CN203573809U - High-strength high-reliability integral current transformer - Google Patents
High-strength high-reliability integral current transformer Download PDFInfo
- Publication number
- CN203573809U CN203573809U CN201320755012.6U CN201320755012U CN203573809U CN 203573809 U CN203573809 U CN 203573809U CN 201320755012 U CN201320755012 U CN 201320755012U CN 203573809 U CN203573809 U CN 203573809U
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- flange
- current transformer
- aluminum pipe
- adpting flange
- strength high
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Abstract
The utility model discloses a high-strength high-reliability integral current transformer, and relates to the technical field of current transformers. An upper flange, a lower flange and an aluminum pipe are respectively connected through an upper connecting flange and a lower connecting flange via bolts to form a cylinder; a current transformer body is glued to the cylinder through epoxy resin. According to the high-strength high-reliability integral current transformer, the bending strength and the air tightness of a product can be improved, the manufacturing difficulty and cost are reduced, the high-strength high-reliability integral current transformer is suitable for volume production and is long in service life, and the manufacturing cycle is shortened.
Description
Technical field:
The utility model relates to current transformer technical field, is specifically related to a kind of high strength high reliability overall current instrument transformer.
Background technology:
Front conventional GIS supports a cylinder overall current instrument transformer manufacture method to have with (single-phase or three-phase): 1) instrument transformer is first inserted in to bonding aluminum pipe, adopts forged flange and butt welding aluminium tube to connect, and very harsh to the requirement of welding; 2) utilize long bolt, the upper lower flange of nut tension, by pulling force, compress aluminum pipe and seal member; 3) instrument transformer is packed into and support cylinder, adopt the method for long bolt, nut and band tension coil to fix.
But there is respectively following defect in existing manufacture method:
1) take forged flange welding: owing to being docking welding, cause weld seam to become the stressed weak spot of bending resistance, and docking welding makes product that deformation easily occur, concentricity there will be deviation, and during production, scrappage is higher; Simultaneously the Forging Technology of flange is complicated especially, the mould of forging product is required very high, causes that the processing cost of flange and fabrication cycle are very long is unfavorable for product batch production.
2) method of taking screw rod to assemble: have small gap because assembling is unavoidable, it will be extremely strict that closure size is required, and sealing effectiveness is unsatisfactory, can cause seal aging in the process of product long-time running, facilitates leakage accident.
3) instrument transformer takes the method utmost point that screw rod, band be strained and fixed on aluminum pipe built on the sand, and has increased Material Cost and flange difficulty of processing.
Therefore, existing manufacture method has defect separately, therefore be necessary to provide a kind of novel GIS with (single-phase or three-phase), to support the structure of cylinder overall current instrument transformer, intensity, the stability that can guarantee product bending resistance can guarantee again products air tightness, guarantee that long-term use does not damage risk, adapt to batch production, guarantee conforming product rate simultaneously.
Utility model content:
The purpose of this utility model is to provide a kind of high strength high reliability overall current instrument transformer, and it can improve product bending strength and products air tightness, has reduced again manufacture difficulty and cost, adapts to batch production, has shortened the manufacturing cycle, and long service life.
In order to solve the existing problem of background technology, the utility model is to adopt following technical scheme: it comprises upper flange, upper adpting flange, current transformer body, aluminum pipe, lower adpting flange, lower flange, upper flange, lower flange and aluminum pipe be respectively by the bolt cylindrical shell that is formed by connecting for upper adpting flange, lower adpting flange, current transformer body by adhering with epoxy resin on cylindrical shell.
Described upper flange, lower flange all adopts casting technique to produce.
Described upper flange, lower flange are connected with bolt by upper and lower adpting flange respectively with aluminum pipe, the stressed interaction in two ends, realized the fastening of flange and aluminum pipe parts, entirety is supported to the stressed uniform to three-phase aluminum pipe and each link of cylinder bending resistance, avoided the appearance of the stressed weak spot of bending resistance.
Described upper adpting flange adopts and is threaded with aluminum pipe, and designs escape and accurately locate, and lower adpting flange is universal structure, realizes upper and lower coordination installation screw position.
Described upper and lower support cylinder is for having prevented short-circuited conducting sleeve appearance, and aluminum pipe lower end does not contact mutually with lower flange, and connecting bolt does not contact mutually with lower adpting flange, adopts the insulating material that intensity is good, anti-aging, heat-proof corrosion resistant erosion performance is good to make isolated part.
The utlity model has following beneficial effect: can improve product bending strength and products air tightness, reduce again manufacture difficulty and cost, adapt to batch production, shorten the manufacturing cycle, and long service life.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model.
Embodiment:
Referring to Fig. 1, this embodiment adopts following technical scheme: it comprises upper flange 1, upper adpting flange 2, current transformer body 3, aluminum pipe 4, lower adpting flange 5, lower flange 6, upper flange 1, lower flange 6 and aluminum pipe 4 be respectively by upper adpting flange 2, the lower adpting flange 5 use bolts cylindrical shell that is formed by connecting, current transformer body 3 by adhering with epoxy resin on cylindrical shell.
Described upper flange 1, lower flange 6 all adopts casting technique to produce.
Described upper flange 1, lower flange 6 are connected with bolt by upper and lower adpting flange respectively with aluminum pipe 4, the stressed interaction in two ends, realized the fastening of flange and aluminum pipe parts, entirety is supported to the stressed uniform to three-phase aluminum pipe and each link of cylinder bending resistance, avoided the appearance of the stressed weak spot of bending resistance.
Described upper adpting flange 2 adopts and is threaded with aluminum pipe 4, and designs escape and accurately locate, and lower adpting flange 6 is universal structure, realizes upper and lower coordination installation screw position.
Described upper and lower support cylinder is for having prevented short-circuited conducting sleeve appearance, and aluminum pipe 4 lower ends do not contact mutually with lower flange 6, and connecting bolt does not contact mutually with lower adpting flange 5, adopts the insulating material that intensity is good, anti-aging, heat-proof corrosion resistant erosion performance is good to make isolated part.
The manufacturing step of this embodiment is as follows:
Step 1: lower adpting flange 5 is inserted in to aluminum pipe 4;
Step 2: then current transformer body 3 is inserted in to aluminum pipe 4;
Step 3: upper adpting flange 2 is screwed and is connected by screw thread with aluminum pipe 4;
Step 4: with bolt connection upper flange 1;
Step 5: current transformer body 3 is put into and requires position to use epoxy casting;
Step 6: regulate lower adpting flange 5, alignment lower flange 6 screwhole positions, connect lower flange with bolt;
Step 7: outer cover is installed.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (3)
1. a high strength high reliability overall current instrument transformer, it is characterized in that it comprises upper flange (1), upper adpting flange (2), current transformer body (3), aluminum pipe (4), lower adpting flange (5), lower flange (6), upper flange (1), lower flange (6) and aluminum pipe (4) be respectively by the bolt cylindrical shell that is formed by connecting for upper adpting flange (2), lower adpting flange (5), current transformer body (3) by adhering with epoxy resin on cylindrical shell.
2. a kind of high strength high reliability overall current instrument transformer according to claim 1, is characterized in that described upper adpting flange (2) adopts and is threaded with aluminum pipe (4).
3. a kind of high strength high reliability overall current instrument transformer according to claim 1, it is characterized in that described aluminum pipe (4) lower end does not contact mutually with lower flange (6), connecting bolt does not contact mutually with lower adpting flange (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755012.6U CN203573809U (en) | 2013-11-27 | 2013-11-27 | High-strength high-reliability integral current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755012.6U CN203573809U (en) | 2013-11-27 | 2013-11-27 | High-strength high-reliability integral current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203573809U true CN203573809U (en) | 2014-04-30 |
Family
ID=50541527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320755012.6U Expired - Fee Related CN203573809U (en) | 2013-11-27 | 2013-11-27 | High-strength high-reliability integral current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203573809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871176A (en) * | 2021-08-25 | 2021-12-31 | 河南平高电气股份有限公司 | External current transformer and GIS |
-
2013
- 2013-11-27 CN CN201320755012.6U patent/CN203573809U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871176A (en) * | 2021-08-25 | 2021-12-31 | 河南平高电气股份有限公司 | External current transformer and GIS |
| CN113871176B (en) * | 2021-08-25 | 2024-04-05 | 河南平高电气股份有限公司 | External current transformer and GIS |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20191127 |