CN201629257U - Tank-type circuit breaker - Google Patents
Tank-type circuit breaker Download PDFInfo
- Publication number
- CN201629257U CN201629257U CN2009201463611U CN200920146361U CN201629257U CN 201629257 U CN201629257 U CN 201629257U CN 2009201463611 U CN2009201463611 U CN 2009201463611U CN 200920146361 U CN200920146361 U CN 200920146361U CN 201629257 U CN201629257 U CN 201629257U
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- CN
- China
- Prior art keywords
- sleeve
- sleeve pipe
- conductive rod
- conducting rod
- level
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- Expired - Fee Related
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a tank-type circuit breaker, which comprises a wiring terminal used for conducting current, an arc extinguish chamber, a sleeve assembly, a shield and a conductive rod. The upper end and the lower end of the sleeve assembly are respectively connected with the wiring terminal and the arc extinguish chamber; the sleeve assembly comprises a sleeve adaptable to IV-level polluted insulation; the shield is sleeved with the sleeve and used for improving electric field distribution at the inner lower end of the sleeve; the top end of the conductive rod is connected with the wiring terminal and the top end of the sleeve; the upper portion of the conductive rod is positioned inside the sleeve; the middle of the conductive rod is positioned in the sleeve and the shield; and the lower portion of the conductive rod extends out of the sleeve to be connected with the arc extinguish chamber to form a current passage. The tank-type circuit breaker meets use requirements in an IV-level polluted area, and optimizes electric field distribution to obtain improvement of insulation strength.
Description
Technical field
The utility model relates to potting breaker, specifically, relates to the thimble assembly of potting breaker.
Background technology
Potting breaker is a kind of outdoor high voltage circuit breaker; be used to exchange the three-phase electrical power system of 50Hz, voltage 110～800kV; mainly act as by disjunction, close and close load current, overload current and short circuit current, thereby realize control and protection electric equipments such as power transmission and transformation line, capacitor group and transformers.It is one of key equipment in the electric power system.
Potting breaker is divided into operating mechanism, control cabinet, support, arc control device, several parts compositions of thimble assembly, and wherein operating mechanism, arc control device and thimble assembly are its core component, need mutual supporting use.Wherein thimble assembly is made of sleeve pipe, conducting rod and radome, is the important component part that constitutes current channel, the external insulation level of major decision circuit breaker.
High-tension current equipment outer insulation gradation for surface pollution GB/T 5582-93 (State Standard of the People's Republic of China) has stipulated gradation for surface pollution O, I, II, III, IV, referring to table 1.
Nominal is creepage divides value of series mm/kV than distance
Table 1
Existing potting breaker is global design, but its thimble assembly only can be applicable to the filthy area of III level, can't adapt to the needs that use in the filthy area of IV level.Specifically, existing sleeve pipe length overall only has 1800mm, its external insulation poor-performing, and anti-pollution flashover ability is relatively poor, is not suitable for the bigger area of pollution level and uses.And satisfy the sleeve pipe length overall 2570mm of IV level filth, when increasing total length, increased dry arcing distance, i.e. the shortest air distance between the insulating surfaces of sleeve pipe two ends on the one hand; By the layout of full skirt, also increased creepage distance simultaneously, promptly between two current-carrying parts (being flange), electric arc is along the short line of insulator surface development.
According to the requirement of high-tension current equipment outer insulation gradation for surface pollution GB/T 5582-93 to equipment, creepage distance (mm) is determined than distance (mm/kV) and electric pressure (kV) by creepage; Creepage ratio generally is divided into four grades of I～IV apart from on-site gradation for surface pollution decision is installed by equipment, and gradation for surface pollution is high more, and corresponding is creepage bigger more than distance, so for a specific electric pressure (as 220kV), just needs bigger creepage distance.And reach at gradation for surface pollution under the situation of IV, existing sleeve pipe is just inapplicable, must improve sleeve pipe.
The utility model content
Improved sleeve pipe is compared with existing sleeve pipe, and variation has all taken place for its size, interior shape, and it must exert an influence to inner Electric Field Distribution so.The sleeve pipe that is applicable to the filth of IV level is used, but does not have supporting with it conducting rod and radome.
Based on above reason, the purpose of this utility model provide a cover can with the conducting rod and the radome of the filthy sleeve kit of IV level, common forming sleeves assembly is used on the potting breaker optimizing Electric Field Distribution simultaneously to obtain the improvement of dielectric strength to satisfy the instructions for use in the filthy area of IV level.
According to an aspect of the present invention, provide a kind of potting breaker, comprising: binding post is used for conduction current; Arc control device; Thimble assembly, its top and bottom are connected with described arc control device with described binding post respectively; Described thimble assembly comprises: sleeve pipe is suitable for IV level defilement and insulation; With the radome of described sleeve pipe socket, be used to improve the Electric Field Distribution of inside, described sleeve pipe lower end; The conducting rod that the top is connected with described binding post, its top also are connected with the top of described sleeve pipe, its top is positioned at described sleeve pipe, wherein portion is positioned at described sleeve pipe and described radome and its underpart and stretches out described sleeve pipe and be connected so that form current channel with described arc control device.
This potting breaker has compared with prior art improved external insulation performance and anti-pollution flashover ability.
Description of drawings
Fig. 1 illustrates potting breaker according to an embodiment of the invention;
Fig. 2 illustrates the thimble assembly of potting breaker according to an embodiment of the invention;
Fig. 3 illustrates existing conducting rod and the comparison of conducting rod length according to an embodiment of the invention; With
Fig. 4 illustrates the fingertip of conducting rod and arc control device according to an embodiment of the invention.
Embodiment
Fig. 1 illustrates potting breaker according to an embodiment of the invention.Potting breaker 10 comprises: the thimble assembly 13 that the binding post 11, arc control device 12, top and bottom that is used for conduction current I is connected with arc control device 12 with binding post 11 respectively.The arc control device 12 of potting breaker 10 also are connected with operating mechanism 14, are used for from peripheral operation potting breaker 10.Potting breaker 10 is supported by support 15.
Fig. 2 illustrates the thimble assembly of potting breaker according to an embodiment of the invention.Thimble assembly 13 comprises: be suitable for IV level defilement and insulation sleeve pipe 20, be used to improve the Electric Field Distribution of inside, described sleeve pipe lower end and the conducting rod 22 that is connected with binding post 11 with radome 21 and top in being socketed in sleeve pipe 20.A plurality of full skirt 24 annular sleeves 20 are suitable for IV level defilement and insulation creepage distance, and sleeve pipe 20 is suitable for the dry arcing distance of IV level defilement and insulation.Preferably, sleeve pipe 20 is connected by flange 23 with radome 21.The top of conducting rod 22 also is connected with the top of sleeve pipe 20, the top of conducting rod 22 is positioned at sleeve pipe 20, the middle part of conducting rod 22 is positioned at sleeve pipe 20 and radome 21, and the bottom of conducting rod 22 is stretched out sleeve pipe 20 and is connected so that form current channel with arc control device 12.
Fig. 3 illustrates existing conducting rod and the comparison of conducting rod length according to an embodiment of the invention.The length of existing conducting rod 30 is shorter, 2657mm for example, and the length of conducting rod 22 of the present invention is lengthened out, such as being lengthened to 3412mm.Length by changing conducting rod to be to adapt to the change of sleeve pipe of the present invention, specifically, and lengthening.
The surface flatness of existing conducting rod is lower, and conducting rod of the present invention has improved surface flatness.By changing the surface flatness of conducting rod, reduce conducting rod electric field distortion on every side.
Fig. 4 illustrates the fingertip and local amplification the thereof of conducting rod and arc control device according to an embodiment of the invention.The lower end of conducting rod 22 covers silver coating 50, and inserts in the fingertip 51 of arc control device so that contact 12 with arc control device.Wherein, silver coating 50 is represented by grid line.Thus, reduce the contact resistance that described conducting rod is connected with described arc control device.In order to connect, available screw 51 connects the lower end of conducting rod 22 and the fingertip 51 of arc control device.
Although the present invention has been carried out above-mentioned diagram and description with reference to specific implementations of the present invention, but those skilled in the art are to be understood that, do not breaking away under the situation of the spirit and scope of the present invention that limit by appended claims, can carry out various modifications on form and the details the present invention.
Claims (2)
1. a potting breaker (10) is characterized in that this equipment comprises:
Binding post (11);
Arc control device (12);
Thimble assembly (13), its top and bottom are connected with described arc control device (12) with described binding post (11) respectively;
Described thimble assembly (13) comprising:
Sleeve pipe (20) is suitable for IV level defilement and insulation;
Radome (21) is socketed in the described sleeve pipe (20);
The conducting rod (22) that the top is connected with described binding post (11), its top also are connected with the top of described sleeve pipe (20), its top is positioned at described sleeve pipe (20), wherein portion is positioned at described sleeve pipe (20) and described radome (21) and its underpart and stretches out described sleeve pipe (20) and be connected with described arc control device (12).
2. potting breaker according to claim 1 (10) is characterized in that wherein said sleeve pipe (20) comprising:
A plurality of full skirts (24) are suitable for IV level defilement and insulation creepage distance;
Wherein said sleeve pipe (20) is suitable for the dry arcing distance of IV level defilement and insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201463611U CN201629257U (en) | 2009-03-17 | 2009-03-17 | Tank-type circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201463611U CN201629257U (en) | 2009-03-17 | 2009-03-17 | Tank-type circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201629257U true CN201629257U (en) | 2010-11-10 |
Family
ID=43060655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201463611U Expired - Fee Related CN201629257U (en) | 2009-03-17 | 2009-03-17 | Tank-type circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201629257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110690045A (en) * | 2019-10-09 | 2020-01-14 | 周生远 | Oil-free self-healing high-voltage parallel capacitor |
-
2009
- 2009-03-17 CN CN2009201463611U patent/CN201629257U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110690045A (en) * | 2019-10-09 | 2020-01-14 | 周生远 | Oil-free self-healing high-voltage parallel capacitor |
| CN110690045B (en) * | 2019-10-09 | 2021-09-03 | 广西电网有限责任公司玉林供电局 | Oil-free self-healing high-voltage parallel capacitor |
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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: 20101110 Termination date: 20130317 |