CN201229848Y - Current mutual inductor for GIS - Google Patents
Current mutual inductor for GIS Download PDFInfo
- Publication number
- CN201229848Y CN201229848Y CNU200820029578XU CN200820029578U CN201229848Y CN 201229848 Y CN201229848 Y CN 201229848Y CN U200820029578X U CNU200820029578X U CN U200820029578XU CN 200820029578 U CN200820029578 U CN 200820029578U CN 201229848 Y CN201229848 Y CN 201229848Y
- Authority
- CN
- China
- Prior art keywords
- inner shield
- gis
- coil
- shield tube
- upper flange
- 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 - Lifetime
Links
Images
Landscapes
- Regulation Of General Use Transformers (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model relates to the field of high-voltage electric appliances and discloses a current transformer used for GIS. The transformer comprises an inner shielding tube and a coil arranged on the inner shielding tube, and is characterized by comprising an upper flange; the upper flange is connected with the upper end of the inner shielding tube in a sealing way; the upper end of the inner shielding tube is provided with a circular boss; a semi-circular fastener with an L-shaped cross section is arranged below the boss; the semi-circular fastener is fixedly connected with the upper flange; the lower end of the inner shielding tube is provided with a circular tray; the circular tray is used to bear the coil; insulating resin is cast between the coil and the outer wall of the inner shielding tube.
Description
Technical field
The utility model relates to the High-Voltage Electrical Appliances field, particularly a kind of GIS Current Transformer.
Background technology
GIS (insulated metal sealing switch equipment) adopts the gas isolated High-Voltage Electrical Appliances of SF6, pure SF6 gas has the best arc extinguishing and insulation property, and stable performance, but its insulation property often are subjected to the influence of electrically conductive particles and water content, and insulation property and arc extinction performance are descended.Electrically conductive particles moves under electric field action, and they are arranged in electric field and puncture voltage is reduced; Moisture can form condensation on the insulating part surface, it is unfavorable that insulation property are brought, can have influence on simultaneously the stability of SF6 gas, when moisture more for a long time, hydrolysis just may take place and produces hydrofluoric acid in SF6 gas more than 200 ℃, has very strong corrosivity, hydrolysate makes the arc extinction performance of SF6 gas descend simultaneously, so in the gas isolated High-Voltage Electrical Appliances of SF6, need be to the water content and the strict control of electrically conductive particles of SF6 gas, to improve the operational reliability of high voltage electric appliance.
The GIS Current Transformer is one of vitals of GIS electrical equipment.Usually whole parts of current transformer are assemblied in the GIS SF6 air chamber, and the cleannes of parts and moisture effects SF6 gas performance have increased the uncertain factor of security of operation.
The utility model content
Order of the present utility model is to provide a kind of GIS Current Transformer, and it can reduce the assembling amount of parts of SF6 air chamber in the GIS, farthest reduces parts cleannes and moisture to SF6 gas-insulated performance, improves the security performance of GIS electrical equipment.
In order to achieve the above object, of the present utility modelly be achieved by the following technical solutions: a kind of GIS Current Transformer comprises the inner shield tube, be sleeved on the coil on the inner shield tube, it is characterized in that, also comprise upper flange, described upper flange and inner shield tube upper end are tightly connected.
Characteristics of the present utility model also are:
Described inner shield tube upper end has the convex annular edge, and the below, convex edge is provided with the semi-ring securing member that the cross section is the L type, and described semi-ring securing member is fixedlyed connected with upper flange.
Described inner shield tube lower end has annular pallet, and pallet carrying coil is cast with insulating resin between coil and the inner shield drum outer wall.
Because the utility model is tightly connected inner shield tube upper end with upper flange, the parts of current transformer place outside the SF6 air chamber of GIS electrical equipment, reduce the assembling amount of parts of SF6 air chamber, farthest reduce cleannes and moisture to SF6 gas-insulated Effect on Performance, improved the safety in operation of GIS electrical equipment on the one hand, on the other hand, the production requirement of GIS Current Transformer is significantly lowered.
Description of drawings
Below in conjunction with description of drawings and embodiment the utility model is further illustrated.
Fig. 1 is a 220KV GIS Current Transformer assembly structure schematic diagram; Wherein: 1 is upper flange, and 2 is shielding cylinder, and 3 is the semi-ring securing member, and 4 is shell, and 5 is insulating resin, and 6 is coil, and 7 is terminal box, and 8 is the GIS conductor.
Embodiment
With reference to Fig. 1, the upper end of inner shield tube 2 has the convex annular edge, and the lower end has annular pallet, and coil 6 is sleeved on the inner shield tube 2, and the annular pallet carrying by the lower end is cast with insulating resin 5 between coil 6 and inner shield tube 1 outer wall, and is combined into one.Present embodiment with all coils 6 suits after, carry out integrated poured with inner shield tube 2 outer walls then.
After coil 6 and inner shield tube 1 assembled, adopting the cross section that is arranged on below, inner shield tube 2 convex edges was the semi-ring securing member 3 of L type, is connected with upper flange 1 bolt, is provided with Gask-O-Seal between inner shield tube 2 convex edge upper surfaces and the upper flange 1.Shell 4 is welded between the outer of upper flange 1 outer and described inner shield tube 1 annular pallet, and coil 6 is wrapped in wherein, and the arranged outside of shell 4 has the terminal box 7 of coil 6.
When the utility model and the assembling of GIS electrical equipment are used, GIS conductor 8 passes inner shield tube 2 and upper flange 1, the annular pallet of inner shield tube 2 and upper flange 1 are tightly connected with the SF6 air chamber of GIS electrical equipment respectively, are full of SF6 gas in the inner shield tube 2, and the GIS conductor is insulated.The parts that do not have current transformer in the whole SF6 air chamber, therefore, the cleannes of current transformer parts and moisture can not influence the insulation property of SF6 gas, have improved the safety in operation of GIS electrical equipment; On the other hand, the production requirement of GIS Current Transformer is significantly lowered, and production technology is simplified, and production cost reduces.
Claims (3)
1, a kind of GIS Current Transformer comprises the inner shield tube, is sleeved on the coil on the inner shield tube, it is characterized in that, also comprises upper flange, and described upper flange and inner shield tube upper end are tightly connected.
2, a kind of GIS Current Transformer according to claim 1 is characterized in that, described inner shield tube upper end has the convex annular edge, and the below, convex edge is provided with the semi-ring securing member that the cross section is the L type, and described semi-ring securing member is fixedlyed connected with upper flange.
3, a kind of GIS Current Transformer according to claim 1 is characterized in that, described inner shield tube lower end has annular pallet, and pallet carrying coil is cast with insulating resin between coil and the inner shield drum outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820029578XU CN201229848Y (en) | 2008-07-08 | 2008-07-08 | Current mutual inductor for GIS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820029578XU CN201229848Y (en) | 2008-07-08 | 2008-07-08 | Current mutual inductor for GIS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201229848Y true CN201229848Y (en) | 2009-04-29 |
Family
ID=40634790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820029578XU Expired - Lifetime CN201229848Y (en) | 2008-07-08 | 2008-07-08 | Current mutual inductor for GIS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201229848Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616300A (en) * | 2018-12-27 | 2019-04-12 | 山东大学 | A kind of magnet shielding structure of smoothing reactor |
| CN110767413A (en) * | 2018-07-26 | 2020-02-07 | 河南平芝高压开关有限公司 | Current transformer for GIS and assembling method thereof |
-
2008
- 2008-07-08 CN CNU200820029578XU patent/CN201229848Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767413A (en) * | 2018-07-26 | 2020-02-07 | 河南平芝高压开关有限公司 | Current transformer for GIS and assembling method thereof |
| CN109616300A (en) * | 2018-12-27 | 2019-04-12 | 山东大学 | A kind of magnet shielding structure of smoothing reactor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101388284A (en) | Current mutual inductor for GIS | |
| CN204088986U (en) | A kind of 35kV photovoltaic generation box-type substation | |
| CN204067175U (en) | The high-pressure vacuum switch pole of a kind of pair of leading-out terminal | |
| CN201435572Y (en) | Electric outgoing sleeve | |
| CN202796706U (en) | Solid packed pole with current transformer casted inside | |
| CN202816779U (en) | Solid insulated pole | |
| CN201229848Y (en) | Current mutual inductor for GIS | |
| CN101834087A (en) | Improved high-voltage breaker | |
| CN203055656U (en) | Three-phase electromagnetic voltage transformer with disconnecting switch for geographic information system (GIS) | |
| CN103456474B (en) | A kind of combined transformer low-tension bushing | |
| CN202856229U (en) | Solid insulating ring main unit | |
| CN201725724U (en) | Improved type high voltage breaker | |
| CN201594465U (en) | Electronic high-voltage direct current transformer | |
| CN204155678U (en) | A kind of porcelain formula bushing | |
| CN202796711U (en) | Sealed-type high-voltage vacuum circuit breaker pole suitable for smart power grid | |
| CN208796757U (en) | A kind of novel high-tension current inductor | |
| CN204361550U (en) | A kind of solid all-insulated switch | |
| CN202957469U (en) | Box body for sealing high-voltage switch | |
| CN203552921U (en) | Voltage transformer provided with plum blossom contact device and used for wheelbarrow | |
| CN202917380U (en) | Box-type modular high-voltage alternating-current vacuum circuit breaker on 10 KV outdoor column | |
| CN202977287U (en) | Insulation pull bar structure | |
| CN201927535U (en) | High-insulation solid-sealed polar pole | |
| CN204991425U (en) | Take outdoor voltage transformer of secondary circuit fuse | |
| CN211016984U (en) | Fuse cylinder of solid cabinet | |
| CN204558349U (en) | A kind of Combined-type insulating part for vacuum circuit-breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090429 |
|
| CX01 | Expiry of patent term |