CN1400699A - Variable lightning protector - Google Patents
Variable lightning protector Download PDFInfo
- Publication number
- CN1400699A CN1400699A CN 01122983 CN01122983A CN1400699A CN 1400699 A CN1400699 A CN 1400699A CN 01122983 CN01122983 CN 01122983 CN 01122983 A CN01122983 A CN 01122983A CN 1400699 A CN1400699 A CN 1400699A
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- thunder
- lightning arrester
- thunder body
- lightning
- putting
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- Thermistors And Varistors (AREA)
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Abstract
This invention relates to a variable lightning arrester mainly using two one-way lightning devices and several two-way lightning devices, insulation support sleeve, anode binding post, earth binding post and a shell. A second step lightning arrester formed by only two-way lightning device is called low voltage lightning arrester and multi-step lightning arrester with two or more two-way lightning devices is called high voltage lightning arrester. It's more durable since heat is transferred by air.
Description
The present invention system belongs to a kind of lightning arrester of installing and using on the circuit of different voltage different frequencies, be variable lightning protector.
The lightning arrester of installing and using on high-tension line at present is carborundum lightning arrester and zinc oxide arrester.Reflect that according to the user these two kinds of lightning arresters are not durable, behind logical 1 twice thunder and lightning, it will break, scrap, and transformer has and then just burnt.After deliberation, I find zinc oxide arrester, and why short-life reason is owing to it is a resistance-type, and its temperature rises very high formerly behind the logical thunder and lightning.The resistance of a ZnO resistors device is between 30K Ω-60k Ω, establishes it and is 40k Ω, and a lightning arrester is connected last 8, and its total resistance is 3.2 * 10
5Ω.The electric current that records big thunder and lightning according to the various countries expert is about about 1000A, and thunder and lightning is 0.4 second by the time of lightning arrester.According to Joule law, Q=I
2RT=1 * 10
3A * 3.2 * 10
5Ω * 0.4 second=1.28 * 10
11Joule ≈ 3 * 10
7Kilocalorie (=4.2 joules on 1 card).Is it much that this heat can make the temperature of lightning arrester be raised to? the quality of 8 ZnO resistors devices is 1.2 kilograms, establishes the specific heat of the specific heat of zinc oxide with dried earth, all be 0.2 kilocalorie/(kilogram ℃), establishing the original temperature of lightning arrester is 20 ℃.According to Q
Inhale=cm (t-t
o),
=1.25 * 108 ℃+20 ℃ (surpassing hundred million degree).Thunder and lightning by lightning arrester has only slight 10A exactly, and the temperature of lightning arrester also can be raised to 1270 ℃ from 20 ℃, and the short-life reason of zinc oxide arrester just is this.
The purpose of this invention is to provide and a kind ofly do impedance and transmit the material of heat, be applicable to the variable lightning protector that high low voltage circuit uses with air.
The object of the present invention is achieved like this: become the unidirectional thunder body of putting of extinct volcano shape with the copper billet punching out, as shown in Figure 1, (1) among the figure is the garden week of the angular of protuberance, this is to put Lei Feng, (2) be the heat extraction pore, (3) are base, are the places that the supporting mass insulating case supports.Gather into folds and just become a two-way thunder body of putting in the stratum back-to-back with two unidirectional thunder bodies of putting, as shown in Figure 2.Manufacture the insulation supporter cover with porcelain, as shown in Figure 3, its waist slot also is used for heat extraction gas.With two unidirectional thunder bodies of putting, the two-way thunder body of putting is installed as Fig. 4 with two insulating cases, has just become a low voltage surge arrester, and (1) among the figure, (2) are the unidirectional thunder body of putting, and (3) are the two-way thunder body of putting.(4), (5) be the heat extraction gas orifice, (6) are the anode terminal of lightning arrester, the connection circuit live wire, (7) are the earth polar binding post, earth connection.(8) be the lightning arrester shell, (9) are insulating supporting body (insulating case).The principle of assembling is, putting Lei Tiyu puts between the thunder body several mm distance will be arranged, this distance is decided by the length of insulating case, Fig. 4 is 2 grades of diagrams of putting the thunder lightning arrester, if install a plurality of two-way thunder bodies of putting in the middle of the lightning arrester, this lightning arrester just becomes the above high-voltage arrester of 6600V, as shown in Figure 5.Fig. 6 is the method step figure that the core of lightning arrester is installed.Ifs circuit be high frequency or circuit on thunder and lightning not very big, put Lei Tike and become tip-angled shape to put the thunder body with the copper coin punching out, to reduce the distributed capacitance of lightning arrester, reduce or stop the loss that penetrates of electric current on the circuit.
Thunderstorm hour on the anode strap of lightning arrester, by interacting, whole lightning arrester all has been with electricity, and is the same like a series battery, and the lightning energy of high pressure makes to be put the air ionization that Lei Tiyu puts between the thunder body thunder and lightning is imported the earth.It is external that the door [(10) in the accompanying drawing 5] that the red-hot gas that produces when putting thunder is left unlocked or unlatched by the hole of putting thunder body central authorities [(1) of accompanying drawing 1] and lightning arrester shell is discharged lightning arrester.
The characteristics of this lightning arrester are that to utilize air to take heat to lightning arrester external, simple in structure, durable, cost is low, repair easily.A few years ago, the computer of some unit, electric fan, television set, ammeter etc. are smashed by thunder and lightning, under their requirement; the designer installs variable lightning protector of the present invention on their low-voltage circuit; since then these several years, their electrical appliance safety, protection has been lived.
Below in conjunction with accompanying drawing 6 and embodiment the present invention is further specified.
Accompanying drawing 6 is the block diagram of the core of installation lightning arrester, and (1), (2) are the unidirectional thunder body of putting, and (3) are the two-way thunder body of putting, (4) be the insulation supporter cover, (5) are anode and ground pole plate, and (6) are anode terminal, (7) be the earth polar binding post, (8) are spring, and (9) are each component heat extraction pore.
Claims (4)
1, the invention belongs to a kind of lightning arrester of between circuitry lines, installing and using, its main core is by the tired nail of electrode, the unidirectional thunder body of putting, two-way thunder body and the insulation supporter cover put is installed in series and forms, it is characterized in that putting Lei Tihe puts between the thunder body and separates with insulating supporting body, make and put Lei Tiyu and put several mm distance are arranged between the thunder body, unidirectionally put thunder body and one two-way to put the lightning arrester that the thunder body is composed in series be low voltage surge arrester with two, unidirectionally put the thunder body and a plurality of two-way to put the lightning arrester that the thunder body forms be high-voltage arrester with two.
2, lightning arrester according to claim 1, its main element is the unidirectional thunder body of putting, be to be washed into extinct volcano shape with garden shape copper billet, or the element of recessed carnival hat shape, the garden Zhou Tiwei of the tip-angled shape that its protuberance comes is put Lei Feng, the bottom evener is divided into base, and the hole of central authorities is the heat extraction pore, and two unidirectional puts the thunder body and gather into folds back-to-back and just become the two-way thunder body of putting.
3, lightning arrester according to claim 1, its insulating supporting body are the elements that becomes the garden tubular with the porcelain made, and the decision of its height is put Lei Tiyu and put distance between the thunder body.
4, lightning arrester according to claim 1, the lightning arrester of the place usefulness that thunder and lightning is little, it is unidirectional puts the thunder body and the two-way thunder body of putting can be made into tip-angled shape or zigzag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01122983 CN1400699A (en) | 2001-07-28 | 2001-07-28 | Variable lightning protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01122983 CN1400699A (en) | 2001-07-28 | 2001-07-28 | Variable lightning protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1400699A true CN1400699A (en) | 2003-03-05 |
Family
ID=4664956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01122983 Withdrawn CN1400699A (en) | 2001-07-28 | 2001-07-28 | Variable lightning protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1400699A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687292A (en) * | 2017-10-18 | 2019-04-26 | 菲尼克斯电气公司 | Inflatable overvoltage arrester |
-
2001
- 2001-07-28 CN CN 01122983 patent/CN1400699A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687292A (en) * | 2017-10-18 | 2019-04-26 | 菲尼克斯电气公司 | Inflatable overvoltage arrester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |