CN103971974A - Double-insulator ice-melting grounding disconnector - Google Patents
Double-insulator ice-melting grounding disconnector Download PDFInfo
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- CN103971974A CN103971974A CN201410134360.0A CN201410134360A CN103971974A CN 103971974 A CN103971974 A CN 103971974A CN 201410134360 A CN201410134360 A CN 201410134360A CN 103971974 A CN103971974 A CN 103971974A
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- clamp
- ice
- base plate
- insulator
- fixed
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Abstract
The invention discloses a double-insulator ice-melting grounding disconnector which is characterized by comprising a base plate and a disconnector body. An insulator is disposed at each of the two ends of the base plate. A equipment wire clamp is disposed at the top of each insulator. A connecting support is fixed on one of the equipment wire clamp. A clamp plate is fixed on the other equipment wire clamp. A connecting support is hinged to one end of the disconnector body through a shaft pin. The other end of the disconnector body is matched with the clamp plate. A C-shaped fixing clamp is fixed on the base plate. A clamping bolt is disposed on the C-shaped fixing clamp. The base plate is fixedly mounted on an iron tower through the C-shaped fixing clamp and the clamping bolt. The double-insulator ice-melting grounding disconnector is reasonable in design, simple in structure, good in conductivity, excellent in corrosion resistance, and convenient to operate and maintain.
Description
Technical field
The present invention relates to a kind of Optical Fiber composite overhead Ground Wire (OPGW) reliable ground device, specifically, relate to a kind of double insulator ice-melt grounding switch for reliably insulating after line ice coating.
Background technology
China is one of comparatively serious country of powerline ice-covering.The harm of line ice coating is mainly manifested in the aspects such as the broken string of falling tower, insulator arc-over, conductor galloping, tripping operation, even may cause electrical network paralysis when serious, and national product and people's lives are caused to heavy losses.
But for a long time because technical merit is limited, OPGW optical cable can not insulate completely and between steel tower, therefore be difficult to realize ice-melt.At present still adopt the mode by tower ground connection, after icing, cause overhead ground wire generation slippage, cause line tripping to stop transport, and the serious time broken string of ice and snow, the situation of the faults such as tower of falling, the safe operation of electrical network can not get reliable guarantee.
Summary of the invention
The object of the invention is provides a kind of double insulator ice-melt grounding switch for above-mentioned weak point, it is the grounding switch for ice-melt, ensureing under the prerequisite of OPGW properties of optical fiber cable, utilize the closure state of grounding switch, realize the single-point grounding mode of circuit, thereby reduce the induced current loss that OPGW produces by tower ground connection; In the time being struck by lightning, by disconnecting link, large electric current is directed to shaft tower, play lightning protection function.Utilizing the open mode of grounding switch, make whole piece circuit in all insulation state, by transmission current or adopt short circuit current, is heat energy by electric energy conversion, reaches ice-melt heat balance and realizes ice-melt.
The present invention takes following technical scheme to realize:
A kind of double insulator ice-melt grounding switch, comprise base plate and disconnecting link, on the two ends of base plate, be respectively provided with an insulator, the top of two insulators is respectively provided with a device clamp, wherein on a device clamp, is fixed with connection bearing, on another device clamp, is fixed with clamping plate, described connection bearing is hinged by one end of pivot pin and disconnecting link, the other end of disconnecting link matches with clamping plate, is fixed with C type geometrical clamp on described base plate, on described C type geometrical clamp, is provided with fishbolt.
Further, described C type geometrical clamp is at least provided with 2.
When double insulator ice-melt grounding switch of the present invention uses, it is fixed on iron tower main material by C type geometrical clamp and fishbolt, OPGW optical cable passes through a wherein device clamp and is connected with double insulator ice-melt grounding switch, and another device clamp is connected with iron tower main material by circuit.Conventionally ensureing, under the prerequisite of OPGW properties of optical fiber cable, to utilize the closure state of disconnecting link to realize the single-point grounding mode of circuit, thereby reducing the induced current loss that OPGW produces by tower ground connection.In the time being struck by lightning, by disconnecting link, large electric current is directed to steel tower, play lightning protection function.In the time that electrical network has suffered serious line ice coating disaster, after being OPGW optical cable (Optical Fiber composite overhead Ground Wire) icing, utilize the open mode of disconnecting link, make whole piece circuit in all insulation state, by transmission current or employing short circuit current, be heat energy by electric energy conversion, OPGW optical cable (Optical Fiber composite overhead Ground Wire) bulk temperature is raise, melt the surperficial icing of OPGW optical cable (Optical Fiber composite overhead Ground Wire), reach ice-melt heat balance and realize ice-melt.
Double insulator ice-melt grounding switch of the present invention is reasonable in design, simple in structure, conducts electricity very well, and decay resistance is superior, operation, easy to maintenance.
Brief description of the drawings
Below with reference to accompanying drawing, the invention will be further described:
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the end view of Fig. 1.
Embodiment
With reference to attached Fig. 1 and 2, double insulator ice-melt grounding switch comprises base plate 5 and disconnecting link 1, on the two ends of base plate 5, be respectively provided with an insulator 4, respectively be provided with a device clamp 3 at the top of two insulators 4, on a device clamp 3, be fixed with therein and connect bearing 7, on another device clamp 3, be fixed with clamping plate 2, connect bearing 7 hinged with one end of disconnecting link 1 by pivot pin 8, the other end of disconnecting link 1 matches with clamping plate 2, on base plate 5, be fixed with two C type geometrical clamps 6, on each C type geometrical clamp 6, be provided with fishbolt 9, base plate 5 is by C type geometrical clamp 6, fishbolt 9 is fixed in steel towers.
Claims (2)
1. a double insulator ice-melt grounding switch, it is characterized in that: comprise base plate and disconnecting link, on the two ends of base plate, be respectively provided with an insulator, the top of two insulators is respectively provided with a device clamp, wherein on a device clamp, is fixed with connection bearing, on another device clamp, is fixed with clamping plate, described connection bearing is hinged by one end of pivot pin and disconnecting link, the other end of disconnecting link matches with clamping plate, is fixed with C type geometrical clamp on described base plate, on described C type geometrical clamp, is provided with fishbolt.
2. double insulator ice-melt grounding switch according to claim 1, is characterized in that: described C type geometrical clamp is at least provided with 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134360.0A CN103971974A (en) | 2014-04-04 | 2014-04-04 | Double-insulator ice-melting grounding disconnector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134360.0A CN103971974A (en) | 2014-04-04 | 2014-04-04 | Double-insulator ice-melting grounding disconnector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103971974A true CN103971974A (en) | 2014-08-06 |
Family
ID=51241346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410134360.0A Pending CN103971974A (en) | 2014-04-04 | 2014-04-04 | Double-insulator ice-melting grounding disconnector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103971974A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182488A (en) * | 2015-09-29 | 2015-12-23 | 中国电力科学研究院 | Insulated optical cable connection box for power transmission tower |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5382764A (en) * | 1992-05-11 | 1995-01-17 | Gec Alsthom Energie, Inc. | Vertically-opening section swtich having a rocking column |
| CN201616375U (en) * | 2010-02-05 | 2010-10-27 | 丹东电力设备厂 | Outdoor high-voltage disconnecting switch |
| CN102780193A (en) * | 2012-07-06 | 2012-11-14 | 广东电网公司电力科学研究院 | Current ice-melting method for overhead ground wires of electric transmission line |
| CN202749782U (en) * | 2012-05-28 | 2013-02-20 | 南方电网科学研究院有限责任公司 | Power-transmission-line ice melting system implemented by using switching operations in whole process |
| CN203895330U (en) * | 2014-04-04 | 2014-10-22 | 国家电网公司 | Double insulator ice melting grounding knife switch |
-
2014
- 2014-04-04 CN CN201410134360.0A patent/CN103971974A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5382764A (en) * | 1992-05-11 | 1995-01-17 | Gec Alsthom Energie, Inc. | Vertically-opening section swtich having a rocking column |
| CN201616375U (en) * | 2010-02-05 | 2010-10-27 | 丹东电力设备厂 | Outdoor high-voltage disconnecting switch |
| CN202749782U (en) * | 2012-05-28 | 2013-02-20 | 南方电网科学研究院有限责任公司 | Power-transmission-line ice melting system implemented by using switching operations in whole process |
| CN102780193A (en) * | 2012-07-06 | 2012-11-14 | 广东电网公司电力科学研究院 | Current ice-melting method for overhead ground wires of electric transmission line |
| CN203895330U (en) * | 2014-04-04 | 2014-10-22 | 国家电网公司 | Double insulator ice melting grounding knife switch |
Non-Patent Citations (1)
| Title |
|---|
| 贾鸣等: "具有直流融冰功能的光纤复合架空地线研制", 《电气应用》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182488A (en) * | 2015-09-29 | 2015-12-23 | 中国电力科学研究院 | Insulated optical cable connection box for power transmission tower |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140806 |