CN202940080U - Direct current arrester - Google Patents
Direct current arrester Download PDFInfo
- Publication number
- CN202940080U CN202940080U CN 201220668638 CN201220668638U CN202940080U CN 202940080 U CN202940080 U CN 202940080U CN 201220668638 CN201220668638 CN 201220668638 CN 201220668638 U CN201220668638 U CN 201220668638U CN 202940080 U CN202940080 U CN 202940080U
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- CN
- China
- Prior art keywords
- arrester
- direct current
- voltage terminal
- resistor disc
- unit
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Abstract
The utility model provides a direct current arrester which comprises an arrester element and a separator which are connected in series, wherein a high-voltage wiring end and a low-voltage wiring end are arranged on the arrester element; the low-voltage wiring end of the arrester element is connected with the separator; the arrester element also comprises a composite jacket, a resistor disc, an insulating pad, a metal flange and a spring; the high-voltage wiring end is arranged on the top of the composite jacket; the metal flange is arranged at the bottom of the composite jacket; the resistor disc, the low-voltage wiring end and the insulating pad are sequentially overlapped in series and are compressed and packaged in the composite jacket by the spring; and the resistor disc is a zinc oxide resistor disc. The arrester element and the separator are connected in series and are connected in series into a whole through a bolt, and the requirements of a rail transit contact network on the arrester fault separation can be met; and moreover, the direct current resistor disc is used in the arrester, the arrester is high in discharge current capacity and low in residual voltage, and the protection performance, long-term operating stability and long-term operating safety of the arrester are guaranteed.
Description
Technical field
The utility model relates to high voltage direct current lightning arrester field, particularly a kind of direct current arrester.
Background technology
In railway traffic contact network, lightning arrester is as important overvoltage protection, in parallel with protected electric equipment, and for preventing, protective device equipment from suffering the damage of thunder and lightning and switching overvoltage.
Particularity due to the operating condition of railway traffic contact network, be applied in DC power-supply system, reliability of operation requires high, when surge arrester failure, can break away from system, the normal operation of assurance system, the discharge capacity that railway traffic contact network needs with direct current arrester simultaneously is large and residual voltage is low.Therefore, common lightning arrester can't meet the protection requirement of railway traffic contact network.
The utility model content
The purpose of this utility model is to provide a kind of direct current arrester, can protect railway traffic contact network and electric equipment thereof, and it is with detachment device, when surge arrester failure, can break away from system, guarantees the normal operation of system.
For achieving the above object, the utility model adopts following technical scheme:
A kind of direct current arrester, comprise the unit of an arrester and the disconnector that mutually are connected in series; Unit of an arrester is provided with high-voltage terminal and low voltage terminal; The low voltage terminal of unit of an arrester is connected with disconnector.
The utility model further improves and is: the low voltage terminal of described unit of an arrester and ground insulation.
The utility model further improves and is: described unit of an arrester also comprises composite sheath, resistor disc, insulation cushion, metal flange and spring; High-voltage terminal is arranged at the top of composite sheath, and metal flange is arranged at the bottom of composite sheath; Resistor disc, low voltage terminal and the insulation cushion closed assembly of connecting successively, be encapsulated in composite sheath by spring compression; Spring one end connects high-voltage terminal, other end contact resistance sheet.
The utility model further improves and is: 1～5 described resistor discs are installed in composite sheath; Described resistor disc is zinc oxide resistance sheet.
The utility model further improves and is: described insulation cushion adopts the expoxy glass wire material to make.
The utility model further improves and is: described high-voltage terminal is connecting bolt, and this connecting bolt connects high-voltage conducting wires.
The utility model further improves and is: low voltage terminal and the disconnector of unit of an arrester are bolted.
With respect to prior art, the beneficial effect the utlity model has is: the utility model adopts being connected in series of unit of an arrester and disconnector, is bolted and is connected into an integral body, can meet the requirement that railway traffic contact network breaks away from surge arrester failure; And, having adopted the D.C. resistance sheet at lightning arrester, its discharge capacity is large, residual voltage is low, has guaranteed stability, the fail safe of protection of arrester performance and long-time running.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described further;
The master that Fig. 1 is a kind of direct current arrester of the present utility model looks schematic diagram;
Fig. 2 be lightning arrester shown in Fig. 1 partly cut open schematic diagram.
In figure: 1, unit of an arrester; 2, disconnector; 3, high-voltage terminal; 4, low voltage terminal; 5, resistor disc; 6, insulation cushion; 7, metal flange; 8, spring.
Embodiment:
With reference to Fig. 1, Fig. 2, a kind of direct current arrester of the utility model, comprise a unit of an arrester 1 and the disconnector 2 be connected in series with bolt, and unit of an arrester 1 top connecting bolt is as the high-voltage terminal 3 of lightning arrester; One end of disconnector 2 is connected with the low voltage terminal 4 of unit of an arrester 1, and an other end is as the earth terminal of lightning arrester.
As shown in Figure 2, resistor disc 5, low voltage terminal 4 and insulation cushion 6 are arranged in unit of an arrester 1, resistor disc 5, low voltage terminal 4 and insulation cushion 6 series connection closed assemblies, compress by spring 8, is encapsulated in composite sheath; Composite sheath adopts integral die to make; Spring 8 is connected with high-voltage terminal 3; Unit of an arrester 1 bottom is connected with metal flange 7, for the installation of lightning arrester and fixing.
In the utility model lightning arrester, for unit of an arrester 1, its insulation cushion 6 adopts glass fiber and epoxy resin to make, and mainly plays insulating effect; Composite sheath adopts silicon rubber to make the full skirt shape.
Claims (7)
1. a direct current arrester, is characterized in that, comprises the unit of an arrester (1) and the disconnector (2) that mutually are connected in series; Unit of an arrester (1) is provided with high-voltage terminal (3) and low voltage terminal (4); The low voltage terminal (4) of unit of an arrester (1) is connected with disconnector (2).
2. a kind of direct current arrester according to claim 1, is characterized in that, the low voltage terminal (4) of described unit of an arrester (1) and ground insulation.
3. a kind of direct current arrester according to claim 1, is characterized in that, described unit of an arrester (1) also comprises composite sheath, resistor disc (5), insulation cushion (6), metal flange (7) and spring (8); High-voltage terminal (3) is arranged at the top of composite sheath, and metal flange (7) is arranged at the bottom of composite sheath; Resistor disc (5), low voltage terminal (4) and insulation cushion (6) closed assembly of connecting successively, compress and be encapsulated in composite sheath by spring (8); Spring (8) one ends connect high-voltage terminal (3), other end contact resistance sheet (5).
4. a kind of direct current arrester according to claim 3, is characterized in that, 1～5 described resistor discs (5) are installed in composite sheath; Described resistor disc (5) is zinc oxide resistance sheet.
5. a kind of direct current arrester according to claim 1, is characterized in that, described insulation cushion (6) adopts the expoxy glass wire material to make.
6. a kind of direct current arrester according to claim 1, is characterized in that, described high-voltage terminal (3) is connecting bolt, and this connecting bolt connects high-voltage conducting wires.
7. a kind of direct current arrester according to claim 1, is characterized in that, the low voltage terminal (4) of unit of an arrester (1) is bolted with disconnector (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220668638 CN202940080U (en) | 2012-12-05 | 2012-12-05 | Direct current arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220668638 CN202940080U (en) | 2012-12-05 | 2012-12-05 | Direct current arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940080U true CN202940080U (en) | 2013-05-15 |
Family
ID=48324305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220668638 Expired - Lifetime CN202940080U (en) | 2012-12-05 | 2012-12-05 | Direct current arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940080U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599799A (en) * | 2014-12-27 | 2015-05-06 | 中国西电电气股份有限公司 | High-capacity overvoltage limiter core |
| CN105427978A (en) * | 2015-12-31 | 2016-03-23 | 中国西电电气股份有限公司 | Compound polymeric housed metal oxide arrester |
| CN108879338A (en) * | 2018-08-02 | 2018-11-23 | 河北冀高电力器材开发有限公司 | Tempered glass arrester |
-
2012
- 2012-12-05 CN CN 201220668638 patent/CN202940080U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599799A (en) * | 2014-12-27 | 2015-05-06 | 中国西电电气股份有限公司 | High-capacity overvoltage limiter core |
| CN105427978A (en) * | 2015-12-31 | 2016-03-23 | 中国西电电气股份有限公司 | Compound polymeric housed metal oxide arrester |
| CN108879338A (en) * | 2018-08-02 | 2018-11-23 | 河北冀高电力器材开发有限公司 | Tempered glass arrester |
| CN108879338B (en) * | 2018-08-02 | 2023-08-15 | 河北冀高电力器材开发有限公司 | Toughened glass lightning arrester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |