CN202758729U - Single-phase voltage transformer for intelligent user switch for dividing - Google Patents
Single-phase voltage transformer for intelligent user switch for dividing Download PDFInfo
- Publication number
- CN202758729U CN202758729U CN 201220407056 CN201220407056U CN202758729U CN 202758729 U CN202758729 U CN 202758729U CN 201220407056 CN201220407056 CN 201220407056 CN 201220407056 U CN201220407056 U CN 201220407056U CN 202758729 U CN202758729 U CN 202758729U
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- China
- Prior art keywords
- winding
- phase potential
- intelligent subscriber
- high voltage
- demarcation switch
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- 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 electric power system high voltage measurement and a protection device, in particular to a single-phase voltage transformer for an intelligent user switch for dividing. A secondary winding and a first winding are concentrically wound on an insulating skeleton which is installed on a cylinder-shaped iron core in sleeved mode. The secondary winding is connected with a secondary connection terminal. The first winding is connected with a first connection terminal. An integrated structure molded by vacuum pouring epoxy resin is adopted. A low voltage shielding device is wrapped and sealed on the outer portion of the first winding to separate a high voltage insulator from a low voltage insulator, wherein the high voltage insulator and the low voltage insulator are penetrated through each other and combined into a whole. The single-phase voltage transformer for the intelligent user switch for dividing has the advantages of being small in size, convenient to install, reliable in insulation, large in creep distance, even in electric field and large in capability.
Description
Technical field
The utility model relates to electric power system high-tension measurement and protective device, specifically a kind of intelligent subscriber demarcation switch single-phase potential transformer.
Background technology
The intelligent subscriber demarcation switch is the capital equipment in the automation distribution network of city, be installed on distribution line and user's boundary position, can open the Fault Isolation that occurs in user circle, prevent from the outdoor high-voltage switch of fault pervasion to the system line finally improved power supply reliability and power supply quality.Electromagnetic potential transformer is installed on switch inside, mainly as the control power supply use of switch controlling device.Because this type switch be with SF6 gas as arc extinguishing and dielectric, the inner space is less.And existing voltage transformer size is larger, the very large inner space that accounted for tool, not only very difficult by loading, and affected the insulation property of other operating mechanism and arc-control device, serviceability and the life-span that might reduce global switch in the long-term use procedure.The design's product is instant, and to exist performance deficiency to design a kind of volume little according at present novel switched, new generation product easy for installation, that insulation is reliable, creepage distance is large, electric field is stable, capacious further improves the designing and manufacturing level of intelligent subscriber demarcation switch.
The utility model content
In order to solve the above-mentioned problems in the prior art, the utility model provides a kind of New single-phase voltage transformer that the casting insulated volume that forms of epoxide resin vacuum is little, easy for installation, insulation is reliable, creepage distance is large, electric field is stable, intelligent subscriber demarcation switch capacious is used that adopts.
The technical scheme that the utility model adopts for achieving the above object is: intelligent subscriber demarcation switch single-phase potential transformer, secondary winding is concentric on an insulation framework with a winding, this insulation framework is sleeved on the iron core of cylindricality, secondary winding connecting secondary binding post, one time winding connects the primary connection terminal, adopt the epoxide resin vacuum cast cured explosive to be integral the formula structure, the low voltage screen shielding apparatus is encapsulated in the winding outside one time, keeps apart to run through high voltage insulator and the low-voltage insulation body of joining together.
Described high voltage insulator is the cylindrical shape of traverse.
Described low-voltage insulation body is the rectangular shape of traverse.
Two bar shaped mounting bases are fixed in described low-voltage insulation body bottom, and mounting base is positioned at both sides.
Described primary connection terminal is two, admittedly is encapsulated in respectively centre and the lateral location of high voltage insulator top.
The centre position of the high voltage insulator top of a described solid front cover primary connection terminal is the cylinder table shape with the indent cluster parachute.
The described below that is positioned at the primary connection terminal of high voltage insulator lateral location is provided with attached full skirt.
Described low voltage screen shielding apparatus links to each other with the mounting base metal by embedded nut.
Described low-voltage insulation body top is provided with the bar shaped full skirt, and the both sides, bottom are provided with the indent handle near the mounting base place.
The utlity model has following advantage:
1, volume is little, easy for installation: the curing of whole employing poured with epoxy resin forms integral structure, high voltage insulator is that the low-voltage insulation body of the cylindrical shape of traverse and rectangular shape runs through and joins together, the contoured design structure not only makes product size less, and guarantees to have uniform insulating barrier around the product device body coil; The indent handle design, convenient product reliably controlling when installing and carry.
2, insulation is reliable, creepage distance is large: the insulated column of primary connection terminal is the cylinder table shape with the indent cluster parachute, with attached full skirt design, effectively strengthen an alternate terminal of surface creepage distance and the side insulation distance over the ground of terminal of product, apply to integral product in the SF6 insulated switch, have preferably insulation level.
3, electric field is even, capacity is large: all shielding is in inside with high-tension coil for the design of low voltage screen shielding apparatus, and the inside and outside electric field is more even, can not have the electric discharge phenomena of electric field inequality during long-time running; Inner core adopts the high-quality silicon steel sheet manufacturing, and design capacity is larger, satisfies supporting the use of the various control device of switch fully.
Description of drawings
Fig. 1 is the utility model external structure front view;
Fig. 2 is the utility model external structure end view;
Fig. 3 has the new internal structural representation for this reality;
Among the figure: 1, iron core; 2, winding; 3, secondary winding; 4, primary connection terminal; 5, secondary wiring terminals; 6, high voltage insulator; 7, low-voltage insulation body; 8, low voltage screen shielding apparatus; 9, mounting base; 10, indent full skirt; 11, attached full skirt; 12, bar shaped full skirt; 13, indent handle.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
As Figure 1-3, product secondary winding 3 and winding 2 are concentric to be contained on iron core 1 post around an insulation framework upper rear set, through forming the voltage device body with primary connection terminal 4 and secondary wiring terminals 5 after insulation and the buffering wrapping, utilize the iron core fixed clip that the device body is fixed in the casting mold, utilize embedded nut that low voltage screen shielding apparatus 8 is fixed in the mould, connect again a secondary wiring terminals, adjust insulation distance, adopt the epoxide resin vacuum cast cured explosive to form.Become: high voltage insulator 6 is the cylindrical shape of traverse thereupon, runs through with the low-voltage insulation body 7 of rectangular shape and joins together.The squared design structure not only makes product size less, and guarantees to have uniform insulating barrier around the product device body coil.Two bar shaped mounting bases 9 are fixed on low-voltage insulation body 7 bottoms, and light and handy structural design also has enough mechanical erection intensity; 4 designs of two primary connection terminals in the middle of laying respectively at and lateral location, guarantee the electric clearance under certain gas-insulated distance above high voltage insulator 6, can be respectively connect with the switch internal high pressure smooth interface that goes between; Gu the insulated column of front cover time binding post 4 is the cylinder table shape with indent cluster parachute 10, the below that is positioned at side primary connection terminal 4 is provided with attached full skirt 11, effectively strengthens product primary connection terminal 4 alternate surface creepage distance and side primary connection terminal 4 insulation distance over the ground; Low voltage screen shielding apparatus 8 is encapsulated in winding 2 outsides one time, effectively high-tension coil is all shielded in inside, and adopt embedded nut and mounting base 9 Metal Phases to be linked into the low voltage electric field current potential, can not exist during charging operation for a long time the electric field inequality electric discharge phenomena and and ageing of insulation; Low-voltage insulation body 7 tops are provided with bar shaped full skirt 12, and the design main purpose is for terminal insulation distance over the ground in the middle of strengthening; Both sides, its underpart are provided with indent handle 13 near mounting base 9 places, convenient product reliably controlling when installing and carry.
When product is installed and used, before inner other parts of switch are not packed into, utilize the instrument transformer mounting panel that product is fixed on design attitude, again high-voltage busbar of a terminal and switch being carried out electricapparatus connects, carry out at last secondary lead wires cable electrical mechanical attachment, after inner other parts of switch install, at last the air chamber of single unit system carried out the ending work such as pressure testing, the inflation of SF6 insulating gas, namely the integral installation allotment of labor finishes.
Claims (9)
1. intelligent subscriber demarcation switch single-phase potential transformer, secondary winding (3) is concentric on an insulation framework with a winding (2), this insulation framework is sleeved on the iron core (1) of cylindricality, secondary winding (3) connecting secondary binding post (5), a winding (2) connects primary connection terminal (4), adopt the epoxide resin vacuum cast cured explosive to be integral the formula structure, it is characterized in that, low voltage screen shielding apparatus (8) is encapsulated in a winding (2) outside, keeps apart to run through high voltage insulator (6) and the low-voltage insulation body (7) of joining together.
2. intelligent subscriber demarcation switch single-phase potential transformer according to claim 1 is characterized in that, described high voltage insulator (6) is the cylindrical shape of traverse.
3. intelligent subscriber demarcation switch single-phase potential transformer according to claim 1 is characterized in that, described low-voltage insulation body (7) is the rectangular shape of traverse.
4. according to claim 1 or 3 described intelligent subscriber demarcation switch single-phase potential transformers, it is characterized in that, two bar shaped mounting bases (9) are fixed in described low-voltage insulation body (7) bottom, and mounting base (9) is positioned at both sides.
5. intelligent subscriber demarcation switch single-phase potential transformer according to claim 1 is characterized in that, described primary connection terminal (4) is two, admittedly is encapsulated in respectively centre and the lateral location of high voltage insulator (6) top.
6. intelligent subscriber demarcation switch single-phase potential transformer according to claim 5 is characterized in that, the centre position of high voltage insulator (6) top of a described solid front cover primary connection terminal (4) is the cylinder table shape with indent cluster parachute (10).
7. intelligent subscriber demarcation switch single-phase potential transformer according to claim 5 is characterized in that, the described below that is positioned at the primary connection terminal (4) of high voltage insulator (6) lateral location is provided with attached full skirt (11).
8. intelligent subscriber demarcation switch single-phase potential transformer according to claim 1 is characterized in that, described low voltage screen shielding apparatus (8) links to each other with mounting base (9) metal by embedded nut.
9. intelligent subscriber demarcation switch single-phase potential transformer according to claim 1 is characterized in that, described low-voltage insulation body (7) top is provided with bar shaped full skirt (12), and indent handle (13) is located to be provided with near mounting base (9) in the both sides, bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220407056 CN202758729U (en) | 2012-08-16 | 2012-08-16 | Single-phase voltage transformer for intelligent user switch for dividing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220407056 CN202758729U (en) | 2012-08-16 | 2012-08-16 | Single-phase voltage transformer for intelligent user switch for dividing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202758729U true CN202758729U (en) | 2013-02-27 |
Family
ID=47737897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220407056 Expired - Fee Related CN202758729U (en) | 2012-08-16 | 2012-08-16 | Single-phase voltage transformer for intelligent user switch for dividing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202758729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424817A (en) * | 2017-08-01 | 2017-12-01 | 正泰电气股份有限公司 | A kind of threephase potential transformer high-pressure side connection method and device |
-
2012
- 2012-08-16 CN CN 201220407056 patent/CN202758729U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424817A (en) * | 2017-08-01 | 2017-12-01 | 正泰电气股份有限公司 | A kind of threephase potential transformer high-pressure side connection method and device |
| CN107424817B (en) * | 2017-08-01 | 2023-06-13 | 正泰电气股份有限公司 | Method and device for connecting high-voltage ends of three-phase voltage transformer |
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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: 20130227 Termination date: 20200816 |