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Method for improving insulation recovery performance of spark gap for series compensation

A technology of spark gap and series compensation, applied in the direction of spark gap, spark plug, electrical components, etc., can solve the problems of air density reduction, insulation level cannot be quickly restored, etc., to improve air density, insulation tolerance level faster recovery, device Easy to design effects

Active Publication Date: 2016-04-06
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] When the spark gap for series compensation is discharged through current, the peak value of the current can reach tens to hundreds of thousand amperes, and high temperature and high pressure gas is generated instantly, the air density decreases rapidly, and a large number of charged particles are also produced. Its insulation level cannot be restored quickly

Method used

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  • Method for improving insulation recovery performance of spark gap for series compensation
  • Method for improving insulation recovery performance of spark gap for series compensation
  • Method for improving insulation recovery performance of spark gap for series compensation

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Embodiment Construction

[0046] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0047] An embodiment of a method for improving the insulation recovery performance of a spark gap for series compensation provided by the present invention is as follows: figure 1 As shown, specifically:

[0048] 1. Install an instantaneous ventilation device on the series compensation device.

[0049] In this embodiment, the air outlet of the instantaneous ventilation device is 1 meter away from the spark gap, and is facing the spark gap 10 .

[0050] 2. The instantaneous ventilation device collects the AC current of the spark...

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Abstract

The invention provides a method for improving insulation recovery performance of a spark gap for series compensation. The method comprises the following steps: step 1, mounting an instantaneous ventilating device on a series compensation device; and step 2, acquiring alternating current of the spark gap of the series compensation device by using the instantaneous ventilating device, supplying air to the spark gap if the alternating current is acquired, and entering a standby state if the alternating current is not acquired. Compared with the prior art, the method for improving the insulation recovery performance of the spark gap for series compensation does not change a body structure of an existing spark gap for a series compensation device, is convenient to mount and modify and good in feasibility; and safe and stable running of the existing spark gap for the series compensation device is not affected, and the device is simple and convenient in design and high in reliability.

Description

technical field [0001] The invention relates to the technical field of power transmission and distribution engineering, in particular to a method for improving the insulation recovery performance of a spark gap used for series compensation. Background technique [0002] Series compensation (Series Compensation, SC), referred to as series compensation, is an AC transmission technology that connects capacitor banks in series on AC transmission lines to compensate for line inductance, thereby increasing line transmission capacity and improving the stability of power transmission and transformation systems. Because of its safety, reliability, convenience and high efficiency, it has been widely used in power transmission systems of various voltage levels. [0003] At present, the overvoltage protection of domestic EHV and UHV series compensation devices usually adopts the working mode of metal oxide voltage limiter (MOV) and spark gap, in which MOV is the main protection of the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01T21/00
CPCH01T21/00
Inventor 李国富李永亮党冬李会兵陈没刘之方董勤晓
Owner CHINA ELECTRIC POWER RES INST
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