CN2711869Y - All closed buried type transformer - Google Patents
All closed buried type transformer Download PDFInfo
- Publication number
- CN2711869Y CN2711869Y CN 200420022492 CN200420022492U CN2711869Y CN 2711869 Y CN2711869 Y CN 2711869Y CN 200420022492 CN200420022492 CN 200420022492 CN 200420022492 U CN200420022492 U CN 200420022492U CN 2711869 Y CN2711869 Y CN 2711869Y
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- CN
- China
- Prior art keywords
- voltage
- hermetically sealed
- voltage cable
- fuse
- cable connector
- 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
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Abstract
The utility model provides an all closed buried type transformer, which is composed of an outer shell and a core body; the core body is composed of an iron core, a coil and an insulator; the outer shell is composed of a seal tank body and a cover body; the cover body is provided with a pressure release valve, a high-voltage cable connecting device, a low-voltage cable connecting device, a fuse and a tapping switch; the high-voltage cable connecting device and the low-voltage cable connecting device adopt the all sealed cable connecting devices; one end of the high-voltage cable connector is connected with a high-voltage cable, and the other end of the high-voltage cable connector is connected with the fuse; the other end of the fuse is connected with the high-voltage coil whose the other end is connected with the tapping switch; insulating liquid is filled in the outer shell. The seal of the outer shell of the all closed buried type transformer is reliable; the three-phase middle-voltage and the high-voltage cables are effectively isolated by the cable connecting device; the insulation property is good; the three-phase cables are gathered in one connector, and can be simultaneously inserted and drawn; the all closed fuse improves the transformer protection performance; the insulating liquid improves the transformer insulation stability; the all closed tapping switch can adjust the voltage ratio; the pressure release valve prevents the accident happening due to the pressure in the shell is oversize, and can be embedded under the ground for a long time or immersed in the water to run.
Description
Technical field
The utility model relates to transformer, relates in particular to a kind of full-sealed transformer, and concrete is a kind of hermetically sealed buried transformer.
Background technology
In the prior art; transformer is by shell; core body and electric wire connecting junction constitute; core body is by iron core; the high-tension coil winding; low-voltage coil winding and insulator constitute; iron core is made of the silicon steel sheet butt joint; electric wire connecting junction is by height; low pressure connecting sleeve and cable connector constitute; inject insulating oil in the enclosure; the seal degree of the body seal of the transformer of said structure and cable connector all can not meet to be imbedded underground for a long time or is immersed in the requirement that moves in the water; press fuse protected during transformer is not provided with on the other hand; the degree of protection of transformer does not reach the safety requirements of IP68 prescribed by standard, so can not be used for buried.
Summary of the invention
Technical problem of the prior art to be solved in the utility model is: because the seal degree of the body seal of transformer of the prior art and its cable connector that adopts all can not meet and imbed underground for a long time or be immersed in the requirement that moves in the water; press fuse protected during transformer is not provided with simultaneously; the degree of protection of transformer does not reach the safety requirements of IP68 prescribed by standard, so can not be used for buried.
The utility model is that the technical scheme that solution above-mentioned technical problem of the prior art is adopted provides a kind of hermetically sealed buried transformer, described this hermetically sealed buried transformer is made of shell and core body, described core body is arranged in the described shell, described core body is by iron core, the high-tension coil winding, low-voltage coil winding and insulator constitute, described high-tension coil winding and low-voltage coil winding are arranged on the described iron core, it is characterized in that: described shell is made of a sealing cell body and a lid, described lid and described sealing cell body seal welding, described lid is provided with a relief valve, at least be provided with a high-voltage cable connector and a low-voltage cable connector on the described lid, described lid is provided with three fuses, described lid is provided with a shunting switch, one end of described high-voltage cable connector is connected with interchange three-phase high-voltage cable, the other end of described high-voltage cable connector is connected with described fuse by lead, the other end of described fuse is connected with described high-tension coil winding, the described high-tension coil winding other end is connected with described shunting switch, described low-voltage coil winding is connected with an end of described low-voltage cable connector, the other end of described low-voltage cable connector is connected with lv power cable, is filled with iknsulating liquid in the described shell.
Further, described high-voltage cable connector and low-voltage cable connector are made of a fully-sealed electric cable connector respectively.
Further, any one described fully-sealed electric cable connector constitutes by an insulating joint seat and movable contact headgear, one end of described insulating joint seat is provided with a seal cover, the described seal cover outside is truncated cone, be provided with three cable through-holes in the described seal cover, all there is insulation board to separate between any two described cable through-holes, be filled with iknsulating liquid between any two described cable through-holes, the upper end of described seal cover is provided with one and goes up spiral cover, the described spiral cover of going up is connected with described seal cover with the O RunddichtringO by screw thread, the outside, lower end of described seal cover is provided with radially boss along circumference, in described radially boss arranged outside a screwed lid is arranged, described screwed lid by screw thread be connected with described insulating joint seat to sealing ring in length and breadth, described moving contact is set in the described insulating joint seat, be provided with three ducts in the described movable contact headgear, any one described duct all communicates with a described cable through-hole, be provided with a movable contact rod in any one described duct, any one described duct all is opened on the lower end of described insulating joint seat, all has insulation board to separate between any two described ducts.
Further, the outside of described insulating joint seat is cylindrical.
Further, the described spiral cover of going up is provided with central through hole, and described central through hole inboard is provided with sealing ring.
Further, described insulating joint seat is inserted in the lower end of described seal cover, is provided with sealing ring between described seal cover and the described insulating joint seat.
Further, in described insulating joint seat, the lower end of any one described movable contact rod is provided with a contactor, all has insulation board to separate between any two described contactors.
Further, described shunting switch is hermetically sealed shunting switch.
Further, described fuse is hermetically sealed fuse.
Further, be provided with fuse in the described fuse, described fuse is serially connected in and exchanges on the three-phase high-voltage circuit connection.
Further, described shunting switch is provided with four binding posts, and any one described binding post is connected with a cable in the described interchange three-phase high-voltage cable respectively.
Further, described hermetically sealed shunting switch, hermetically sealed fuse, iknsulating liquid, high pressure movable contact rod, contactor and sealing ring, all adopt known solution of the prior art, known by those of ordinary skill in the art about hermetically sealed shunting switch, hermetically sealed fuse, iknsulating liquid, high pressure movable contact rod, contactor and sealing ring known solution in the prior art, do not repeated them here.
The utility model and prior art contrast, and its effect is actively with tangible.The utility model has increased the sealing reliability of shell because shell adopts incorporate sealing cell body and lid; In addition, high-voltage cable connector or low-voltage cable connector are effectively isolated the middle and high voltage cable quarter-phase of three-phase, threephase cable enters in the insulating joint seat by the central through hole and the cable through-hole in the seal cover of last spiral cover, and process movable contact headgear is connected with movable contact rod, the other end of insulating joint seat is inserted on the stationary contact head rod that connects buried transformer, good insulating, and threephase cable concentrates in the connector, can plug simultaneously, easy to use.Simultaneously, in high-voltage connection, be connected with hermetically sealed fuse, improved the protective value of transformer; and fill iknsulating liquid in the enclosure; more can improve the insulation stability of transformer, and adopt hermetic shunting switch, further strengthen the sealed insulation reliability.
Description of drawings:
Fig. 1 looks schematic diagram for the master of the hermetically sealed buried transformer of the utility model.
Fig. 2 is the schematic top plan view of the hermetically sealed buried transformer of the utility model.
Fig. 3 is the side direction generalized section of the hermetically sealed buried transformer of the utility model.
Fig. 4 is the catenation principle figure of the interchange three-phase high-voltage cable in the hermetically sealed buried transformer of the utility model.
Fig. 5 is the cross-sectional view of the fully-sealed electric cable connector in the hermetically sealed buried transformer of the utility model.
Embodiment:
As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, a kind of hermetically sealed buried transformer of the utility model, constitute by shell 1 and core body, described core body is arranged in the described shell 1, described core body is by iron core 2, high-tension coil winding 4, low-voltage coil winding and insulator constitute, described high-tension coil winding 4 and low-voltage coil winding are arranged on the described iron core 2, wherein, described shell 1 is made of a sealing cell body and a lid, described lid and described sealing cell body seal welding, described lid is provided with a relief valve 5, at least be provided with a high-voltage cable connector 6 and a low-voltage cable connector 7 on the described lid, described lid is provided with three fuses 8, described lid is provided with a shunting switch 3, one end of described high-voltage cable connector 6 is connected with interchange three-phase high-voltage cable 9, the other end of described high-voltage cable connector 6 is connected with described fuse 8 by lead, the other end of described fuse 8 is connected with described high-tension coil winding 4, described high-tension coil winding 4 is connected with described shunting switch 3, described low-voltage coil winding is connected with an end of described low-voltage cable connector 7, the other end of described low-voltage cable connector 7 is connected with lv power cable, is filled with iknsulating liquid 12 in the described shell 1.
As shown in Figure 5, described high-voltage cable connector 6 and low-voltage cable connector 7 are made of a fully-sealed electric cable connector respectively.Any one described fully-sealed electric cable connector constitutes by an insulating joint seat 97, wherein, one end of described insulating joint seat 97 is provided with a seal cover 93, described seal cover 93 outsides are truncated cone, be provided with three cable through-holes in the described seal cover 93, all there is insulation board to separate between any two described cable through-holes, the upper end of described seal cover 93 is provided with one and goes up spiral cover 911, the described spiral cover 911 of going up is connected with described seal cover 93 by screw thread, the outside, lower end of described seal cover 93 is provided with radially boss 93 along circumference, in described radially boss 93 arranged outside a screwed lid 94 is arranged, described screwed lid 94 is connected with described insulating joint seat 97 by screw thread, be provided with movable contact headgear 96 in the described insulating joint seat 97, be provided with three ducts in the described movable contact headgear 96, any one described duct all communicates with a described cable through-hole, be provided with a movable contact rod 98 in any one described duct, any one described duct all is opened on the lower end of described insulating joint seat 97, all has insulation board to separate between any two described ducts.
In a preferred embodiment of the present utility model, the outside of described insulating joint seat 97 is cylindrical.
The described spiral cover 911 of going up is provided with central through hole, and described central through hole inboard is provided with sealing ring 92.
Described insulating joint seat 97 is inserted in the lower end of described seal cover 93, is provided with sealing ring 95 between described seal cover 93 and the described insulating joint seat 97.
In described insulating joint seat 97, the lower end of any one described movable contact rod 98 is provided with a contactor 99, all has insulation board 913 to separate between any two described contactors 99.
In described insulating joint seat 7, the lower end of any one described movable contact rod 8 is provided with a contactor 99, all has insulation board 13 to separate between any two described contactors 99.
Described movable contact rod 98, contactor 99, sealing ring 92 and sealing ring 95 all adopt the technical scheme in the prior art, do not repeat them here.
In a preferred embodiment of the present utility model, described shunting switch 3 is hermetically sealed shunting switchs.
Described fuse 8 is hermetically sealed fuses.
Be provided with fuse 10 in the described fuse 8, described fuse 10 is serially connected on the described interchange three-phase high-voltage cable 9.
Be provided with a binding post 31, binding post 32, a binding post 33 and a binding post 34 in the described shunting switch 3, binding post 31, binding post 32, binding post 33 and binding post 34 respectively with exchange three-phase high-voltage cable 9 in a wiring be connected.
Claims (11)
1. hermetically sealed buried transformer, constitute by shell and core body, described core body is arranged in the described shell, described core body is by iron core, the high-tension coil winding, low-voltage coil winding and insulator constitute, described high-tension coil winding and low-voltage coil winding are arranged on the described iron core, it is characterized in that: described shell is made of a sealing cell body and a lid, described lid and described sealing cell body seal welding, described lid is provided with a relief valve, at least be provided with a high-voltage cable connector and a low-voltage cable connector on the described lid, described lid is provided with three fuses, described lid is provided with a shunting switch, one end of described high-voltage cable connector is connected with interchange three-phase high-voltage cable, the other end of described high-voltage cable connector is connected with described fuse by lead, the other end of described fuse is connected with described high-tension coil winding, the described high-tension coil winding other end is connected with described shunting switch, described low-voltage coil winding is connected with an end of described low-voltage cable connector, the other end of described low-voltage cable connector is connected with lv power cable, is filled with iknsulating liquid in the described shell.
2. hermetically sealed buried transformer according to claim 1 is characterized in that: described high-voltage cable connector and low-voltage cable connector are made of a fully-sealed electric cable connector respectively.
3. hermetically sealed buried transformer according to claim 2, it is characterized in that: any one described fully-sealed electric cable connector constitutes by an insulating joint seat and movable contact headgear, one end of described insulating joint seat is provided with a seal cover, the described seal cover outside is truncated cone, be provided with three cable through-holes in the described seal cover, all there is insulation board to separate between any two described cable through-holes, be filled with proportion between any two described cable through-holes greater than 1 iknsulating liquid, the upper end of described seal cover is provided with one and goes up spiral cover, the described spiral cover of going up is connected with described seal cover with the O RunddichtringO by screw thread, the outside, lower end of described seal cover is provided with radially boss along circumference, in described radially boss arranged outside a screwed lid is arranged, described screwed lid by screw thread be connected with described insulating joint seat to sealing ring in length and breadth, described moving contact is set in the described insulating joint seat, be provided with three ducts in the described movable contact headgear, any one described duct all communicates with a described cable through-hole, be provided with a movable contact rod in any one described duct, any one described duct all is opened on the lower end of described insulating joint seat, all has insulation board to separate between any two described ducts.
4. hermetically sealed buried transformer according to claim 3, it is characterized in that: the outside of described insulating joint seat is cylindrical.
5. hermetically sealed buried transformer according to claim 3 is characterized in that: the described spiral cover of going up is provided with central through hole, and described central through hole inboard is provided with sealing ring.
6. hermetically sealed buried transformer according to claim 3 is characterized in that: described insulating joint seat is inserted in the lower end of described seal cover, is provided with sealing ring between described seal cover and the described insulating joint seat.
7. hermetically sealed buried transformer according to claim 3 is characterized in that: in described insulating joint seat, the lower end of any one described movable contact rod is provided with a contactor, all has insulation board to separate between any two described contactors.
8. hermetically sealed buried transformer according to claim 1 is characterized in that: described shunting switch is hermetically sealed shunting switch.
9. hermetically sealed buried transformer according to claim 1 is characterized in that: described fuse is hermetically sealed fuse.
10. hermetically sealed buried transformer according to claim 1 is characterized in that: be provided with fuse in the described fuse, described fuse is serially connected in and exchanges on the three-phase high-voltage circuit connection.
11. hermetically sealed buried transformer according to claim 1 is characterized in that: described shunting switch is provided with four binding posts, any one described binding post is connected with a cable in the described interchange three-phase high-voltage cable respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420022492 CN2711869Y (en) | 2004-05-08 | 2004-05-08 | All closed buried type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420022492 CN2711869Y (en) | 2004-05-08 | 2004-05-08 | All closed buried type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2711869Y true CN2711869Y (en) | 2005-07-20 |
Family
ID=36192969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420022492 Expired - Lifetime CN2711869Y (en) | 2004-05-08 | 2004-05-08 | All closed buried type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2711869Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964245A (en) * | 2009-07-24 | 2011-02-02 | 上海瑞奇电气设备有限公司 | Underground totally-sealed combined transformer with lighting protection, overvoltage protection and overcurrent protection |
| CN102005714A (en) * | 2010-10-22 | 2011-04-06 | 江苏天力电气有限公司 | Cable sealing device for buried transformer |
| CN102315616A (en) * | 2010-07-08 | 2012-01-11 | 上海瑞奇电气设备有限公司 | Sealing cover for high-voltage cable connector |
| CN103413656A (en) * | 2013-08-13 | 2013-11-27 | 上海瑞奇电气设备有限公司 | Underground transformer used in high altitude area |
| CN104078203A (en) * | 2014-06-06 | 2014-10-01 | 上海瑞奇电气设备股份有限公司 | Energy-saving and emission-reduction intelligent underground transformer |
| CN104092179A (en) * | 2014-06-03 | 2014-10-08 | 上海瑞奇电气设备股份有限公司 | Underground 10kV cable splitter |
| CN105448500A (en) * | 2014-09-27 | 2016-03-30 | 刘洋 | Solid-state waterproof underground energy-saving transformer |
| CN105655107A (en) * | 2014-09-27 | 2016-06-08 | 刘洋 | Dual-seal chamber liquid state waterproof buried type energy saving transformer |
-
2004
- 2004-05-08 CN CN 200420022492 patent/CN2711869Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964245A (en) * | 2009-07-24 | 2011-02-02 | 上海瑞奇电气设备有限公司 | Underground totally-sealed combined transformer with lighting protection, overvoltage protection and overcurrent protection |
| CN102315616A (en) * | 2010-07-08 | 2012-01-11 | 上海瑞奇电气设备有限公司 | Sealing cover for high-voltage cable connector |
| CN102005714A (en) * | 2010-10-22 | 2011-04-06 | 江苏天力电气有限公司 | Cable sealing device for buried transformer |
| CN102005714B (en) * | 2010-10-22 | 2012-07-25 | 江苏天力电气有限公司 | Cable sealing device for buried transformer |
| CN103413656A (en) * | 2013-08-13 | 2013-11-27 | 上海瑞奇电气设备有限公司 | Underground transformer used in high altitude area |
| CN104092179A (en) * | 2014-06-03 | 2014-10-08 | 上海瑞奇电气设备股份有限公司 | Underground 10kV cable splitter |
| CN104078203A (en) * | 2014-06-06 | 2014-10-01 | 上海瑞奇电气设备股份有限公司 | Energy-saving and emission-reduction intelligent underground transformer |
| CN105448500A (en) * | 2014-09-27 | 2016-03-30 | 刘洋 | Solid-state waterproof underground energy-saving transformer |
| CN105655107A (en) * | 2014-09-27 | 2016-06-08 | 刘洋 | Dual-seal chamber liquid state waterproof buried type energy saving transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140508 Granted publication date: 20050720 |