CN103311915A - Dynamic interval discharger - Google Patents
Dynamic interval discharger Download PDFInfo
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- CN103311915A CN103311915A CN2013102643260A CN201310264326A CN103311915A CN 103311915 A CN103311915 A CN 103311915A CN 2013102643260 A CN2013102643260 A CN 2013102643260A CN 201310264326 A CN201310264326 A CN 201310264326A CN 103311915 A CN103311915 A CN 103311915A
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Abstract
The invention relates to a dynamic interval discharger which comprises a pair of discharging electrodes and is characterized in that the pair of discharging electrodes is fixed on two opposite moving mechanisms. The two discharging electrodes which are paired are fixed on the two moving mechanisms respectively, or one discharging electrode is fixed on one moving mechanism, and the other discharging electrode is fixed on a non-moving mechanism. The moving mechanisms move in a rotating mode or a linear mode. The dynamic interval discharger is a single-interval dynamic discharging device with movable discharging electrodes. When lightning surge discharges, the electrode interval is enlarged quickly, the discharging arc is lengthened, and the power supply arc cannot be maintained continuously under high-arc-distance condition and is extinguished out. The dynamic interval discharger solves the problem of power frequency follow current of a power line voltage switch type discharging device caused by lightning surge discharging, and avoids fire accidents caused by the problem of follow current of the voltage switch type discharging device.
Description
Technical field
The present invention relates to a kind of dynamic clearance discharger.
Background technology
Voltage switch type thunderstorm electricity protective device is mainly used in first order thunder and lightning surge protection, and its key property is that through-current capacity is large, and is not fragile, is adapted at 10/350us or longer thunder and lightning surge discharge.This discharging gap is installed on the protected electric equipment power line, and sparking electrode is fixed on pottery, glass or the plastic insulation thing, also claims the Electro-Static Discharge device.When having the thunder and lightning surge to occur on the power circuit, fast-changing thunder and lightning surge punctures the air gap and discharges, and very low arc voltage (approximately 10-20V) is with power supply short circuit.If DC power supply, after the thunder and lightning surge disappeared so, source current can continue by discharging gap, and this electric current is commonly called as afterflow.If power supply is industrial frequency AC, when the thunder and lightning surge occurs in zero crossing, because the thunder and lightning surge time is all at Microsecond grade, so after surge disappeared, power supply can short circuit.When the thunder and lightning surge occurred in non-zero crossing, if supply voltage is higher than arc voltage, source current just flow through discharging gap, if arc current can not extinguish when zero crossing, so very easily caused fire incident (the electrical discharge arc voltage waveform is seen Fig. 9).In order to change this phenomenon, people begin to adopt many clearance types structure, utilize the mode of every internode gap arc voltage stack, make total arc voltage be higher than supply voltage, the fire incident of avoiding power supply to be occured by short circuit.But the electric discharge device manufacturing cost of this structure is high, popularization is restricted.
Summary of the invention
Purpose of the present invention, that a kind of dynamic clearance discharger will be provided, it is movably dynamic discharge device of a kind of single gap, sparking electrode, when the thunder and lightning surge discharge, electrode gap enlarges rapidly, electrical discharge arc is elongated, and power supply electric arc (afterflow) in the situation that high arc distance can not continue to keep and extinguish.
The present invention is achieved in that described a kind of dynamic clearance discharger, and it comprises pair of discharge electrodes, it is characterized in that: described pair of discharge electrodes is fixed on respectively on two relative moving mechanism.
One of most preferred embodiment of the present invention, described pair of discharge electrodes are fixed on respectively in two travel mechanisms.
Two of most preferred embodiment of the present invention, one of them sparking electrode of described pair of discharge electrodes are fixed in the travel mechanism, another sparking electrode is fixed in the non-moving mechanism.
Travel mechanism of the present invention adopts rotary moving or traveling priority.
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 the thunder and lightning surge discharge, stop the fire incident that voltage switch type electric discharge device causes because of the afterflow problem, and solve high, the bulky problem of many clearance types discharger cost.
Description of drawings
Fig. 1 is the state diagram of bipolar electrode rotary moving mechanism of the present invention when normal operation.
Fig. 2 is the state diagram of bipolar electrode rotary moving mechanism of the present invention when discharge work.
Fig. 3 is the state diagram of single electrode rotary moving mechanism of the present invention when normal operation.
Fig. 4 is the state diagram of single electrode rotary moving mechanism of the present invention when discharge work.
Fig. 5 is the state diagram of bipolar electrode linear moving mechanism of the present invention when normal operation.
Fig. 6 is the state diagram of bipolar electrode linear moving mechanism of the present invention when discharge work.
Fig. 7 is the state diagram of single electrode linear moving mechanism of the present invention when normal operation.
Fig. 8 is the state diagram of single electrode linear moving mechanism of the present invention when discharge work.
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.
Among Fig. 1, Fig. 2: 1. left sparking electrode lever arm rotating shaft, 2. left sparking electrode rotation buffer gear, 3. left sparking electrode lever arm, 4. right sparking electrode lever arm, 5. right sparking electrode rotates buffer gear, 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 post, 13 shells.
Among Fig. 3, Fig. 4: 1. left sparking electrode lever arm rotating shaft, 2. left sparking electrode rotation buffer gear, 3. left sparking electrode lever arm, 7. right binding post, 8. copper electrode, 9. right sparking electrode, 10. left sparking electrode, 11. the soft copper connecting line, 12. left binding posts, 13 shells.
Among Fig. 5, Fig. 6: 21. left return springs, 22. left sparking electrode slideways, 23. left sparking electrode lever arms, 24. right sparking electrode lever arm, 25. right sparking electrode slideway, 26. right return springs, 27. right binding posts, 28. soft copper connecting line, 29. right sparking electrode, 210. left sparking electrodes, 211. soft copper connecting lines, 212. left binding post, 213 shells.
Among 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 post, 29. right sparking electrodes, 210. left sparking electrodes, 211. the soft copper connecting line, 212. left binding posts, 213 shells.
Among Fig. 9: 1. the thunder and lightning surge pulse that applies, 2. by the mains voltage waveform of short circuit (power supply afterflow), 3. power supply is by arc short circuit continuous discharge (afterflow).
Among Figure 10: 1. the thunder and lightning surge pulse that applies, 2. by the mains voltage waveform of short circuit (power supply afterflow), the mains voltage waveform of 3. recovering behind the arc extinction.
Embodiment
Embodiment one: described pair of discharge electrodes is fixed on respectively in two travel mechanisms, and described travel mechanism adopts the rotary moving mode.
A kind of dynamic clearance discharger of the present invention, as shown in Figure 1, Fig. 1 is the state diagram of bipolar electrode rotary moving mechanism of the present invention when normal operation.
On the left sparking electrode contact arm 3 of Fig. 1 left sparking electrode 10 is installed, soft copper connecting line 11 links together left sparking electrode lever arm 3 with left binding post 12, left sparking electrode lever arm 3 is installed in the left sparking electrode lever arm rotating shaft 1, and left sparking electrode rotation buffer gear 2 is installed in the left sparking electrode lever arm rotating shaft 1; Right sparking electrode 9 is installed on the right sparking electrode lever arm 4, soft copper connecting line 8 links together right sparking electrode lever arm 4 with right binding post 7, right sparking electrode lever arm 4 is installed in the right sparking electrode lever arm rotating shaft 6, and right sparking electrode rotation buffer gear 5 is installed in the right sparking electrode lever arm rotating shaft 6.Maintain 0.15-2 millimeter or larger fixed interval (FI) between left sparking electrode 10 and the right sparking electrode 9, this gap is determined by protected electric wiring supply voltage and thunder and lightning surge starting resistor.Also indicate shell 13 among Fig. 1.
A kind of dynamic clearance discharger of the present invention, as shown in Figure 2, Fig. 2 is the state diagram of bipolar electrode rotary moving mechanism of the present invention when discharge work.
Among Fig. 2 when having the thunder and lightning surge to start the present invention on the power circuit to discharge, left sparking electrode 10 and the 9 gap breakdown conductings of right sparking electrode, power supply is by the arc voltage short circuit, source current moment also forms the power supply electric arcs 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 supply electric arc can not continue to keep and extinguish.About two sparking electrodes respectively individual from the effect of electrode rotary buffer gear under, slowly get back to original position, wait for next time thunder and lightning surge disruptive discharge.Parts among Fig. 2 are the same with parts among Fig. 1.
Embodiment two: one of them sparking electrode of described pair of discharge electrodes is fixed in the travel mechanism, another sparking electrode is fixed in the non-moving mechanism.Described travel mechanism adopts the rotary moving mode.
A kind of dynamic clearance discharger of the present invention, shown in Fig. 3,4, Fig. 3 is the state diagram of single electrode rotary moving mechanism of the present invention when normal operation, Fig. 4 is the state diagram of single electrode rotary moving mechanism of the present invention when discharge work.
Fig. 3, the 4th is on Fig. 1 of embodiment one, 2 basis, remove right sparking electrode lever arm 4, right sparking electrode rotation buffer gear 5,6 three parts of right sparking electrode lever arm rotating shaft, change soft copper connecting line 8 into copper electrode 8, change right sparking electrode 9 into fixed form.Also indicate left sparking electrode lever arm rotating shaft 1, left sparking electrode rotation buffer gear 2, left sparking electrode lever arm 3, right binding post 7, soft copper connecting line 11, left binding post 12, shell 13 among Fig. 3,4.
Among Fig. 4 when having the thunder and lightning surge to start the present invention on the power circuit to discharge, left sparking electrode 10 and the 9 gap breakdown conductings of right sparking electrode, power supply is by the arc voltage short circuit, source current moment also forms the power supply electric arcs 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 is slowly got back to original position, waits for next time thunder and lightning surge disruptive discharge.Fig. 3 is the same with parts among Fig. 4.
Embodiment three: pair of discharge electrodes of the present invention is fixed on respectively in two travel mechanisms, and described travel mechanism adopts the traveling priority mode.
A kind of dynamic clearance 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 operation.
The left sparking electrode lever arm 23 of Fig. 5 is installed on the left sparking electrode slideway 22, and left return spring 21 is installed between left sparking electrode slideway 22 and the left sparking electrode lever arm 23.At left sparking electrode lever arm 23 left sparking electrode 210 is installed, soft copper connecting line 211 links together left sparking electrode lever arm 23 with left binding post 212.Scribble damping lubricating oil between left sparking electrode slideway 22 and the left sparking electrode lever arm 23;
Right sparking electrode lever arm 24 is installed on the right sparking electrode slideway 25, and right return spring 26 is installed between right sparking electrode slideway 25 and the right sparking electrode lever arm 24.At right sparking electrode lever arm 24 right sparking electrode 29 is installed, soft copper connecting line 28 links together right sparking electrode lever arm 24 with right binding post 27.Scribble damping lubricating oil between right sparking electrode slideway 25 and the right sparking electrode lever arm 24; Maintain 0.15-2 millimeter or larger fixed interval (FI) between left sparking electrode 210 and the right sparking electrode 29, this gap is determined by protected electric wiring supply voltage and thunder and lightning surge starting resistor.Also indicate shell 213 among Fig. 5.
A kind of dynamic clearance 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 discharge work.
Among Fig. 6 when having the thunder and lightning surge to start the present invention on the power circuit to discharge, left sparking electrode 210 and the 29 gap breakdown conductings of right sparking electrode, power supply is by arc short circuit, and source current moment also forms the short circuiting arc electric currents 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 the damping lubricant drag, promote respectively left sparking electrode lever arm 23 and right sparking electrode lever arm 24 is got back to original position, wait for next time thunder and lightning surge disruptive discharge.Parts among Fig. 6 are the same with parts among Fig. 5.
Embodiment four: one of them sparking electrode of described pair of discharge electrodes is fixed in the travel mechanism, another sparking electrode is fixed in the non-moving mechanism.Described travel mechanism adopts the traveling priority mode.
A kind of dynamic clearance discharger of the present invention, such as Fig. 7, shown in Figure 8, Fig. 7 is the state diagram of single electrode linear moving mechanism of the present invention when normal operation.Fig. 8 is the state diagram of single electrode linear moving mechanism of the present invention when discharge work.
Fig. 7, Fig. 8 are on the basis of embodiment three Fig. 5, Fig. 6, remove right sparking electrode slideway 25, right return spring 26,28 3 parts of soft copper connecting line, and change the right sparking electrode lever arm 24 among Fig. 5, Fig. 6 among Fig. 7, Fig. 8 right sparking electrode arm 24, be fixed form.The parts of Fig. 7 are the same with the parts of Fig. 8.
Among Fig. 8 when having the thunder and lightning surge to start the present invention on the power circuit to discharge, left sparking electrode 210 and the 29 gap breakdown conductings of right sparking electrode, power supply is by arc short circuit, source current moment also forms the power supply electric arcs 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 is just slowly got back to original position, waits for next time thunder and lightning surge disruptive discharge.Also indicate left return spring 21 among Fig. 7, Fig. 8, 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.
Fig. 9 does not use the present invention at the test waveform figure of AC power line, among Fig. 9: 1. the thunder and lightning surge pulse that applies, 2. by the mains voltage waveform of short circuit (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, among Figure 10: 1. the thunder and lightning surge pulse that applies, and 2. by the mains voltage waveform of short circuit (power supply afterflow), the mains voltage waveform of 3. recovering behind the arc extinction.
Claims (4)
1. dynamic clearance discharger, it comprises pair of discharge electrodes, it is characterized in that: described pair of discharge electrodes is fixed on respectively on two relative moving mechanism.
2. described a kind of dynamic clearance discharger according to claim 1, it is characterized in that: described pair of discharge electrodes is fixed on respectively in two travel mechanisms.
3. described a kind of dynamic clearance discharger according to claim 1, it is characterized in that: one of them sparking electrode of described pair of discharge electrodes is fixed in the travel mechanism, another sparking electrode is fixed in the non-moving mechanism.
4. it is characterized in that according to claim 1 and 2 or 3 described a kind of dynamic clearance dischargers: described travel mechanism adopts rotary moving or traveling priority.
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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| Application Number | Priority Date | Filing Date | Title |
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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 true CN103311915A (en) | 2013-09-18 |
| CN103311915B CN103311915B (en) | 2015-12-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594152A (en) * | 2018-07-19 | 2018-09-28 | 北京丹华正齐电力技术有限公司 | A kind of two-way controllable arc 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 |
-
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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594152A (en) * | 2018-07-19 | 2018-09-28 | 北京丹华正齐电力技术有限公司 | A kind of two-way controllable arc generator |
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| CN103311915B (en) | 2015-12-23 |
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