CN201355763Y - Self-releasing three-phase combined type over-voltage protector - Google Patents
Self-releasing three-phase combined type over-voltage protector Download PDFInfo
- Publication number
- CN201355763Y CN201355763Y CNU2009201427564U CN200920142756U CN201355763Y CN 201355763 Y CN201355763 Y CN 201355763Y CN U2009201427564 U CNU2009201427564 U CN U2009201427564U CN 200920142756 U CN200920142756 U CN 200920142756U CN 201355763 Y CN201355763 Y CN 201355763Y
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- CN
- China
- Prior art keywords
- zinc oxide
- oxide valve
- valve plate
- self
- valve piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a self-releasing three-phase combined type over-voltage protector, which comprises four zinc oxide valve pieces FR, wherein, one end of the first zinc oxide valve piece FRI, one end of the second zinc oxide valve piece FR2 and one end of the third zinc oxide valve piece FR3 are connected with an A phase end, a B phase end and a C phase end of a protected device, respectively; the other end of the first zinc oxide valve piece FR1, the other end of the second zinc oxide valve piece FR2 and the other end of the third zinc oxide valve piece FR3 are in serials connection with a discharge clearance components CG; the other end of the discharge clearance components CG is in series connection with the fourth zinc oxide valve piece FR4; the other end of the fourth zinc oxide valve piece FR4 is grounded; and a release device BK is in series connection between the first zinc oxide valve piece FR1, the second zinc oxide valve piece FR2, the third zinc oxide valve piece FR3 and the discharge clearance component CG, and is arranged on the first zinc oxide valve piece FR1, the second zinc oxide valve piece FR2 and the third zinc oxide valve piece FR3. By the modification of the release device, the release device is arranged on the zinc oxide valve pieces based on the original space, thereby overcoming the restriction due to insufficient site space and facilitating the installation.
Description
Technical field
The utility model relates to a kind of self-disengaging three phase combined over-voltage protector.
Background technology
At present; though the alternate and relatively superpotential problem of indoor combination overvoltage protector energy resolution system; but can not thoroughly realize the purpose of system safety, combination overvoltage protector causes the phase fault accident owing to the aging resonance overvoltage that exists can allow protector collapse; cause the combination overvoltage protector blast; therefore, it is necessary using combination overvoltage protector, for the safety of system; make protector withdraw from fault, promptly the disengaging function of protector is important too.
Though the scheme comparative maturity of overvoltage protection device series connection release; can solve overvoltage protection device because of aging problem of exploding; but; it is implemented the place and only is confined to the open air; overvoltage protection device for indoor use; especially combination overvoltage protector, the scene does not have the installing space of release.Present release roughly is divided into drop type, heat explosion type and hot melten type, and the former two belongs to the motion space demand, and the overvoltage protection device that has only hot melten type (promptly using current limiting fuse) notion to meet in the cabinet uses; But because the constraint in on-the-spot space, the current limiting fuse of arbitrary form all can't be implemented to install at present.Therefore, on the solution of overvoltage protection, because site space can't be accomplished complete enforcement.
The utility model content
The purpose of this utility model is to provide a kind of can overcome the self-disengaging three phase combined over-voltage protector that spatial limitation, inside are equipped with current limiting fuse.
For achieving the above object; a kind of self-disengaging three phase combined over-voltage protector that the utility model provides; comprise four zinc oxide valve plate FR; wherein first; two; three zinc oxide valve plate FR1; FR2; the end of FR3 meets the A of protected equipment respectively; B; the C three phase terminals; first; two; three zinc oxide valve plate FR1; FR2; the other end of FR3 is connected with discharging gap assembly CG respectively; the other end of discharging gap assembly CG is connected with the 4th zinc oxide valve plate FR4; the other end ground connection of the 4th zinc oxide valve plate FR4; described first; two; three zinc oxide valve plate FR1; FR2; the release unit BK that connects between FR3 and the discharging gap CG, release unit BK is set in first; two; three zinc oxide valve plate FR1; FR2; on the FR3.
The utility model, is set in release unit on the zinc oxide valve plate on the former basis that has living space by release unit is improved, and has overcome the restriction that is brought because of the site space deficiency, is convenient to install.
Description of drawings
Fig. 1 is the structural representation of fuse in the utility model;
Fig. 2 is an external structure schematic diagram of the present utility model;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the left view of Fig. 2;
Fig. 5 is an electrical schematic diagram of the present utility model;
Fig. 6 is the utility model and extraneous schematic diagram of communicating by letter.
Embodiment
A kind of self-disengaging three phase combined over-voltage protector; comprise four zinc oxide valve plate FR; wherein first; two; three zinc oxide valve plate FR1; FR2; the end of FR3 meets the A of protected equipment respectively; B; the C three phase terminals; first; two; three zinc oxide valve plate FR1; FR2; the other end of FR3 is connected with discharging gap assembly CG respectively; the other end of discharging gap assembly CG is connected with the 4th zinc oxide valve plate FR4; the other end ground connection of the 4th zinc oxide valve plate FR4; described first; two; three zinc oxide valve plate FR1; FR2; release unit BK connects between FR3 and the discharging gap CG; release unit BK comprises first; two; three fuse BK1; BK2; BK3; first; two; three fuse BK1; BK2; BK3 is set in first respectively; two; three zinc oxide valve plate FR1; FR2; on the FR3, as Fig. 3; shown in 5.
In conjunction with Fig. 1,2,3, described release unit BK comprises first, second and third fuse BK1, BK2, BK3, fuse comprises the square shell 1 of hollow, the support 2 of pipe shape is set in the shell 1, shell 1 is the flame retardant plastics member with support 2, the outside of shell 1 is provided with single-stage high voltage cable 5 downwards and draws, and upwards is provided for the fusing indication 6 of indicating fuse state.The outer surface of support 2 is provided with spiral helicine protruding 3, arrange bayonet socket along interior interruption of raceway groove that projection 3 constitutes, banded non-constant section melt 4 be stuck on the bayonet socket and in the shape of a spiral shape be looped around on the outer surface of support 2, banded non-constant section melt 4 has narrow neck at interval, narrow neck quantity is by the predetermined energy arc voltage relative set of moving, the radial dimension of support 2 hollow parts and the radial dimension of zinc oxide valve plate FR match, first, two, three fuse BK1, BK2, BK3 is set in first respectively, two, three zinc oxide valve plate FR1, FR2, on the FR3, the line between zinc oxide valve plate FR and the fuse is through the insulating barrier between the two.This nested structure has strengthened the diameter of fuse on the one hand, is guaranteeing enough drop-out voltages, promptly under the enough situation of fusible core length, has reduced the height of fuse; On the other hand, shell 1 and support 2 are set to hollow form, it can be applied mechanically with zinc oxide valve plate FR, reduced overall height, when finishing over-voltage protection function, in limited space, arrange fuse simply and easily.
In conjunction with Fig. 2,3,4; described release unit BK and in the zinc oxide valve plate FR that inlays all be arranged in the housing 10; first, second and third zinc oxide valve plate FR1, FR2, FR3 upwards are provided with the terminal 11 that joins that links to each other with protected equipment respectively; the terminal 11 that joins is emerging in the top of housing 10; the 4th zinc oxide valve plate FR4 draws the ground binding post 12 that is connected with ground, and ground binding post 12 is emerging in the side of housing 10.
In conjunction with Fig. 2,3,4, described discharging gap assembly CG is formed in parallel by first, second, third and fourth discharging gap CG1, CG2, CG3, CG4, first, second and third discharging gap CG1, CG2, CG3 be arranged in first, second and third fuse BK1, BK2, BK3 under.The side of first, second and third discharging gap CG1, CG2, CG3 is provided with sample resistance 13, in sample resistance 13 stationary housings 10, the receiving box 15 that also sets firmly launch-box 14 and be used to receive launch-box 14 signal that sends in the housing 10, also be provided with the LED lamp on the housing 10, the state that is used for indicating fuse, its effect are equal to fusing indication 6.When the LED lamp is bright, show that fuse does not fuse; When the LED lamp goes out, show fuse blows.Install leakage current sample resistance 13 additional at the discharging gap place, the leakage current of an artificial faint microampere order of manufacturing is collected its energy by launch-box 14, and launch-box sends a signal to receiving box 15 on the one hand, for the LED lamp provides power supply, adopt intermittent mode to light the LED lamp on the other hand.
Below in conjunction with Fig. 5,6 the utility model will be further described.
Sample resistance 13 takes out energy and sends in the launch-box 14; launch-box 14 minutes three tunnel stores energy respectively; and intermittence is lighted corresponding LED lamp respectively; as characterization; wherein the LED lamp can be used as directly flicker on housing 10 of light source; also can be used as the source ends of optical fiber; by optical fiber light signal is sent to optical-electrical converter; optical-electrical converter is by the state monitor of the internal data line output signal of telecommunication to the outside; make outside state monitor possess the discharge counting; the disconnector break-make is the function of indication in real time; outside state monitor utilizes communication interface and fieldbus again; the signal of telecommunication is delivered to computer background; can realize the real-time detection of the utility model operating state, avoid field condition and patrol and examine the asynchronous guard mode mistakes and omissions problem that causes.
In a word, core of the present utility model is that the structure of fuse is set to hollow form, and fuse is set on the zinc oxide valve plate FR, has realized the nested arrangement of fuse and zinc oxide valve plate FR, has overcome the spatial limitation of overvoltage protection device to fuse.
Claims (7)
1; a kind of self-disengaging three phase combined over-voltage protector; comprise four zinc oxide valve plate FR; wherein first; two; three zinc oxide valve plate FR1; FR2; the end of FR3 meets the A of protected equipment respectively; B; the C three phase terminals; first; two; three zinc oxide valve plate FR1; FR2; the other end of FR3 is connected with discharging gap assembly CG respectively; the other end of discharging gap assembly CG is connected with the 4th zinc oxide valve plate FR4; the other end ground connection of the 4th zinc oxide valve plate FR4; it is characterized in that: described first; two; three zinc oxide valve plate FR1; FR2; the release unit BK that connects between FR3 and the discharging gap CG, release unit BK is set in first; two; three zinc oxide valve plate FR1; FR2; FR3.
2; self-disengaging three phase combined over-voltage protector according to claim 1; it is characterized in that: described release unit BK comprises first; two; three fuse BK1; BK2; BK3; fuse comprises the square shell (1) of hollow; the support of pipe shape (2) is set in the shell (1); the outer surface of support (2) is provided with spiral helicine projection (3); arrange bayonet socket along interior interruption of raceway groove that projection (3) constitutes; banded non-constant section melt (4) be stuck on the bayonet socket and in the shape of a spiral shape be looped around on the outer surface of support (2); the radial dimension of support (2) hollow part and the radial dimension of zinc oxide valve plate FR match first; two; three fuse BK1; BK2; BK3 is set in first respectively; two; three zinc oxide valve plate FR1; FR2; on the FR3.
3, self-disengaging three phase combined over-voltage protector according to claim 2 is characterized in that: described banded non-constant section melt (4) has narrow neck at interval.
4, self-disengaging three phase combined over-voltage protector according to claim 2; it is characterized in that: described shell (1) is the flame retardant plastics member with support (2); the outside of shell (1) is provided with single-stage high voltage cable (5) downwards and draws, and upwards is provided for the fusing indication (6) of indicating fuse state.
5, self-disengaging three phase combined over-voltage protector according to claim 2; it is characterized in that: described release unit BK and in the zinc oxide valve plate FR that inlays all be arranged in the housing (10); first, second and third zinc oxide valve plate FR1, FR2, FR3 upwards are provided with the terminal that joins (11) that links to each other with protected equipment respectively; the terminal (11) that joins is emerging in the outside of housing (10); the 4th zinc oxide valve plate FR4 draws ground binding post (12), and ground binding post (12) is emerging in the side of housing (10).
6, self-disengaging three phase combined over-voltage protector according to claim 1 and 2; it is characterized in that: described discharging gap assembly CG is formed in parallel by first, second, third and fourth discharging gap CG1, CG2, CG3, CG4, first, second and third discharging gap CG1, CG2, CG3 be arranged in first, second and third fuse BK1, BK2, BK3 under.
7, according to claim 5 or 6 described self-disengaging three phase combined over-voltage protectors; it is characterized in that: the side of described first, second and third discharging gap CG1, CG2, CG3 is provided with sample resistance (13); in sample resistance (13) stationary housing (10); the receiving box (15) that also sets firmly launch-box (14) in the housing (10) and be used to receive launch-box (14) signal that sends is provided with the LED lamp on the support of housing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201427564U CN201355763Y (en) | 2009-01-16 | 2009-01-16 | Self-releasing three-phase combined type over-voltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201427564U CN201355763Y (en) | 2009-01-16 | 2009-01-16 | Self-releasing three-phase combined type over-voltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201355763Y true CN201355763Y (en) | 2009-12-02 |
Family
ID=41412103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201427564U Expired - Fee Related CN201355763Y (en) | 2009-01-16 | 2009-01-16 | Self-releasing three-phase combined type over-voltage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201355763Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478140B (en) * | 2009-01-16 | 2012-05-02 | 安徽国科电力设备有限公司 | Self-disengaging three phase combined over-voltage protector |
-
2009
- 2009-01-16 CN CNU2009201427564U patent/CN201355763Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478140B (en) * | 2009-01-16 | 2012-05-02 | 安徽国科电力设备有限公司 | Self-disengaging three phase combined over-voltage protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20170116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |