CN202771934U - Mining oil-immersed transformer - Google Patents
Mining oil-immersed transformer Download PDFInfo
- Publication number
- CN202771934U CN202771934U CN 201220429727 CN201220429727U CN202771934U CN 202771934 U CN202771934 U CN 202771934U CN 201220429727 CN201220429727 CN 201220429727 CN 201220429727 U CN201220429727 U CN 201220429727U CN 202771934 U CN202771934 U CN 202771934U
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- transformer
- joint
- sleeve pipe
- integral type
- oil
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Abstract
The utility model provides a mining oil-immersed transformer which applies to mine job as electrical equipment transforming the high voltage electricity to the low voltage electricity. An oil tank is arranged in a transformer box body. A transformer machine body and insulated oil are arranged in the oil tank. The mining oil-immersed transformer is characterized in that an integrated sleeve pipe is arranged at the high electricity side of the transformer, one end of the integrated sleeve pipe is arranged inside the transformer, the other end of the integrated sleeve pipe extends out of the transformer and is sequentially connected with a connector and a high voltage cable, conductive pieces which achieves that the high voltage cable is electrically connected with the outer side of the transformer box body are evenly arranged inside the connector and the integrated sleeve pipe. The mining oil-immersed transformer has the advantages of being capable of preventing human body from contacting electricity and electric shock and meanwhile being low in noises, strong in insulating property, good in fireproof performance and the like.
Description
Technical field
The utility model relates to field of electrical equipment, more particularly, relates to a kind of mining oil-filled transformer.
Background technology
Mining oil-filled transformer is a kind of movably transformation device, in order to change the size of alternating voltage.It is applicable to methane blended gas and coal dust etc. has in the mine of explosion hazard, converts 6kV, 10kV power supply under 400V, 693V, 1200V, the 3450V coal mine required low-tension supply.
Present stage, also there is following shortcoming in mining oil-filled transformer: first, down-hole chamber, tunnel, getting working face etc. need the place of mounting electrical equipment, the space is all narrow, the chance of human body contact electric equipment, cable is many, and mining oil immersed type high voltage side of transformer uses porcelain bottle sleeve at present, and insulating properties is not enough, when human body contacted with transformer high-voltage, electric shock accidents easily occured; The second, mining oil immersed type transformer adopting be common transformer oil, the burning-point of this kind oil is not high, and is inflammable, causes the fire protecting performance of mining oil-filled transformer lower, in case the consequence that has an accident is serious, and can't work steadily in the long term under the environment of high temperature; The 3rd, although mining oil-filled transformer iron core adopts high-quality low-loss silicon steel sheet, its noise is still greater than three-dimensional volume iron core class transformer, and is existing along with the requirement of people to operational environment, more and more stricter to the requirement of noise; The 4th, the overload capacity of mining oil-filled transformer is not strong, can't work steadily in the long term under the environment of higher temperature, and too high temperature can be accelerated the ageing of insulation of transformer, affects transformer useful life.Therefore, mining oil-filled transformer is designed with very large room for improvement.
The utility model content
The purpose of this utility model is to overcome shortcoming of the prior art with not enough, and a kind of mining oil-filled transformer that prevents that the human body contact from getting an electric shock, noise is little, has good insulating performance and fire protecting performance is provided.
In order to achieve the above object, the utility model is achieved by following technical proposals: a kind of mining oil-filled transformer, be provided with fuel tank in the transformer-cabinet, be provided with transformer body and insulating oil in the fuel tank, it is characterized in that: the high-pressure side of described transformer is provided with the integral type sleeve pipe; One end of described integral type sleeve pipe is arranged in the transformer, and the other end reaches outside the transformer and is connected with high-tension cable with joint successively; Described realization high-tension cable is with in the electric-conductor that transformer-cabinet is electrically connected outward all is arranged on joint and integral type sleeve pipe.Realize that high-tension cable all is arranged in joint and the integral type sleeve pipe with the electric-conductor that transformer-cabinet is electrically connected outward, form good insulation with the external world, when transformer moved, human body contacts also with it can not produce electric shock accidents; Simultaneously, can guarantee can not occur in the transformer running phenomenon of leaking electricity, discharging.
Preferred scheme is: described electric-conductor comprises the first electric-conductor and interface double-screw bolt; Described integral type casing pipe sleeve is located at outside the interface double-screw bolt, is connected to form by Plug Division and sealing, and described integral type sleeve pipe two broad in the middle is little, and middle as sealing, two forms the Plug Division; Described joint is the sleeve that the longitudinal cross-section is T-shape, and the outermost layer of sleeve is insulating case, and sleeve inner is provided with the first electric-conductor; The left end of described joint level is provided with horizontal jack, and right-hand member insulated enclosure, joint vertically part have vertical jack; Plug Division of described integral type sleeve pipe inserts in the horizontal jack of joint to realize being electrically connected of interface double-screw bolt and the first electric-conductor, the sealing of integral type sleeve pipe is fixed on the casing of transformer, and another Plug Division of integral type sleeve pipe is arranged in the transformer-cabinet and with transformer body and is electrically connected; Be electrically connected with the first electric-conductor in the vertical jack of the conductor wire ear insertion joint of described high-tension cable.
Described joint refers to the shielding type cable joint.
Described joint refers to the CJB joint, and the CJB joint is connected with earth potential.
Insulating oil in the fuel tank refers to high burning-point insulating oil.But the insulation property of Effective Raise transformer simultaneously can be to reducing transformer noise.
The layer insulation of the high-tension coil of transformer body adopts the U.S. paper of promise; The layer insulation of the low-voltage coil of transformer body adopts the U.S. paper of promise.The insulation property of coil can improve greatly, are conducive to prolong the useful life of transformer.
Compared with prior art, the utlity model has following advantage and beneficial effect:
1, the insulation property of the integral type sleeve pipe of the high-pressure side of the utility model transformer employing are strong, realize that in addition the electric-conductor that high-tension cable and transformer-cabinet are electrically connected all is arranged in joint and the integral type sleeve pipe outward, form good insulation with the external world, when transformer moved, human body contacts also with it can not produce electric shock accidents; Simultaneously, can guarantee can not occur in the transformer running phenomenon of leaking electricity, discharging;
2, the high burning-point insulating oil of the utility model transformer adopting has high electrical insulation properties, and burning-point is high, has reduced the accident rate of transformer; Simultaneously high burning-point insulation oil viscosity is large, and the noise of transformer is had certain inhibitory action, and the comparable former transformer of noise reduces 2-3db;
3, the layer insulation of the coil of the utility model transformer adopts the U.S. paper of promise, and the insulation property of coil improve greatly; And the U.S. paper acid and alkali resistance corrosion of promise, easily with the transformer oil compatibility, nontoxic, anti-combustion is not melted in air, not combustion-supporting, can in stable operation under the hot environment, prolong the useful life of transformer.
Description of drawings
Fig. 1 is integral type sleeve pipe in the mining oil-filled transformer of the utility model and the connection diagram of high-tension cable;
Wherein, 1 is that integral type sleeve pipe, 2 is that interface double-screw bolt, 3 is that joint, 4 is the conductor wire ear, and 5 is high-tension cable.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
Embodiment one
The mining oil-filled transformer of the utility model is applied in the mine operation, as the electric equipment that high-tension electricity is converted to low tension.
Be provided with fuel tank in the transformer-cabinet, be provided with transformer body and insulating oil in the fuel tank.Its high-pressure side is provided with integral type sleeve pipe 1, and an end of integral type sleeve pipe 1 is arranged in the transformer, and it is outer and are connected with high-tension cable with joint 3 successively and are connected that the other end reaches transformer; Realize that high-tension cable 5 all is arranged in joint 3 and the integral type sleeve pipe 1 with the electric-conductor that transformer-cabinet is electrically connected outward.Electric-conductor comprises the first electric-conductor and interface double-screw bolt 2.Transformer tank is external, and the connection diagram of integral type sleeve pipe 1 and high-tension cable 5 as shown in Figure 1.
Integral type sleeve pipe 1 is set in outside the interface double-screw bolt 2, is connected to form by Plug Division and sealing, and integral type sleeve pipe 1 two broad in the middle is little, and middle as sealing, two forms the Plug Division.Joint 3 is sleeves that the longitudinal cross-section is T-shape, and the outermost layer of sleeve is insulating case, and sleeve inner is provided with the first electric-conductor.The left end of joint 3 levels is provided with horizontal jack, the right-hand member insulated enclosure, and joint 3 vertically part has vertical jack.Because the right-hand member of joint 3 is positioned at the front of transformer, operating personnel are with it contact easily, and the right-hand member insulated enclosure can prevent from getting an electric shock after the human body contact.
Plug Division of integral type sleeve pipe 1 inserts in the horizontal jack of joint 3 to realize being electrically connected of interface double-screw bolt 2 and the first electric-conductor, the sealing of integral type sleeve pipe 1 is fixed on the casing of transformer, and another Plug Division of integral type sleeve pipe 1 is arranged in the transformer-cabinet and with transformer body and is electrically connected.Be electrically connected with the first electric-conductor in the vertical jack of the conductor wire ear 4 insertion joints 3 of high-tension cable 5.
Transformer of the present utility model, the insulation property of integral type sleeve pipe are strong, realize that in addition the electric-conductor that high-tension cable and transformer-cabinet are electrically connected all is arranged in joint and the integral type sleeve pipe outward, form good insulation with the external world, when transformer moved, human body contacts also with it can not produce electric shock accidents; Simultaneously, can guarantee can not occur in the transformer running phenomenon of leaking electricity, discharging.
The high-tension coil of transformer body, the layer insulation of low-voltage coil adopt the U.S. paper of promise.The U.S. paper material of promise has the characteristic of high insulation high-temperature-resistant, and insulation reaches C level level, can long-term safety move under 220 ℃ of environment, can make transformer satisfy the condition of heavy-duty service.
Insulating oil in the fuel tank of transformer adopts high burning-point insulating oil.High burning-point insulating oil has the characteristic of high burning-point, high insulation, greatly reduces the accident rate of transformer.Moreover, high ignition point oil also has very high overlond running ability, work can be under the environment of high temperature more steady in a long-term.The overall performance of transformer is improved a lot.
Embodiment two
One the Plug Division that the integral type sleeve pipe of the present embodiment is connected with joint carries the current-carrying part of protrusion, can directly insert in the joint, does not need by the interface double-screw bolt.Realize that high-tension cable all is arranged in joint and the integral type sleeve pipe with the electric-conductor that transformer-cabinet is electrically connected outward.The remainder of transformer is with embodiment one.
Above-described embodiment is the better execution mode of the utility model; but execution mode of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection range of the present utility model.
Claims (6)
1. a mining oil-filled transformer is provided with fuel tank in the transformer-cabinet, is provided with transformer body and insulating oil in the fuel tank, it is characterized in that: the high-pressure side of described transformer is provided with the integral type sleeve pipe; One end of described integral type sleeve pipe is arranged in the transformer, and the other end reaches outside the transformer and is connected with high-tension cable with joint successively; Described realization high-tension cable is with in the electric-conductor that transformer-cabinet is electrically connected outward all is arranged on joint and integral type sleeve pipe.
2. mining oil-filled transformer according to claim 1, it is characterized in that: described electric-conductor comprises the first electric-conductor and interface double-screw bolt; Described integral type casing pipe sleeve is located at outside the interface double-screw bolt, is connected to form by Plug Division and sealing, and described integral type sleeve pipe two broad in the middle is little, and middle as sealing, two forms the Plug Division; Described joint is the sleeve that the longitudinal cross-section is T-shape, and the outermost layer of sleeve is insulating case, and sleeve inner is provided with the first electric-conductor; The left end of described joint level is provided with horizontal jack, and right-hand member insulated enclosure, joint vertically part have vertical jack; Plug Division of described integral type sleeve pipe inserts in the horizontal jack of joint to realize being electrically connected of interface double-screw bolt and the first electric-conductor, the sealing of integral type sleeve pipe is fixed on the casing of transformer, and another Plug Division of integral type sleeve pipe is arranged in the transformer-cabinet and with transformer body and is electrically connected; Be electrically connected with the first electric-conductor in the vertical jack of the conductor wire ear insertion joint of described high-tension cable.
3. mining oil-filled transformer according to claim 1, it is characterized in that: described joint refers to the shielding type cable joint.
4. mining oil-filled transformer according to claim 3, it is characterized in that: described joint refers to the CJB joint, the CJB joint is connected with earth potential.
5. mining oil-filled transformer according to claim 1 is characterized in that: the insulating oil in the fuel tank refers to high burning-point insulating oil.
6. mining oil-filled transformer according to claim 1 is characterized in that: the U.S. paper of layer insulation employing promise of the high-tension coil of transformer body; The layer insulation of the low-voltage coil of transformer body adopts the U.S. paper of promise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220429727 CN202771934U (en) | 2012-08-27 | 2012-08-27 | Mining oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220429727 CN202771934U (en) | 2012-08-27 | 2012-08-27 | Mining oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202771934U true CN202771934U (en) | 2013-03-06 |
Family
ID=47778487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220429727 Expired - Fee Related CN202771934U (en) | 2012-08-27 | 2012-08-27 | Mining oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202771934U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741926A (en) * | 2019-02-28 | 2019-05-10 | 广东中鹏电气有限公司 | A kind of equipment that transformer vacuumizes correction oil injection method and realizes this method |
| US11295886B2 (en) | 2016-03-08 | 2022-04-05 | Siemens Energy Global GmbH & Co. KG | Winding arrangement having a plug-in bushing |
-
2012
- 2012-08-27 CN CN 201220429727 patent/CN202771934U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11295886B2 (en) | 2016-03-08 | 2022-04-05 | Siemens Energy Global GmbH & Co. KG | Winding arrangement having a plug-in bushing |
| CN109741926A (en) * | 2019-02-28 | 2019-05-10 | 广东中鹏电气有限公司 | A kind of equipment that transformer vacuumizes correction oil injection method and realizes this method |
| CN109741926B (en) * | 2019-02-28 | 2023-11-28 | 广东中鹏电气有限公司 | Vacuumizing oiling method for transformer and equipment for realizing same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20200827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |