CN201789285U - Lightning protection device with earthing network pulse interference isolation technology - Google Patents
Lightning protection device with earthing network pulse interference isolation technology Download PDFInfo
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- CN201789285U CN201789285U CN2010202959693U CN201020295969U CN201789285U CN 201789285 U CN201789285 U CN 201789285U CN 2010202959693 U CN2010202959693 U CN 2010202959693U CN 201020295969 U CN201020295969 U CN 201020295969U CN 201789285 U CN201789285 U CN 201789285U
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Abstract
The utility model provides a lightning protection device with an earthing network pulse interference isolation technology, and mainly solves the problem that lightning protection and equipment thereof of an automatic system in the fields such as petroleum and petrochemical, industries, railways, electric power, and the like are easy to be interfered by earthing network pulse because of the connection to the lightning protection device. The technical scheme adopted by the utility model is that a lightning surge bleeding module, a lightning surge frequency suppressing module and a bidirectional transient suppression pressure-stabilizing module are connected in sequence, and then the lightning surge bleeding module and the bidirectional transient suppression pressure-stabilizing module are connected to the ground through an earthing network pulse interference isolating module. The lightning protection device adopts a two-port lightning design, and the earthing network pulse interference isolating module are connected to the ground on the basis of the design, thereby finally achieving the purposes of lightning protection and earthing network pulse interference isolation, solving the problem that the conventional automatic system is easy to be influenced by earthing network pulse interference after being connected to the lightning protection device, achieving effective lightning protection, and guaranteeing the normal operation of equipment.
Description
Technical field
The utility model relates to the lightning protection of the automated system equipment in fields such as petroleum and petrochemical industry, industry, railway and electric power, especially relates to a kind of lightning protection device that has earth mat impulse disturbances isolation technology.
Background technology
Since the reform and opening-up along with the sustainable development of national economy, the automated system in fields such as petroleum and petrochemical industry, industry, railway and electric power constantly to diversification, complicated, the direction evolution that maximizes, become more meticulous, be used widely by various electronic equipments and microelectronic device.But because this type of equipment work voltage is low, the withstand voltage level is low, and the sensitiveness height, to do interference performance poor, thereby very easily is subjected to the harm of thunder and lightning surge, and along with the development of automated system, this class problem is serious day by day.Annual all can directly or indirectly cause huge economy or unknown losses, light then cause the damage of its instrument, the heavy production line that then causes to occur seriously paralysing or great casualties.In recent years, along with people improve constantly and pay attention to the understanding of thunder and lightning disaster, people only paid attention to taking precautions against direct lightning strike from the past, were transformed into to pay close attention to more and put into when taking into account the strick precaution direct lightning strike how effectively to take precautions against on the problem of induction thunder.Increasing lightning protection producer researches and develops the automated system lightning protection device of having released anti-induction thunder of all kinds voluntarily and widely applies in the various automated systems.Along with being extensive use of and development of this type of lightning protection device, the lightning protection effect of automated system lightning protection device has reached the requirement of present automated system, but has thereupon occurred new problem again.The maximum problem of puzzlement automated system lightning protection device exploitation is exactly how about to eliminate the earth mat impulse disturbances of lightning protection device at present, guarantees not influence the normal operation of protected system.Present automated system lightning protection device, often protected system works is normal when the unearthed line of lightning protection device, thereby irregularly can occur after the ground connection causing the abnormal situation of system to take place because of the earth mat impulse disturbances enters into circuit through lightning protection device.Therefore be badly in need of a kind of lightning protection device that has earth mat impulse disturbances isolation technology and become pressing for for automated system lightning protection industry development.
The utility model content
The purpose of this utility model provides a kind of lightning protection device with earth mat impulse disturbances isolation technology, can effectively solve the lightning protection of automated system in fields such as petroleum and petrochemical industry, industry, railway and electric power and its equipment because of inserting the problem that lightning protection device is subjected to the earth mat impulse disturbances easily.
The technical scheme that the utility model is taked:
The utility model comprises the thunder and lightning surge module of releasing, and the thunder and lightning surge suppresses module frequently, and two-way transient state suppressing Voltage stabilizing module is isolated earth mat impulse disturbances module.With the thunder and lightning surge module 1 of releasing, the thunder and lightning surge suppresses module 2 frequently, and two-way transient state suppressing Voltage stabilizing module 3 is linked in sequence, and the module 1 of again the thunder and lightning surge being released, two-way transient state suppressing Voltage stabilizing module 3 connect over the ground by isolating earth mat impulse disturbances module 4.
Characteristics of the present utility model and advantage:
The utility model is a kind of lightning protection device that has earth mat impulse disturbances isolation technology, two ripe port lightning Protection Design have been adopted, and insert one on this basis over the ground and isolate earth mat impulse disturbances module, finally reach the purpose of lightning protection and isolation earth mat impulse disturbances, the automated system that has promptly solved in the fields such as present petroleum and petrochemical industry, industry, railway and electric power can realize effective lightning protection again because of inserting the problem that influenced by the earth mat impulse disturbances behind the lightning protection device, and the effect that the double isolation of lightning protection earth mat jamming techniques of pulse is united two into one is more perfect.
Description of drawings
Fig. 1 is a single channel schematic diagram of the present utility model.
Embodiment
Principle of the present utility model as shown in Figure 1, a is the input of lightning protection device protected circuit, b is the output of lightning protection device protected circuit, c is the input of lightning protection device shielded line, d is the output of lightning protection device shielded line.With the thunder and lightning surge module 1 of releasing, the thunder and lightning surge suppresses module 2 frequently, and two-way transient state suppressing Voltage stabilizing module 3 is linked in sequence, and the module 1 of again the thunder and lightning surge being released, two-way transient state suppressing Voltage stabilizing module 3 connect over the ground by isolating earth mat impulse disturbances module 4.
When occurring the thunder and lightning surge on the signal line; the thunder and lightning surge enters from a end; before this by release module 1 and isolate earth mat impulse disturbances module 4 and release of thunder and lightning surge into ground; suppress 2 pairs of thunder and lightning surges of module by the thunder and lightning surge then and effectively suppress, that adopts 3 pairs of circuits of bi-directional voltage stabilizing module again carries out the voltage clamp voltage-stabilizing protection.When occurring the thunder and lightning surge on the shielded line, when the thunder and lightning surge enters from the c end, release into ground by isolating earth mat impulse disturbances module 4.Net impulse disturbances module 4 is not high state isolator when circuit has the thunder and lightning surge, isolates the earth mat pulse and enters into circuit by lightning protection device and go to influence system and normally move.
After rush of current, voltge surge and disturbed test test,
Determine: the thunder and lightning surge suppresses the magnetic flux 〉=3uH of module 2.
Determine: the solar panel output voltage peak value of direct current turn-on voltage 〉=1.2 of two-way transient state suppressing Voltage stabilizing module 3 times.
Determine: isolate earth mat impulse disturbances module 4 and adopt gas discharge tube as isolating device, the direct current conducting voltage 〉=350V of gas discharge tube, the nominal discharge current of gas discharge tube 〉=thunder and lightning surge leaks into module 1 nominal discharge current value.
Claims (4)
1. lightning protection device with earth mat impulse disturbances isolation technology, comprise the thunder and lightning surge module (1) of releasing, the thunder and lightning surge suppresses module (2), two-way transient state suppressing Voltage stabilizing module (3), isolate earth mat impulse disturbances module (4), it is characterized in that: the thunder and lightning surge is released, and module (1), thunder and lightning surge suppress module (2), two-way transient state suppressing Voltage stabilizing module (3) is linked in sequence, and the module (1) of again the thunder and lightning surge being released, two-way transient state suppressing Voltage stabilizing module (3) connect over the ground by isolating earth mat impulse disturbances module (4).
2. a kind of lightning protection device that has earth mat impulse disturbances isolation technology according to claim 1 is characterized in that: the thunder and lightning surge suppresses the magnetic flux 〉=3uH of module (2).
3. a kind of lightning protection device that has earth mat impulse disturbances isolation technology according to claim 1 is characterized in that: the voltage peak of the protected equipment of direct current turn-on voltage 〉=1.2 of two-way transient state suppressing Voltage stabilizing module (3) times.
4. a kind of lightning protection device that has earth mat impulse disturbances isolation technology according to claim 1, it is characterized in that: isolate earth mat impulse disturbances module (4) and adopt gas discharge tube as isolating device, direct current conducting voltage 〉=the 350V of gas discharge tube, the nominal discharge current of gas discharge tube 〉=thunder and lightning surge leaks into the nominal discharge current value of module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202959693U CN201789285U (en) | 2010-08-18 | 2010-08-18 | Lightning protection device with earthing network pulse interference isolation technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202959693U CN201789285U (en) | 2010-08-18 | 2010-08-18 | Lightning protection device with earthing network pulse interference isolation technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201789285U true CN201789285U (en) | 2011-04-06 |
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ID=43821235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202959693U Expired - Lifetime CN201789285U (en) | 2010-08-18 | 2010-08-18 | Lightning protection device with earthing network pulse interference isolation technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201789285U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510185A (en) * | 2018-12-07 | 2019-03-22 | 北京世纪瑞尔技术股份有限公司 | A kind of signal isolating device of anti-electric railway traction reflux interference |
| CN110581375A (en) * | 2019-10-18 | 2019-12-17 | 成都中航信虹科技股份有限公司 | Direct current interference current drainage device and system |
-
2010
- 2010-08-18 CN CN2010202959693U patent/CN201789285U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510185A (en) * | 2018-12-07 | 2019-03-22 | 北京世纪瑞尔技术股份有限公司 | A kind of signal isolating device of anti-electric railway traction reflux interference |
| CN110581375A (en) * | 2019-10-18 | 2019-12-17 | 成都中航信虹科技股份有限公司 | Direct current interference current drainage device and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110406 |
|
| CX01 | Expiry of patent term |