CN104092098A - Large-capacity intelligent overvoltage protector - Google Patents
Large-capacity intelligent overvoltage protector Download PDFInfo
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- CN104092098A CN104092098A CN201410252614.9A CN201410252614A CN104092098A CN 104092098 A CN104092098 A CN 104092098A CN 201410252614 A CN201410252614 A CN 201410252614A CN 104092098 A CN104092098 A CN 104092098A
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- zinc oxide
- overvoltage
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Abstract
A large-capacity intelligent overvoltage protector relates to the field of electrical technology. The large-capacity intelligent overvoltage protector comprises four zinc oxide resistors, a discharge acquisition coil, a bottom box, a cable and four discharge gaps. The four zinc oxide resistors form four-star connection. The four discharge gaps are respectively connected in series with the four zinc oxide resistors. The discharge acquisition coil is placed on the connecting line of the four zinc oxide resistors. The four discharge gaps, the four zinc oxide resistors and the discharge acquisition coil are mounted inside the bottom box. The cable is arranged at the top of a shell. The large-capacity intelligent overvoltage protector not only can well protect atmospheric overvoltage, but also can well protect phase-to-ground and inter-phase operating overvoltage.
Description
Technical field
The present invention relates to technical field of electricity, be specifically related to a kind of large energy and hold intellectual overvoltage protection device.
Background technology
The zinc oxide overvoltage protection product of China has experienced from the developing stage of goat's horn gap, silicon-carbide arrester, valve type arrester, single metal zinc oxide lightning arrester.Single metal zinc oxide lightning arrester is good non-linear with it, obtain applying very widely, but along with a large amount of uses of vacuum circuit-breaker, the switching overvoltage of its generation is also more and more serious on apparatus insulated impact all the time.Switching overvoltage had both been created in mutually ground, was also created in alternately, and single metal zinc oxide lightning arrester can only limit overvoltage relatively, and alternate switching overvoltage is not had to protective effect at all.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of large energy to hold intellectual overvoltage protection device, and the overvoltage alternate and mutually that is intended to vacuum circuit-breaker to produce well limits.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of large energy holds intellectual overvoltage protection device; it comprises that four groups of ZnO resistors, electric discharge gather coil, end box, four groups of discharging gaps; described four groups of ZnO resistors become four stars type to connect; respectively with four groups of ZnO resistors series connection of described four groups of discharging gaps; described electric discharge gathers coil and is placed on the connecting line of four groups of ZnO resistors; four groups of discharging gaps, four groups of ZnO resistors and electric discharge gather coil to be all installed on end box inner, and cable is placed in cover top portion.
The invention has the beneficial effects as follows:
1) adopted four unique wye connections, solved the harmonious problem of level of protection between phase-ground and phase-phase, alternate overvoltage can have been reduced greatly, strengthened the through-current capability between phase ground simultaneously, level of protection and reliability are all increased substantially;
2) use the structure of znr and discharging gap; both are protected each other; it is zero that discharging gap makes the chargeability of ZnO resistors; the nonlinear characteristic of ZnO resistors makes again after discharging gap action without afterflow; discharging gap is no longer born arc extinguishing task, has improved the useful life of product.
3) discharge impact coefficient is 1, and under various voltage waveforms, discharge voltage value equates, is not subject to various switching overvoltage waveform influences.Overvoltage protection value is accurate, and protective value is good, and 2ms square wave current can reach 800A, and tolerance is stronger, longer service life; Adopt molding type structure, inner without air gap, explosion-proof performance and humidity resistance are better.
Accompanying drawing explanation
Fig. 1 is product design figure of the present invention;
Fig. 2 is electrical structure diagram of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 1 and Figure 2, a kind of large circuit diagram that can hold intellectual overvoltage protection device 100, can hold greatly intellectual overvoltage protection device it comprise four groups of ZnO resistors 1, the collection coil that discharges, end box 2, cable 3, four groups of discharging gaps 4.1 one-tenth four stars type of four groups of ZnO resistors connects, 1 series connection of 4 respectively with four groups of ZnO resistors of four groups of discharging gaps.Electric discharge gathers coil and is placed on the connecting line of four groups of ZnO resistors 1, and four groups of discharging gaps 4, four groups of ZnO resistors 1 and electric discharge gather coil and be all installed on end box 2 inside, and cable 3 is placed in cover top portion.
The large energy that patent of the present invention provides holds intellectual overvoltage protection device 100 adopt four unique wye connections, solved the harmonious problem of level of protection between phase-ground and phase-phase, alternate overvoltage can be reduced greatly, strengthen the through-current capability between phase ground simultaneously, level of protection and reliability are all increased substantially; By the structure of znr and discharging gap, both are protected each other.It is zero that discharging gap makes the chargeability of ZnO resistors, and after the nonlinear characteristic of ZnO resistors makes again discharging gap move, without afterflow, discharging gap is no longer born arc extinguishing task, has improved the useful life of product.Discharge impact coefficient is 1, and under various voltage waveforms, discharge voltage value equates, is not subject to various switching overvoltage waveform influences.Overvoltage protection value is accurate, and protective value is good, and 2ms square wave current can reach 800A, and tolerance is stronger, longer service life; Adopt molding type structure, inner without air gap, explosion-proof performance and humidity resistance are better.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (1)
1. one kind can be held intellectual overvoltage protection device greatly; it is characterized in that: comprise that four groups of ZnO resistors, electric discharge gather coil, end box, four groups of discharging gaps; described four groups of ZnO resistors become four stars type to connect; respectively with four groups of ZnO resistors series connection of described four groups of discharging gaps; described electric discharge gathers coil and is placed on the connecting line of four groups of ZnO resistors, and it is inner that described four groups of discharging gaps, four groups of ZnO resistors and the collection coil that discharges are all installed on end box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410252614.9A CN104092098A (en) | 2014-06-09 | 2014-06-09 | Large-capacity intelligent overvoltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410252614.9A CN104092098A (en) | 2014-06-09 | 2014-06-09 | Large-capacity intelligent overvoltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104092098A true CN104092098A (en) | 2014-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410252614.9A Pending CN104092098A (en) | 2014-06-09 | 2014-06-09 | Large-capacity intelligent overvoltage protector |
Country Status (1)
| Country | Link |
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| CN (1) | CN104092098A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538946A (en) * | 2014-12-11 | 2015-04-22 | 安徽海美特电力设备有限公司 | Six-column all-phase triplex safety protection device |
| CN104538945A (en) * | 2014-12-11 | 2015-04-22 | 安徽海美特电力设备有限公司 | Three-phase combined type over-voltage protector |
-
2014
- 2014-06-09 CN CN201410252614.9A patent/CN104092098A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538946A (en) * | 2014-12-11 | 2015-04-22 | 安徽海美特电力设备有限公司 | Six-column all-phase triplex safety protection device |
| CN104538945A (en) * | 2014-12-11 | 2015-04-22 | 安徽海美特电力设备有限公司 | Three-phase combined type over-voltage protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141008 |
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| WD01 | Invention patent application deemed withdrawn after publication |