CN2503584Y - 35 KV outdoor dry-type current transformer - Google Patents
35 KV outdoor dry-type current transformer Download PDFInfo
- Publication number
- CN2503584Y CN2503584Y CN 01266907 CN01266907U CN2503584Y CN 2503584 Y CN2503584 Y CN 2503584Y CN 01266907 CN01266907 CN 01266907 CN 01266907 U CN01266907 U CN 01266907U CN 2503584 Y CN2503584 Y CN 2503584Y
- Authority
- CN
- China
- Prior art keywords
- current transformer
- insulating protector
- winding
- utility
- model
- 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
- 239000003822 epoxy resin Substances 0.000 claims abstract description 7
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 7
- 230000001012 protector Effects 0.000 claims description 17
- 238000004804 winding Methods 0.000 claims description 12
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 239000008397 galvanized steel Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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- Insulating Of Coils (AREA)
Abstract
The utility model discloses a 35kV outdoor dry type current transformer which consists of a primary coil (1), a secondary coil (2), a circular iron core (4), and an insulation protection body (3). The insulation protection body (3) adopts a cylindrical structure cast with epoxide resin through vacuum, the outer surface is made into 13 to 17 layer umbrella skirts of various sizes, and the ratio of the large umbrella width 1 and the small umbrella width b is 1.3 to 1.5. The utility model has the advantages of simple structure, convenient installment, no oil chemical, completely closed, free from maintenance, and being directly installed at the load center.
Description
The utility model belongs to the mesohigh converting equipment in the electric power system, is the crucial signal transmission equipment of electric power system electric energy metrical and relaying protection.
At present, the plain edition oil-immersed current transformer is suitable for using indoor and outdoor, and its insulation system mostly is insulating paper and transformer oil compound inslation, and volume is big and heavy, and inflammable, contaminated environment can not be directly installed on load center.Chinese patent ZL 98249687.7 discloses a kind of " Outdoor Dry-Type Current Transformer "; this current transformer adopts the insulating protector of the outdoor type epoxy resin of moulding by casting as current transformer; its surface casting becomes full skirt corrugated; special-purpose closed terminal box is installed at secondary leading-out terminal place; miniaturization, no oiling, totally-enclosed, non-maintaining, unattended operation have been reached; and can expose the purpose of installation in the open; but this instrument transformer only can be applicable to the electrical network of 10kV voltage, can be breakdown when moving on 35kV voltage electrical network.
The purpose of this utility model be to provide a kind of can be out of doors or indoor use, the current transformer that can on the 35kV electrical network, move again.
In order effectively to overcome the kelvin effect of electric current, a winding of the present utility model has adopted flat winding wire.
The utility model adopts outdoor type epoxy resin to pour into a mould the insulating protector of current transformer under vacuum environment; in order to increase product along the face creepage distance; the insulation protection external surface pours into the alternate full skirt of 13-17 layer size, and gamp width a is 1.3-1.5 with the ratio of umbellule width b.In order to improve the anti-internal stress of resin of the utility model and to reach the electromagnetic force ability, pour into whole insulating protector cylindrical.
Because the utility model adopts outdoor type epoxy resin to replace plain edition epoxy resin to make insulating protective layer; make current transformer have the ability of ultraviolet radiation resisting, weathering resistance erosion; no oiling, fire-retardant, antipollution purpose have been realized, long-time running under can be the out of doors full weather conditions.Compare with the 10kV current transformer, the utility model can guarantee the requirement of the electrical insulation properties that the utility model moves owing to adopted the insulating protector of special shape on the 35kV electrical network.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a front view of the present utility model.
Fig. 2 is an end view of the present utility model.
As depicted in figs. 1 and 2, secondary winding 2 of the present utility model is wound on the annular core 4, and one time winding 1 adopts flat winding wire, curves illustrated breach rectangle after passing from secondary winding 2 centers of annular, and two ends link to each other with two primary connection terminals 8 respectively.
The utility model adopts outdoor type epoxy resin to pour into the insulating protector 3 of current transformer under vacuum environment; insulating protector 3 outer surfaces are made 15 layers of full skirt that size is alternate; of the present utility model along the face creepage distance to increase, gamp width a is 1.3-1.5 with the ratio of umbellule width b.The cross section of insulating protector 3 is circular; half spherical boss 7 is arranged at the top of insulating protector 3, can effectively prevent ponding, and both sides, insulating protector 3 bottom pour into " spanner " shape; both strengthened insulation effect, installed to product again or transportation and interior among a small circle mobile bringing convenience.
Installed in front in insulating protector 3 bottoms has the secondary connection box 5 of cast aluminium all-sealed structure, makes machinery of the present utility model and electric property more safe and reliable.The bottom of insulating protector 3 is equipped with the mounting panel of making of galvanized steel plain sheet 6.
Claims (5)
1. 35kV Outdoor Dry-Type Current Transformer; comprise by a winding (1); secondary winding (2); annular core (4) and insulating protector (3) are formed; it is characterized in that: secondary winding (2) is wound on the annular core (4); a winding (1) adopts flat winding wire; curve the breach rectangle after passing from secondary winding (2) center of annular; two ends link to each other with two primary connection terminals (8) respectively; insulating protector (3) adopts outdoor type epoxy resin to pour into a mould under vacuum environment and forms; its outer surface is made the alternate full skirt of 13-17 layer size; gamp width a is 1.3-1.5 with the ratio of umbellule width b, and cross section is circular.
2. current transformer as claimed in claim 1, it is characterized in that: half spherical boss (7) is arranged at the top of insulating protector (3).
3. current transformer as claimed in claim 1, it is characterized in that: the both sides, bottom of insulating protector (3) pour into " spanner " shape.
4. a current transformer as claimed in claim 1 is characterized in that: the secondary connection box (5) that the cast aluminium all-sealed structure is installed in the lower front side of insulating protector (3).
5. current transformer as claimed in claim 1 is characterized in that: the bottom of insulating protector (3) is equipped with the mounting panel of making of galvanized steel plain sheet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01266907 CN2503584Y (en) | 2001-09-17 | 2001-09-17 | 35 KV outdoor dry-type current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01266907 CN2503584Y (en) | 2001-09-17 | 2001-09-17 | 35 KV outdoor dry-type current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2503584Y true CN2503584Y (en) | 2002-07-31 |
Family
ID=33673446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01266907 Expired - Lifetime CN2503584Y (en) | 2001-09-17 | 2001-09-17 | 35 KV outdoor dry-type current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2503584Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350247B (en) * | 2007-07-18 | 2010-09-08 | 大连北方互感器有限公司 | Outdoor dry-type voltage transformer for electric locomotive |
| CN108597828A (en) * | 2018-04-27 | 2018-09-28 | 上海大互电力电器有限公司 | Current Transformer in a kind of 24kV middle-placed switch cabinets |
-
2001
- 2001-09-17 CN CN 01266907 patent/CN2503584Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350247B (en) * | 2007-07-18 | 2010-09-08 | 大连北方互感器有限公司 | Outdoor dry-type voltage transformer for electric locomotive |
| CN108597828A (en) * | 2018-04-27 | 2018-09-28 | 上海大互电力电器有限公司 | Current Transformer in a kind of 24kV middle-placed switch cabinets |
| CN108597828B (en) * | 2018-04-27 | 2020-11-24 | 上海大一互电力电器有限公司 | 24kV centrally installed switchgear internal current transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: * RESIDENTIAL QUATER, NO. 28, JINGJIJISHU DEVELOPM Free format text: FORMER NAME OR ADDRESS: NO. 19, LIAONING PROV ROAD, DALIAN CITY DEVELOPMENT AREA, LIAONING PROVINCE |
|
| CP03 | Change of name, title or address |
Patentee address after: Jiang Demin, district 28, Dalian economic and Technological Development Zone, Liaoning Patentee address before: No. 19, Liaoning Road, Dalian Development Zone, Liaoning, China |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110917 Granted publication date: 20020731 |
|
| DD01 | Delivery of document by public notice |
Addressee: DALIAN JINYE ELECTRIC POWER EQUIPMENT Co.,Ltd. Document name: Notification of Expiration of Patent Right Duration |