CN105610140A - Lightning protection surge protection device - Google Patents
Lightning protection surge protection device Download PDFInfo
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- CN105610140A CN105610140A CN201510659459.7A CN201510659459A CN105610140A CN 105610140 A CN105610140 A CN 105610140A CN 201510659459 A CN201510659459 A CN 201510659459A CN 105610140 A CN105610140 A CN 105610140A
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- inductance
- lightning
- lightning protection
- surge protection
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Abstract
The invention relates to the overvoltage protection field and discloses a lightning protection surge protection device. The device comprises a discharge module (1), an alarm indication circuit (2), a plastic box body (3), an insulation lining (4), a first conductive connecting piece (5), an insulation fixing support (6), a second conductive connecting piece (9), a remote communication output connecting line (10), a remote communication output terminal (11), a module clamping foot (12) and a metal wiring crimping frame (13). The device possesses advantages that hardness is high; conductivity is good; a melting point is high; an electric ablation property is small; powder dropping is not generated and so on. A local fault alarm indicating lamp and a far-end remote communication alarm dry contact signal are suitable for on-site maintenance and far-end monitoring functions.
Description
Technical field
The present invention relates to overvoltage protection field, relate in particular to a kind of lightning protection surge protection.
Background technology
Be applied at present the protector of direct lightning strike and induction thunder, generally adopt the surge protector of the thunder charge type of directly releasing. This type of protector baseIn clearance-type arc discharge principle, the discharging gap electrode slice that adopts graphite material to make. But in prior art, hard due to graphite sheet-like electrode tabsSpend low, frangible, easily come off dry linting, the moisture absorption, formed the electric discharge of large discharge capacity during when being struck by lightning, in discharging gap, because of air breakdownThe discharge impact producing and cause graphite electrode sheet cracking or dry linting, causes gap shorting and causes that spark leaks, and causes short circuit malfunction, impactThe normal power supply of equipment, even breaking out of fire.
Summary of the invention
The invention provides a kind of lightning protection surge protection, solve the discharge impact producing because of air breakdown in prior art and cause graphite electrode sheet to be openedSplit or dry linting, cause gap shorting and cause that spark leaks, cause the technical problem of short circuit malfunction.
The object of the invention is to be achieved through the following technical solutions:
A kind of lightning protection surge protection, comprising: discharge module 1, alarm indicating circuit 2, plastic box body 3, insulating bushing 4, the first conduction connectPart 5, insulated fixing support 6, the second conducting connecting part 9, remote signalling output connecting line 10, remote signalling output wiring terminal 11, module card base 12, goldBelong to wiring crimping frame 13, wherein, described alarm indicating circuit 2 is located in described plastic box body 3, described discharge module 1 and described alarm instruction electricityRoad 2 isolates by described insulating bushing 4, and the capacitance group 14 on described discharge module 1 connects by described the first conducting connecting part 5 and electrode slice 8Connect, insulated fixing support 6 is for fixed electrode film 8, and described alarm indicating circuit 2 is by described remote signalling output connecting line 10 and described remote signalling outputBinding post 11 connects, and described discharge module is fixed by insulated fixing support 6, described discharge module 1 by described the second conducting connecting part 9 withLive wire is connected with zero line, and by metal connection crimping frame 13, coupling part is fixed.
The present invention with respect to the technique effect of prior art is:
1, sparking electrode material selection tungsten copper of the present invention, have hardness high, conduct electricity very well, fusing point is high, electricity ablative little, dry linting etc. is unexcellentPoint, guarantees the repeatedly impact of the large electric current of tolerance in direct lightning strike and induction thunder situation, the long service life of device.
2, between each discharging gap electrode slice, adopt the isolation of convex cumulative insulation spacer, the spacing between each tungsten copper discharging gap is identical, has strengthenedDielectric strength between tungsten copper electrode and igniting electric capacity, inductance jockey, and lightning stroke surge energy can be gathered in to each electrode slice middle part, shapeBecome complete thunder discharge bundle, avoid the electric arc that divergence causes outwards to spray.
3, capacitance provided by the present invention, inductance value and resistance value are selected formula, can calculate tool according to different impact capacity and lightning waveformBody numerical value, applied widely.
4, discharging gap quantity provided by the present invention, clearance distance, can be according to the maximum continuous running voltage numerical value of network system and anti-remaining electricityPressure energy power is selected.
5, the shape of the electrode slice of tungsten copper discharging gap provided by the present invention, size, can select according to lightning waveform kind, discharge capacity.
6, the connected mode between tungsten copper discharging gap electrode and π shape electric capacity, inductance has ensured reliable connection the between them.
7, local fault warning indicator lamp provided by the present invention and far-end remote signalling alarm dry contact signal, be applicable to on-site maintenance and remote monitoring meritEnergy.
8, adopt the combination of capacitances in series inductance and resistance as ignition trigger circuit, can avoid high-frequency electromagnetic pulse and cause electric discharge. LogicalCross inductance L and carry out tuningly, can be applicable to the lightning surge that climbing speed is higher and the impact forming.
9, adopt electric resistance partial pressure and current limliting, reduce the impact of thunderbolt overload on ignition trigger and instruction warning circuit.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing to required use in embodiment is done to letter belowSingly introduce, apparently, the accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art,Do not paying under the prerequisite of creative work, also can obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of lightning protection surge protection of the embodiment of the present invention;
Fig. 2 is the electrical block diagram of a kind of lightning protection surge protection of the embodiment of the present invention;
Fig. 3 is the schematic diagram of three kinds of shapes of the tungsten copper electrode slice of the embodiment of the present invention;
Fig. 4 is the schematic diagram of three kinds of shapes of the convex cumulative insulation spacer of the embodiment of the present invention;
Fig. 5 is the electrode slice of the embodiment of the present invention and the schematic diagram of capacitance group hook-type connected mode;
Fig. 6 is the electrode slice of the embodiment of the present invention and the schematic diagram of the L shaped connected mode of capacitance group.
1-discharge module, 2-alarm indicating circuit, 3-plastic box body, 4-insulating bushing, 5-the first conducting connecting part, 6-insulated fixing support, 7-are protrudingShape cumulative insulation spacer, 8-electrode slice, 9-the second conducting connecting part, 10-remote signalling output connecting line, 11-remote signalling output wiring terminal, 12-module cardPin, 13-metal connection crimping frame, 14-capacitance group, 15-resonant inductance, 16-current-limiting resistor voltage divider.
Detailed description of the invention
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments to the present invention do intoThe explanation that one step is detailed.
As shown in Figure 1, be a kind of lightning protection surge protection of the embodiment of the present invention, comprising: discharge module 1, alarm indicating circuit 2, plastic casingConnecting line 10 is exported in body 3, insulating bushing 4, the first conducting connecting part 5, insulated fixing support 6, the second conducting connecting part 9, remote signalling, remote signalling is defeatedGo out binding post 11, module card base 12, metal connection crimping frame 13, wherein, described alarm indicating circuit 2 is located in described plastic box body 3,Described discharge module 1 is isolated by described insulating bushing 4 with described alarm indicating circuit 2, and the capacitance group 14 on described discharge module 1 is passed through instituteState the first conducting connecting part 5 and be connected with electrode slice 8, insulated fixing support 6 is for fixed electrode film 8, described in described alarm indicating circuit 2 passes throughRemote signalling output connecting line 10 is connected with described remote signalling output wiring terminal 11, and described discharge module is fixed by insulated fixing support 6, described electric discharge mouldPiece 1 is connected with live wire and zero line by described the second conducting connecting part 9, and by metal connection crimping frame 13, coupling part is fixed.
Wherein, as shown in Figure 2, the π shape that described discharge module 1 is connected and composed by N+1 tungsten copper discharging gap, electric capacity that a N capacitance is identical is putElectricity circuit, resonant inductance 15, current-limiting resistor voltage divider 16 form, and wherein, the 1st discharging gap is connected with live wire, N+1 discharging gap andZero line connects, and the conductor between all electric capacity one end and two tungsten copper discharging gaps is connected, and the other end is connected with described resonant inductance 15 one end, described inResonant inductance 15 other ends are connected with one end of described current-limiting resistor voltage divider 16, and the other end of described current-limiting resistor voltage divider 16 is connected with zero line.
As shown in Figure 2, described alarm indicating circuit 2 comprises resistance, filter inductance, rectification circuit, filter capacitor, light emitting diode, light-operated continuingElectrical equipment, wherein, live wire, after the series connection of resistance, filter inductance, is connected with an input of rectification circuit, and another of described rectification circuit is defeatedEnter end and be connected with described resonant inductance 15 other ends, two outputs of described rectification circuit connect filter capacitor, and of described rectification circuit is defeatedGo out end and connect input of photorelay by light emitting diode, another output of described rectification circuit connects the another of described photorelayAn input, the output of described photorelay is connected with described remote signalling output wiring terminal 11 by described remote signalling output connecting line 10.
The spacing of tungsten copper discharging gap is 0.2-1.0mm, and each tungsten copper discharging gap be spacing identical etc. discharge gap.
The capacitance C=kI/ (2 π fU) of all electric capacity, wherein, I is electric discharge total current, f is lightning wave frequency, the rated voltage that U is electric capacity, k isSurplus coefficient, K > 1, the inductance value of inductance coil L meets R2 > and 4L/C, the equivalent total resistance that R is series circuit. Utilize inductance dead resistance,Equivalent resistance and series resistance that discharge resistance, capacitor dielectric loss form, form RLC series circuit with external inductance and electric capacity, selects electricityThe sense L R2 that satisfies condition > 4L/C, make circuit in damping state but near overlooking damping state, to eliminate overshoot and postpone the surge punching to rear classHit.
As shown in Figure 3, tungsten copper electrode slice 9 can be square, rectangle, circle or kidney-shaped. Adopt tungsten copper as multistage discharging gap material,Loss is little, and electrical speed is fast, and arc ablation resistance performance is good.
As shown in Figure 4, convex cumulative insulation spacer 4 is convex or spill, interior band boss or concave station. Between tungsten copper discharging gap, place convex cumulativeInsulation spacer, each tungsten copper discharging gap sheet and convex cumulative insulation spacer are assembled with overlapped way.
As shown in Figure 5 and Figure 6, described the first conducting connecting part (5) is hook-shaped or L shape.
The operation principle of the embodiment of the present invention is as follows:
1, in the time not being struck by lightning, because each tungsten copper discharging gap is connected in series, the breakdown voltage of its breakdown voltage and discharge igniting electric capacity higher thanThe operating voltage of power supply, so operating supply voltage is not enough to puncture tungsten copper discharging gap, now institute is gapped does not work, indicator lamp is bright, simultaneously distantNormally closed or the dry contact signal often opened of letter warning circuit output, so that remote capture warning circuit normally closed or the state often opened.
2,, in the time being struck by lightning, because tungsten copper discharging gaps at different levels are less, the 1st grade of tungsten copper discharging gap punctured by thunderbolt, and is provided with electric capacitySeries inductance is carried out auxiliary firing electric discharge, after the disruptive discharge successively under firing circuit effect of each discharging gap, after all gap discharge conductings, headDeboost between tail gap is clamped at lower numerical value, guarantees that the safety that deboost can not exceed equipment bears voltage.
3, when device is because being struck by lightning or abnormity of power supply damages or when power-off, local alarm indicator lamp extinguishes, the output of the warning circuit of remote signalling is simultaneously differentUnder reason condition, (device breaks down or power-off) often opens or normally closed dry contact signal.
4, convex or the spill setting in insulation cumulative pad, the electrode slice that can guide thunder energy to converge in each tungsten copper discharging gap hits exactly, reallyProtect lightning current progressively diffusion towards periphery electric discharge in the middle of electrode slice, avoid the electric arc of discharge generation outwards to spray.
5, due to igniting electric capacity and the effect of connecting of inductance, resistance, the capacitive reactance of electric capacity under lightning wave frequency is larger, the lightning surge electric current passing throughLittle, the withstand voltage voltage producing on electric capacity while thunderbolt that is greater than of electric capacity in its circuit, therefore electric capacity can not damage because of thunderbolt.
The present invention has following beneficial effect:
1, sparking electrode material selection tungsten copper of the present invention, have hardness high, conduct electricity very well, fusing point is high, electricity ablative little, dry linting etc. is unexcellentPoint, guarantees the repeatedly impact of the large electric current of tolerance in direct lightning strike and induction thunder situation, the long service life of device.
2, between each discharging gap electrode slice, adopt the isolation of convex cumulative insulation spacer, the spacing between each tungsten copper discharging gap is identical, has strengthenedDielectric strength between tungsten copper electrode and igniting electric capacity, inductance jockey, and lightning stroke surge energy can be gathered in to each electrode slice middle part, shapeBecome complete thunder discharge bundle, avoid the electric arc that divergence causes outwards to spray.
3, capacitance provided by the present invention, inductance value and resistance value are selected formula, can calculate tool according to different impact capacity and lightning waveformBody numerical value, applied widely.
4, discharging gap quantity provided by the present invention, clearance distance, can be according to the maximum continuous running voltage numerical value of network system and anti-remaining electricityPressure energy power is selected.
5, the shape of the electrode slice of tungsten copper discharging gap provided by the present invention, size, can select according to lightning waveform kind, discharge capacity.
6, the connected mode between tungsten copper discharging gap electrode and π shape electric capacity, inductance has ensured reliable connection the between them.
7, local fault warning indicator lamp provided by the present invention and far-end remote signalling alarm dry contact signal, be applicable to on-site maintenance and remote monitoring meritEnergy.
8, adopt the combination of capacitances in series inductance and resistance as ignition trigger circuit, can avoid high-frequency electromagnetic pulse and cause electric discharge. LogicalCross inductance L and carry out tuningly, can be applicable to the lightning surge that climbing speed is higher and the impact forming.
9, adopt electric resistance partial pressure and current limliting, reduce the impact of thunderbolt overload on ignition trigger and instruction warning circuit.
Above the present invention is described in detail, has applied specific case herein principle of the present invention and embodiment are set forth, aboveThe explanation of embodiment is just for helping to understand method of the present invention and core concept thereof; Meanwhile, for one of ordinary skill in the art, according to thisThe thought of invention, all will change in specific embodiments and applications, and in sum, this description should not be construed as thisBright restriction.
Claims (8)
1. a lightning protection surge protection, is characterized in that, comprising: discharge module (1), alarm indicating circuit (2), plastic box body (3), insulationLining (4), the first conducting connecting part (5), insulated fixing support (6), the second conducting connecting part (9), remote signalling output connecting line (10), distantLetter output wiring terminal (11), module card base (12), metal connection crimping frame (13), wherein, described in described alarm indicating circuit (2) is located atIn plastic box body (3), described discharge module (1) is isolated by described insulating bushing (4) with described alarm indicating circuit (2), described electric dischargeCapacitance group (14) in module (1) is connected with electrode slice (8) by described the first conducting connecting part (5), insulated fixing support (6) forFixed electrode film (8), described alarm indicating circuit (2) is by described remote signalling output connecting line (10) and described remote signalling output wiring terminal (11)Connect, described discharge module is fixing by insulated fixing support (6), and described discharge module (1) is by described the second conducting connecting part (9) and fireLine is connected with zero line, and by metal connection crimping frame (13), coupling part is fixed.
2. lightning protection surge protection according to claim 1, is characterized in that, described discharge module (1) is by N+1 tungsten copper discharging gap, Nπ shape discharge circuit, resonant inductance (15), current-limiting resistor voltage divider (16) composition that the electric capacity that individual capacitance is identical connects and composes, wherein, the 1stDischarging gap is connected with live wire, and N+1 discharging gap is connected with zero line, and the conductor between all electric capacity one end and two tungsten copper discharging gaps is connected,The other end is connected with described resonant inductance (15) one end, and one end of described resonant inductance (15) other end and described current-limiting resistor voltage divider (16) connectsConnect, the other end of described current-limiting resistor voltage divider (16) is connected with zero line.
3. lightning protection surge protection according to claim 2, is characterized in that, described alarm indicating circuit (2) comprise resistance, filter inductance,Rectification circuit, filter capacitor, light emitting diode, photorelay, wherein, live wire is after the series connection of resistance, filter inductance, with rectification circuitInput connects, and another input of described rectification circuit is connected with described resonant inductance (15) other end, two of described rectification circuitOutput connects filter capacitor, and an output of described rectification circuit connects input of photorelay, described rectification by light emitting diodeAnother output of circuit connects another input of described photorelay, and the output of described photorelay connects by described remote signalling outputWiring (10) is connected with described remote signalling output wiring terminal (11).
4. according to the lightning protection surge protection described in any one in claims 1 to 3, it is characterized in that, the spacing of tungsten copper discharging gap is 0.2-1.0mm,And each tungsten copper discharging gap be spacing identical etc. discharge gap.
5. according to the lightning protection surge protection described in any one in claims 1 to 3, it is characterized in that, the capacitance C=kI/ (2 π fU) of all electric capacity,Wherein, I is electric discharge total current, and f is lightning wave frequency, the rated voltage that U is electric capacity, k is surplus coefficient, K > 1, the inductance of inductance coil LValue meets R2 > 4L/C, the equivalent total resistance that R is series circuit.
6. according to the lightning protection surge protection described in any one in claims 1 to 3, it is characterized in that, tungsten copper electrode slice (9) can be square,Rectangle, circle or kidney-shaped.
7. according to the lightning protection surge protection described in any one in claims 1 to 3, it is characterized in that, convex cumulative insulation spacer (4) is convexOr spill, interior band boss or concave station.
8. according to the lightning protection surge protection described in any one in claims 1 to 3, it is characterized in that, described the first conducting connecting part (5) is hookShape or L shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510659459.7A CN105610140B (en) | 2015-10-12 | 2015-10-12 | A kind of lightning protection surge protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510659459.7A CN105610140B (en) | 2015-10-12 | 2015-10-12 | A kind of lightning protection surge protection |
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| Publication Number | Publication Date |
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| CN105610140A true CN105610140A (en) | 2016-05-25 |
| CN105610140B CN105610140B (en) | 2018-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510659459.7A Active CN105610140B (en) | 2015-10-12 | 2015-10-12 | A kind of lightning protection surge protection |
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| CN (1) | CN105610140B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565850A (en) * | 2018-05-21 | 2018-09-21 | 西安交通大学 | The concatenated lightning protection device of multistage gap |
| CN108711836A (en) * | 2018-07-02 | 2018-10-26 | 李红斌 | A kind of switching mode SPD of built-in disconnector |
| CN108808644A (en) * | 2018-06-28 | 2018-11-13 | 西安交通大学 | Plural serial stage gap arrester for power electronic equipment lightning protection |
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| JP2012104598A (en) * | 2010-11-09 | 2012-05-31 | Otowa Denki Kogyo Kk | Spd with deterioration alarm function |
| CN102545196A (en) * | 2012-02-10 | 2012-07-04 | 杨国华 | Multilayer discharge gap type surge protection device |
| CN202940588U (en) * | 2012-11-07 | 2013-05-15 | 河南维能防护科技有限公司 | Lightning protection device for coal mine wellhead entry communication cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101090197A (en) * | 2007-04-29 | 2007-12-19 | 四川中光防雷科技有限责任公司 | High efficient laminated graphic discharge gap device |
| CN201413989Y (en) * | 2009-06-18 | 2010-02-24 | 成都兴业雷安电子有限公司 | Matrix form high power air release module |
| CN201417942Y (en) * | 2009-06-18 | 2010-03-03 | 成都兴业雷安电子有限公司 | Matrix pressure-sensitive surge protection module |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565850A (en) * | 2018-05-21 | 2018-09-21 | 西安交通大学 | The concatenated lightning protection device of multistage gap |
| CN108565850B (en) * | 2018-05-21 | 2019-08-13 | 西安交通大学 | The concatenated lightning protection device of multistage gap |
| CN108808644A (en) * | 2018-06-28 | 2018-11-13 | 西安交通大学 | Plural serial stage gap arrester for power electronic equipment lightning protection |
| CN108808644B (en) * | 2018-06-28 | 2019-08-13 | 西安交通大学 | Plural serial stage gap arrester for power electronic equipment lightning protection |
| CN108711836A (en) * | 2018-07-02 | 2018-10-26 | 李红斌 | A kind of switching mode SPD of built-in disconnector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105610140B (en) | 2018-08-17 |
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