CN202712839U - Triple three-phase tandem type surge protective device - Google Patents
Triple three-phase tandem type surge protective device Download PDFInfo
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- CN202712839U CN202712839U CN 201220359658 CN201220359658U CN202712839U CN 202712839 U CN202712839 U CN 202712839U CN 201220359658 CN201220359658 CN 201220359658 CN 201220359658 U CN201220359658 U CN 201220359658U CN 202712839 U CN202712839 U CN 202712839U
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Abstract
The utility model discloses a triple three-phase tandem type surge protective device, which comprises six piezoresistors, six temperature protective tubes, two ceramic gas discharge tubes and four inductors, wherein the four inductors are respectively connected among the three phase line input ends and the three phase line output ends of a three-phase alternating-current power supply and between a zero line input end and a zero line output end in series; one piezoresistor and one temperature protective tube are connected in series to form a serial loop; a serial loop is respectively connected among the three phase line input ends and the zero line input end and among the three phase line output ends and the zero line output end; and a ceramic gas discharge tube is respectively connected between the zero line input end and a ground line and between the zero line output end and the ground line. According to the utility model, triple protection between the phase line and the zero line, between the phase line and the ground line, and between the zero line and the ground line of the input end and the output end of the three-phase alternating-current power supply is respectively carried out by adopting the piezoresistors, the temperature protective tubes and the ceramic gas discharge tubes, so that the purpose of ensuring safety operation of the three-phase alternating-current power supply is achieved.
Description
Technical field
The utility model relates to a kind of surge protector, relates in particular to a kind of triple three-phase series formula surge protector.
Background technology
Surge protector also is lightning protection device, is a kind of electronic installation that security protection is provided for various electronic equipments, instrument and meter, communication line.When in electric loop or the communication line because extraneous interference is when producing suddenly peak current or voltage, surge protector can conducting shunting within the extremely short time, thereby avoids surge to the infringement of other equipment in the loop.The single protective circuit of the many employings of existing three-phase electricity surge protector; as three piezo-resistances are connected to three-phase alternating-current supply mutually between zero, between the phase ground, between zero ground; or with three temperature safety tubes be connected to three-phase alternating-current supply mutually between zero, between the phase ground, between zero ground, reach the purpose of overvoltage, overcurrent protection.There is the shortcoming that protected mode is single, security performance is not high enough in the protective circuit of above-mentioned three-phase electricity surge protector.
Summary of the invention
The purpose of this utility model provides a kind of triple three-phase series formula surge protector with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises six piezo-resistances, six temperature safety tubes, two ceramic gas discharge tubes and four inductance, the first inductance is connected in series between the first phase line input and first-phase line output terminal of three-phase alternating-current supply, the second inductance is connected in series between the second phase line input and second-phase line output terminal of described three-phase alternating-current supply, the 3rd inductance is connected in series between the third phase line input and third phase line output terminal of described three-phase alternating-current supply, the 4th inductance is connected in series between the zero line input and zero line output of described single phase alternating current power supply, the first piezo-resistance be connected after the temperature safety tube series connection its two ends respectively with described the first phase line input be connected the zero line input and be connected, the second piezo-resistance be connected after the temperature safety tube series connection its two ends respectively with described the second phase line input be connected the zero line input and be connected, after the series connection of the 3rd piezo-resistance and the 3rd temperature safety tube its two ends respectively with described third phase line input be connected the zero line input and be connected, after the series connection of the 4th piezo-resistance and the 4th temperature safety tube its two ends respectively with described first-phase line output terminal be connected the zero line output and be connected, after the series connection of the 5th piezo-resistance and the 5th temperature safety tube its two ends respectively with described second-phase line output terminal be connected the zero line output and be connected, after the series connection of the 6th piezo-resistance and the 6th temperature safety tube its two ends respectively with described third phase line output terminal be connected the zero line output and be connected, be connected with the first ceramic gas discharge tube between described zero line input and the ground wire, be connected with the second ceramic gas discharge tube between described zero line output and the described ground wire.
The beneficial effects of the utility model are:
The utility model adopt piezo-resistance, temperature safety tube and ceramic gas discharge tube respectively to the input of three-phase alternating-current supply and output mutually between zero, between the phase ground, carry out triple protection between zero ground, reach the purpose of guaranteeing the three-phase alternating-current supply safe operation.
Description of drawings
Fig. 1 is electrical block diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model comprises six piezo-resistance RV1, RV2, RV3, RV4, RV5, RV6, six temperature safety tube TF1, TF2, TF3, TF4, TF5, TF6, two ceramic gas discharge tube G1, G2 and four inductance T1, T2, T3, T4, the first inductance T1 is connected in series between the first phase line input L1in and first-phase line output terminal L1out of three-phase alternating-current supply, the second inductance T2 is connected in series between the second phase line input L2in and second-phase line output terminal L2out of three-phase alternating-current supply, the 3rd inductance T3 is connected in series between the third phase line input L3in and third phase line output terminal L3out of three-phase alternating-current supply, the 4th inductance T4 is connected in series between the zero line input Nin and zero line output Nout of single phase alternating current power supply, the first piezo-resistance RV1 be connected that its two ends are connected with zero line input Nin with the first phase line input L1in respectively after the temperature safety tube TF1 series connection, the second piezo-resistance RV2 be connected that its two ends are connected with zero line input Nin with the second phase line input L2in respectively after the temperature safety tube TF2 series connection, the 3rd piezo-resistance RV3 is connected with zero line input Nin with third phase line input L3in respectively with rear its two ends of the 3rd temperature safety tube TF3 series connection, the 4th piezo-resistance RV4 is connected with zero line output Nout with first-phase line output terminal L1out respectively with rear its two ends of the 4th temperature safety tube TF4 series connection, the 5th piezo-resistance RV5 is connected with zero line output Nout with second-phase line output terminal L2out respectively with rear its two ends of the 5th temperature safety tube TF5 series connection, the 6th piezo-resistance RV6 is connected with zero line output Nout with third phase line output terminal L3out respectively with rear its two ends of the 6th temperature safety tube TF6 series connection, be connected with the first ceramic gas discharge tube G1 between zero line input Nin and the ground wire (unmarked among the figure), be connected with the second ceramic gas discharge tube G2 between zero line output Nout and the ground wire.
The pressure sensitive voltage value of above-mentioned piezo-resistance RV1, RV2, RV3, RV4, RV5, RV6 is selected as shown in the table:
| Rated voltage/fluctuation range | <10% | 10～15% | 15～20% | 20～30% | >30% |
| 110V～120V | 240V | 270V | 270V | 300V | 330V |
| 220V～240V | 470V | 510V | 560V | 620V | 680V |
| 380V～415V | 820V | 910V | 1000V | 1100V | 1500V |
The specification of said temperature protective tube TF1, TF2, TF3, TF4, TF5, TF6 is 130 ℃～135 ℃, 10A/250V.
The dc breakdown voltage of above-mentioned ceramic gas discharge tube G1, G2, G3, G4, G5, G6 is selected 470V～600V.
Above-mentioned inductance T1, T2, T3, T4 are air core inductor, inductance value 〉=20 μ H, and diameter of wire calculates according to load current.
Claims (1)
1. triple three-phase series formula surge protector; comprise six piezo-resistances; six temperature safety tubes; two ceramic gas discharge tubes and four inductance; the first inductance is connected in series between the first phase line input and first-phase line output terminal of three-phase alternating-current supply; the second inductance is connected in series between the second phase line input and second-phase line output terminal of described three-phase alternating-current supply; the 3rd inductance is connected in series between the third phase line input and third phase line output terminal of described three-phase alternating-current supply; the 4th inductance is connected in series between the zero line input and zero line output of described single phase alternating current power supply; the first piezo-resistance be connected after the temperature safety tube series connection its two ends respectively with described the first phase line input be connected the zero line input and be connected; the second piezo-resistance be connected after the temperature safety tube series connection its two ends respectively with described the second phase line input be connected the zero line input and be connected; after the series connection of the 3rd piezo-resistance and the 3rd temperature safety tube its two ends respectively with described third phase line input be connected the zero line input and be connected; after the series connection of the 4th piezo-resistance and the 4th temperature safety tube its two ends respectively with described first-phase line output terminal be connected the zero line output and be connected; after the series connection of the 5th piezo-resistance and the 5th temperature safety tube its two ends respectively with described second-phase line output terminal be connected the zero line output and be connected; after the series connection of the 6th piezo-resistance and the 6th temperature safety tube its two ends respectively with described third phase line output terminal be connected the zero line output and be connected; be connected with the first ceramic gas discharge tube between described zero line input and the ground wire, be connected with the second ceramic gas discharge tube between described zero line output and the described ground wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359658 CN202712839U (en) | 2012-07-24 | 2012-07-24 | Triple three-phase tandem type surge protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359658 CN202712839U (en) | 2012-07-24 | 2012-07-24 | Triple three-phase tandem type surge protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202712839U true CN202712839U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220359658 Expired - Fee Related CN202712839U (en) | 2012-07-24 | 2012-07-24 | Triple three-phase tandem type surge protective device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202712839U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2903113A1 (en) * | 2014-01-31 | 2015-08-05 | Beijing Tonlier Energy Technology Co., Ltd. | Surge protection circuit |
| CN107132801A (en) * | 2017-06-30 | 2017-09-05 | 南京信息工程大学 | A kind of remote switch device based on Arduino |
-
2012
- 2012-07-24 CN CN 201220359658 patent/CN202712839U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2903113A1 (en) * | 2014-01-31 | 2015-08-05 | Beijing Tonlier Energy Technology Co., Ltd. | Surge protection circuit |
| CN107132801A (en) * | 2017-06-30 | 2017-09-05 | 南京信息工程大学 | A kind of remote switch device based on Arduino |
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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: 20130130 Termination date: 20150724 |
|
| EXPY | Termination of patent right or utility model |