CN103311915B - A kind of dynamic interval discharger - Google Patents
A kind of dynamic interval discharger Download PDFInfo
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- CN103311915B CN103311915B CN201310264326.0A CN201310264326A CN103311915B CN 103311915 B CN103311915 B CN 103311915B CN 201310264326 A CN201310264326 A CN 201310264326A CN 103311915 B CN103311915 B CN 103311915B
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Abstract
A kind of dynamic interval discharger of the present invention, it comprises pair of discharge electrodes, it is characterized in that: described pair of discharge electrodes is fixed in two relative moving mechanism respectively.Pair of discharge electrodes of the present invention is fixed on that one of them sparking electrode of pair of discharge electrodes in Liang Ge travel mechanism or described is fixed in a travel mechanism, another sparking electrode is fixed in a non-moving mechanism respectively.Travel mechanism of the present invention adopts in rotary moving or rectilinear movement.The present invention is a kind of single gap, the moveable dynamic discharge device of sparking electrode, and when lightning surge discharges, electrode gap expands rapidly, and electrical discharge arc is elongated, and power arc can not continue when high arc distance maintain and extinguish.The present invention can solve the power frequency continued flow problem that power line voltage switching mode electric discharge device brings when lightning surge discharges, and stops the fire incident that voltage switch type electric discharge device causes because of afterflow problem.
Description
Technical field
The present invention relates to a kind of dynamic interval discharger.
Background technology
Voltage switch type thunderstorm electricity protective device is mainly used in the protection of first order lightning surge, and its key property is that through-current capacity is large, not fragile, is adapted at the lightning surge electric discharge of 10/350us or longer.This discharging gap is arranged on protected electric equipment power line, and sparking electrode is fixed on pottery, glass or plastic insulation thing, also claims Electro-Static Discharge device.When power circuit there being lightning surge occur, fast-changing lightning surge punctures air gap and discharges, and very low arc voltage (about 10-20V) is by power supply short circuit.If DC power supply, after so lightning surge disappears, power electric fails to be convened for lack of a quorum and continues through discharging gap, and this electric current is commonly called as afterflow.If power supply is industrial frequency AC, when lightning surge occurs in zero crossing, because the lightning surge time is all at Microsecond grade, so after surge disappearance, power supply can not short circuit.When lightning surge occurs in non-zero crossing, if supply voltage is higher than arc voltage, source current just flows through discharging gap, if arc current can not extinguish when zero crossing, so very easily causes fire incident (electrical discharge arc voltage waveform is shown in Fig. 9).In order to change this phenomenon, people start to adopt Multiple level type structure, and the mode utilizing every internode gap arc voltage to superpose, makes total arc voltage higher than supply voltage, avoid power supply to be shorted and the fire incident occurred.But the electric discharge device manufacturing cost of this structure is high, popularization is restricted.
Summary of the invention
Object of the present invention, that a kind of dynamic interval discharger will be provided, it is a kind of single gap, the moveable dynamic discharge device of sparking electrode, when lightning surge discharges, electrode gap expands rapidly, electrical discharge arc is elongated, and power arc (afterflow) can not continue when high arc distance maintain and extinguish.
The present invention is achieved in that described a kind of dynamic interval discharger, and it comprises pair of discharge electrodes, it is characterized in that: described pair of discharge electrodes is fixed in two relative moving mechanism respectively.
One of most preferred embodiment of the present invention, described pair of discharge electrodes is fixed in Liang Ge travel mechanism respectively.
Most preferred embodiment two of the present invention, one of them sparking electrode of described pair of discharge electrodes is fixed in a travel mechanism, another sparking electrode is fixed in a non-moving mechanism.
Travel mechanism of the present invention adopts in rotary moving or rectilinear movement.
The invention has the beneficial effects as follows, solve the power frequency continued flow problem that power line voltage switching mode electric discharge device brings when lightning surge discharges, stop the fire incident that voltage switch type electric discharge device causes because of afterflow problem, and solve high, the bulky problem of Multiple level type discharger cost.
Embodiment
Embodiment one: described pair of discharge electrodes is fixed in Liang Ge travel mechanism respectively, and described travel mechanism adopts mode in rotary moving.
A kind of dynamic interval discharger of the present invention, as shown in Figure 1, Fig. 1 is the state diagram of bipolar electrode of the present invention mechanism in rotary moving when normal work.
In Fig. 1, left sparking electrode contact arm 3 is provided with left sparking electrode 10, left sparking electrode lever arm 3 links together with left binding post 12 by soft copper connecting line 11, left sparking electrode lever arm 3 is arranged in left sparking electrode lever arm rotating shaft 1, left sparking electrode lever arm rotating shaft 1 is provided with left sparking electrode slew buffer mechanism 2; Right sparking electrode lever arm 4 is provided with right sparking electrode 9, right sparking electrode lever arm 4 links together with right binding post 7 by soft copper connecting line 8, right sparking electrode lever arm 4 is arranged in right sparking electrode lever arm rotating shaft 6, right sparking electrode lever arm rotating shaft 6 is provided with right sparking electrode slew buffer mechanism 5.Maintain 0.15-2 millimeter or larger fixed interval (FI) between left sparking electrode 10 and right sparking electrode 9, this gap is determined by protected electric wiring supply voltage and lightning surge starting resistor.Shell 13 is also indicated in Fig. 1.
A kind of dynamic interval discharger of the present invention, as shown in Figure 2, Fig. 2 is the state diagram of bipolar electrode of the present invention mechanism in rotary moving when the work of electric discharge.
In Fig. 2 when power circuit has lightning surge start the present invention discharge time, left sparking electrode 10 and the conducting of right sparking electrode 9 gap breakdown, power supply by arc voltage short circuit, source current moment also form power arc by left sparking electrode 10 and right sparking electrode 9.Along with the increase of electrical discharge arc, electric power promotes left sparking electrode 10 and right sparking electrode 9 separates rapidly.Be elongated because arc distance increases electric arc, power arc can not continue maintain and extinguish.Left and right two sparking electrodes, respectively under the effect of individual electrode rotary buffer gear certainly, are slowly got back to original position, are waited for lightning surge disruptive discharge next time.Parts in Fig. 2 are the same with the parts in Fig. 1.
Embodiment two: one of them sparking electrode of described pair of discharge electrodes is fixed in a travel mechanism, another sparking electrode is fixed in a non-moving mechanism.Described travel mechanism adopts mode in rotary moving.
A kind of dynamic interval discharger of the present invention, as shown in Figure 3,4, Fig. 3 is the state diagram of single electrode of the present invention mechanism in rotary moving when normal work, and Fig. 4 is the state diagram of single electrode of the present invention mechanism in rotary moving when the work of electric discharge.
Fig. 3,4 be embodiment one Fig. 1,2 basis on, remove right sparking electrode lever arm 4, right sparking electrode slew buffer mechanism 5, right sparking electrode lever arm rotating shaft 6 three parts, change soft copper connecting line 8 into copper electrode 8, change right sparking electrode 9 into fixed form.Left sparking electrode lever arm rotating shaft 1, left sparking electrode slew buffer mechanism 2, left sparking electrode lever arm 3, right binding post 7, soft copper connecting line 11, left binding post 12, shell 13 is also indicated in Fig. 3,4.
In Fig. 4 when power circuit has lightning surge start the present invention discharge time, left sparking electrode 10 and the conducting of right sparking electrode 9 gap breakdown, power supply by arc voltage short circuit, source current moment also form power arc by left sparking electrode 10 and right sparking electrode 9.Along with the increase of electrical discharge arc, electric power promotes left sparking electrode 10 and separates rapidly.Arc extinction rear left sparking electrode 10 slowly gets back to original position, waits for lightning surge disruptive discharge next time.Parts in Fig. 3 and Fig. 4 are the same.
Embodiment three: pair of discharge electrodes of the present invention is fixed in Liang Ge travel mechanism respectively, described travel mechanism adopts linear-movable manner.
A kind of dynamic interval discharger of the present invention, as shown in Figure 5, Fig. 5 is the state diagram of bipolar electrode linear moving mechanism of the present invention when normal work.
In Fig. 5, left sparking electrode lever arm 23 is arranged on left sparking electrode slideway 22, and left return spring 21 is arranged between left sparking electrode slideway 22 and left sparking electrode lever arm 23.Left sparking electrode lever arm 23 is provided with left sparking electrode 210, and left sparking electrode lever arm 23 links together with left binding post 212 by soft copper connecting line 211.Damping lubricating oil is scribbled between left sparking electrode slideway 22 and left sparking electrode lever arm 23;
Right sparking electrode lever arm 24 is arranged on right sparking electrode slideway 25, and right return spring 26 is arranged between right sparking electrode slideway 25 and right sparking electrode lever arm 24.Right sparking electrode lever arm 24 is provided with right sparking electrode 29, and right sparking electrode lever arm 24 links together with right binding post 27 by soft copper connecting line 28.Damping lubricating oil is scribbled between right sparking electrode slideway 25 and right sparking electrode lever arm 24; Maintain 0.15-2 millimeter or larger fixed interval (FI) between left sparking electrode 210 and right sparking electrode 29, this gap is determined by protected electric wiring supply voltage and lightning surge starting resistor.Shell 213 is also indicated in Fig. 5.
A kind of dynamic interval discharger of the present invention, as shown in Figure 6, Fig. 6 is the state diagram of bipolar electrode linear moving mechanism of the present invention when the work of electric discharge.
In Fig. 6 when power circuit has lightning surge start the present invention discharge time, left sparking electrode 210 and the conducting of right sparking electrode 29 gap breakdown, power supply is by arc short circuit, and source current moment also forms short circuiting arc electric current by left sparking electrode 210 and right sparking electrode 29.The electric power of electrical discharge arc promotes left sparking electrode 210 and right sparking electrode 29 separates rapidly.Arc extinction rear left return spring 21 and right return spring 26 overcome damping lubricant drag, promote left sparking electrode lever arm 23 respectively and right sparking electrode lever arm 24 gets back to original position, wait for lightning surge disruptive discharge next time.Parts in Fig. 6 are the same with the parts in Fig. 5.
Embodiment four: one of them sparking electrode of described pair of discharge electrodes is fixed in a travel mechanism, another sparking electrode is fixed in a non-moving mechanism.Described travel mechanism adopts linear-movable manner.
A kind of dynamic interval discharger of the present invention, as shown in Figure 7, Figure 8, Fig. 7 is the state diagram of single electrode linear moving mechanism of the present invention when normal work.Fig. 8 is the state diagram of single electrode linear moving mechanism of the present invention when the work of electric discharge.
Fig. 7, Fig. 8 are on the basis of embodiment three Fig. 5, Fig. 6, remove right sparking electrode slideway 25, right return spring 26, soft copper connecting line 28 3 parts, and the right sparking electrode arm 24 right sparking electrode lever arm 24 in Fig. 5, Fig. 6 changed in Fig. 7, Fig. 8, be fixed form.The parts of Fig. 7 are the same with the parts of Fig. 8.
In Fig. 8 when power circuit has lightning surge start the present invention discharge time, left sparking electrode 210 and the conducting of right sparking electrode 29 gap breakdown, power supply by arc short circuit, source current moment also form power arc by left sparking electrode 210 and right sparking electrode 29.The electric power of electrical discharge arc promotes left sparking electrode 210 and separates rapidly.Arc extinction rear left sparking electrode 210 just slowly gets back to original position, waits for lightning surge disruptive discharge next time.Left return spring 21 is also indicated, left sparking electrode slideway 22, left sparking electrode lever arm 23, right binding post 27, soft copper connecting line 211, left binding post 212, shell 213 in Fig. 7, Fig. 8.
Fig. 9 does not use the present invention at the test waveform figure of AC power line, in Fig. 9: 1. the lightning surge pulse applied, the mains voltage waveform be 2. shorted (power supply afterflow), 3. power supply is by arc short circuit continuous discharge (afterflow).
Figure 10 uses the present invention at the test waveform figure of AC power line, Tu10Zhong: 1. the lightning surge pulse applied, the mains voltage waveform be 2. shorted (power supply afterflow), the mains voltage waveform 3. recovered after arc extinction.
Accompanying drawing explanation
Fig. 1 is the state diagram of bipolar electrode of the present invention mechanism in rotary moving when normal work.
Fig. 2 is the state diagram of bipolar electrode of the present invention mechanism in rotary moving when the work of electric discharge.
Fig. 3 is the state diagram of single electrode of the present invention mechanism in rotary moving when normal work.
Fig. 4 is the state diagram of single electrode of the present invention mechanism in rotary moving when the work of electric discharge.
Fig. 5 is the state diagram of bipolar electrode linear moving mechanism of the present invention when normal work.
Fig. 6 is the state diagram of bipolar electrode linear moving mechanism of the present invention when the work of electric discharge.
Fig. 7 is the state diagram of single electrode linear moving mechanism of the present invention when normal work.
Fig. 8 is the state diagram of single electrode linear moving mechanism of the present invention when the work of electric discharge.
Fig. 9 does not use the present invention at the test waveform figure of AC power line.
Figure 10 uses the present invention at the test waveform figure of AC power line.
In Fig. 1, Fig. 2: 1. left sparking electrode lever arm rotating shaft, 2. left sparking electrode slew buffer mechanism, 3. left sparking electrode lever arm, 4. right sparking electrode lever arm, 5. right sparking electrode slew buffer mechanism, 6. right sparking electrode lever arm rotating shaft, 7. right binding post, 8. soft copper connecting line, 9. right sparking electrode, 10. left sparking electrode, 11. soft copper connecting lines, 12. left binding posts, 13 shells.
In Fig. 3, Fig. 4: 1. left sparking electrode lever arm rotating shaft, 2. left sparking electrode slew buffer mechanism, 3. left sparking electrode lever arm, 7. right binding post, 8. copper electrode, 9. right sparking electrode, 10. left sparking electrode, 11. soft copper connecting lines, 12. left binding posts, 13 shells.
In Fig. 5, Fig. 6: 21. left return springs, 22. left sparking electrode slideways, 23. left sparking electrode lever arms, 24. right sparking electrode lever arms, 25. right sparking electrode slideways, 26. right return springs, 27. right binding posts, 28. soft copper connecting lines, 29. right sparking electrodes, 210. left sparking electrodes, 211. soft copper connecting lines, 212. left binding posts, 213 shells.
In Fig. 7, Fig. 8: 21. left return springs, 22. left sparking electrode slideways, 23. left sparking electrode lever arms, 24. right sparking electrode arms, 27. right binding posts, 29. right sparking electrodes, 210. left sparking electrodes, 211. soft copper connecting lines, 212. left binding posts, 213 shells.
In Fig. 9: 1. the lightning surge pulse applied, the mains voltage waveform be 2. shorted (power supply afterflow), 3. power supply is by arc short circuit continuous discharge (afterflow).
In Figure 10: 1. the lightning surge pulse applied, the mains voltage waveform be 2. shorted (power supply afterflow), the mains voltage waveform 3. recovered after arc extinction.
Claims (4)
1. a dynamic interval discharger, it comprises pair of discharge electrodes, i.e. left sparking electrode and right sparking electrode, it is characterized in that: described pair of discharge electrodes is fixed in Liang Ge travel mechanism respectively; When power circuit there being lightning surge start dynamic interval discharger electric discharge, gap breakdown conducting between left sparking electrode and right sparking electrode, power supply is by arc voltage short circuit, and source current moment also forms power arc by left sparking electrode and right sparking electrode; Along with the increase of electrical discharge arc, the electric power of electrical discharge arc promotes left sparking electrode and right sparking electrode separates rapidly; Be elongated because arc distance increases electric arc, power arc can not continue maintain and extinguish; Left and right two sparking electrodes, respectively under the effect of respective electrode rotary buffer gear, are slowly got back to original position, are waited for lightning surge disruptive discharge next time.
2. a dynamic interval discharger, it comprises pair of discharge electrodes, i.e. left sparking electrode and right sparking electrode, it is characterized in that: described pair of discharge electrodes is fixed in Liang Ge travel mechanism respectively; When power circuit there being lightning surge start dynamic interval discharger electric discharge, the gap breakdown conducting between left sparking electrode and right sparking electrode, power supply is by arc short circuit, and source current forms short circuiting arc electric current by left sparking electrode and right sparking electrode instantaneously; The electric power of electrical discharge arc promotes left sparking electrode and right sparking electrode separates rapidly; Arc extinction rear left return spring and right return spring overcome damping lubricant drag, promote left sparking electrode lever arm respectively and right sparking electrode lever arm gets back to original position, wait for lightning surge disruptive discharge next time.
3. a dynamic interval discharger, it comprises pair of discharge electrodes, i.e. left sparking electrode and right sparking electrode, is characterized in that: one of them sparking electrode of described pair of discharge electrodes is fixed in a travel mechanism, another sparking electrode is fixed in a non-moving mechanism; When power circuit there being lightning surge start dynamic interval discharger electric discharge, gap breakdown conducting between left sparking electrode and right sparking electrode, power supply is by arc voltage short circuit, and source current moment also forms power arc by left sparking electrode and right sparking electrode; Along with the increase of electrical discharge arc, the electric power of electrical discharge arc promotes left sparking electrode and separates rapidly; Arc extinction rear left sparking electrode slowly gets back to original position, waits for lightning surge disruptive discharge next time.
4. a kind of dynamic interval discharger according to claim 3, is characterized in that: described travel mechanism adopts in rotary moving or rectilinear movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310264326.0A CN103311915B (en) | 2013-06-28 | 2013-06-28 | A kind of dynamic interval discharger |
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| CN201310264326.0A CN103311915B (en) | 2013-06-28 | 2013-06-28 | A kind of dynamic interval discharger |
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| CN103311915A CN103311915A (en) | 2013-09-18 |
| CN103311915B true CN103311915B (en) | 2015-12-23 |
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| CN201310264326.0A Active CN103311915B (en) | 2013-06-28 | 2013-06-28 | A kind of dynamic interval discharger |
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| CN108594152B (en) * | 2018-07-19 | 2021-01-12 | 北京丹华正齐电力技术有限公司 | Bidirectional controllable arc light generator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0793317A1 (en) * | 1996-03-01 | 1997-09-03 | Felten & Guilleaume Austria Ag | Overvoltage arrester device |
| CN1280861C (en) * | 2002-05-30 | 2006-10-18 | 施耐德电器工业公司 | Overvoltage protection device |
| CN203387173U (en) * | 2013-06-28 | 2014-01-08 | 厦门大恒科技有限公司 | Dynamic interval discharger |
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2013
- 2013-06-28 CN CN201310264326.0A patent/CN103311915B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0793317A1 (en) * | 1996-03-01 | 1997-09-03 | Felten & Guilleaume Austria Ag | Overvoltage arrester device |
| CN1280861C (en) * | 2002-05-30 | 2006-10-18 | 施耐德电器工业公司 | Overvoltage protection device |
| CN203387173U (en) * | 2013-06-28 | 2014-01-08 | 厦门大恒科技有限公司 | Dynamic interval discharger |
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| CN103311915A (en) | 2013-09-18 |
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