CN2502384Y - 66KV indoor/outdoor dry voltage transformer - Google Patents
66KV indoor/outdoor dry voltage transformer Download PDFInfo
- Publication number
- CN2502384Y CN2502384Y CN 01266908 CN01266908U CN2502384Y CN 2502384 Y CN2502384 Y CN 2502384Y CN 01266908 CN01266908 CN 01266908 CN 01266908 U CN01266908 U CN 01266908U CN 2502384 Y CN2502384 Y CN 2502384Y
- Authority
- CN
- China
- Prior art keywords
- winding
- stem
- voltage transformer
- insulating protector
- iron core
- 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
- 238000004804 winding Methods 0.000 claims abstract description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003822 epoxy resin Substances 0.000 claims abstract description 10
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 10
- 230000001012 protector Effects 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000004411 aluminium Substances 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
- 239000002994 raw material Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract 2
- 239000010410 layer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005684 electric field Effects 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
- 239000012535 impurity Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
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- Insulating Of Coils (AREA)
Abstract
The utility model discloses a 66 kV outdoor and indoor dry-type potential transformer, which is composed of an iron core (12), a primary connecting plate (5), a high-pressure winding (2), a secondary winding (10) and an insulation protecting body (14). The insulation protecting body (14) forms by adopting outdoor epoxy resin to be casted, the high-pressure winding (2) adopts pagoda-shaped coiling and serial structure, which are winded on an upper and a lower stem of the iron core (12), the secondary winding (10) and the remaining potential winding (9) are winded on the lower stem. As for that, the utility model can make the iron core (12) only have half voltage. The high-pressure winding (2) of the upper stem and the remaining potential winding (9) of the lower stem are provided at a static electric screen (8) at the outside, the outside of the static electric screen (8) is provided with an equalizing ring (1). The utility model has simple structure, convenient installation, no oil, whole sealing and no need of maintaining, which can be installed at the load centre in the open air directly.
Description
The utility model belongs to the high-tension transformation equipment in the electric power system, is the crucial signal transmission equipment of electric power system electric energy metrical and relaying protection.
At present, plain edition oil immersed type voltage 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 98251827.7 discloses a kind of " outdoor type dry-type voltage inductor "; this voltage transformer adopts the insulating protective layer of the outdoor type epoxy resin of moulding by casting as voltage transformer; its bushing 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 punctured immediately when moving on 66kV voltage electrical network.
The purpose of this utility model be to provide a kind of can be indoors or outdoor use, the voltage transformer that can on the 66kV electrical network, move again.
In order to achieve the above object; the utility model adopts outdoor type epoxy resin to pour into a mould the insulating protector of voltage transformer under vacuum environment; in order to increase product along the face creepage distance; and reach the requirement of IV level gradation for surface pollution; the alternate full skirt of 18-26 layer size is made in the insulation protection surface; its cross section is oval, and gamp width a is 1.3-1.5 with the ratio of umbellule width b.The high pressure winding adopts the coiling of pagoda shape, and design has electrostatic shielding, electrostatic shielding end increase grading ring.The high pressure winding adopts tandem formula structure, and promptly the high pressure winding is divided into two equal segments, and on two stem stems up and down of iron core, secondary winding and residual voltage winding are then on following stem stem respectively.In order to make winding reduce leakage reactance, up and down on the iron core column again respectively around a balance winding, realize forcing dividing potential drop, make high voltage be divided into two voltages that evenly reduce half, make insulation thickness also can corresponding reduction half.
More firm for the primary connection plate is installed, with three bolted, can prevent effectively that the primary connection plate from making its loosening and rotation because of conductor tension between primary connection plate and the primary connection terminal.
In order to increase the sealing property between primary connection terminal and the insulating protector, between primary connection terminal and the insulating protector with the O-ring seals sealing, prevent that insulating protector and primary connection terminal from ftractureing after, rainwater or impurity enter.
For the ease of the oil immersed type voltage transformer is changed, the installing hole size of the primary connection plate at insulating protector top can be general with the oil immersed type voltage transformer.
For the convenience of installation and transportation, the channel-section steel support that the utility model installs and fixes usefulness is equipped with 4 M10 lifting bolts, brings great convenience for the transporting and hoisting of product.
Because the utility model adopts outdoor type epoxy resin to replace plain edition epoxy resin to make insulating protective layer; make voltage 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 voltage transformer; the utility model is owing to adopted the insulating protector of special shape and forced the winding construction of dividing potential drop; a little less than making electric field strength like this; insulation system is more reasonable, can guarantee the requirement of the electrical insulation properties that the utility model moves on the 66kV electrical network, and can reduce the distance of structure relatively; reduce the volume of product; thereby reach under same insulation level economical with materials, the purpose that reduces cost.
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.
Fig. 3 is a vertical view of the present utility model
As shown in Figure 1 and Figure 2, on the stem stem up and down of iron core 12 respectively around a balance winding 11, high pressure winding 2 is pressed the coiling of pagoda shape, adopt tandem formula structure, respectively on two stem stems up and down of iron core 12,9 of secondary winding 10 and residual voltage windings can make 12 of iron cores be with a half voltage on following stem stem like this.All there is electrostatic shielding 8 in the high pressure winding 2 of last stem stem and residual voltage winding 9 outsides of following stem stem, and there is grading ring 1 in the outside of electrostatic shielding 8.Adopt outdoor type epoxy resin to pour into a mould the insulating protector 14 of voltage transformer under vacuum environment, insulating protector 14 surface castings become 22 layers of full skirt that size is alternate, and its cross section is oval, and gamp width a is 1.4 with the ratio of umbellule width b.Insulating protector 14 tops are terminal block 5 once; its installing hole size and oil immersed type voltage transformer are general; with O-ring seals 7 sealings, three bolts 15 are fastened on primary connection plate 5 on the primary connection terminal 6 in a triangle between insulating protector 14 and the primary connection terminal 6.The secondary connection box 3 of a cast aluminium all-sealed structure respectively is housed before and after insulating protector 14 bottoms, can effectively prevents to avenge, the intervention of materials such as rain, dirt.In insulating protector 14 bottoms channel-section steel support 13 is arranged, 4 M10 lifting bolts 4 are housed on the channel-section steel support 13, be convenient to the transportation and the lifting of product.
The utility model is used for when indoor, can adopt indoor type epoxy resin to replace outdoor type poured with epoxy resin insulating protector, reduces the cost of raw material.
Claims (7)
1. a 66kV is indoor; the outdoor type dry-type voltage inductor; comprise by iron core (12); primary connection terminal (6); high pressure winding (2); secondary winding (10) and insulating protector (14) are formed; it is characterized in that: on the stem stem up and down of iron core (12) respectively around a balance winding (11); high pressure winding (2) is pressed the coiling of pagoda shape; adopt tandem formula structure; respectively on two stem stems up and down of iron core (12); outside the high pressure winding (2) under iron core (12) on the stem stem secondary winding (10) and residual voltage winding (9) are arranged; the high pressure winding (2) of last stem stem and the residual voltage winding (9) of the following stem stem outside; electrostatic shielding (8) is all arranged; there is grading ring (1) in the outside of electrostatic shielding (8); insulating protector (14) adopts outdoor type epoxy resin to pour into a mould under vacuum environment and forms; insulating protector (14) surface casting becomes the alternate full skirt of 18-22 layer size; its cross section is oval, and gamp width a is 1.3-1.5 with the ratio of umbellule width b.
2. voltage transformer as claimed in claim 1, it is characterized in that: the installing hole size and the oil immersed type voltage transformer of the top primary connection plate (5) of insulating protector (14) are general.
3. a voltage transformer as claimed in claim 1 is characterized in that: seal with O-ring seals (7) between insulating protector (14) and the primary connection terminal (6).
4. a voltage transformer as claimed in claim 1 is characterized in that: fastening in a triangle with three bolts (15) between primary connection terminal (6) and the primary connection plate (5).
5. a voltage transformer as claimed in claim 1 is characterized in that: the secondary connection box (3) that a cast aluminium all-sealed structure respectively is housed before and after insulating protector (14) bottom.
6. a voltage transformer as claimed in claim 1 is characterized in that: on the channel-section steel support (13) of insulating protector (14) bottom 4 M10 lifting bolts (4) are housed.
7. voltage transformer as claimed in claim 1 is characterized in that: when being used for indoor use, the raw material of insulating protector (14) use indoor type epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01266908 CN2502384Y (en) | 2001-09-17 | 2001-09-17 | 66KV indoor/outdoor dry voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01266908 CN2502384Y (en) | 2001-09-17 | 2001-09-17 | 66KV indoor/outdoor dry voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2502384Y true CN2502384Y (en) | 2002-07-24 |
Family
ID=33673447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01266908 Expired - Lifetime CN2502384Y (en) | 2001-09-17 | 2001-09-17 | 66KV indoor/outdoor dry voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2502384Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013627B (en) * | 2006-09-21 | 2012-03-07 | 魏明 | Method for increasing balancing winding effect of three phase transformer with output |
| CN103065781A (en) * | 2013-01-28 | 2013-04-24 | 李丰良 | Mini voltage transformer |
| CN105374534A (en) * | 2015-11-17 | 2016-03-02 | 成都科创佳思科技有限公司 | Cascading voltage transformer |
-
2001
- 2001-09-17 CN CN 01266908 patent/CN2502384Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013627B (en) * | 2006-09-21 | 2012-03-07 | 魏明 | Method for increasing balancing winding effect of three phase transformer with output |
| CN103065781A (en) * | 2013-01-28 | 2013-04-24 | 李丰良 | Mini voltage transformer |
| CN105374534A (en) * | 2015-11-17 | 2016-03-02 | 成都科创佳思科技有限公司 | Cascading voltage 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: District 28, Dalian economic and Technological Development Zone, Liaoning, China 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: 20020724 |
|
| DD01 | Delivery of document by public notice |
Addressee: Jiang Demin Document name: Notification of Expiration of Patent Right Duration |