CN109215991B - Backup molten core fixing device of buried transformer - Google Patents
Backup molten core fixing device of buried transformer Download PDFInfo
- Publication number
- CN109215991B CN109215991B CN201810958315.5A CN201810958315A CN109215991B CN 109215991 B CN109215991 B CN 109215991B CN 201810958315 A CN201810958315 A CN 201810958315A CN 109215991 B CN109215991 B CN 109215991B
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- China
- Prior art keywords
- insulating paper
- door frame
- backup
- fixed
- limiting ring
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Links
- 238000007789 sealing Methods 0.000 claims description 13
- 230000008018 melting Effects 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulating Of Coils (AREA)
- Regulation Of General Use Transformers (AREA)
Abstract
The invention relates to a backup fuse core fixing device of an underground transformer, which is used for placing and fixing the backup fuse core of the underground transformer and comprises a fixing box body, wherein a through hole is formed in the fixing box body, a fixing sleeve is arranged at the through hole, the fuse core is fixed through the fixing sleeve, and a plurality of layers of insulating paper tubes are arranged between the fuse core and the fixing sleeve.
Description
Technical Field
The invention relates to the field of transformer equipment, in particular to a backup molten core fixing device of a buried transformer.
Background
The buried transformer is used as one type of transformer, and is divided into an overground part and an underground part, so that the buried transformer is suitable for urban environments (installed in basements or cellars), and is particularly suitable for densely populated central cities.
The importance of the buried transformer as a transformer device in urban environments is apparent. The buried transformer used in the prior art has the following defects: 1. when a transformer core (a fuse) is fused, the core needs to be replaced when maintenance is performed, and before the core is replaced, the core applicable to the current transformer specification needs to be distributed, and the convenience is poor in the replacement and maintenance of the core; 2. in some transformers, a small number of backup cores are disposed in the overground part, but when the backup cores are stored fixedly, some problems exist, such as: the backup molten core fixing device is not compact in structure, so that the storage quantity of the backup molten cores is severely limited, only one backup molten core can be stored, replacement and maintenance of the molten cores are inconvenient, and secondly, the fixing device is poor in protectiveness and long-term storage of the backup molten cores cannot be effectively guaranteed.
Disclosure of Invention
The invention discloses a backup fuse core fixing device of an underground transformer aiming at the problems.
The specific technical scheme is as follows:
The backup molten core fixing device of the buried transformer comprises a fixing box body and is characterized in that the fixing box body is rectangular and hollow, three symmetrical groups of through holes are formed in the left side and the right side of the fixing box body, and fixing sleeves are welded at the through holes;
Three groups of through holes are correspondingly provided with three melting cores, a plurality of layers of insulating paper tubes are arranged between the melting cores and the fixed sleeve, the insulating paper tubes are cylindrical, the outer wall of the cylinder which is formed by the insulating paper tubes is provided with anti-falling lines and is attached to the inner wall of the fixed sleeve, and the inner wall of the cylinder which is formed by the insulating paper tubes is attached to the melting cores;
The top of the fixed carriage body is provided with an assembly flange and a plurality of connecting columns, the connecting columns are uniformly distributed, and the assembly flange is riveted with the connecting columns through connecting bolts so as to be fixedly connected with the fixed carriage body;
The front of the fixed carriage body is provided with a door frame, the door frame is provided with a carriage door, the door frame is square, the square periphery of the door frame is provided with a sealing groove and a packing groove, the carriage door is engaged with the door frame and is hinged with the door frame, the periphery of the carriage door is provided with a sealing strip, the sealing strip is correspondingly matched with the sealing groove, and the packing groove is filled with damp-proof packing;
One end of the insulating paper tube extends into the fixed carriage body, and the other end of the insulating paper tube is provided with a limiting ring which is attached to the outer edge of the fixed sleeve;
Further, the fixed sleeve protrudes from the left side and the right side of the fixed box body;
Further, the number of layers of the insulating paper tubes is at least 3;
further, the limiting ring and the insulating paper tube are of an integrated structure;
further, the limiting ring is in a circular ring shape, and the section of the limiting ring is in a circular arc shape;
further, the angle of the arc shape of the cross section of the limiting ring is alpha, and the alpha is 120-180 degrees;
further, the anti-drop lines are in a grid shape.
The beneficial effects of the invention are as follows:
The invention relates to a backup fuse core fixing device of an underground transformer, which is used for placing and fixing the backup fuse core of the underground transformer and comprises a fixing box body, wherein a through hole is formed in the fixing box body, a fixing sleeve is arranged at the through hole, the fuse core is fixed through the fixing sleeve, and a plurality of layers of insulating paper tubes are arranged between the fuse core and the fixing sleeve.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic view of the present invention (door open state).
Fig. 3 is a sectional view of the area a in fig. 2.
Detailed Description
In order to make the technical scheme of the invention clearer and more definite, the invention is further described below by combining the embodiment, and any scheme obtained by carrying out equivalent substitution and conventional reasoning on the technical characteristics of the technical scheme of the invention falls into the protection scope of the invention.
The backup molten core fixing device of the buried transformer comprises a fixing box body 1 and is characterized in that the fixing box body 1 is rectangular and hollow, three symmetrical groups of through holes 2 are formed in the left side and the right side of the fixing box body 1, and fixing sleeves 3 are welded at the through holes 2;
Three groups of through holes 2 are correspondingly provided with three melting cores 4, a plurality of layers of insulating paper tubes 5 are arranged between the melting cores 4 and the fixed sleeve 3, the insulating paper tubes 5 are cylindrical, the outer wall of the cylinder which is formed by the insulating paper tubes is provided with anti-falling lines and is attached to the inner wall of the fixed sleeve 3, and the inner wall of the cylinder which is formed by the insulating paper tubes 5 is attached to the melting cores 4;
The top of the fixed carriage body 1 is provided with an assembly flange 7 and a plurality of connecting columns 8, the connecting columns 8 are uniformly distributed, and the assembly flange 7 is riveted with the connecting columns 8 through connecting bolts so as to be fixedly connected with the fixed carriage body 1;
The front of the fixed carriage body 1 is provided with a door frame 9, the door frame 9 is provided with a carriage door 10, the door frame 9 is square, the square periphery of the door frame is provided with a sealing groove 11 and a packing groove 12, the carriage door 10 is in fit and hinged connection with the door frame 9, the periphery of the carriage door 10 is provided with a sealing strip 13, the sealing strip 13 is correspondingly matched with the sealing groove 11, and the packing groove 12 is filled with moisture-proof packing;
one end of the insulating paper tube 5 extends into the fixed carriage body 1, and the other end of the insulating paper tube is provided with a limiting ring 6, and the limiting ring 6 is attached to the outer edge of the fixed sleeve 3;
further, the fixed sleeve 3 protrudes from the left side and the right side of the fixed carriage body 1;
Further, the number of layers of the insulating paper tube 5 is at least 3;
Furthermore, the limiting ring 6 and the insulating paper tube 5 are of an integrated structure;
Further, the limiting ring 6 is in a circular ring shape, and the section of the limiting ring is in a circular arc shape;
Further, the angle of the arc shape of the cross section of the limiting ring 6 is alpha, and the alpha is 120-180 degrees;
Further, the anti-falling lines 6 are in a grid shape.
The embodiment is used for placing and fixing the backup molten core of the buried transformer, is installed in the transformer through the assembly flange, is placed in the fixed carriage body at an insulation interval through the fixed sleeve and the insulation paper tube, is convenient to take and use, is convenient for the installation and replacement of the transformer molten core, the insulation paper tube has a certain buffer effect, sealing strips and dampproof fillers are arranged at carriage doors and door frames, the storage safety of the backup molten core is guaranteed, the whole structure of the device is compact, and the device is suitable for buried transformers with different capacities and structures, has a simple structure, and is suitable for modularized manufacturing and batch production.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (3)
1. The backup molten core fixing device of the buried transformer comprises a fixing box body and is characterized in that the fixing box body is rectangular and hollow, three symmetrical groups of through holes are formed in the left side and the right side of the fixing box body, and fixing sleeves are welded at the through holes;
Three groups of through holes are correspondingly provided with three melting cores, a plurality of layers of insulating paper tubes are arranged between the melting cores and the fixed sleeve, the insulating paper tubes are cylindrical, the outer wall of the cylinder which is formed by the insulating paper tubes is provided with anti-falling lines and is attached to the inner wall of the fixed sleeve, and the inner wall of the cylinder which is formed by the insulating paper tubes is attached to the melting cores;
The top of the fixed carriage body is provided with an assembly flange and a plurality of connecting columns, the connecting columns are uniformly distributed, and the assembly flange is riveted with the connecting columns through connecting bolts so as to be fixedly connected with the fixed carriage body;
The front of the fixed carriage body is provided with a door frame, the door frame is provided with a carriage door, the door frame is square, the square periphery of the door frame is provided with a sealing groove and a packing groove, the carriage door is engaged with the door frame and is hinged with the door frame, the periphery of the carriage door is provided with a sealing strip, the sealing strip is correspondingly matched with the sealing groove, and the packing groove is filled with damp-proof packing;
One end of the insulating paper tube extends into the fixed carriage body, and the other end of the insulating paper tube is provided with a limiting ring which is attached to the outer edge of the fixed sleeve;
The fixed sleeve protrudes out of the left side and the right side of the fixed box body, the insulation paper tubes are at least 3 layers, the limiting ring and the insulation paper tubes are of an integrated structure, the limiting ring is of a circular ring shape, and the section of the limiting ring is of a circular arc shape.
2. The backup molten core fixing device of the buried transformer according to claim 1, wherein the limiting ring has a circular arc-shaped cross section with an angle alpha of 120-180 degrees.
3. The backup fuse core fixing device of claim 1, wherein the anti-drop lines are in a grid shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810958315.5A CN109215991B (en) | 2018-08-22 | 2018-08-22 | Backup molten core fixing device of buried transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810958315.5A CN109215991B (en) | 2018-08-22 | 2018-08-22 | Backup molten core fixing device of buried transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109215991A CN109215991A (en) | 2019-01-15 |
| CN109215991B true CN109215991B (en) | 2024-04-19 |
Family
ID=64988823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810958315.5A Active CN109215991B (en) | 2018-08-22 | 2018-08-22 | Backup molten core fixing device of buried transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109215991B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2820876A1 (en) * | 2001-02-14 | 2002-08-16 | Transfix Soc Nouv | Electrical transformer cover having transformer with isolating cross sections line connecting and having side wall outer cover extending and transformer vat edges fixed. |
| CN201149962Y (en) * | 2007-12-28 | 2008-11-12 | 中电电气集团有限公司 | Combined burying-terra transformer substation |
| CN101577199A (en) * | 2008-05-06 | 2009-11-11 | 上海置信电气股份有限公司 | High-voltage fuse suitable for underground oil immersion type distribution transformer |
| CN101819858A (en) * | 2010-04-23 | 2010-09-01 | 上官远定 | Shell type transformer utilizing evaporative cooling for heat radiation |
| CN101964253A (en) * | 2009-07-23 | 2011-02-02 | 上海琪瑞电气照明有限公司 | Unthreaded terminal mechanical explosion-proof dry type capacitor |
| CN202031374U (en) * | 2011-04-21 | 2011-11-09 | 张冀晋 | Intensive cemetery placing room |
| CN103437637A (en) * | 2013-08-31 | 2013-12-11 | 德清科迪特安保设备有限公司 | Humidity resistance safety box |
| CN203406519U (en) * | 2013-06-25 | 2014-01-22 | 国家电网公司 | Wall body waterproof structure of buried type transformer |
| CN103538699A (en) * | 2013-10-22 | 2014-01-29 | 昆山耀和体育用品有限公司 | Waterproof hatch cover |
| CN205092215U (en) * | 2015-10-28 | 2016-03-16 | 何东升 | Outdoor drop out fuse of strenghthened type |
| CN209045333U (en) * | 2018-08-22 | 2019-06-28 | 江苏宝亨新电气有限公司 | A kind of fixed device of emitting underground transformer standby fusible core |
-
2018
- 2018-08-22 CN CN201810958315.5A patent/CN109215991B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2820876A1 (en) * | 2001-02-14 | 2002-08-16 | Transfix Soc Nouv | Electrical transformer cover having transformer with isolating cross sections line connecting and having side wall outer cover extending and transformer vat edges fixed. |
| CN201149962Y (en) * | 2007-12-28 | 2008-11-12 | 中电电气集团有限公司 | Combined burying-terra transformer substation |
| CN101577199A (en) * | 2008-05-06 | 2009-11-11 | 上海置信电气股份有限公司 | High-voltage fuse suitable for underground oil immersion type distribution transformer |
| CN101964253A (en) * | 2009-07-23 | 2011-02-02 | 上海琪瑞电气照明有限公司 | Unthreaded terminal mechanical explosion-proof dry type capacitor |
| CN101819858A (en) * | 2010-04-23 | 2010-09-01 | 上官远定 | Shell type transformer utilizing evaporative cooling for heat radiation |
| CN202031374U (en) * | 2011-04-21 | 2011-11-09 | 张冀晋 | Intensive cemetery placing room |
| CN203406519U (en) * | 2013-06-25 | 2014-01-22 | 国家电网公司 | Wall body waterproof structure of buried type transformer |
| CN103437637A (en) * | 2013-08-31 | 2013-12-11 | 德清科迪特安保设备有限公司 | Humidity resistance safety box |
| CN103538699A (en) * | 2013-10-22 | 2014-01-29 | 昆山耀和体育用品有限公司 | Waterproof hatch cover |
| CN205092215U (en) * | 2015-10-28 | 2016-03-16 | 何东升 | Outdoor drop out fuse of strenghthened type |
| CN209045333U (en) * | 2018-08-22 | 2019-06-28 | 江苏宝亨新电气有限公司 | A kind of fixed device of emitting underground transformer standby fusible core |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109215991A (en) | 2019-01-15 |
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