CN1300908C - Lightning protection of electric installation and detection device of lightning strikes - Google Patents
Lightning protection of electric installation and detection device of lightning strikes Download PDFInfo
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- CN1300908C CN1300908C CNB021018499A CN02101849A CN1300908C CN 1300908 C CN1300908 C CN 1300908C CN B021018499 A CNB021018499 A CN B021018499A CN 02101849 A CN02101849 A CN 02101849A CN 1300908 C CN1300908 C CN 1300908C
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- electric installation
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- lightning protection
- power switch
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- 238000009434 installation Methods 0.000 title claims description 37
- 238000001514 detection method Methods 0.000 title 1
- 239000003990 capacitor Substances 0.000 claims abstract description 24
- 230000000694 effects Effects 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 5
- 230000006698 induction Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The present invention provides a lightning protection device and a lightning strike detecting device of electric devices. The lightning protection device comprises more than two capacitors and a grounding body, wherein the capacitors are respectively connected to an electric device or the output side of a main power switch of the electric device; the grounding body is connected with the other end of the capacitors. The lightning strike detecting device comprises a measuring scale, a display unit and a line unit, wherein the measuring scale is connected with the electric device or the output side of the main power switch of the electric device; the display unit is connected with the measuring scale; the line unit is connected between the measuring scale and the display unit.
Description
(1) technical field
The present invention relates to a kind of lightning protection device, particularly relate to a kind of kill lightning protection device of electric installation of the condition of a disaster of thunder that reduces.
(2) background technology
In recent years, be subjected to the earth atmosphere variable effect, the high-octane atmospheric electrical phenomena frequency of generation is heightened, relatively, also threaten tellurian resident, building etc., after the high electric current of thunder and lightning generation enters electric installation, will threaten staff's life security, especially at that time there were the personnel that touch electric installation all can be seriously influenced, in addition, also can destroy conduction, the good electric equipments of magnetic conductivity such as electronics, computer, when serious, supply transformer also can produce the situation of blast, encourages spreading of the on-the-spot intensity of a fire of catastrophe.
Therefore, the transformer room in the electric substation of general power plant or Utilities Electric Co. or factory, building itself all is equiped with lightning rod 1, so killing, thunder can directly not undermine aforementioned electric installation, and the thunder infringement of killing is mostly beaten out of doors on electric power pylon or the transmission pole, again the extra-high pressure of killing by transmission line introducing thunder.
As shown in Figure 1, general power factor (PF) complementary capacitance apparatus, be to be installed on the total power switch 21 of an electric installation, described total power switch 21 can be a knife switch or no-fuse switch (NFB), described device mainly connects (or Y connect also can) with three capacitors 22 with △ as shown in the figure at described total power switch 21 outlet sides, as shown in Figure 1, when an electric power pylon, an electric substation or a transmission pole are subjected to thunder and kill, the thunder superenergy that is produced of killing not only can destroy aforesaid transmission facility, and the grounded circuit of indefinite meeting through the where the earth the inside of releasing.
Again in conjunction with Fig. 2 explanation, as shown in Figure 2, when described electric installation is played any point and is subjected to thunder and kills the high-tension pulse wave impact that produces by outside line, will be without capacitor 22, make the outlet side of described total power switch 21 form the surprising high-voltage pulse situation that is full of, must punch the electric equipment in the electric installation, the loss the condition of a disaster is enlarged, and because of the energy size that atmospheric electrical phenomena is derived can't be estimated, so, when a high-tension pulse intensity of wave during much larger than maximum that electric installation can bear, the electric current that its moment (approximate number microsecond) flows into huge amount not only destroys described facility, and makes the partly interior electric equipment of electric current inflow electric installation, lead to fire, equipment wrecks, even the serious the condition of a disaster that has personnel to lose one's life.
(3) summary of the invention
The object of the present invention is to provide a kind of lightning protection device, be meant a kind of superenergy of being produced of thunder can being killed the earth the inside of releasing fully especially, with the lightning protection device of the electric installation that reduces the thunder calamity.Lightning protection device according to a kind of electric installation provided by the present invention, it is connected on the total power switch of electric installation or electric installation, described lightning protection device includes two above capacitors and an earth electrode, and described capacitor is connected respectively to the total power switch outlet side of described electric installation or electric installation; The end in addition of described earth electrode one end and above-mentioned capacitor interconnects, end is embedded in the earth in addition, the high-energy that thunder is killed the produced the earth the inside of directly releasing, be characterized in also comprising: the corresponding lead that is connected between described electric installation and the described capacitor more than two, one end of described lead is the feeder ear that is connected on the described total power switch outlet side, and the other end is the control end that is connected on the described capacitor.
Effect of the present invention:
The lightning protection device of electric installation of the present invention can not be subjected to about factor institutes such as weather, geology, environment; the thunder calamity can be close to the road grounding resistance be reduced to not before the installing more than several hundred million times (general resistance is for infinitely great); the high-energy that allows thunder kill to produce is released in the earth fully, can obtain excellent protection effect.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
(4) description of drawings
Fig. 1 is that one of general power factor (PF) complementary capacitance apparatus uses plane graph.
Fig. 2 is the voltage oscillogram that thunder is killed and produced at that time.
Fig. 3 is that plane graph is used in one of first preferred embodiment of the present invention.
Fig. 4 is a stereo appearance figure of described preferred embodiment.
Fig. 5 is that plane graph is used in one of described preferred embodiment.
Fig. 6 is a kill top view of checkout gear of the thunder of described preferred embodiment.
Fig. 7 is a circuit diagram of the lightning protection device grounded circuit of described preferred embodiment.
Fig. 8 is a voltage oscillogram that killed by thunder behind installing the present invention.
(5) embodiment
As Fig. 3, shown in 4, one preferred embodiment of the lightning protection device of electric installation of the present invention, be to be connected on the total power switch 31 of electric installation 3 or electric installation 3, described total power switch 31 can be a knife switch or a no-fuse switch (NFB) or any switch, the lightning protection device of described electric installation includes the lead 4 that is connected described total power switch 31 outlet sides 311 more than two, the corresponding capacitor 5 that is connected on the aforementioned wire 4 more than two, reach one and be connected described capacitor 5 earth electrode 6 of end in addition, be to adopt three Y wiring capacitance devices 5 to form to link in this example, and make the inductance induction reactance in loop or resistive impedance reduce to extremely low situation with described earth electrode 6.
As shown in Figure 4, described lead 4 is to adopt the wire rod that length is short, the line footpath is thick at present embodiment, to reduce the impedance of lead 4 itself, one end of described lead 4 is the feeder ear 41 that is connected on described total power switch 31 outlet sides 311, the other end is a control end 42, what deserves to be mentioned is, if when needing the long wire rod of length, can adopt the metal copper plate of proper volume size, reach the effect that reduces impedance.
Described capacitor 5 is to be connected on the control end 42 of described lead 4, and as shown in Figure 4, and the present invention also comprises one for the fixed substrate 7 on it of three capacitors 5 (is example with the three-phase).
Described earth electrode 6 is to adopt good metal material such as a kind of conductivity such as for example copper or galvanized iron etc. to make in the present embodiment, be illustrated in figure 4 as a grounding plate, as shown in Figure 3, described grounding plate is held in addition to be connected and to form Y with above-mentioned capacitor 5 and is connected, no matter thunder is killed superenergy that moment produces can be by the described earth electrode 6 the earth the inside of directly releasing through arbitrary enter mutually all, avoid the electric equipment in the part electric current inflow electric installation 3, device damage even fire take place in case shut out, and guarantee the safety of personnel's equipment.
As Fig. 5, shown in 6, the thunder of the electric installation of the present invention checkout gear 8 of killing, include a meter 81 that is connected on the total power switch 31 of described electric installation 3 or electric installation 3, one can show the kill display unit 82 of moment voltage to earth of thunder, an and line unit 83 that is connected between described meter 81 and the described display unit 82, described meter 81 i.e. an earth resistance meter, its panel scale is for beatting up the A.C. voltmeter of nurse (Ω) value, described display unit 82 has a digital voltage storage display circuit 821 and a stage signal lamp display circuit 822, described line unit 83 have one connect described electric installation 3 total power switch 31 outlet sides 311 than pressure type circuit (PT) or comparison type circuit (CT), one connects described rectifier 831 than pressure type circuit or comparison type circuit, one connects described rectifier 831 and can prevent the diode 832 of reverse circulation, and one can make described display unit 82 recover not receive the reset button 833 (Reset) of the initial condition of testing result; Can be for measuring and demonstrate the kill impulse current value of moment of thunder by described comparison type circuit, and describedly can make the function of lightning protection device of the present invention be shown confirmation for measuring the kill surge voltage value of moment of thunder than pressure type circuit; In addition, at ordinary times, described meter 81 can be amplified demonstration from the micro-voltage of earth electrode 6 of the present invention, and by calculating the cooperation graduation apparatus, allow the user obtain the size of grounding resistance at any time, what deserves to be mentioned is, can on graduation apparatus, be provided with the warning marker district, the arrange in pairs or groups dangerous cresset district of described signal lamp display circuit 822 planning all can allow the easier grasp lightning protection capability of user.
As shown in Figure 7, technical is that the antiground resistance value is low inadequately, the high-octane grounded circuit 9 of only thunder of releasing of the present invention need being killed carries out the work that reactance is adjusted, allow the inductance induction reactance between resistive impedance, inductance induction reactance or capacitor 4 capacitive reactances and the loop of lead 4 of grounded circuit 9 reduce, the large-scale grounding plate of arranging in pairs or groups has lower grounding resistance, relatively, when the volume of grounding plate more little, its grounding resistance also can increase further, according to the defencive function of user's needs, carry out adjustment work again; What deserves to be mentioned is, the ground connection effect can determine the resistance value and lightning protection capacitor 5 capacity of required design according to the actual power scale, it comprises withstand voltage and capacitance, for example: the high voltage power distribution major part of Taiwan Power Company is 11.4KV, become 220V low pressure by the high-tension transformer step-down again, installing one has the lightning protection device of the capacitor 5 of the above withstand voltage of several 11.4KV on the transmission line of the input side of high-tension transformer, the superenergy that can make thunder kill and produce, directly be close to the road to the earth the inside, take place to avoid the thunder calamity.
In addition, when described capacitor 4 is interconnected with grounding plate, has into phase current generation, but can not bring the energy loss situation, and the effect of helpful power factor compensation.
What deserves to be mentioned is; the present invention can not be subjected to weather; geology; about factors such as environment institute; the thunder calamity can be close to the road grounding resistance be reduced to not before the installing more than several hundred million times (general resistance is for infinitely great); the high-energy that allows thunder kill to produce is released in the earth fully; and show through the experiment sampled data; know that lightning protection device of the present invention can obtain excellent protection effect; as shown in Figure 8; after electric installation 3 uses lightning protection device of the present invention; almost completely eliminate the impact of high pressure pulse wave; be different from situation as shown in Figure 2, more highlight value on the industry of the present invention.
Shown in Fig. 5,6, the thunder of the electric installation of the present invention checkout gear 8 of killing also can use separately on the outlet side 311 of the total power switch 31 of described electric installation 3, by the thunder checkout gear 8 easier grasp thunders transient voltage when decreasing of killing.
Certainly, those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.
Claims (1)
1. the lightning protection device of an electric installation, it is connected on the total power switch of electric installation or electric installation, include two above capacitors and an earth electrode, described capacitor is connected respectively to the total power switch outlet side of described electric installation or electric installation; Described earth electrode, an end and above-mentioned capacitor end in addition interconnect, and end is embedded in the earth in addition, it is characterized in that also comprising:
The corresponding lead that is connected between described electric installation and the described capacitor more than two, an end of described lead is the feeder ear that is connected on the described total power switch outlet side, the other end is the control end that is connected on the described capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021018499A CN1300908C (en) | 2002-01-08 | 2002-01-08 | Lightning protection of electric installation and detection device of lightning strikes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021018499A CN1300908C (en) | 2002-01-08 | 2002-01-08 | Lightning protection of electric installation and detection device of lightning strikes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1431748A CN1431748A (en) | 2003-07-23 |
| CN1300908C true CN1300908C (en) | 2007-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021018499A Expired - Fee Related CN1300908C (en) | 2002-01-08 | 2002-01-08 | Lightning protection of electric installation and detection device of lightning strikes |
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| Country | Link |
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| CN (1) | CN1300908C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103108455B (en) * | 2013-01-16 | 2016-09-14 | 佛山市华全电气照明有限公司 | A kind of driving control circuit preventing LED light source high pressure broken by lightning |
| WO2015149210A1 (en) * | 2014-03-31 | 2015-10-08 | 东莞高仪电子科技有限公司 | Led lamp panel, high-voltage pulse protection circuit of led lamp panel and led lamp |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2039073U (en) * | 1988-10-13 | 1989-06-07 | 刘行俊 | T.v. receiver protector |
| CN2094129U (en) * | 1991-06-16 | 1992-01-22 | 王东生 | Arrester for electric transmission line |
| CN2166553Y (en) * | 1993-05-14 | 1994-05-25 | 拱北海关技术处 | Arrester tester |
-
2002
- 2002-01-08 CN CNB021018499A patent/CN1300908C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2039073U (en) * | 1988-10-13 | 1989-06-07 | 刘行俊 | T.v. receiver protector |
| CN2094129U (en) * | 1991-06-16 | 1992-01-22 | 王东生 | Arrester for electric transmission line |
| CN2166553Y (en) * | 1993-05-14 | 1994-05-25 | 拱北海关技术处 | Arrester tester |
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| Publication number | Publication date |
|---|---|
| CN1431748A (en) | 2003-07-23 |
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Owner name: LUO YUELIANG Free format text: FORMER OWNER: HU LONGJIANG Effective date: 20100122 |
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Effective date of registration: 20100122 Address after: China Yanping Taiwan Dounan town Yunlin County Road 3 Lane 167 No. 190 Patentee after: Luo Yueliang Address before: Wujih Township in Taichung County in Taiwan province Guangming Road No. 12 Lane 162 Patentee before: Hu Longjiang |
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Granted publication date: 20070214 Termination date: 20120108 |