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Instantaneous forced ventilating device of spark gap for series compensation

A technology of spark gap and series compensation, which is applied in the direction of spark gap, spark gap parts, electrical components, etc., can solve the problems of air density reduction and insulation level can not be quickly restored, so as to improve air density, device design is simple and easy, The effect of high reliability

Active Publication Date: 2016-04-06
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] When the spark gap used for series compensation is discharged through current, the peak value of the current can reach tens to hundreds of thousand amperes, and the duration can reach tens to hundreds of milliseconds. High temperature and high pressure gas is generated instantly, the air density decreases rapidly, and a large number of charged particles are also produced at the same time. The reason is that the insulation level of the spark gap cannot be recovered quickly after the discharge conduction

Method used

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  • Instantaneous forced ventilating device of spark gap for series compensation
  • Instantaneous forced ventilating device of spark gap for series compensation
  • Instantaneous forced ventilating device of spark gap for series compensation

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Embodiment Construction

[0043] 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.

[0044] An embodiment of an instantaneous forced ventilation device for a spark gap used for series compensation provided by the present invention is as follows: figure 1 Its working principle is shown as figure 2 As shown, specifically:

[0045] The device includes an energy-taking module, a driving module and an air outlet module. in,

[0046] The energy-taking module is used to convert the AC current of the spark gap 10 into a DC current and send it to the driving module.

[0047] The drive module includes a DC motor 211 a...

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Abstract

The invention provides an instantaneous forced ventilating device of a spark gap for series compensation. The instantaneous forced ventilating device comprises an energy extraction module, a driving module and a wind outlet module; the energy extraction module is used for converting alternating current of the spark gap into direct current, and transmitting the direct current to the driving module; the driving module comprises a direct-current motor and a gear case; one end of the direct-current motor is connected with the energy extraction module, and the other end of the direct-current motor is connected with the gear case so as to drive a gear in the gear case to rotate; the wind outlet module comprises a wind wheel and a wind guiding channel; the wind wheel is connected with the gear case; and the wind guiding channel guides wind generated by the wind wheel to a freewheeling gap. Compared with the prior art, the instantaneous forced ventilating device 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 an instantaneous forced ventilation device for spark gaps 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 capacitor bank, a...

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Application Information

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IPC IPC(8): H01T1/00
CPCH01T1/00
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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