CN202210463U - Indoor bus-type current transformer with fixing device - Google Patents
Indoor bus-type current transformer with fixing device Download PDFInfo
- Publication number
- CN202210463U CN202210463U CN2011202792581U CN201120279258U CN202210463U CN 202210463 U CN202210463 U CN 202210463U CN 2011202792581 U CN2011202792581 U CN 2011202792581U CN 201120279258 U CN201120279258 U CN 201120279258U CN 202210463 U CN202210463 U CN 202210463U
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- CN
- China
- Prior art keywords
- secondary winding
- low pressure
- current transformer
- type current
- pressure secondary
- Prior art date
- 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 provides an indoor bus-type current transformer with fixing device, which is capable of fixing a primary bus bar and composed of five parts, including an insulating protector, a low-voltage secondary winding, a shielding device, a low-voltage secondary winding fixing device and a mounting soleplate, wherein the upper part of the insulating protector is cast in a cylindrical shape just as the low-voltage secondary winding therein, the lower part is cast into a square support base; the shielding device composed of a shielding screen and two supporting blocks is arranged on the inner cavity wall of a hollow bus bar; four legs for adjusting position and fixing the low-voltage secondary winding are arranged on the low-voltage secondary winding fixing device; and a soleplate is arranged at the bottom of the fixing device.
Description
Technical field
The utility model belongs to the bus-type high voltage power transformation equipment in the indoor special electric power system, is the crucial signal transmission equipment of 10kV electric power system electric energy metrical and relaying protection.
Background technology
At present, common indoor bus-type current transformer is installed for flange form mostly, and mounting means requires must have in the high-tension switch cabinet dividing plate of certain intensity, requires the cabinet size bigger than normal, installs inconvenient; And the connected mode of common bus-type current transformer primary shielding is that flexible cord connects, and can not play a supporting role to a busbar; Gradation for surface pollution is low, and electric property is stable inadequately.
Summary of the invention
In order to improve existing indoor bus-type current transformer inconvenience is installed, a busbar is not effectively supported, and gradation for surface pollution is low; The unsettled deficiency of electric property, the utility model provide a kind of indoor band fixture bus-type current transformer, and it is installed for column support type; Not only can fix busbar one time, and accomplished along the face creepage distance big, full-shield; Equal field intensity, electric property is stable.
The utility model solves the technical scheme that its technical problem adopted: it is made up of insulating protector, low pressure secondary winding, screening arrangement, low pressure secondary winding fixture, installation base plate five major parts.Insulating protector is that the indoor epoxy resin once-cast of import forms; The imitative inner low pressure secondary winding shape in its top pours into cylindrical shape; On two anchor rings of pour mass, be provided with the circular chase of twice; The cross section takes the shape of the letter U, with increase between high pressure and the low pressure along the face creepage distance, stain resistance is strong; The bottom of insulating protector pours into foursquare pedestal structure.On the internal chamber wall of bus-type instrument transformer punching busbar, a screening arrangement is set, it is made up of gauze screen and two back-up blocks, and gauze screen adopts the manufacturing of nickel plating copper mesh; Make two ends band double horn mouth tubular; In it is encapsulated in the low pressure secondary winding fully, avoided high pressure fully, respectively be drilled with the location hole of a Φ 9 on two back-up blocks low pressure secondary winding discharge; Both play the effect of fixing internal gauze screen, played fixing busbar effect again; Low pressure secondary winding fixture is made up of an arc pallet and four supporting legs that have inserts between low pressure secondary winding and mounting seat, and arc pallet plays the effect that holds up secondary winding; Supporting leg is manufactured by the screw rod that can transpose and is formed; It can be adjusted and the fixing position of low pressure secondary winding, makes the insulation distance of each several part reach perfect condition, and field intensity is even; Local discharging level reaches under the voltage of 1.2Um/ √ 3, less than 5pC; The installation base plate is equipped with in the bottom of product, base plate is installed is fixed together through four inserts on the low pressure secondary winding fixture, the setting of base plate is installed is installed by traditional flange form installation becoming column support type, and is simple, convenient.
The beneficial effect of the utility model is, two back-up blocks of the utility model can support and fix busbar one time, product along and creepage distance is big, durability against pollution is strong, local discharging level reaches under the voltage of 1.2Um/ √ 3, less than 5pC, installs simple, convenient.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the front view of the utility model.
Fig. 2 is the end view of the utility model.
1. insulating protectors in the drawings, 2. low pressure secondary winding, 3. gauze screen, 4. back-up block, 5. low pressure secondary line group fixture, 6. supporting leg is 7. installed base plate, 8. chase, 9. secondary connection terminal.
Embodiment
In Fig. 1, Fig. 2; Insulating protector (1) forms with indoor import poured with epoxy resin; Imitative inner low pressure secondary winding (2) shape in top pours into cylindrical shape; On columnar two anchor rings, be provided with the circular chase (8) of twice, the cross section takes the shape of the letter U, and the bottom of insulating protector (1) pours into foursquare pedestal structure.One screening arrangement is set on the internal chamber wall of the utility model punching busbar, and it is made up of gauze screen (3) and two back-up blocks (4), and gauze screen is made with the nickel plating copper mesh; Make the bell-mouthed tubular of two ends band; In it is encapsulated in low pressure secondary winding (2) fully, avoided high pressure fully, respectively be drilled with the location hole of a Φ 9 on two back-up blocks (4) low pressure secondary winding (2) discharge; Both play the effect of fixing internal gauze screen, played fixing busbar effect again; Low pressure secondary winding fixture (5) is positioned at low pressure secondary winding (2) and installs between the base plate (7); It is made up of an arc pallet and four supporting legs (6) that have inserts, and arc pallet plays the effect that holds up secondary winding, and supporting leg (6) is manufactured by the screw rod that can transpose and formed; It can be adjusted and the fixing position of low pressure secondary winding (2); Make the insulation distance of each several part reach perfect condition, field intensity is even, and local discharging level reaches under the voltage of 1.2Um/ √ 3; Less than 5pC, low pressure secondary winding (2) is drawn out to secondary connection terminal (9) through lead-in wire; Base plate (7) is installed is fixed together, the setting of base plate is installed installs by traditional flange form installation becoming column support type through four inserts on the low pressure secondary winding fixture.
Claims (4)
1. indoor band fixture bus-type current transformer; It is made up of insulating protector, low pressure secondary winding, screening arrangement, low pressure secondary winding fixture, installation base plate five major parts; It is characterized in that: the imitative inner low pressure secondary winding shape in insulating protector top pours into cylindrical shape, and the bottom pours into square bearing; Be provided with one on the internal chamber wall of punching busbar by gauze screen and two screening arrangements that back-up block is made; Four positioning and the fixing supporting leg of low pressure secondary winding are set on the low pressure secondary winding fixture, and the installation base plate is equipped with in the bottom.
2. indoor band fixture bus-type current transformer according to claim 1 is characterized in that: be provided with the circular chase of twice on two anchor rings of pour mass, the cross section takes the shape of the letter U.
3. indoor band fixture bus-type current transformer according to claim 1 is characterized in that: gauze screen is made two ends band double horn mouth tubular.
4. indoor band fixture bus-type current transformer according to claim 1, it is characterized in that: back-up block has two, is drilled with the location hole of a Φ 9 on each back-up block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202792581U CN202210463U (en) | 2011-07-28 | 2011-07-28 | Indoor bus-type current transformer with fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202792581U CN202210463U (en) | 2011-07-28 | 2011-07-28 | Indoor bus-type current transformer with fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202210463U true CN202210463U (en) | 2012-05-02 |
Family
ID=45990006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202792581U Expired - Fee Related CN202210463U (en) | 2011-07-28 | 2011-07-28 | Indoor bus-type current transformer with fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202210463U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486909A (en) * | 2015-12-04 | 2016-04-13 | 国家电网公司 | Switch cabinet and voltage transformer thereof having busbar support function |
-
2011
- 2011-07-28 CN CN2011202792581U patent/CN202210463U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486909A (en) * | 2015-12-04 | 2016-04-13 | 国家电网公司 | Switch cabinet and voltage transformer thereof having busbar support function |
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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 |
Granted publication date: 20120502 Termination date: 20200728 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |