CN102664352B - High-voltage large-current transient automatic discharge switch capable of presetting gaps - Google Patents
High-voltage large-current transient automatic discharge switch capable of presetting gaps Download PDFInfo
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- CN102664352B CN102664352B CN 201210158464 CN201210158464A CN102664352B CN 102664352 B CN102664352 B CN 102664352B CN 201210158464 CN201210158464 CN 201210158464 CN 201210158464 A CN201210158464 A CN 201210158464A CN 102664352 B CN102664352 B CN 102664352B
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Abstract
The invention discloses a high-voltage large-current transient automatic discharge switch capable of presetting gaps, which comprises a pair of left and right hollow round copper balls and a switch base (1), wherein the left ball is an electric ball (11), the right ball is a manual ball (10), and the electric ball is controlled to move to enable the discharge switch to become a variable-ball-gap switch in the charging/discharging period; an electric device, a manual device and a guide rail (6) are arranged on the switch base (1); two ends of the guide rail (6) are fixed on the switch base (1)through a positioning plate (16); the electric device is positioned at the left end of the guide rail (6); the electric ball (11) is connected with the electric device through a left isolated uprightrod (9); the manual device is positioned at the right end of the guide rail (6); and the manual ball (10) is connected with the manual device through a right isolated upright rod (8). The switch disclosed by the invention has the advantages of reasonable design, good performance, advanced indexes, compact structure, safety, reliability and high cost performance, and is suitable for applications of pulse power systems.
Description
Technical field
The present invention relates to high-voltage discharge and control technology field thereof, particularly a kind of high-voltage large current transient state automatic discharging switch of in advance adjust the play is applicable to high-voltage large current spark needs.
Background technology
Discharge switch occupies special status in pulse power system, this is because the quality of switch performance directly has influence on the technical parameter of output pulse, especially exports the rise time of pulse.In addition, switch is often worked under high voltage, large electric current, condition of work is very abominable, punch-through in the switching process and the discharge physics process on the switch electrode are all very complicated, therefore, having the tolerating high voltage heavy current, puncture short and dispersed little, the inductance of time delay and the development of the characteristic such as resistance is little, electrode erosion is little and all kinds discharging switch element that can steady operation, is valued problem doubly in the current Pulse Power Techniques.At present, widely used Closing Switch mainly contains following several in the Pulse Power Techniques: ball gap spark switch, thyratron, vacuum switch, magnetic switch, reverse-conducting switch, mercury ignitron, thyristor, high-power super-high-speed semiconductor switch (RSD) etc.These switches respectively have pluses and minuses, are applicable to respectively different occasions.Ball gap spark switch is a kind of high-voltage switch gear that withstand voltage is the highest in all switches, electric current is maximum.The manual adjustments that adopt during present existing ball gap spark switch discharge more, discharge voltage is uncertain, and discharge is unexpected, and controllability and fail safe are bad, and discharge time and stroke are longer simultaneously.For automatic sphere gap switch, its structure adopts electric triggering type more, and circuit is complicated, and cost is high, and fault is many, affects the stability of a system.Therefore, lack and a kind ofly to satisfy simultaneously volume little, high withstand voltage (hundred kV levels), Qiang Nailiu (tens of kA level), controllability is good, cost performance is high a kind of transient state automatic discharging switch and satisfy and study needs.This switch is badly in need of in pulse power system very much.
Summary of the invention
The high-voltage large current transient state automatic discharging switch that the purpose of this invention is to provide a kind of in advance adjust the play is applied to large electric current (20kA) the transient state automatic discharging switch of the in advance high voltage of adjust the play (120kV) of pulse power system.
The purpose of invention can adopt following technical scheme to realize:
Described discharge switch comprises a pair of left and right sides open circles copper ball, switch pedestal, its left ball is electric ball, right ball is manual ball, by control electric ball move make discharge switch during discharging and recharging, forms the change sphere gap switch, in switch pedestal electric device, hand gear and guide rail are set, the guide rail two ends are fixed on switch pedestal by location-plate, and electric device is positioned at the left end of guide rail, and electric ball links to each other with electric device by the left vertical rod of insulation; Hand gear is positioned at the right-hand member of guide rail, and manually ball is connected with hand gear by the right vertical rod of insulation.
Described electric device comprises left slider, electromagnet, electromagnet is fixed on the switch pedestal, and electric ball is fixed on the left slider by the left vertical rod of insulating, and left slider is arranged on the left end of guide rail, the right-hand member of left slider is connected connection with electromagnet, be set with Compress Spring on the connecting axle.
Described hand gear comprises right slide block, transfer handle, manually ball is fixed on the right slide block by the right vertical rod of insulating, and right slide block is arranged on the right-hand member of guide rail, in the right slide block screw thread is set, one end of transfer handle is screw structure, and it passes location-plate and interior being threaded of right slide block of guide rail right-hand member.
Described electric ball one end is provided with the high input voltage interface, and manually ball one end arranges the High voltage output interface.
On the described switch pedestal protective cover is set, at protective cover maintenance window is set.
Preset ball gap scale is set on the switch pedestal of described right slide block one side, and right slide block one side is provided with pointer, and pointer is relative apart from scale with ball.
Described open circles copper ball diameter is 100mm, and thickness is 2mm.
Described ball stand-off distance from adjustable range be 0～70mm, electric ball wink, moving distance was 15mm.
The high-voltage large current transient state automatic discharging switch of the in advance adjust the play of the present invention's development has following characteristics: (1) overall dimensions is little, and integral sealing is processed, and is convenient to mobile and flexible the placement, requires low to space environment; (2) discharging gap can regulate in advance, saves the discharge switch stroke, increases discharge reliability and expection property; (3) high withstand voltage, Qiang Nailiu, ON time is short; (4) controllability is good, presses electronic button and can trigger.
In sum, the present invention is reasonable in design, function admirable, and index is advanced, and compact conformation can be used for the highpowerpulse generating means.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the vertical view (enlarged drawing) of Fig. 1.
Among the figure: 1, switch pedestal, 2, regulating handle, 3, left slider, 4, right slide block, 5, ball gap scale, 6, guide rail, 7, electromagnet, 8, right vertical rod, 9, left vertical rod, 10, manual ball, 11, electric ball, 12, the High voltage output interface, 13, high input voltage interface, 14, protective cover, 15, maintenance window, 16, location-plate.
Embodiment
By reference to the accompanying drawings, specific embodiments of the invention are described.
As shown in Figure 1: described discharge switch comprises 1 of a pair of left and right sides open circles copper ball, switch bottom, its left ball is electric ball 11, right ball is manual ball 10, electric ball 11 1 ends are provided with high input voltage interface 13, manually ball 10 1 ends arrange High voltage output interface 12, by control electric ball 11 move make discharge switch during discharging and recharging, forms the change sphere gap switch, in switch pedestal 1 electric device, hand gear and guide rail 6 are set, guide rail 6 two ends are fixed on switch pedestal 1 by location-plate 16, and electric device is positioned at the left end of guide rail 6.Electric device comprises left slider 3, electromagnet 7, electromagnet 7 is fixed on the switch pedestal 1, electric ball 11 is fixed on the left slider 3 by the left vertical rod 9 of high-strength insulating, left slider 3 is arranged on the left end of guide rail 6, the right-hand member of left slider 3 is connected coaxial connection with electromagnet, be set with Compress Spring on the connecting axle.Hand gear is positioned at the right-hand member of guide rail, described hand gear comprises right slide block 4, transfer handle 2, manually ball 10 is fixed on the right slide block 4 by the right vertical rod 8 of high-strength insulating, right slide block 4 is arranged on the right-hand member of guide rail 6, the right slide block 4 interior screw threads that arrange, one end of transfer handle 2 is screw structure, and it passes location-plate 16 and 4 interior being threaded of right slide block of guide rail right-hand member.Preset ball gap scale is set on the switch pedestal of right slide block one side, and right slide block one side is provided with pointer, and pointer is relative apart from scale with ball.The open circles copper ball diameter of the present embodiment is 100mm, and thickness is 2mm.
When electromagnet 7 was failure to actuate, Compress Spring was given left ball 11 elastic force left, forces ball to remain on initial position.When pressing electronic button (in Long-distance Control cashier's office in a shop), electromagnet 7 electric adhesive since with electric ball 11 coaxial linking together, force its Compress Spring to move right.When unclamping electronic button, the electromagnet dead electricity to the pulling force disappearance of electric ball 11, because the extruding of 11 pairs of springs of moving ball under the elastic force effect of spring, forces electric ball 11 to be moved to the left, is got back to initial position.
Before the test, at first different ball stand-off distances are demarcated from puncture voltage, the ball stand-off distance is from beginning adjusting from 1mm, and the adjusting step-length is 1mm, until puncture voltage reaches till the 120kV, records different ball stand-off distances from the breakdown voltage value of correspondence.
During charging, the puncture voltage of preset ball gap is higher than the charging voltage of setting, operated by rotary motion ball gap spacing greater than the ball gap puncture spacing approximately 8mm(electric ball wink moving distance half round up), fully guarantee the disruptive discharge phenomenon that in charging process, do not meet accident.During discharge, make electric ball instantaneous close by electronic button and electromagnetism transmission mechanism, reduce the two balls gap in when charging, the distance that makes two balls less than ball gap striking distance approximately 7mm(or ball stand-off distance from being zero), ball gap actual breakdown voltage is lower than the charging voltage of setting, reaches the purpose of reliable discharge.Discharge finishes, and electric ball automatically resets.
The key technical indexes of the present embodiment is as follows:
High-voltage discharging switch overall dimensions: 30cm * 70cm * 90cm, withstand voltage: 0～120kV, anti-flow valuve: 0～20kA, stray inductance:＜10 μ H, the discharge ON time:＜1 μ s, can-key operation.。
This high voltage switching device is through Multitest checks such as the test of RCL circuit discharging, the tests of RC circuit discharging, and its compressive resistance, anti-intensity of flow, ON time all satisfy test requirements document.
Can explain in more detail the present invention by the above embodiments, disclosed purpose is intended to protect all changes and improvements in the scope of the invention, and the present invention is not limited to top embodiment.
Claims (6)
1. pre-high-voltage large current transient state automatic discharging switch of adjust the play, comprise a pair of left and right sides open circles copper ball, switch pedestal (1), it is characterized in that: left ball is electric ball (11), right ball is manual ball (10), moves by the control electric ball to make discharge switch form the change sphere gap switch during discharging and recharging; In switch pedestal (1) electric device, hand gear and guide rail (6) are set, guide rail (6) two ends are fixed on switch pedestal (1) by location-plate (16), electric device is positioned at the left end of guide rail (6), and electric ball (11) links to each other with electric device by the left vertical rod (9) of insulation; Hand gear is positioned at the right-hand member of guide rail (6), and manually ball (10) is connected with hand gear by the right vertical rod (8) of insulation; Described electric device comprises left slider (3), electromagnet (7), electromagnet (7) is fixed on the switch pedestal (1), electric ball (11) is fixed on the left slider (3) by left vertical rod (9), left slider (3) is arranged on the left end of guide rail (6), the right-hand member of left slider (3) is connected 7 with electromagnet) coaxial connection, be set with Compress Spring on the connecting axle; Described hand gear comprises right slide block (4), transfer handle (2), manually ball (10) is fixed on the right slide block (4) by the right vertical rod of insulating, right slide block (4) is arranged on the right-hand member of guide rail (6), right slide block arranges screw thread in (4), one end of transfer handle (2) is screw structure, and it passes location-plate (16) and interior being threaded of right slide block (4) of guide rail right-hand member.
2. the high-voltage large current transient state automatic discharging switch of in advance adjust the play according to claim 1, it is characterized in that: described electric ball (11) one ends are provided with high input voltage interface (13), and manually ball (10) one ends arrange High voltage output interface (12).
3. the high-voltage large current transient state automatic discharging switch of in advance adjust the play according to claim 1 is characterized in that: protective cover (14) is set on the described switch pedestal (1), at protective cover (14) maintenance window (15) is set.
4. the high-voltage large current transient state automatic discharging switch of in advance adjust the play according to claim 1, it is characterized in that: preset ball gap scale (5) is set on the switch pedestal of described right slide block (4) one sides, right slide block (4) one sides are provided with pointer, and pointer is relative apart from scale with ball.
5. the high-voltage large current transient state automatic discharging switch of in advance adjust the play according to claim 1, it is characterized in that: described open circles copper ball diameter is 100mm, and thickness is 2mm.
6. the high-voltage large current transient state automatic discharging switch of in advance adjust the play according to claim 1 is characterized in that: the ball stand-off distance from adjustable range be 0～70mm, the wink of electric ball, moving distance was 15mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210158464 CN102664352B (en) | 2012-05-22 | 2012-05-22 | High-voltage large-current transient automatic discharge switch capable of presetting gaps |
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| CN 201210158464 CN102664352B (en) | 2012-05-22 | 2012-05-22 | High-voltage large-current transient automatic discharge switch capable of presetting gaps |
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| CN102664352A CN102664352A (en) | 2012-09-12 |
| CN102664352B true CN102664352B (en) | 2013-10-23 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106526330A (en) * | 2016-12-30 | 2017-03-22 | 贵州电网有限责任公司电力科学研究院 | Portable impact current generator for measuring impact ground resistance |
| CN110346711B (en) * | 2019-07-09 | 2021-04-20 | 国网陕西省电力公司电力科学研究院 | Dynamic discharge process simulation device for isolating switch and test device and method thereof |
| CN114646285B (en) * | 2022-03-11 | 2022-11-15 | 哈尔滨理工大学 | Method and equipment for determining diameter of ball gap spark switch of transformer neutral point overvoltage suppression system and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3493699A (en) * | 1967-11-09 | 1970-02-03 | Ite Circuit Breaker Ltd | Isolating switch with sphere gap |
| EP0668643A1 (en) * | 1994-02-21 | 1995-08-23 | Nippon Paint Co., Ltd. | High voltage sphere-gap discharge switch, high voltage pulse generation circuit and high voltage discharge switching method |
| CN2267463Y (en) * | 1995-08-29 | 1997-11-12 | 泰兴市能建实业公司 | Portable type balls interval arrangement for measuring properties of high voltage electricity |
| CN201213198Y (en) * | 2008-07-04 | 2009-03-25 | 北京北广科技股份有限公司 | Lightning protector for large power radio frequency antenna |
| CN201616671U (en) * | 2010-03-05 | 2010-10-27 | 武汉特试特科技有限公司 | Remote control sphere gap |
| CN202068124U (en) * | 2011-04-23 | 2011-12-07 | 上海电气输配电试验中心有限公司 | Totally-enclosed forced trigger protection gap apparatus for serial capacitor compensation device |
| CN202602267U (en) * | 2012-05-22 | 2012-12-12 | 中国人民解放军总参谋部工程兵科研三所 | High-voltage heavy-current transient automatic discharge switch with preset gap |
-
2012
- 2012-05-22 CN CN 201210158464 patent/CN102664352B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3493699A (en) * | 1967-11-09 | 1970-02-03 | Ite Circuit Breaker Ltd | Isolating switch with sphere gap |
| EP0668643A1 (en) * | 1994-02-21 | 1995-08-23 | Nippon Paint Co., Ltd. | High voltage sphere-gap discharge switch, high voltage pulse generation circuit and high voltage discharge switching method |
| CN2267463Y (en) * | 1995-08-29 | 1997-11-12 | 泰兴市能建实业公司 | Portable type balls interval arrangement for measuring properties of high voltage electricity |
| CN201213198Y (en) * | 2008-07-04 | 2009-03-25 | 北京北广科技股份有限公司 | Lightning protector for large power radio frequency antenna |
| CN201616671U (en) * | 2010-03-05 | 2010-10-27 | 武汉特试特科技有限公司 | Remote control sphere gap |
| CN202068124U (en) * | 2011-04-23 | 2011-12-07 | 上海电气输配电试验中心有限公司 | Totally-enclosed forced trigger protection gap apparatus for serial capacitor compensation device |
| CN202602267U (en) * | 2012-05-22 | 2012-12-12 | 中国人民解放军总参谋部工程兵科研三所 | High-voltage heavy-current transient automatic discharge switch with preset gap |
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