CN1437290A - Discharge gap with irradiation electrode - Google Patents
Discharge gap with irradiation electrode Download PDFInfo
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- CN1437290A CN1437290A CN 02104805 CN02104805A CN1437290A CN 1437290 A CN1437290 A CN 1437290A CN 02104805 CN02104805 CN 02104805 CN 02104805 A CN02104805 A CN 02104805A CN 1437290 A CN1437290 A CN 1437290A
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- discharge
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Abstract
The discharge gap is one with auxiliary illuminating point discharge electrodes connected parallelly to the main discharge electrodes. Before the main electrode electric field strength reaches the puncture one, the auxiliary electrodes produce local strong electric field to ionize peripheral air and generate electrons between the main electrodes, and this can reduce the discharge delay and raise discharge stabilization.
Description
The present invention relates to a kind of discharging gap that has irradiation electrode.
Discharging gap is a gas discharge device commonly used in the high voltage technique, generally is used for controlling the break-make of high voltage circuit.Usually be made up of two electrodes, one connects high-pressure side, and another connects low-pressure end, is state of insulation between two electrodes, and when the voltage between two electrodes reached puncture voltage, breakdown one-tenth conducting state insulated.After afterflow disappears, owing to become state of insulation again between two electrodes of recovery certainly of insulation, thus the loop is in off-state again.
The dispersion problem of modal problem discharge voltage during discharging gap uses.Discharge dispersity is mainly caused by electric field uniformity coefficient and discharge time delay.According to the inferior gas discharge theory of soup, in non-uniform electric field evenly or slightly, the discharge formation of gas gap and development mainly contain two factors decisions, and the one, electric field strength will reach disruptive field intensity between electrode, and another is effective electron will occur in the gap.In these two factors, electric field strength is mainly by the inter-electrode voltage decision, and the common honor of the appearance of effective electron is followed statistical law.Especially when little gap, the bigger statistics time delay that has owing to first effective electron makes the puncture of discharging gap that bigger dispersiveness be arranged, and is subjected to the influence of voltage waveform very big.For addressing this problem, the method that adopts usually in the laboratory is with ultra-violet lamp clearance space to be shone, and helps the appearance of effective electron like this, has reduced the statistics time delay that first effective electron occurs, thereby has reduced the dispersiveness of discharge.But this mode is not suitable in the production usually, makes the design of product and production become very complicated and difficult because add the ultraviolet irradiation meeting.The objective of the invention is to provide a kind of practicality, band irradiation electrode, the dispersed little discharging gap of discharge voltage.
The object of the present invention is achieved like this: an auxiliary front in parallel respectively is most advanced and sophisticated irradiation electrode on two main electrodes, because the radius of curvature of irradiation electrode tip portion is very little, its local field strength is very big, when field intensity does not reach disruptive field intensity as yet between main electrode, the local highfield that utilizes irradiation electrode is with its ambient air ionization, make inherence, main electrode space just occur electronics when not reaching disruptive field intensity, as long as the electric field strength between main electrode reaches disruptive field intensity, disruptive discharge immediately, reduce the statistics time delay of discharge greatly, thereby reduced the dispersiveness of discharge.
Have most advanced and sophisticated irradiation electrode because the present invention is in parallel on the electrode of common discharging gap, reduced the formation time delay of main electrode discharge, greatly reduce discharge dispersity, improved the gap performance.And irradiation electrode only need provide the irradiation tip that can produce local highfield of a parallel connection, and mechanism is simple, is highly susceptible to realizing.
Specify performance of the present invention below in conjunction with accompanying drawing one and accompanying drawing two.
Embodiment one:
Shown in figure one, 1 is electrode suppor among the figure, the 2nd, a pair of main discharge electrode, in parallelly on main discharge electrode 2 have a most advanced and sophisticated irradiation electrode 3, utilize highfield that the tip of irradiation electrode 3 produces with air ionization, make under lower field intensity, just to occur electronics in the main gap space, in case reach disruptive field intensity, disruptive discharge immediately.
Embodiment two:
Shown in figure two, 1 is electrode suppor among the figure, the 2nd, and a pair of main discharge electrode has an aperture in the centre of main electrode 2, and the most advanced and sophisticated irradiation electrode of a needle-like is wherein arranged.
Claims (1)
1: a kind of discharging gap.To it is characterized in that on main discharge electrode in parallel auxiliary has most advanced and sophisticated irradiation electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02104805 CN1437290A (en) | 2002-02-07 | 2002-02-07 | Discharge gap with irradiation electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02104805 CN1437290A (en) | 2002-02-07 | 2002-02-07 | Discharge gap with irradiation electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1437290A true CN1437290A (en) | 2003-08-20 |
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ID=27628007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02104805 Pending CN1437290A (en) | 2002-02-07 | 2002-02-07 | Discharge gap with irradiation electrode |
Country Status (1)
| Country | Link |
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| CN (1) | CN1437290A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102523675A (en) * | 2011-12-13 | 2012-06-27 | 西安交通大学 | Plasma ejection device for igniting long air spark gap and circuit thereof |
| CN109804514A (en) * | 2016-08-17 | 2019-05-24 | 通用电气公司 | The spark gap without krypton -85 with cantilever members |
-
2002
- 2002-02-07 CN CN 02104805 patent/CN1437290A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102523675A (en) * | 2011-12-13 | 2012-06-27 | 西安交通大学 | Plasma ejection device for igniting long air spark gap and circuit thereof |
| CN102523675B (en) * | 2011-12-13 | 2014-08-06 | 西安交通大学 | Plasma ejection device for igniting long air spark gap and circuit thereof |
| CN109804514A (en) * | 2016-08-17 | 2019-05-24 | 通用电气公司 | The spark gap without krypton -85 with cantilever members |
| CN109804514B (en) * | 2016-08-17 | 2021-04-09 | 通用电气公司 | Krypton-85 free spark gap with cantilevered member |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |