CN201927472U - Voltage transformer with fuse for gas insulated cabinet - Google Patents
Voltage transformer with fuse for gas insulated cabinet Download PDFInfo
- Publication number
- CN201927472U CN201927472U CN2010206919500U CN201020691950U CN201927472U CN 201927472 U CN201927472 U CN 201927472U CN 2010206919500 U CN2010206919500 U CN 2010206919500U CN 201020691950 U CN201020691950 U CN 201020691950U CN 201927472 U CN201927472 U CN 201927472U
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- Prior art keywords
- fuse
- voltage transformer
- cable
- voltage
- insulated
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- Expired - Fee Related
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Abstract
The utility model relates to a voltage transformer with a fuse for a gas insulated cabinet. The voltage transformer comprises an iron core, a primary winding, a secondary winding, a primary high-voltage insulated column, a fuse casing, a cable plug, a cable bulkhead, the high voltage fuse and a metal housing, wherein, the iron core, the primary winding, the secondary winding, the primary high-voltage insulated column and the fuse casing are cast to form an integral structure by adopting epoxy resin material; the metal housing is encapsulated at the outer part of the integral structure; a sealing opening of the fuse casing is sealed in an insulated manner through the cable plug; and the cable bulkhead is sleeved at the outer part of the primary high-voltage insulated column. The voltage transformer has the advantages of small volume, uniform electric field and long maintenance period, is mounted flexibly, performs a fuse protection function, and can be widely suitable for various environments.
Description
Technical field
The utility model relates to the electric power system high-pressure measurement mechanism, and specifically a kind of gas-insulated cabinet is with being with the fuse voltage transformer.
Background technology
Voltage transformer is a measuring voltage in electric power system or the electric control system; the device of electric energy; in recent years; with the sulfur hexafluoride gas is the metal enclosed switchgear (being called for short C-GIS inflation cabinet) of dielectric; because its volume that has is little; the height handling safety; be applicable to various high height above sea level; advances such as various environment such as high humility; generally promoted the use; supporting with it voltage transformer is the gas-insulated metal shell type voltage transformer of development and Design in recent years; according to designing requirement; being used for the high-tension fuse that a current-limiting protection of instrument transformer uses is absolute version; adopt the fuse sheath directly to be contained in the switch cubicle air chamber; carry out electric the connection with terminal of instrument transformer; it changes window is to play a mouthful sealing at switch cubicle air chamber relevant position to install; therefore overall structure exists volume bigger; parts are many; it is changed with instrument transformer and is contained in the switch cubicle jointly, so need a kind ofly can directly be with the fuse structure instrument transformer especially on switch cubicle producer and the market.
The utility model content
Exist weak points such as volume is big, parts are many, seal is many at gas insulation switch cabinet voltage transformer that exists in the prior art and high-tension fuse partial installation, it is that volume is little, flexible for installation, the band fuse is protected, the uniform gas-insulated cabinet of electric field band fuse voltage transformer that the technical problems to be solved in the utility model provides a kind of.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
The utility model gas-insulated cabinet with band fuse voltage transformer comprise iron core, winding, secondary winding, High-Voltage Insulation post, fuse sleeve pipe, cable plug, cable silently, high-tension fuse and metal shell, described iron core, winding, secondary winding, High-Voltage Insulation post, a fuse sleeve pipe adopt epoxide resin material to be cast for integral structure, this integral structure outer enclosure has metal shell, fuse sleeve pipe sealing part is by cable plug insulated enclosure, and the outside suit cable of High-Voltage Insulation post silently.
The top that the fuse sleeve pipe is positioned at integral structure stretches out and is horizontal rectangular shape, and inner die cavity is cylinder and the frustum of a cone shape of transition mutually.
The insulated part of cable plug is a truncated cone shape, and the bottom is the metal flange of circular band installing hole; Cable silently insulating part is a truncated cone shape, and the end is fixed with the cylindrical metal terminal, and compressible spring is installed.
Be provided with semi-conductive layer between this integral type external metallization shell and the internal resin main body.
This integral type external metallization shell upper and secondary connection box top are provided with suspension ring.
The utlity model has following beneficial effect and advantage:
1. volume is little, flexible for installation: the inner employing of the utility model epoxy resin outside is a metal shell, the high-tension fuse envelope is put the integrative-structure in product inside, small product size is little, in light weight, one time HV Terminal adopts the cable of terminal cable technology silently to cooperate, suspension ring designs easily etc., product is installed and used very flexible.
2. band fuse protection, electric field are even: the high-tension fuse that the inner envelope of the utility model is put; can not burn fault when effectively guaranteeing the product systems fault; metal shell design and with the internal resin main body between semi-conductive layer design is arranged; make the utility model inside and outside electric field even; can chargedly touch operation safe.
3. maintenance period is long, utilization is extensive: the utility model fuse opening part and a HV Terminal adopt electric cable accessories insulated enclosure mode, it is very stable to insulate, one time the high-pressure conductor element is located in the sulphur hexafluoride insulating gas, do not contact, can be widely used in the various environment with the various adverse circumstances in the external world.
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 is the utility model internal structure schematic diagram.
Embodiment
As Figure 1-3, the utility model adopts following structure:
The utility model secondary winding 3 and winding 2 are concentric to be sleeved on 1 post unshakable in one's determination after on the insulation framework, through being fixed in the casting mold after insulation and the buffering wrapping, pour into a mould with epoxide resin vacuum, the formula that behind overcuring, becomes one structure, be set at last in the bulk metal shell 9, the main part that contacts with metal shell 9 before the suit need evenly be coated with one deck semi-conductive layer 10; The utility model can chargedly touch, and fuse sleeve pipe 5 sealing parts adopt cable plug 6 insulated enclosures, play effective insulating effect, and High-Voltage Insulation post 4 outside suit cable silently 7 are with the inner cone insulator coordinated insulation sealing in the switch cubicle air chamber; The top that fuse sleeve pipe 5 is positioned at main structure is extended to the outside and is horizontal rectangular shape, and inner die cavity is cylinder and the frustum of a cone shape of transition mutually, and is consistent with cable plug 6 fit shapes, precise and reliable fitted seal during insulation; Cable plug 6, insulated part are truncated cone shape, the bottom is the metal flange of circular band installing hole, not only as the device that mainly is fixed and clamped, and can guarantee that effective metal contacts with metal shell, cable silently 7 insulating part partly is a truncated cone shape, the end is fixed with the cylindrical metal terminal, and compressible spring is installed, during use with air chamber in high voltage component carry out electric the connection; Between integral type external metallization shell 9 and the internal resin main body semi-conductive layer 10 is arranged, can be effectively and the external metallization housing contacts, improve Electric Field Distribution and reduce the interface field intensity; Integral structure external metallization shell 9 tops and secondary connection box 11 tops are provided with suspension ring 12, control position, handled easily when as product carrying being installed.
During use, the cable that High-Voltage Insulation post 4 of the utility model matches silently 7 is realized connecting with the interior high voltage component cooperative mechanical of switch cubicle air chamber, the end is fixed with cylindrical metal terminal and compressible spring and realizes carrying out electric the contact with the interior high-pressure section of air chamber, near mounting panel and the connector of a high-pressure side that metal shell 9 is fixed in utilization fixedly mounts switch cubicle air chamber outside with the utility model, carry out the connection of secondary cable after having fixed again, after all the other high voltage components of switch cubicle install, utilize the sulphur hexafluoride aerating device that air chamber is carried out inflatable insulation, i.e. this device installation.
The utility model is a kind of metal armouring female type voltage transformer with the fuse protection, a kind of new product of wanting specific (special) requirements according to national standard and gas-filled type switch cubicle fully and designing, employing rolls iron core, utilize the electromagnetic conversion principle, make secondary voltage can reflect the situation of change of primary voltage exactly, use as voltage measurement and relaying protection, the product insulation is stable, good airproof performance, suitable environment is extensive, volume is little, improves the reliability of power supply greatly; Adopt the cable termination technology can directly be installed in the sulphur hexafluoride gas-filled type switch cubicle, realize switch cubicle integration, miniaturization development.
Claims (5)
1. a gas-insulated cabinet is with being with the fuse voltage transformer, it is characterized in that: comprise iron core (1), a winding (2), secondary winding (3), a High-Voltage Insulation post (4), fuse sleeve pipe (5), cable plug (6), cable is (7) silently, high-tension fuse (8) and metal shell (9), described iron core (1), a winding (2), secondary winding (3), a High-Voltage Insulation post (4), fuse sleeve pipe (5) adopts epoxide resin material to be cast for integral structure, this integral structure outer enclosure has metal shell (9), fuse sleeve pipe (5) sealing part is by cable plug (6) insulated enclosure, and the outside suit cable of a High-Voltage Insulation post (4) is (7) silently.
By the described gas-insulated cabinet of claim 1 with band fuse voltage transformer, it is characterized in that: the top that fuse sleeve pipe (5) is positioned at integral structure stretches out and is horizontal rectangular shape, inner die cavity is cylinder and the frustum of a cone shape of transition mutually.
3. by the described gas-insulated cabinet of claim 1 band fuse voltage transformer, it is characterized in that: the insulated part of cable plug (6) is a truncated cone shape, and the bottom is the metal flange of circular band installing hole; Cable silently (7) insulating part is a truncated cone shape, and the end is fixed with the cylindrical metal terminal, and compressible spring is installed.
4. by the described gas-insulated cabinet of claim 1 band fuse voltage transformer, it is characterized in that: be provided with semi-conductive layer (10) between this integral type external metallization shell (9) and the internal resin main body.
5. by the described gas-insulated cabinet of claim 1 band fuse voltage transformer, it is characterized in that: this integral type external metallization shell (9) top and secondary connection box (11) top are provided with suspension ring (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206919500U CN201927472U (en) | 2010-12-30 | 2010-12-30 | Voltage transformer with fuse for gas insulated cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206919500U CN201927472U (en) | 2010-12-30 | 2010-12-30 | Voltage transformer with fuse for gas insulated cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201927472U true CN201927472U (en) | 2011-08-10 |
Family
ID=44431309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206919500U Expired - Fee Related CN201927472U (en) | 2010-12-30 | 2010-12-30 | Voltage transformer with fuse for gas insulated cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201927472U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496880A (en) * | 2011-11-30 | 2012-06-13 | 汕头市兆华电业有限公司 | Fuse insulating cylinder of sulfur hexafluoride switch cabinet |
| CN102867636A (en) * | 2012-09-17 | 2013-01-09 | 熊江咏 | Electronic voltage transformer matching with high-voltage GIS |
| CN103295752A (en) * | 2013-06-04 | 2013-09-11 | 衡阳一互电气有限公司 | Voltage transformer with fuse protection function used in C-GIS (cubicle gas insulated switchgear) of rail transit |
| CN105957702A (en) * | 2016-07-06 | 2016-09-21 | 江苏科兴电器有限公司 | Outdoor metal armoured type voltage transformer |
-
2010
- 2010-12-30 CN CN2010206919500U patent/CN201927472U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496880A (en) * | 2011-11-30 | 2012-06-13 | 汕头市兆华电业有限公司 | Fuse insulating cylinder of sulfur hexafluoride switch cabinet |
| CN102867636A (en) * | 2012-09-17 | 2013-01-09 | 熊江咏 | Electronic voltage transformer matching with high-voltage GIS |
| CN103295752A (en) * | 2013-06-04 | 2013-09-11 | 衡阳一互电气有限公司 | Voltage transformer with fuse protection function used in C-GIS (cubicle gas insulated switchgear) of rail transit |
| CN105957702A (en) * | 2016-07-06 | 2016-09-21 | 江苏科兴电器有限公司 | Outdoor metal armoured type 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: 20110810 Termination date: 20191230 |