Discharge gap device for line lightning protection

A discharge gap and circuit technology, applied in circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, emergency protection circuit devices, etc., can solve bird short circuit, unreasonable design structure, and endanger normal distribution lines Operation and other issues

Pending Publication Date: 2020-10-16
国网安徽省电力有限公司歙县供电公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a discharge gap device for line lightning protection, which can effectively solve the problem that the discharge gap structure of the existing non-power frequency continuous current discharge gap device has a single discharge gap, and when the energy generated by the overvoltage is large When the...

Method used

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  • Discharge gap device for line lightning protection

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Embodiment Construction

[0016] Examples such as figure 1 The shown discharge gap device for line lightning protection includes a discharge gap upper electrode plate 8, a fixed support insulator 2 arranged on the discharge gap upper electrode plate 8, and a discharge gap upper electrode is arranged on the top of the fixed support insulator 2 The upper electrode plate of the discharge gap is provided with a power frequency current limiter 1, the upper electrode plate of the discharge gap is provided with an upper electrode 9 of the discharge gap, and the upper electrode plate 8 of the discharge gap is provided with a The first discharge gap is formed between the discharge gap lower electrode 13, the discharge gap upper electrode 9 and the discharge gap lower electrode 13; a group of detachable discharge gap auxiliary electrodes 12 are also arranged on the discharge gap upper electrode plate 8, and the discharge gap auxiliary electrodes 12 A second discharge gap is formed between the upper electrode 9 a...

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Abstract

The invention relates to a discharge gap device for line lightning protection. The device comprises a discharge gap lower electrode plate, a fixed support insulator and a discharge gap upper electrodeplate. A power frequency current limiter is arranged on the discharge gap upper electrode plate. A discharge gap upper electrode is arranged on the discharge gap upper electrode plate, a discharge gap lower electrode is arranged on the discharge gap lower electrode plate, and a first discharge gap is formed between the discharge gap upper electrode and the discharge gap lower electrode; the discharge gap lower electrode plate is also provided with a group of detachable discharge gap auxiliary electrodes, and a second discharge gap is formed between the discharge gap auxiliary electrodes and the discharge gap upper electrode. The discharge gap device for line lightning protection can effectively solve the problems that a discharge gap structure of an existing power-frequency-free follow-current discharge gap device is provided with a single discharge gap, when energy generated by overvoltage is large, the gap is broken down and discharged, the energy of the overvoltage cannot be completely released, and redundant energy can still harm normal operation of a distribution line.

Description

technical field [0001] The invention relates to a discharge gap device for line lightning protection. Background technique [0002] When the distribution line (such as 35KV high-voltage distribution network and 110KV high-voltage distribution network) is overvoltage generated by lightning, it will cause flashover or breakdown of insulators and disconnection of wires. Lightning waves may even invade the substation along the distribution line, affecting the safe operation of the substation and even causing personal safety accidents. [0003] At present, in order to reduce the impact of overvoltage on distribution lines, discharge gap devices are generally installed on distribution lines. However, the current non-power-frequency freewheeling discharge gap device has the following disadvantages: the discharge gap structure of the non-power frequency freewheeling discharge gap device has a single discharge gap. When the energy generated by the overvoltage is large, the energy o...

Claims

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Application Information

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IPC IPC(8): H01T4/10H01T4/02H02G13/00H02H9/06H01B17/46
CPCH01B17/46H01T4/02H01T4/10H02G13/20H02H9/06
Inventor 庄海峰陈凡吴刚程昌浩凌志英许俊赵佳伟李超赵杨赵欣宇罗志峰王文林王春华宋浩杰
Owner 国网安徽省电力有限公司歙县供电公司
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