt-second characteristic and shortening the arc extinguishing time

Inactive Publication Date: 2020-12-22
南宁超伏电气科技有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

Since MOA zinc oxide arresters and surge protectors can only suppress the overvoltage amplitude, but cannot suppress the rising speed of the re-ignition frequency and the transient recovery voltage between fractures, the effect of suppressing the re-ignition high-frequency overvoltage generated by the switching operation not ideal

Method used

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  • Low-voltage system early discharge recoil arc extinguishing device and method
  • Low-voltage system early discharge recoil arc extinguishing device and method
  • Low-voltage system early discharge recoil arc extinguishing device and method

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, preferred embodiments are given to further describe the present invention in detail. However, it should be noted that many of the details listed in the specification are only for readers to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0040] Such as figure 1As shown, a recoil arc extinguishing device for early discharge of a low-voltage system in the present invention includes a recoil arc extinguishing unit, and the recoil arc extinguishing unit includes a recoil tube 1, an insulated wire 3, a high voltage package 4 and an electric field induction line 6, One end of the insulated wire 3 is connected to the output end of the high-voltage pack 4, the electric field induction line 6 is connected to the high-voltage pack 4, and the electric fiel...

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Abstract

The invention discloses a low-voltage system early discharge recoil arc extinguishing device and method, and belongs to the technical field of low-voltage system lightning protection, the device comprises a recoil arc extinguishing unit, the recoil arc extinguishing unit comprises a recoil pipe, an insulating wire, a high-voltage pack and an electric field induction line, one end of the insulatingwire is connected with the output end of the high-voltage pack, and the other end is connected with the high-voltage pack. The electric field induction line is connected with the high-voltage pack and arranged on the side edge of the low-voltage system switch, and the other end of the insulated wire is arranged in the recoil pipe. The operating voltage of the arc extinguishing device can be changed. The high-voltage pack generates a large number of free electrons in advance, the insulating strength is automatically reduced, arc flashover is advanced, the recoil arc extinguishing process is advanced, and the arc extinguishing time is greatly shortened. Volt-second characteristics are improved. High-voltage pulses break through air gaps in advance, a large number of free electrons are provided, and the gap volt-second characteristic is improved.

Description

technical field [0001] The invention relates to the technical field of lightning protection for low-voltage systems, in particular to a low-voltage system early discharge recoil arc extinguishing device and method. Background technique [0002] With the further development of the modern electric power industry and the further improvement of user power supply service requirements, higher requirements are put forward for the safety, reliability, intelligent automation and other technical levels of the low-voltage side (220V, 380V) power distribution switchgear operation. In the low-voltage power distribution system, overvoltage faults of power distribution equipment are relatively common, mainly manifested in two aspects: atmospheric overvoltage (lightning) and operating overvoltage, which will cause burning and impact damage of power distribution equipment, directly affecting the power distribution system. The safety and reliability of power supply for electrical equipment an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01T1/02H01T19/00
CPCH01T1/02H01T19/00
Inventor 王巨丰张清河王嬿蕾骆耀敬黄萍王国锋徐宇恒庞智毅李心如张奇星段小嬿彭斐杨倩颖金星
Owner 南宁超伏电气科技有限公司
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