CN203504173U - Gapped high-energy overvoltage absorption device - Google Patents
Gapped high-energy overvoltage absorption device Download PDFInfo
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- CN203504173U CN203504173U CN201320496346.6U CN201320496346U CN203504173U CN 203504173 U CN203504173 U CN 203504173U CN 201320496346 U CN201320496346 U CN 201320496346U CN 203504173 U CN203504173 U CN 203504173U
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Abstract
The utility model discloses a gapped high-energy overvoltage absorption device, and relates to the technical field of lightning arresters. The device provided by the utility model is characterized in that the device comprises four units: A, B, C, and D; the four units are in series connection through one zinc-oxide valve plate and one gapped body; the four units are in electrical connection at the outer side of the gapped body; the units A, B and C are respectively connected with a three-phase power supply at the outer side of the zinc-oxide valve plate; and the D unit is grounded at the outer side of the zinc-oxide valve plate. The device provided by the utility model is unique and novel in design thought, is reasonable and reliable in technical performance, is high in protection performance, is accurate in protection value, is good in performance of electrical insulation, is high in dielectric strength, and is resistant to electric corrosion and aging.
Description
Technical field:
The utility model relates to lightning arrester technical field, specifically gapped high energy overvoltage absorbing device.
Background technology:
China's twentieth century develop the seventies three relatively composite type SiC lightning arrester have the trend shielding to alternate; but because limiting of SiC body resistance performance cannot normally be moved self; so the alternate protection problem of lightning arrester is just always undecided; perfect along with Zn resistive performance, the alternate protection theory of three-phase combined voltage protection wall is just put on " agenda " and its excellent switching overvoltage barrier propterty is familiar with by most of electricity consumption industries from nineteen nineties.But the existing lightning arrester general structure with alternate defencive function is also relatively simple, performance need to improve, and therefore research and development have the high performance overvoltage absorbing device with lightning protection function and have great importance.
Utility model content:
The gapped high energy overvoltage absorbing device that provides a kind of protective value high is provided technical problem to be solved in the utility model.
Technical problem to be solved in the utility model adopts following technical scheme to realize:
Gapped high energy overvoltage absorbing device, it is characterized in that: comprise A, B, C, tetra-unit of D, four described unit are all to be connected with a clearance body by a zinc oxide valve plate, four unit are electrically connected in the outside of clearance body, described A, B, tri-unit of C are connected with three-phase electricity in the outside of zinc oxide valve plate, and described D unit is at the outside of zinc oxide valve plate grounding connection.
Gapped high energy overvoltage absorbing device, also comprises shell, and described shell is selected fire-retardant, ageing-resistant silastic material.
Described shell is outside the residing position of binding post, and other position is hermetically sealed.
The utility model mentality of designing is unique novel, technical performance is rationally reliable, parameter is chosen science, particularly adopted after fabricated structure, when manufacturing, can prepare flexibly the discharge voltage numerical value between " phase-phase ", " phase-ground ", can limit more accurately like this overvoltage numerical value between " phase-phase ", " phase-ground ", owing to adopting composite type, do not have column and D all to put mutually gap, so in discharge process, discharging current is at least by plural gap.
It is comprised of A, B, C, D Unit tetra-, organize a performance between two six complete lightning arresters. three are " lightning arrester between " phase-phase "; another three for " phase-ground " and between lightning arrester. wherein A, B, C between two tandem compound become three " phase-phase " lightning arrester; in order to limit alternate overvoltage; same A, B, C form three " phase-ground " lightning arresters with D unit respectively; thus it can not only be to " phase-ground " overvoltage plays restriction, simultaneously it aspect restriction " phase-phase " overvoltage with restriction " phase-ground " overvoltage plays equal effect.
This product is having more following beneficial effect aspect protection high-voltage motor and miscellaneous equipment:
(1) structure that adopts zinc oxide valve plate and discharging gap to combine; both are protected each other. it is zero that discharging gap makes the chargeability of zinc oxide valve plate; zinc oxide valve plate non-linear makes again blow-out immediately after discharging gap action; discharging gap is no longer born arc extinguishing task; improved the useful life of product. in switching overvoltage situation, operating life is higher 5～30 times than gapless Oxide Arrester.
(2) voltge surge coefficient is 1; under various voltage waveforms, discharge voltage value all equates; be not subject to the impact of various switching overvoltage waveforms; overvoltage protection value is accurate, and protective value is good. and adopt many interstitial structures, reduced the decentralization of electric discharge; protection value is accurate; compare with conventional lightning arrester, alternate overvoltage has reduced approximately 50%, and the reliability of protection greatly improves.
(3) this product selects fire-retardant, ageing-resistant silicon rubber to do sheathing material, draws silicon rubber high-tension cable and zinc oxide valve plate from inside, therefore its electrical insulation properties is good, dielectric strength is high, anti-galvanic corrosion, ageing-resistant, without considering phase spacing and creepage distance.Can install flexibly according to field condition.
Accompanying drawing explanation:
Fig. 1 is the utility model principle schematic.
Embodiment:
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, gapped high energy overvoltage absorbing device, comprise A, B, C, tetra-unit of D, four unit are all to be connected with a clearance body DC by a zinc oxide valve plate MOR, four unit are electrically connected in the outside of clearance body DC, A, B, tri-unit of C are connected with three-phase electricity in the outside of zinc oxide valve plate MOR, and D unit is at the outside of zinc oxide valve plate MOR grounding connection.Gapped high energy overvoltage absorbing device also comprises shell, and shell is selected fire-retardant, ageing-resistant silastic material.Shell is outside the residing position of binding post, and other position is hermetically sealed.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. gapped high energy overvoltage absorbing device, it is characterized in that: comprise A, B, C, tetra-unit of D, four described unit are all to be connected with a clearance body by a zinc oxide valve plate, four unit are electrically connected in the outside of clearance body, described A, B, tri-unit of C are connected with three-phase electricity in the outside of zinc oxide valve plate, and described D unit is at the outside of zinc oxide valve plate grounding connection.
2. gapped high energy overvoltage absorbing device according to claim 1, is characterized in that: also comprise shell, described shell is selected fire-retardant, ageing-resistant silastic material.
3. gapped high energy overvoltage absorbing device according to claim 2, is characterized in that: described shell is outside the residing position of binding post, and other position is hermetically sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320496346.6U CN203504173U (en) | 2013-08-14 | 2013-08-14 | Gapped high-energy overvoltage absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320496346.6U CN203504173U (en) | 2013-08-14 | 2013-08-14 | Gapped high-energy overvoltage absorption device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203504173U true CN203504173U (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320496346.6U Expired - Fee Related CN203504173U (en) | 2013-08-14 | 2013-08-14 | Gapped high-energy overvoltage absorption device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203504173U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283206A (en) * | 2014-09-22 | 2015-01-14 | 合肥凯正电气技术有限公司 | PGB four-star-shaped three-phase combined type overvoltage protector |
| CN104300524A (en) * | 2014-09-22 | 2015-01-21 | 合肥凯正电气技术有限公司 | Large-capacity overvoltage protection device |
-
2013
- 2013-08-14 CN CN201320496346.6U patent/CN203504173U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283206A (en) * | 2014-09-22 | 2015-01-14 | 合肥凯正电气技术有限公司 | PGB four-star-shaped three-phase combined type overvoltage protector |
| CN104300524A (en) * | 2014-09-22 | 2015-01-21 | 合肥凯正电气技术有限公司 | Large-capacity overvoltage protection device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20150814 |
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| EXPY | Termination of patent right or utility model |