CN201622926U - Plug-in type voltage transformer with full insulation structure for C-GIS switch cabinet - Google Patents
Plug-in type voltage transformer with full insulation structure for C-GIS switch cabinet Download PDFInfo
- Publication number
- CN201622926U CN201622926U CN2010201195521U CN201020119552U CN201622926U CN 201622926 U CN201622926 U CN 201622926U CN 2010201195521 U CN2010201195521 U CN 2010201195521U CN 201020119552 U CN201020119552 U CN 201020119552U CN 201622926 U CN201622926 U CN 201622926U
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- China
- Prior art keywords
- epoxy resin
- plug
- insulation
- modular connection
- resin poured
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- Expired - Lifetime
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Abstract
The utility model discloses a plug-in type voltage transformer with a full insulation structure for a C-GIS switch cabinet, which relates to the technical field of transformers, and comprises an epoxy resin casting body, a metal coating, a standard connector, an insulation drain plug, a secondary lead, a hanging ring and a bottom plate, wherein the metal coating is evenly sprayed on the surface of the epoxy resin casting body, and the hanging ring is arranged at the top end of the epoxy resin casting body; and the bottom plate is arranged at the bottom end of the epoxy resin casting body. The plug-in type voltage transformer is characterized in that the standard connector is arranged at one side of the epoxy resin casting body, and a mounting plate is also arranged on the epoxy resin casting body around the standard connector; the insulation drain plug is arranged at the upper end of the other side of the epoxy resin casting body, and a fuse wire is arranged between the insulation drain plug and the standard connector; and the secondary lead is arranged at the lower end of the epoxy resin casting body at the same side of the insulation drain plug. The utility model has the beneficial effects that two standard cable interfaces are utilized so as to well solve the problem that the plug-in type voltage transformer with the full insulation structure can be conveniently and reliably assembled on an air box of the C-GIS switch cabinet.
Description
Technical field
The utility model relates to the transformer technology field, specifically is a kind of plug-in all insulation structure voltage instrument transformer of the C-GIS of being used for switch cubicle.
Background technology
The plug-in voltage transformer now generally is used for medium pressure gas insulated switch cabinet (C-GIS), can directly insert on the gas tank.But the voltage transformer product that has only semi-insulating structural shape at present, so-called semi-insulating structure are meant that an end of the high pressure winding of voltage transformer is a high-pressure side, and the other end is zero potential (a N end).This kind product generally can only be used " Y " type connection, promptly is connected into three-phase, and the general direct ground connection of high pressure winding " N end " after connecting.Because the medium voltage network system of China mostly is neutral non-effective grounding (earth-free) system, can cause " N " end directly grounded " Y " type connection voltage transformer to produce ferro resonance and produce overvoltage and the overcurrent phenomenon, often cause instrument transformer to burn, therefore need take " N " end by resonance eliminator or zero sequential potential transformer ground connection, to change the inductance capacitance parameter of system, make resonance be difficult to produce.But can cause " N " end place that high potential (generally having the current potential of nearly phase voltage) is arranged like this, three principal voltage instrument transformers that then require to be connected into " Y " type connection must adopt " N " end to be with the scheme of main insulation, and promptly all insulation structure---high pressure winding two ends are high-pressure side.Voltage transformer in normal air insulated switch cabinet (AIS) field has all insulation organization plan at present, but also do not have the direct scheme of pegging graft or passing through high-tension cable (annex) connection of all insulation structure at the plug-in voltage transformer that is used for gas insulation switch cabinet (C-GIS) field, brought certain limitation for like this popularization of C-GIS switch cubicle on market.
Summary of the invention
But the technical problem that the utility model solved is to provide a kind of safe touch simple in structure, also can realizes the reliable plug-in all insulation structure voltage instrument transformer that is used for the C-GIS switch cubicle that plugs.
For achieving the above object, technical solution adopted in the utility model is;
A kind of plug-in all insulation structure voltage instrument transformer that is used for the C-GIS switch cubicle, comprise epoxy resin poured body, metal coating, modular connection, the insulation plug, secondary lead wires, suspension ring and base plate, described metal coating evenly is sprayed at the appearance of described epoxy resin poured body, described suspension ring are arranged at the top of described epoxy resin poured body, described base plate is arranged at the bottom of described epoxy resin poured body, it is characterized in that: the side in described epoxy resin poured body is provided with modular connection, also be provided with mounting panel on the epoxy resin poured body around the described modular connection, described insulation plug is located at the opposite side upper end of described epoxy resin poured body, be provided with fuse between described insulation plug and described modular connection, described secondary lead wires is located at the lower end of described insulation plug homonymy epoxy resin poured body.
The quantity of described modular connection is two and is up and down and distributes that wherein top one is external insulation modular connection, below one be built-in inner cone modular connection, perhaps two are external insulation modular connection, perhaps two are built-in inner cone modular connection.
Described mounting panel is metal material and closely contacts with described metal coating, is provided with fixing hole on described mounting panel, is used for convenient for assembly and static effectively derived with the gas tank of C-GIS switch cubicle.
The utility model with respect to the beneficial effect that existing product had is: utilize two standard cable interfaces, solved well on the convenient and reliable gas tank that is assembled in the C-GIS switch cubicle of all insulation structure plug-in voltage transformer.
Description of drawings
Fig. 1 is the whole cross-sectional view of the utility model;
Fig. 2 is the whole cross-sectional view of the external insulation modular connection of the utility model;
Fig. 3 is the whole cross-sectional view of the built-in inner cone modular connection of the utility model.
Embodiment
In order to make the utility model realize new technological means, creation characteristic, to reach purpose and effect is easy to understand,, further set forth the utility model below in conjunction with concrete diagram.
As Fig. 1,2, shown in 3, a kind of plug-in all insulation structure voltage instrument transformer that is used for the C-GIS switch cubicle, comprise epoxy resin poured body 1, metal coating 2, modular connection 3, insulation plug 4, secondary lead wires 5, suspension ring 6 and base plate 7, metal coating 2 evenly is sprayed at the outer surface of epoxy resin poured body 1, on the top of epoxy resin poured body 1, be provided with two suspension ring 6 and be used to transport lifting and auxiliary the installation, be provided with base plate 7 in the bottom of epoxy resin poured body 1, be provided with two in a side of epoxy resin poured body 1 and be the modular connection 3 that distributes up and down, wherein top one is external insulation modular connection, below one be built-in inner cone modular connection (as shown in Figure 1), perhaps two are external insulation modular connection (as shown in Figure 2), and perhaps two are built-in inner cone modular connection (as shown in Figure 3).On the epoxy resin poured body 1 around the modular connection 3, also be provided with mounting panel 8, mounting panel 8 is metal material and closely contacts with metal coating 2, on mounting panel 8, be provided with fixing hole 9, be used for convenient for assembly and the static on instrument transformer surface effectively derived with the gas tank of C-GIS switch cubicle.Insulation plug 4 is located at the opposite side upper end of epoxy resin poured body 1; between modular connection 3 and insulation plug 4, be provided with fuse 10; as circuit and switch cubicle protection usefulness, secondary lead wires 5 is located at the lower end of insulation plug 4 homonymy epoxy resin poured body 1, connects secondary meter easily for the user.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. plug-in all insulation structure voltage instrument transformer that is used for the C-GIS switch cubicle, comprise epoxy resin poured body, metal coating, modular connection, the insulation plug, secondary lead wires, suspension ring and base plate, described metal coating evenly is sprayed at the appearance of described epoxy resin poured body, described suspension ring are arranged at the top of described epoxy resin poured body, described base plate is arranged at the bottom of described epoxy resin poured body, it is characterized in that: the side in described epoxy resin poured body is provided with modular connection, also be provided with mounting panel on the epoxy resin poured body around the described modular connection, described insulation plug is located at the opposite side upper end of described epoxy resin poured body, be provided with fuse between described insulation plug and described modular connection, described secondary lead wires is located at the lower end of described insulation plug homonymy epoxy resin poured body.
2. a kind of plug-in all insulation structure voltage instrument transformer that is used for the C-GIS switch cubicle according to claim 1 is characterized in that; The quantity of described modular connection is two and is up and down and distributes that wherein top one is external insulation modular connection, below one be built-in inner cone modular connection, perhaps two are external insulation modular connection, perhaps two are built-in inner cone modular connection.
3. a kind of plug-in all insulation structure voltage instrument transformer that is used for the C-GIS switch cubicle according to claim 1 is characterized in that; Described mounting panel is metal material and closely contacts with described metal coating, be provided with fixing hole on described mounting panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201195521U CN201622926U (en) | 2010-02-26 | 2010-02-26 | Plug-in type voltage transformer with full insulation structure for C-GIS switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201195521U CN201622926U (en) | 2010-02-26 | 2010-02-26 | Plug-in type voltage transformer with full insulation structure for C-GIS switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201622926U true CN201622926U (en) | 2010-11-03 |
Family
ID=43026382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201195521U Expired - Lifetime CN201622926U (en) | 2010-02-26 | 2010-02-26 | Plug-in type voltage transformer with full insulation structure for C-GIS switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201622926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900901A (en) * | 2012-10-11 | 2013-01-30 | 武汉科锐电气有限公司 | Insulation sealing plug |
-
2010
- 2010-02-26 CN CN2010201195521U patent/CN201622926U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900901A (en) * | 2012-10-11 | 2013-01-30 | 武汉科锐电气有限公司 | Insulation sealing plug |
| CN102900901B (en) * | 2012-10-11 | 2015-07-15 | 武汉科锐电气有限公司 | Insulation sealing plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101103 |
|
| CX01 | Expiry of patent term |