CN201392702Y - Backup discharge current capacity arrester - Google Patents
Backup discharge current capacity arrester Download PDFInfo
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- CN201392702Y CN201392702Y CN200920054873U CN200920054873U CN201392702Y CN 201392702 Y CN201392702 Y CN 201392702Y CN 200920054873 U CN200920054873 U CN 200920054873U CN 200920054873 U CN200920054873 U CN 200920054873U CN 201392702 Y CN201392702 Y CN 201392702Y
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- piezo
- resistance
- discharge tube
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- varistors
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Abstract
The utility model relates to a backup discharge current capacity arrester, belonging to the field of lightning-proof protecting devices. The backup discharge current capacity arrester comprises a shell and a lightning-proof circuit arranged in the shell, wherein the lightning-proof circuit comprises a discharge tube and varistors; and the discharge tube is connected in series with a varistor, and then is connected in series with another varistor, thereby achieving a residual voltage generated by connection in series of the discharge tube and the varistors, and efficiently inhibiting vibration wave heads generated by the discharge tube and the varistors at the same time. The varistors are connected between a power supply phase line and a zero line; and fuses are connected in series at the front end of the varistors, are taken as a protective circuit, and are connected in parallel with a protective branch which is connected in series with the varistors between the phase line and the zero line and the discharge tube in a matching way. The fuses are connected in series to a series-connected branch of the varistors and the discharge tube, and are overcurrent fuses and temperature fuses. The utility model can efficiently clamp voltage wave heads, obtains lower voltage protection level, and can provide backup discharge current protection.
Description
Technical field
The utility model reserve discharge capacity lightning arrester belongs to anti-lightning protection equipment field, particularly relates to a kind of lightning arrester.
Background technology
Lightning protection to power circuit is of long duration for a long time, and a kind of is to adopt the sheet metal point discharge, and it has characteristics such as discharge capacity is big, durability is strong.A kind of is the silica lightning arrester, and it has characteristics such as low junction capacitance.A kind of is zinc oxide arrester, and it has the better voltage-current characteristic of ratio silicon oxide.Piezo-resistance mainly is applied in three-phase and the single phase poaer supply lightning arrester now, utilizes the structure of piezo-resistance discharged in series pipe, causes a very high concussion voltage wave, and piezo-resistance discharged in series tube reaction speed is slow.Utilize the structure of piezo-resistance parallel discharge pipe, behind the shunt capacitance, there is leakage current in electric capacity, and aging along with electric capacity, leakage current is short to be increased, and the increase of leakage current causes the electric capacity heating easily, to electric capacity is caught fire, form safety problem, and big leakage current can form certain idle work to electric power system, electric energy is caused certain waste.
There is following shortcoming in existing lightning arrester: the protection level is very high when 1, using piezo-resistance as protection device separately.2, the protection level reduced after the use piezo-resistance was connected with discharge tube, but produced very high resonance wave head.3, with electric capacity with after piezo-resistance and discharge tube are in parallel, electric capacity can suppress the resonance wave head and produce, but exist the electric capacity leakage current and with the side effect of inductive load generation resonance.
Summary of the invention
The purpose of this utility model is to avoid weak point of the prior art, and a kind of low residual voltage is provided, and reaction speed is fast, and the reserve discharge capacity lightning arrester of the through-flow protection of reserve is provided.
The purpose of this utility model reaches by following measure, it is made up of shell and setting lightning protection circuit in the enclosure, the lightning protection circuit setting in the enclosure, lightning protection circuit is by discharge tube, piezo-resistance constitutes, discharge tube series connection piezo-resistance, piezo-resistance in parallel again after the discharge tube series connection piezo-resistance, it has reached the residual voltage of discharge tube series connection piezo-resistance equally, also can effectively suppress the concussion wave head that they produced simultaneously.The branch road parallel connection that independent piezo-resistance and piezo-resistance are connected with discharge tube, when lightning current comes then, independent piezo-resistance reaction speed has only 25ns than very fast, voltage clamp below its protection level, is stoped the resonance wave head that produces slowly owing to the discharge channel reaction speed; After the time that lightning current arrives surpasses the time of piezo-resistance and discharge tube 105ns; the protection voltage ratio of piezo-resistance and discharge tube series connection is lower; energy all after the conducting are all transferred on the discharge channel of piezo-resistance and discharge tube, reach relatively low protection voltage.The independent piezo-resistance reaction time be 25ns ~ 105ns during this period of time, so the energy by piezo-resistance is very little, piezo-resistance soon main energy exchange on piezo-resistance and branch road that discharge tube is connected.Prove by a large amount of tests, when excessive lightning current damages the branch road of piezo-resistance and discharge tube, seldom can also damage independent piezo-resistance.So independent piezo-resistance is connected with discharge tube the back effect while of suppressing the resonance wave head except can be used as piezo-resistance, also can be used as the reserve through-flow channel of main discharge passage, and the effect that kills two birds with one stone is arranged.
Utility model is in parallel with the series arm of the discharge tube of 600V discharge voltage with the protection voltage piezo-resistance of the piezo-resistance of 620V protection voltage and 330V.
Utility model can connect fuse as protective circuit; form by shell and setting lightning protection circuit in the enclosure; lightning protection circuit is by discharge tube; piezo-resistance constitutes; discharge tube series connection piezo-resistance; piezo-resistance in parallel again after the discharge tube series connection piezo-resistance; zero line connects ground wire by a discharge tube; piezo-resistance is serially connected in Temperature protection and overcurrent fuse front end; phase line is connected with piezo-resistance and discharge tube between the zero line, and discharge tube is serially connected in Temperature protection and overcurrent fuse front end.
The utility model is during with the cut-in operation in parallel of three-phase four-wire system AC power, and by being in parallel with phase line of power, zero line, and zero line connects ground wire by a discharge tube.Article three, phase line is discharged to zero line when voltage is higher than normal working voltage by the mechanism of a discharge respectively, makes and forms the poor voltage protection of touching between phase line and the zero line.Insert discharge tube between zero line and ground wire, it mainly acts on and be to form the common mode protection between zero line and ground wire, phase line and ground wire.The differential mode that the mechanism of this reserve discharge capacity technology is mainly used between phase line and the zero line is protected.
The utility model piezo-resistance is connected between power supply phase line and the zero line, and fuse is serially connected in the piezo-resistance front end, and fuse is as protective circuit, simultaneously with phase line and zero line between piezo-resistance and the discharge tube protection branch road parallel connection of connecting work in coordination.Be connected in series fuse on piezo-resistance and discharge tube series arm, fuse is overcurrent fuse and Thermal Cutoffs.
The utility model can effectively be clamped down on the voltage wave head, obtains lower voltage protection level, can provide reserve through-flow protection.
Description of drawings
Accompanying drawing 1 is used for the structure chart of three-phase four-wire system AC power for the utility model.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1; the utility model is made up of shell and setting lightning protection circuit in the enclosure; lightning protection circuit is by discharge tube; piezo-resistance constitutes; discharge tube series connection piezo-resistance; piezo-resistance in parallel again after the discharge tube series connection piezo-resistance; during with the cut-in operation in parallel of three-phase four-wire system AC power; by with phase line of power; zero line is in parallel; zero line connects ground wire by a discharge tube; form a typical 3+1 protection form; article three, phase line is discharged to zero line when voltage is higher than normal working voltage by the mechanism of a discharge respectively; make to form between phase line and the zero line to differ from and touch voltage protection, insert discharge tube between zero line and ground wire, it mainly acts on and being at zero line and ground wire; form the common mode protection between phase line and the ground wire.Be connected the piezo-resistance R1 between power supply phase line N and the zero line L1, piezo-resistance R1 is serially connected in Temperature protection T1 and overcurrent fuse U1 front end.Phase line is connected with piezo-resistance R2 and discharge tube G1 between the zero line, and discharge tube is serially connected in Temperature protection T2 and overcurrent fuse U2 front end.Article two, the road parallel connection is worked in coordination.
Be connected the piezo-resistance R1 between power supply phase line and the zero line, be serially connected in the Temperature protection T1 of its front end and overcurrent fuse U1 as protective circuit, simultaneously with phase line and zero line between piezo-resistance R2 and the discharge tube G1 protection branch road parallel connection of connecting work in coordination, the Temperature protection T2 of serial connection and overcurrent fuse U2 are as protective circuit, between phase line and zero line, piezo-resistance is housed, the protection magnitude of voltage is 620V, because operate time is fast, so passage as limiting protecting voltage wave head, for security purpose, front end must connect Temperature protection T1 and overcurrent fuse U1 are as protective circuit; The piezo-resistance of 330V protection voltage in parallel and the discharge tube series arm of 600V discharge voltage between zero line and phase line; because the protection voltage levvl after its conducting is low; so use as the discharge main channel; equally for security purpose; front end must connect Temperature protection T2 and overcurrent fuse U2 are as protective circuit.
Claims (7)
1, a kind of reserve discharge capacity lightning arrester, be made up of shell and setting lightning protection circuit in the enclosure, lightning protection circuit is by discharge tube, and piezo-resistance constitutes, it is characterized in that discharge tube series connection piezo-resistance, piezo-resistance in parallel again after the discharge tube series connection piezo-resistance.
2, a kind of reserve discharge capacity lightning arrester, form by shell and setting lightning protection circuit in the enclosure, lightning protection circuit is by discharge tube, piezo-resistance constitutes, it is characterized in that discharge tube series connection piezo-resistance, piezo-resistance in parallel again after the discharge tube series connection piezo-resistance, zero line connects ground wire by a discharge tube, piezo-resistance is serially connected in Temperature protection and overcurrent fuse front end, phase line is connected with piezo-resistance and discharge tube between the zero line, and discharge tube is serially connected in Temperature protection and overcurrent fuse front end.
3, reserve discharge capacity lightning arrester according to claim 1 is characterized in that the protection voltage piezo-resistance of the piezo-resistance of 620V protection voltage and 330V is in parallel with the series arm of the discharge tube of 600V discharge voltage.
4, reserve discharge capacity lightning arrester according to claim 1 is characterized in that fuse is serially connected in the piezo-resistance front end.
5, reserve discharge capacity lightning arrester according to claim 1 is characterized in that being connected in series fuse on piezo-resistance and discharge tube series arm.
6, reserve discharge capacity lightning arrester according to claim 4 is characterized in that fuse is overcurrent fuse and Thermal Cutoffs.
7, reserve discharge capacity lightning arrester according to claim 5 is characterized in that fuse is overcurrent fuse and Thermal Cutoffs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920054873U CN201392702Y (en) | 2009-04-13 | 2009-04-13 | Backup discharge current capacity arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920054873U CN201392702Y (en) | 2009-04-13 | 2009-04-13 | Backup discharge current capacity arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201392702Y true CN201392702Y (en) | 2010-01-27 |
Family
ID=41599524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920054873U Expired - Fee Related CN201392702Y (en) | 2009-04-13 | 2009-04-13 | Backup discharge current capacity arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201392702Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055182A (en) * | 2010-12-07 | 2011-05-11 | 贵州永跃科技有限责任公司 | Lightening protector without ground wire |
| CN103703534A (en) * | 2011-05-11 | 2014-04-02 | 依斯克拉扎斯赛特公司 | Redundant excess voltage circuit breaker with rotational disk and with added electronic assembly intended to extend life span of excess-voltage component |
| CN104253426A (en) * | 2014-09-03 | 2014-12-31 | 烽火通信科技股份有限公司 | Lightning protection circuit and lightning protection method for direct-current power supply port of communication equipment |
| CN107947143A (en) * | 2018-01-04 | 2018-04-20 | 北京广荣防雷技术有限公司 | A kind of SPD back-up protection devices of new principle structure |
| CN109103866A (en) * | 2018-10-30 | 2018-12-28 | 成都铁达电子股份有限公司 | A kind of Surge Protector |
| CN110400666A (en) * | 2018-04-24 | 2019-11-01 | 成都铁达电子股份有限公司 | Combined press sensitive resistor |
-
2009
- 2009-04-13 CN CN200920054873U patent/CN201392702Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055182A (en) * | 2010-12-07 | 2011-05-11 | 贵州永跃科技有限责任公司 | Lightening protector without ground wire |
| CN102055182B (en) * | 2010-12-07 | 2013-08-07 | 张茗 | Lightening protector without ground wire |
| CN103703534A (en) * | 2011-05-11 | 2014-04-02 | 依斯克拉扎斯赛特公司 | Redundant excess voltage circuit breaker with rotational disk and with added electronic assembly intended to extend life span of excess-voltage component |
| CN103703534B (en) * | 2011-05-11 | 2016-11-23 | 依斯克拉扎斯赛特公司 | There is rotating disk and there is the redundancy overvoltage circuit chopper of extra Electronic Assemblies in life-span for extending overvoltage element |
| CN104253426A (en) * | 2014-09-03 | 2014-12-31 | 烽火通信科技股份有限公司 | Lightning protection circuit and lightning protection method for direct-current power supply port of communication equipment |
| CN107947143A (en) * | 2018-01-04 | 2018-04-20 | 北京广荣防雷技术有限公司 | A kind of SPD back-up protection devices of new principle structure |
| CN110400666A (en) * | 2018-04-24 | 2019-11-01 | 成都铁达电子股份有限公司 | Combined press sensitive resistor |
| CN110400666B (en) * | 2018-04-24 | 2021-07-20 | 成都铁达电子股份有限公司 | Combined voltage dependent resistor |
| CN109103866A (en) * | 2018-10-30 | 2018-12-28 | 成都铁达电子股份有限公司 | A kind of Surge Protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20160413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |