CN201829946U - Gapless three-column and three-phase combined type overvoltage protector - Google Patents
Gapless three-column and three-phase combined type overvoltage protector Download PDFInfo
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- CN201829946U CN201829946U CN2010205786427U CN201020578642U CN201829946U CN 201829946 U CN201829946 U CN 201829946U CN 2010205786427 U CN2010205786427 U CN 2010205786427U CN 201020578642 U CN201020578642 U CN 201020578642U CN 201829946 U CN201829946 U CN 201829946U
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- zinc oxide
- oxide valve
- valve plate
- epoxy
- box
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Abstract
The utility model discloses a gapless three-column and three-phase combined type overvoltage protector which relates to an overvoltage protection device of electrical equipment in an electrical power system. The overvoltage protector comprises four zinc oxide valve plates, wherein one ends of a first zinc oxide valve plate R1, a second zinc oxide valve plate R2 and a third zinc oxide valve plate R3 are respectively connected with A, B and C phase ends of protected equipment; the other ends of the first zinc oxide valve plate R1, the second zinc oxide valve plate R2 and the third zinc oxide valve plate R3 are serially connected with a fourth zinc oxide valve plate R4 through silver-plated flexible leads respectively; the other end of the fourth zinc oxide valve plate R4 is grounded; and the four zinc oxide valve plates are independently sealed and fixed on an epoxy bottom case. The overvoltage protector has the beneficial effects that the fourth zinc oxide valve plate R4 is installed in the epoxy bottom case in a sealing way so as to increase the safe interphase clear distance among the A, the B and the C phases and avoid interphase creepage and flashover; in addition, the silver-plated flexible leads are adopted for connection, so that charge flow during discharging can be ensured, and the service life of a product can be prolonged.
Description
Technical field
The utility model relates to the overvoltage protection of electric equipment in the electric power system, especially a kind of no gap three column type three phase combined over-voltage protectors.
Background technology
China nineteen seventies developed three relatively composite type SiC lightning arrester the trend that shields to alternate is arranged, but because the restriction of SiC body resistance performance, self can't normally move, so the alternate protection problem of lightning arrester is undecided always.Perfect along with the ZnO resistive performance, the alternate protection of three phase combined lightning arrester is theoretical is just put on " agenda " from nineteen nineties, and its excellent overvoltage protection performance is familiar with by most of electricity consumption industries.
At present, like product all is installed in four zinc oxide valve plate R1, R2, R3, R4 on the same surface of box at the bottom of the epoxy, and A, B, C phase spacing are less, easily produces alternate creepage, flashover, worker and puts interference, easy problem such as aging; In addition, similar conventional products takes up room bigger, and unsuitable consumer products is installed.
The utility model content
The technical problem that the utility model solved is to provide a kind of alternate creepage, flashover, aging of avoiding, and improves the product safety performance, easily the no gap three column type three phase combined over-voltage protectors of installing.
The technical problem that the utility model solved realizes by the following technical solutions:
A kind of no gap three column type three phase combined over-voltage protectors; comprise four zinc oxide valve plates; it is characterized in that: the described first zinc oxide valve plate R1; the second zinc oxide valve plate R2; the end of the 3rd zinc oxide valve plate R3 meets the A of protected equipment respectively; B; the C three phase terminals; at the described first zinc oxide valve plate R1; the second zinc oxide valve plate R2; the other end of the 3rd zinc oxide valve plate R3 is respectively by silver-plated flexible conductor and the 4th zinc oxide valve plate R4 series connection; the other end ground connection of described the 4th zinc oxide valve plate R4; described four zinc oxide valve plates are sealed independently of one another, be fixed at the bottom of the epoxy on the box.
The outer cover of described four zinc oxide valve plates is provided with the silicon rubber insulation cover, is contained in the silicon rubber insulation cover by rubber securing member fixed sealing, and envelope is irritated in the cavity that described silicon rubber insulation overlaps with box-like at the bottom of the epoxy becomes high-intensity epoxy resin and curing agent.
Offer three disks at the bottom of the described epoxy on the box successively, disk is made up of three independent fanning strips, offer the connecting hole that matches with bolt at the center of described disk, the described first zinc oxide valve plate R1, the second zinc oxide valve plate R2, the 3rd zinc oxide valve plate R3 are fixed at the bottom of the epoxy on the box by bolt and connecting hole successively.
Described the 4th zinc oxide valve plate R4 two ends tray up and down is set, on the wallboard that is bolted to box at the bottom of the epoxy.
The beneficial effects of the utility model are that the 4th zinc oxide valve plate R4 sealing is installed at the bottom of the epoxy in the box, A, B, the alternate safe clear distance of C three-phase are strengthened, stopped the phenomenon of alternate creepage, flashover, adopted silver-plated flexible conductor to connect in addition, electric charge when having guaranteed discharging action is through-flow, has improved the useful life of product; Just strengthened alternate safe clear distance under the situation of operation, security performance has improved 60 times than similar conventional products, has further advised the installation of consumer products.Simultaneously, four zinc oxide valve plates are independent sealed separately, and the aging phenomenon of zinc oxide can not occur the product overall failure again and jeopardize system, but and the unit safeguard, save cost.
Description of drawings
Fig. 1 is an electrical schematic diagram of the present utility model;
Fig. 2 is the winding diagram that the utility model inserts protected transformer;
Fig. 3 is a structural representation of the present utility model;
Fig. 4 is the vertical view of box at the bottom of the epoxy among Fig. 3.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in figures 1 and 3; a kind of no gap three column type three phase combined over-voltage protectors; comprise four zinc oxide valve plates; the first zinc oxide valve plate R1; the second zinc oxide valve plate R2; the end of the 3rd zinc oxide valve plate R3 meets the A of protected equipment respectively; B; the C three phase terminals; at the first zinc oxide valve plate R1; the second zinc oxide valve plate R2; the other end of the 3rd zinc oxide valve plate R3 is respectively by silver-plated flexible conductor and the 4th zinc oxide valve plate R4 series connection; other end ground connection with the 4th zinc oxide valve plate R4; simultaneously four zinc oxide valve plates seal independently of one another, are fixed at the bottom of the epoxy on the box 10.
Install tray down at the two ends of the 4th zinc oxide valve plate R4, be fixed on by bolt 20 on the wallboard of box 10 at the bottom of the epoxy.After being installed at the bottom of the epoxy the 4th zinc oxide valve plate R4 sealing in the box 10, upper supporting block is connected with the 4th zinc oxide valve plate R4, and following tray is connected with bolt 20.The 4th zinc oxide valve plate R4 sealing here is installed at the bottom of the epoxy in the overvoltage protection device in the box 10; avoided the too small influence that causes alternate creepage, flashover to discharge performance of alternate clear distance; solved the less difficult problem of alternate clear distance that similar conventional products is difficult to overcome; alternate safe clear distance is guaranteed; not having the gap overvoltage protection device with routine compares with traditional lightning arrester; alternate overvoltage has reduced by 70%～85%, and the reliability of protection greatly improves.In addition, the voltge surge coefficient in the utility model is 1, and the discharge voltage value all equates under various voltage waveforms, and be not subjected to the influence of various switching overvoltage waveforms, the overvoltage protection value is accurate, and protective value is good.
As shown in Figure 2; the protected equipment of a termination of the first zinc oxide valve plate R1, the second zinc oxide valve plate R2, the 3rd zinc oxide valve plate R3 is the three phase terminals of motor 30; the other end is connected with the 4th zinc oxide valve plate R4 by silver-plated flexible conductor; the other end ground connection of the 4th zinc oxide valve plate R4; this electrical wiring mode is reasonable; be convenient to install, can avoid occurring the worker simultaneously and put phenomenons such as interference, galvanic corrosion.
As shown in Figure 3, the outer cover of four zinc oxide valve plates is equipped with silicon rubber insulation cover 40.
That is: the outside of the outside of the outside of the outside of the first zinc oxide valve plate R1, the second zinc oxide valve plate R2, the 3rd zinc oxide valve plate R3, the 4th zinc oxide valve plate R4 is arranged with silicon rubber insulation cover 40 respectively.Adopt fire-retardant, ageing-resistant silicon rubber to do sheathing material, make that electrical insulation properties of the present utility model is good, dielectric strength is high, anti-galvanic corrosion, ageing-resistant, take into full account phase spacing and creepage distance, and can install flexibly according to field condition.
As shown in Figure 3 and Figure 4; four zinc oxide valve plates all are contained in the inside of silicon rubber insulation cover 40 by rubber securing member fixed sealing; the termination silicon rubber high-voltage cable 50 of the first zinc oxide valve plate R1, the second zinc oxide valve plate R2, the 3rd zinc oxide valve plate R3 and the 4th zinc oxide valve plate R4; end away from zinc oxide valve plate on the silicon rubber high-voltage cable 50 is equipped with wiring copper nose 60; wherein; high-voltage cable 50 connects A, B, the C three phase terminals of protected equipment by wiring copper nose 61,62,63, and high-voltage cable 50 is by wiring copper nose 64 ground connection.The first zinc oxide valve plate R1, the second zinc oxide valve plate R2, the 3rd zinc oxide valve plate R3 other end are fixed at the bottom of the epoxy on the box 10 by bolt 20, the 4th zinc oxide valve plate R4 directly is fixed on the wallboard of box 10 at the bottom of the epoxy by bolt 20, be connected by copper sheet between the 4th zinc oxide valve plate R4 and the bolt 20, bolt 20 is used nut screwing clamping after passing the wallboard of box 10 at the bottom of the epoxy.Offer three disks 11 at the bottom of the epoxy on the box 10 successively, disk 11 is made up of three independent fanning strips, the center of disk 11 also is provided with the connecting hole 12 that matches with bolt 20, the first zinc oxide valve plate R1, the second zinc oxide valve plate R2, the 3rd zinc oxide valve plate R3 are fixed at the bottom of the epoxy on the box 10 by bolt 20 and connecting hole 12, and bolt 20 is used nut screwing clamping after passing connecting hole 12.
In conjunction with Fig. 3 and shown in Figure 4, when mounted, zinc oxide assembly fixing seal is overlapped in 40 at silicon rubber insulation, with the first zinc oxide valve plate R1, the second zinc oxide valve plate R2, the 3rd zinc oxide valve plate R3 and the 4th zinc oxide valve plate R4 are fixed at the bottom of the epoxy on the box 10 successively, connect silicon rubber high-voltage cable 50, after loading onto wiring copper nose 60, be inverted, high-intensity epoxy resin and curing agent 70 are poured in the cavity that silicon rubber insulation cover 40 and box at the bottom of the epoxy 10 form by the gap between the fanning strip on the disk 11, fill up the gap until epoxy resin and curing agent 70, treat to install after high-intensity epoxy resin and curing agent 70 solidify.Adopt the mode of pouring epoxy resin and curing agent 70 can guarantee that zinc oxide valve plate and gap body DC reach good sealing effectiveness, the while also can increase the intensity of combination overvoltage protector itself, prevents phenomenon such as make moist, wear out better.
In sum; core of the present utility model is to adopt the 4th zinc oxide valve plate R4 sealing to be installed in the structure in the box at the bottom of the epoxy; and with zinc oxide valve plate be installed separately separately, each other the sealing; avoiding there is cavity around the main body zinc oxide assembly, solved that the insoluble phase spacing of no gap three column type combination overvoltage protectors in the prior art is less to be caused the safety problem of alternate creepage, flashover and solved the problem such as make moist, wear out that seals simultaneously.
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 describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. no gap three column type three phase combined over-voltage protectors; comprise four zinc oxide valve plates; it is characterized in that: the described first zinc oxide valve plate R1; the second zinc oxide valve plate R2; the end of the 3rd zinc oxide valve plate R3 meets the A of protected equipment respectively; B; the C three phase terminals; at the described first zinc oxide valve plate R1; the second zinc oxide valve plate R2; the other end of the 3rd zinc oxide valve plate R3 is respectively by silver-plated flexible conductor and the 4th zinc oxide valve plate R4 series connection; the other end ground connection of described the 4th zinc oxide valve plate R4; described four zinc oxide valve plates are sealed independently of one another, be fixed at the bottom of the epoxy on the box.
2. according to the described no gap of claim 1 three column type three phase combined over-voltage protectors; it is characterized in that: the outer cover of described four zinc oxide valve plates is provided with the silicon rubber insulation cover; be contained in the silicon rubber insulation cover by rubber securing member fixed sealing, envelope is irritated in the cavity that described silicon rubber insulation overlaps with box-like at the bottom of the epoxy becomes high-intensity epoxy resin and curing agent.
3. according to the described no gap of claim 1 three column type three phase combined over-voltage protectors; it is characterized in that: offer three disks at the bottom of the described epoxy on the box successively; disk is made up of three independent fanning strips; offer the connecting hole that matches with bolt at the center of described disk, the described first zinc oxide valve plate R1, the second zinc oxide valve plate R2, the 3rd zinc oxide valve plate R3 are fixed at the bottom of the epoxy on the box by bolt and connecting hole successively.
4. according to the described no gap of claim 1 three column type three phase combined over-voltage protectors, it is characterized in that: described the 4th zinc oxide valve plate R4 two ends tray up and down is set, on the wallboard that is bolted to box at the bottom of the epoxy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205786427U CN201829946U (en) | 2010-10-26 | 2010-10-26 | Gapless three-column and three-phase combined type overvoltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205786427U CN201829946U (en) | 2010-10-26 | 2010-10-26 | Gapless three-column and three-phase combined type overvoltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201829946U true CN201829946U (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205786427U Expired - Fee Related CN201829946U (en) | 2010-10-26 | 2010-10-26 | Gapless three-column and three-phase combined type overvoltage protector |
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| CN (1) | CN201829946U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510054A (en) * | 2011-11-07 | 2012-06-20 | 河南博特电气有限公司 | Resistance-capacitance absorber and its production method |
| CN106486225A (en) * | 2016-12-21 | 2017-03-08 | 保定市三得尔电力科技有限公司 | 6 10KV plateau type three phase combined over-voltage protectors and preparation method |
| CN109755929A (en) * | 2019-03-14 | 2019-05-14 | 合肥格威特电气技术有限公司 | A kind of outdoor type three phase combined over-voltage protector of 35kV |
-
2010
- 2010-10-26 CN CN2010205786427U patent/CN201829946U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510054A (en) * | 2011-11-07 | 2012-06-20 | 河南博特电气有限公司 | Resistance-capacitance absorber and its production method |
| CN102510054B (en) * | 2011-11-07 | 2016-02-03 | 靳力 | Rc absorber and preparation method thereof |
| CN106486225A (en) * | 2016-12-21 | 2017-03-08 | 保定市三得尔电力科技有限公司 | 6 10KV plateau type three phase combined over-voltage protectors and preparation method |
| CN109755929A (en) * | 2019-03-14 | 2019-05-14 | 合肥格威特电气技术有限公司 | A kind of outdoor type three phase combined over-voltage protector of 35kV |
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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: 20110511 Termination date: 20131026 |