CN202633928U - Lightning protection power secondary system - Google Patents
Lightning protection power secondary system Download PDFInfo
- Publication number
- CN202633928U CN202633928U CN 201220141857 CN201220141857U CN202633928U CN 202633928 U CN202633928 U CN 202633928U CN 201220141857 CN201220141857 CN 201220141857 CN 201220141857 U CN201220141857 U CN 201220141857U CN 202633928 U CN202633928 U CN 202633928U
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- lightning protection
- electric power
- driving module
- lightning
- secondary system
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Abstract
The utility model relates to a power system protection technology and particularly discloses a lightning protection power secondary system, which comprises a load served as secondary equipment. A power supply driving module is arranged between the load and a power supply device served as primary equipment. The lightning protection power secondary system also comprises two stages of lightning protection circuits, wherein a first-stage lightning protection circuit is connected between the input end and the lightning-proof grounding end of the power supply driving module and a second-stage lightning protection circuit is connected between the output end and the lightning-proof grounding end of the power supply driving module. Due to the arrangement of the two stages of lightning protection circuits, most of the lightning current is released through the first-stage lightning protection circuit arranged at the input end of the power supply driving module. Meanwhile, the residual voltage applied across the load is reduced through the second-stage lightning protection circuit arranged at the output end of the power supply driving module. Thus, the load is prevented from suffering the lightning strike and the safety of the load is improved. The service life of the load is therefore prolonged.
Description
Technical field
The utility model relates to the protecting electrical power system technology, relates in particular to a kind of electric power secondary system of lightning protection.
Background technology
Along with developing rapidly of electric utility, the capacity of electric power system is increasing.In order to work and security needs, electric power system and electric equipment thereof must adopt various safeguard measures.Lightning protection promptly is a kind of routine techniques, and main purpose is to avoid the harm of thunder and lightning, and it is through putting thunder resisting equipments such as lightning rod, lightning conducter and lightning arrester, and with corresponding earthing device lightning current is introduced the earth, improves the fail safe of system thus.
In the existing electric power secondary system, the one-level lightning protection circuit only is set.When lightning current is too powerful, have the fraction lightning current and enter into load, cause loading on the thunder-strike current residual voltage thus and impact damage down, this just makes that security of system is poor, has shortened its useful life widely.
The utility model content
In view of this, the utility model purpose is to provide a kind of electric power secondary system of lightning protection, can improve the security reliability of system.
For solving above technical problem; The technical scheme that the utility model provides is: a kind of electric power secondary system of lightning protection; Comprise load as secondary device; Be provided with electric power driving module between it and the electric supply installation as primary equipment, and be provided with the two-stage lightning protection circuit, wherein: first lightning protection circuit is connected between the input and lightning protection end of said electric power driving module; Second lightning protection circuit is connected between the output and lightning protection end of said electric power driving module.
More excellent ground, said first lightning protection circuit is a kind of closed spark gap.
More excellent ground, said first lightning protection circuit is first earth resistance.
More excellent ground, said first earth resistance is for being Zinc-oxide piezoresistor.
More excellent ground, said second lightning protection circuit is a discharge tube.
More excellent ground, said second lightning protection circuit is second earth resistance.
More excellent ground, said second earth resistance is for being Zinc-oxide piezoresistor.
More excellent ground, said electric supply installation is an AC power supply device.
More excellent ground, said electric power driving module is the AC-DC power supply driver module.
Between said electric supply installation and the said electric power driving module, all be connected between said electric power driving module and the said load through shielded type cable.
Compared with prior art, the electric power secondary system of the utility model lightning protection is provided with the secondary lightning protection, and most of thunder-strike current is wherein released through first lightning protection circuit of electric power driving module input; And the electric power driving module output is provided with second level lightning protection circuit, makes that the residual voltage that gets into load is littler, helps preventing that load is struck by lightning, and improves its safety in utilization, prolongs its useful life.
Description of drawings
Fig. 1 is the circuit diagram of the electric power secondary system of the utility model lightning protection.
Embodiment
The core concept of the electric power secondary system of the utility model lightning protection is; Be provided with the secondary lightning protection circuit, they are connected to the input and the output of electric power driving module respectively, prevent that thus load is struck by lightning; Improve its safety in utilization, prolong its useful life.
In order to make those skilled in the art understand the technical scheme of the utility model better, the utility model is done further to specify below in conjunction with accompanying drawing and specific embodiment.
Referring to Fig. 1, the preferred embodiment of the electric power secondary system of expression the utility model lightning protection.This electric power secondary system comprises the load 3 as secondary device; Be provided with electric power driving module 2 between it and the electric supply installation 1 as primary equipment; Wherein between electric supply installation 1 and the electric power driving module 2, all be connected through shielded type cable between electric power driving module 2 and the load 3, this shielded type cable is connected to lightning protection circuit, so that lightning current is introduced the earth; Improve the fail safe of system thus
Described lightning protection circuit is a secondary, and wherein: first lightning protection circuit 4 is connected between the input and lightning protection end of electric power driving module 2; Second lightning protection circuit 5 is connected between the output and lightning protection end of electric power driving module 2.This just can make most of thunder-strike current release through first lightning protection circuit 4 of electric power driving module 2 inputs; The second level lightning protection circuit 5 of electric power driving module 2 output settings can make that then the residual voltage that gets into load is littler; Thereby help preventing that load is struck by lightning; Improve its safety in utilization, prolong its useful life.
In the present embodiment, first order lightning protection circuit 4 is the closed spark gap, has big discharging current, and lightning current 20KA can release; Second level lightning protection circuit 5 is a discharge tube, and the fraction thunder-strike current of the electric power driving module 2 of flowing through is further discharged, and promptly the residual voltage that gets into load 3 is remake current limliting one time, makes it be lower than specified safe range.
In addition, first order lightning protection circuit 4, second level lightning protection circuit 5 all can select the earth resistance of Zinc-oxide piezoresistor or other type to replace, and have lightning protection effect preferably equally.When lightning current was big, Zinc-oxide piezoresistor was breakdown, and lightning current flows into earth terminal through Zinc-oxide piezoresistor rapidly, made the residual voltage that gets into load 3 be clamped in the preset range.
Among the present invention,, come most of thunder-strike current of self-power supply device 1 circuit transmission line to release, and second level lightning protection circuit 5 make the residual voltage that gets into load 3 littler through first lightning protection circuit 4 owing to be provided with the secondary lightning protection.This helps preventing that load is struck by lightning, and improves safety in utilization, prolongs its useful life.
In the present embodiment, electric supply installation 1 is AC power supply device (like a common civil power), and electric power driving module 2 is AD-CD (AC-DC) electric power driving module.In order to make lightning current secure flows mistake, all connect between each circuit element through flat shielded type cable, its terminals are screwed.
Only be the preferred implementation of the utility model below, should be pointed out that above-mentioned preferred implementation should not be regarded as the restriction to the utility model, the protection range of the utility model should be as the criterion with claim institute restricted portion.For those skilled in the art, in spirit that does not break away from the utility model and scope, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection range of the utility model.
Claims (10)
1. the electric power secondary system of a lightning protection; Comprise load as secondary device; Be provided with electric power driving module between it and the electric supply installation as primary equipment; It is characterized in that, comprise the two-stage lightning protection circuit, wherein: first lightning protection circuit is connected between the input and lightning protection end of said electric power driving module; Second lightning protection circuit is connected between the output and lightning protection end of said electric power driving module.
2. the electric power secondary system of lightning protection as claimed in claim 1 is characterized in that, said first lightning protection circuit is a kind of closed spark gap.
3. the electric power secondary system of lightning protection as claimed in claim 1 is characterized in that, said first lightning protection circuit is first earth resistance.
4. the electric power secondary system of lightning protection as claimed in claim 3 is characterized in that, said first earth resistance is for being Zinc-oxide piezoresistor.
5. the electric power secondary system of lightning protection as claimed in claim 1 is characterized in that, said second lightning protection circuit is a discharge tube.
6. the electric power secondary system of lightning protection as claimed in claim 1 is characterized in that, said second lightning protection circuit is second earth resistance.
7. the electric power secondary system of lightning protection as claimed in claim 6 is characterized in that, said second earth resistance is for being Zinc-oxide piezoresistor.
8. the electric power secondary system of lightning protection as claimed in claim 1 is characterized in that, said electric supply installation is an AC power supply device.
9. the electric power secondary system of lightning protection as claimed in claim 1 is characterized in that, said electric power driving module is the AC-DC power supply driver module.
10. the electric power secondary system of lightning protection as claimed in claim 1 is characterized in that, between said electric supply installation and the said electric power driving module, all be connected through shielded type cable between said electric power driving module and the said load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220141857 CN202633928U (en) | 2012-04-06 | 2012-04-06 | Lightning protection power secondary system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220141857 CN202633928U (en) | 2012-04-06 | 2012-04-06 | Lightning protection power secondary system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202633928U true CN202633928U (en) | 2012-12-26 |
Family
ID=47387074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220141857 Expired - Fee Related CN202633928U (en) | 2012-04-06 | 2012-04-06 | Lightning protection power secondary system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202633928U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104079151A (en) * | 2014-07-22 | 2014-10-01 | 诸暨市沃思环保技术有限公司 | Anti-jamming circuit for ventilator room power supply system driver module of buried sewage disposal device |
| CN104092386A (en) * | 2014-07-22 | 2014-10-08 | 诸暨市沃思环保技术有限公司 | Inverter circuit of drive module of power supply system of buried sewage treatment equipment ventilator room |
| CN104104238A (en) * | 2014-07-22 | 2014-10-15 | 诸暨市沃思环保技术有限公司 | Drive module of power supply system of buried sewage treatment equipment fan room |
| CN104104049A (en) * | 2014-07-22 | 2014-10-15 | 诸暨市沃思环保技术有限公司 | Lightning protection circuit of a buried sewage treatment equipment fan room |
| CN104104073A (en) * | 2014-07-22 | 2014-10-15 | 诸暨市沃思环保技术有限公司 | Buried sewage treatment equipment fan room |
| CN104100556A (en) * | 2014-07-22 | 2014-10-15 | 诸暨市沃思环保技术有限公司 | Buried sewage treatment equipment |
| CN104104074A (en) * | 2014-07-22 | 2014-10-15 | 诸暨市沃思环保技术有限公司 | Connecting cable of power supply system of buried sewage treatment equipment fan room |
| CN104104239A (en) * | 2014-07-22 | 2014-10-15 | 诸暨市沃思环保技术有限公司 | Power supply system of buried sewage treatment equipment fan room |
| CN104124676A (en) * | 2014-07-22 | 2014-10-29 | 诸暨市沃思环保技术有限公司 | Cable connection structure of power supply system of buried sewage treatment equipment |
| CN104538944A (en) * | 2014-11-19 | 2015-04-22 | 孙巍巍 | Novel surge protection device |
-
2012
- 2012-04-06 CN CN 201220141857 patent/CN202633928U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104079151A (en) * | 2014-07-22 | 2014-10-01 | 诸暨市沃思环保技术有限公司 | Anti-jamming circuit for ventilator room power supply system driver module of buried sewage disposal device |
| CN104092386A (en) * | 2014-07-22 | 2014-10-08 | 诸暨市沃思环保技术有限公司 | Inverter circuit of drive module of power supply system of buried sewage treatment equipment ventilator room |
| CN104104238A (en) * | 2014-07-22 | 2014-10-15 | 诸暨市沃思环保技术有限公司 | Drive module of power supply system of buried sewage treatment equipment fan room |
| CN104104049A (en) * | 2014-07-22 | 2014-10-15 | 诸暨市沃思环保技术有限公司 | Lightning protection circuit of a buried sewage treatment equipment fan room |
| CN104104073A (en) * | 2014-07-22 | 2014-10-15 | 诸暨市沃思环保技术有限公司 | Buried sewage treatment equipment fan room |
| CN104100556A (en) * | 2014-07-22 | 2014-10-15 | 诸暨市沃思环保技术有限公司 | Buried sewage treatment equipment |
| CN104104074A (en) * | 2014-07-22 | 2014-10-15 | 诸暨市沃思环保技术有限公司 | Connecting cable of power supply system of buried sewage treatment equipment fan room |
| CN104104239A (en) * | 2014-07-22 | 2014-10-15 | 诸暨市沃思环保技术有限公司 | Power supply system of buried sewage treatment equipment fan room |
| CN104124676A (en) * | 2014-07-22 | 2014-10-29 | 诸暨市沃思环保技术有限公司 | Cable connection structure of power supply system of buried sewage treatment equipment |
| CN104538944A (en) * | 2014-11-19 | 2015-04-22 | 孙巍巍 | Novel surge protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20140406 |