CN204088021U - A kind of dry-type transformer preventing partial discharge - Google Patents
A kind of dry-type transformer preventing partial discharge Download PDFInfo
- Publication number
- CN204088021U CN204088021U CN201420469907.8U CN201420469907U CN204088021U CN 204088021 U CN204088021 U CN 204088021U CN 201420469907 U CN201420469907 U CN 201420469907U CN 204088021 U CN204088021 U CN 204088021U
- Authority
- CN
- China
- Prior art keywords
- folder
- low
- transformer body
- guard box
- voltage coil
- 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 - Fee Related
Links
Landscapes
- Regulation Of General Use Transformers (AREA)
Abstract
The utility model discloses a kind of dry-type transformer preventing partial discharge, comprise guard box, transformer body and mobile pulley, described transformer body surrounding is provided with guard box, guard box top is provided with radiator fan, guard box side is provided with ventilation mouth, be provided with bottom girder below transformer body, lower sill beam is provided with mobile pulley; Described transformer body comprises folder, high-tension coil, low-voltage coil and seal, described folder is arranged on above transformer body, folder is provided with dividing plate, dividing plate is provided with tagblock, described dividing plate is connected with crossbeam by the connecting rod vertically arranged, be provided with high-tension coil and low-voltage coil side by side between described folder and bottom girder, folder is connected with high-tension coil, low-voltage coil by seal, and low-voltage coil is in series with short-circuit protector; The utility model can move freely, perfect heat-dissipating, can avoid partial discharge, effectively can prevent the coil damage that transformer causes because of overcurrent fault, long service life.
Description
Technical field
The utility model relates to a kind of transformer, specifically a kind of dry-type transformer preventing partial discharge.
Background technology
Dry-type transformer is the same with other transformers all heavier, mobilely like this gets up to require great effort very much, needs many people to combine movement, mobile very not aspect, and existing dry-type transformer is all outdoor installation mostly, and under atrocious weather condition, useful life is just very short like this, Cast Resin Dry-Type Transformer has the features such as difficult combustion, safe, reliable, easy to maintenance and volume are little, but can produce bubble thus make traditional dry-type transformer there is partial discharge phenomenon due to the casting insulated dry-type transformer of epoxy resins bad inside of technology controlling and process when vacuum pouring, dry-type transformer is in running, because major part lacks necessary safety precautions, often because of low-pressure side electrical appliance overload, short circuit, and the generation of the situation such as thunderbolt and cause coil overcurrent, transformer self is caused to damage, thus, being badly in need of a kind of overcurrent that runs in this field can the transformer of self-shield, and prior art is mostly use automatic protector beyond transformer, but this protective device circuit is complicated, cost is high, and only can the device be connected with transformer be protected, and cannot realize carrying out effective self-shield to transformer itself, for above problem, need to improve the dry-type transformer of prior art.
Utility model content
The purpose of this utility model is to provide a kind of and is convenient to movement, long service life, the dry-type transformer that effectively can realize transformer body autoprotection, prevent partial discharge, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of dry-type transformer preventing partial discharge, comprise guard box, transformer body and mobile pulley, described transformer body surrounding is provided with guard box, guard box top is provided with radiator fan, guard box side is provided with ventilation mouth, be provided with bottom girder below transformer body, lower sill beam is provided with mobile pulley; Described transformer body comprises folder, high-tension coil, low-voltage coil and seal, described folder is arranged on above transformer body, folder is provided with dividing plate, dividing plate is provided with tagblock, described dividing plate is connected with crossbeam by the connecting rod vertically arranged, be provided with high-tension coil and low-voltage coil side by side between described folder and bottom girder, folder is connected with high-tension coil, low-voltage coil by seal; Described seal comprises cross-over block, metallic shield cap, metal nail pressing and metallic gasket, described cross-over block is arranged on the top of high-tension coil and low-voltage coil, the top of cross-over block is provided with metallic shield cap, metallic shield cap is connected with metal nail pressing by metallic gasket, and described metal nail pressing is fixedly connected with folder; Described low-voltage coil is in series with short-circuit protector; described short-circuit protector comprises insulation shell, contact and lead-in wire; described contact is set to two; be sealed in insulation shell, filling inert gas in insulation shell, described contact comprises bimetal leaf and contact; one end of bimetal leaf is connected with contact; the other end is connected with lead-in wire, the lead-in wire at described short-circuit protector two ends respectively with the enamelled wire weld of low-voltage coil, and be provided with sealing shroud outside the pad of lead-in wire and enamelled wire joint.
As further program of the utility model: described crossbeam is arranged on above guard box, and crossbeam is provided with suspension ring.
As the utility model further scheme: described cross-over block is insulating resin cushion block, and cross-over block top is provided with groove, groove and metallic shield cap adaptation, described metal crimp nail joint ground.
As the utility model further scheme: be provided with cooling airway in described transformer body, be provided with damping cushion between transformer body and bottom girder.
As the utility model further scheme: described guard box sidewall is provided with temperature inductor.
Compared with prior art, the beneficial effects of the utility model are: the utility model realizes moving fast, easily by the suspension ring of top design and the mobile pulley of bottom setting, save time less manpower, guard box and louvre is provided with outside transformer body, dry-type transformer can be avoided to destroy by bad weather, improve useful life; The seal insulation system arranged between folder and high-tension coil, low-voltage coil is reasonable, and metallic shield cap is connected with the metal nail pressing of ground connection by metallic gasket, thus masks the field intensity on the air gap that is added between cushion block and nail pressing, avoids partial discharge; When occurring electrical appliance overload, short circuit because of low voltage winding in transformers; when causing coil overcurrent etc. situation; the contact be serially connected in the short-circuit protector on low-voltage coil disconnects automatically; thus cut off the electricity supply; the transformer coil damage effectively preventing transformer body overcurrent fault from causing; limitedly realize autoprotection, structure is simple, cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged drawing of part A in Fig. 1.
Fig. 3 is the structural representation of short-circuit protector in the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 ~ 3, in the utility model embodiment, a kind of dry-type transformer preventing partial discharge, comprise guard box 1, transformer body 2 and mobile pulley 3, described transformer body 2 surrounding is provided with guard box 1, guard box 1 top is provided with radiator fan 4, guard box 1 side is provided with ventilation mouth 5, guard box 1 sidewall is provided with temperature inductor (27), bottom girder 6 is provided with below described transformer body 2, be provided with damping cushion 28 between transformer body 2 and bottom girder 6, bottom girder 6 bottom is provided with mobile pulley 3, is provided with cooling airway 26 in transformer body 2; Described transformer body 2 comprises folder 7, high-tension coil 8, low-voltage coil 9 and seal 10, described folder 7 is arranged on above transformer body 1, folder 7 is provided with dividing plate 11, dividing plate 11 is provided with tagblock 12, described dividing plate 11 is connected with crossbeam 14 by the connecting rod 13 vertically arranged, described crossbeam 14 is arranged on above guard box 1, crossbeam 14 is provided with suspension ring 25, be provided with high-tension coil 8 and low-voltage coil 9 between described folder 7 and bottom girder 6 side by side, folder 7 is connected with high-tension coil 8, low-voltage coil 9 by seal 10; Described seal 10 comprises cross-over block 15, metallic shield cap 16, metal nail pressing 17 and metallic gasket 18, described cross-over block 15 is arranged on the top of high-tension coil 8 and low-voltage coil 9, described cross-over block 15 is insulating resin cushion block, cross-over block 15 top is provided with groove, groove and metallic shield cap 16 adaptation, the top of cross-over block 15 is provided with metallic shield cap 16, metallic shield cap 16 is connected with metal nail pressing 17 by metallic gasket 18, described metal nail pressing 17 ground connection, described metal nail pressing 5 is fixedly connected with folder 7; Described low-voltage coil 9 is in series with short-circuit protector 19; described short-circuit protector 19 comprises insulation shell 20, contact 21 and lead-in wire 22; described contact 21 is set to two; be sealed in insulation shell 20; filling inert gas in insulation shell 20; described contact 21 comprises bimetal leaf 23 and contact 24; one end of bimetal leaf 23 is connected with contact 24; the other end is connected with lead-in wire 22; the lead-in wire 22 at described short-circuit protector 19 two ends welds with the enamelled wire joint 30 of low-voltage coil 9 respectively, and is provided with sealing shroud 29 outside lead-in wire 22 and the pad of enamelled wire joint 30.
Operation principle of the present utility model is: in the utility model, the operation principle of dry-type transformer is prior art, do not repeat in the text, metallic shield cap 16 in seal 10 is connected with metal nail pressing 17 by metallic gasket 18, metal nail pressing 17 ground connection, thus mask the field intensity be added between cross-over block 15 and metal nail pressing 17 on air gap, all field intensity are all added on the better epoxy resin of insulation property, thus effectively can prevent partial discharge, the operation principle of short-circuit protector 19 is: dry-type transformer is in course of normal operation, short-circuit protector 19 is connected with low-voltage coil 9, the operating current of low-voltage coil 9 forms path by two contacts contacted with each other 24, when low-voltage coil 9 occurs that electrical appliance transships, short circuit cause the situation of low-voltage coil 9 overcurrent time, bimetal leaf 23 generates heat and is out of shape, two contacts 24 are caused to be separated, thus low-voltage coil 9 is in off state, low-voltage coil 9 is avoided to damage, after low-voltage coil 9 temperature declines, bimetal leaf 23 recovers shape, two contacts 24 contact, circuit is made again to recover channel status, effectively achieve autoprotection.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (5)
1. one kind prevents the dry-type transformer of partial discharge, comprise guard box (1), transformer body (2) and mobile pulley (3), it is characterized in that: described transformer body (2) surrounding is provided with guard box (1), guard box (1) top is provided with radiator fan (4), guard box (1) side is provided with ventilation mouth (5), transformer body (2) below is provided with bottom girder (6), and bottom girder (6) bottom is provided with mobile pulley (3), described transformer body (2) comprises folder (7), high-tension coil (8), low-voltage coil (9) and seal (10), described folder (7) is arranged on transformer body (1) top, folder (7) is provided with dividing plate (11), dividing plate (11) is provided with tagblock (12), described dividing plate (11) is connected with crossbeam (14) by the connecting rod (13) vertically arranged, high-tension coil (8) and low-voltage coil (9) is provided with side by side between described folder (7) and bottom girder (6), folder (7) is by seal (10) and high-tension coil (8), low-voltage coil (9) connects, described seal (10) comprises cross-over block (15), metallic shield cap (16), metal nail pressing (17) and metallic gasket (18), described cross-over block (15) is arranged on the top of high-tension coil (8) and low-voltage coil (9), the top of cross-over block (15) is provided with metallic shield cap (16), metallic shield cap (16) is connected with metal nail pressing (17) by metallic gasket (18), and described metal nail pressing (5) is fixedly connected with folder (7), described low-voltage coil (9) is in series with short-circuit protector (19), described short-circuit protector (19) comprises insulation shell (20), contact (21) and lead-in wire (22), described contact (21) is set to two, be sealed in insulation shell (20), the interior filling inert gas of insulation shell (20), described contact (21) comprises bimetal leaf (23) and contact (24), one end of bimetal leaf (23) is connected with contact (24), the other end is connected with lead-in wire (22), the lead-in wire (22) at described short-circuit protector (19) two ends welds with the enamelled wire joint (30) of low-voltage coil (9) respectively, and be provided with sealing shroud (29) outside lead-in wire (22) and the pad of enamelled wire joint (30).
2. the dry-type transformer preventing partial discharge according to claim 1, is characterized in that, described crossbeam (14) is arranged on guard box (1) top, and crossbeam (14) is provided with suspension ring (25).
3. the dry-type transformer preventing partial discharge according to claim 1, it is characterized in that, described cross-over block (15) is insulating resin cushion block, cross-over block (15) top is provided with groove, groove and metallic shield cap (16) adaptation, described metal nail pressing (17) ground connection.
4. the dry-type transformer preventing partial discharge according to claim 1, it is characterized in that, be provided with cooling airway (26) in described transformer body (2), between transformer body (2) and bottom girder (6), be provided with damping cushion (28).
5. the dry-type transformer preventing partial discharge according to claim 1, is characterized in that, described guard box (1) sidewall is provided with temperature inductor (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420469907.8U CN204088021U (en) | 2014-08-20 | 2014-08-20 | A kind of dry-type transformer preventing partial discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420469907.8U CN204088021U (en) | 2014-08-20 | 2014-08-20 | A kind of dry-type transformer preventing partial discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204088021U true CN204088021U (en) | 2015-01-07 |
Family
ID=52180703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420469907.8U Expired - Fee Related CN204088021U (en) | 2014-08-20 | 2014-08-20 | A kind of dry-type transformer preventing partial discharge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204088021U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111801759A (en) * | 2017-12-15 | 2020-10-20 | Abb瑞士股份有限公司 | Fixing system for medium-voltage or high-voltage switching poles |
-
2014
- 2014-08-20 CN CN201420469907.8U patent/CN204088021U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111801759A (en) * | 2017-12-15 | 2020-10-20 | Abb瑞士股份有限公司 | Fixing system for medium-voltage or high-voltage switching poles |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203659778U (en) | Outdoor full insulation jet type fuse | |
| CN103730301B (en) | Fuse | |
| CN204088021U (en) | A kind of dry-type transformer preventing partial discharge | |
| CN203760855U (en) | High-voltage equipment box for train | |
| CN205724749U (en) | The wall bushing that a kind of dirt exclusion capabilities is strong | |
| CN105846374A (en) | Wall bushing with high dustproof capability | |
| CN206313317U (en) | A kind of breaker protection case with emergency power off and fire-proof function | |
| CN214588595U (en) | Vacuum arc-extinguishing chamber with visual protection function | |
| CN204577221U (en) | A kind of heat radiation winding of dry-type transformer | |
| CN202473563U (en) | Overcurrent self-protecting transformer | |
| CN203312147U (en) | Vacuum circuit breaker | |
| CN203941811U (en) | Capacitor | |
| CN207517506U (en) | A kind of wind power generation combined type transformer | |
| CN202586125U (en) | Theta-shaped wind substation | |
| CN204720941U (en) | High-tension cable outdoor terminal head protector | |
| CN205159051U (en) | Coil of dry -type transformer | |
| CN205104343U (en) | Photovoltaic power generation dry -type transformer | |
| CN201278303Y (en) | Transformer | |
| CN205248019U (en) | Arrester for electric power | |
| CN203607823U (en) | Dry-type transformer coil short circuit protector | |
| CN202394687U (en) | Sleeve of high-voltage voltage transformer | |
| CN205303410U (en) | Fast acting fuse | |
| CN204792322U (en) | Transformer tank with anticreep function of preventing fires | |
| CN204011015U (en) | A kind of electric railway isolating transformer | |
| CN103700550A (en) | Outdoor all-insulated jet fuse protector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHEN ANCHUN Effective date: 20150204 Owner name: LIU DONGJIAN Free format text: FORMER OWNER: HUANG YOUMAO Effective date: 20150204 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 315700 NINGBO, ZHEJIANG PROVINCE TO: 621000 MIANYANG, SICHUAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150204 Address after: 621000 2 sets of Songshan village, Yongxing Town, Mianyang hi tech Industrial Development Zone, Sichuan, China Patentee after: Liu Dongjian Patentee after: Chen Anchun Address before: 315700 Dongcheng Industrial Zone, Xiangshan County, Zhejiang, Ningbo Patentee before: Huang Youmao |
|
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: CHEN ANCHUN Effective date: 20150215 Owner name: MIANYANG MIRACLE ELECTRIC CO., LTD. Free format text: FORMER OWNER: LIU DONGJIAN Effective date: 20150215 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150215 Address after: 621000 No. 8, industrial economic experimentation area, new soap industry, Fucheng District, Sichuan, Mianyang Patentee after: MIANYANG MIRACLE ELECTRIC CO., LTD. Address before: 621000 2 sets of Songshan village, Yongxing Town, Mianyang hi tech Industrial Development Zone, Sichuan, China Patentee before: Liu Dongjian Patentee before: Chen Anchun |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20150820 |
|
| EXPY | Termination of patent right or utility model |