CN103268847A - Fuse with sleeve structure and mounting method - Google Patents
Fuse with sleeve structure and mounting method Download PDFInfo
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- CN103268847A CN103268847A CN2012105183086A CN201210518308A CN103268847A CN 103268847 A CN103268847 A CN 103268847A CN 2012105183086 A CN2012105183086 A CN 2012105183086A CN 201210518308 A CN201210518308 A CN 201210518308A CN 103268847 A CN103268847 A CN 103268847A
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- fuse
- sleeve
- inner sleeve
- outer tube
- transformer
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Abstract
The invention provides a fuse with a sleeve structure and a mounting method, aims to overcome the defects that a transformer leaks oil and is easily subjected to hot-line work, caused by installation manners of a sleeve and a fuse of a transformer in the prior art, and provides the fuse with the sleeve structure. The sleeve comprises an inner sleeve, an outer sleeve and a sleeve inner protection cover, wherein the inner sleeve is internally provided with a fuse inserting hole; the fuse is inserted into the fuse inserting hole; the sleeve inner protection cover covers outside the inner sleeve and tightly presses the fuse; the outer sleeve covers the inner sleeve and the sleeve inner protection cover; and the outer sleeve is fixedly connected with the inner sleeve. The invention further provides a mounting method of the fuse. The mounting method comprises the following steps: A, inserting the fuse into the inner sleeve; B, fastening the fuse into the inner sleeve; C, fixedly mounting the fuse with the sleeve structure on a box body of the transformer; D, electrically connecting a power cable and the fuse; and E, electrically connecting a high-voltage side winding with the fuse. According to the fuse with the sleeve structure and the mounting method disclosed by the invention, the volume of the transformer is reduced and the risk of leaking oil is reduced; and the fuse is applicable to the circumstance using the transformer.
Description
Technical field
The present invention relates to the inner components and parts of a kind of transformer, relate in particular to fuse and the installation method of the band sleeve structure of 35kV and following transformer use.
Background technology
At present, the sleeve pipe that 35kV and following transformer use and fuse are two covering devices that are installed in respectively in the oil-filled transformer casing, electric wire one end in the sleeve pipe is external and cable electrical connection at transformer tank, the other end insulate under the oil guard in transformer-cabinet and the fuse series connection, and the fuse other end is linked into transformer high-voltage side winding again.Usually 35kV and following transformer use three groups of sleeve pipes and fuse, need open six holes at transformer-cabinet and be used for mounting sleeve and fuse, have not only increased the volume of transformer, have also improved the leakage of oil risk of transformer-cabinet.Because sleeve pipe and fuse are independent the installations, when changing fuse, if forget and cut off the electricity supply, hot line job will appear, the person and equipment are all constituted potential safety hazard.As seen, existing 35kV and following transformer, required device is many, difficulty is installed, efficient is low and causes serious accidents such as transformer leakage of oil, easy hot line job easily, has increased the dangerous operation risk of transformer.
Summary of the invention
The mounting means that first purpose of the present invention is to overcome the sleeve pipe of transformer of the prior art and fuse causes transformer leakage of oil, the easy shortcoming of serious accidents such as hot line job easily, and a kind of fuse with sleeve structure is provided.
The mounting means that second purpose of the present invention is to overcome the sleeve pipe of transformer of the prior art and fuse causes transformer leakage of oil, the easy shortcoming of serious accidents such as hot line job easily, and a kind of installation method of above-mentioned fuse is provided.
The present invention realizes that the technical scheme that first goal of the invention adopts is: a kind of fuse with sleeve structure, this fuse comprises the fuse skin, quartz sand, the winding link metal guide block at fuse conductor and fuse two ends and cable link metal guide block, also comprise sleeve pipe, described sleeve pipe comprises inner sleeve, protect cover in outer tube and the sleeve pipe, be provided with the fuse patchhole in the inner sleeve, the inwall size of fuse patchhole and the outer wall dimension of fuse are corresponding, the outer wall dimension of inner sleeve one end is corresponding with the inwall size of outer tube one end, the inwall size of protecting cover in the sleeve pipe is corresponding with the outer wall dimension of inner sleeve one end, the bottom surface of protecting cover in the sleeve pipe is provided with the through hole that power cable passes, fuse inserts in the fuse patchhole of inner sleeve, the winding link metal guide block of fuse and the bottom surface of fuse patchhole contact, the cable link metal guide block of fuse is positioned at an end face edge of inner sleeve, protect in the sleeve pipe and be set between inner sleeve and the outer tube, protect the cable link metal guide block that cover is wrapped in outside the inner sleeve and compresses fuse in the sleeve pipe, outer tube one end wraps protects cover in inner sleeve and the sleeve pipe, outer tube is fixedlyed connected with inner sleeve.
The present invention realizes that the technical scheme that second goal of the invention adopts is: a kind of installation method of fuse of above-mentioned band sleeve structure may further comprise the steps:
A. the perforate of fuse along inner sleeve one end is inserted in the fuse patchhole of inner sleeve;
B. outer tube is wrapped in outside the perforate of described inner sleeve one end of steps A, outer tube is fixedlyed connected with inner sleeve, and fuse is tightened and is fixed in the fuse patchhole of inner sleeve, and the slit between outer tube and the inner sleeve is done insulation and handled;
C. will be fixedly mounted on the fuse of sleeve structure on the casing of transformer, inner sleeve one end inserts in the casing of transformer, and outer tube is arranged on outside the casing of transformer;
D. the link of power cable inserts in the outer tube and the electrical connection of the metal guide block of fuse one end;
E. the link of high-pressure side winding inserts in the inner sleeve and the electrical connection of the metal guide block of fuse one end, and electric connecting terminal carries out encapsulation process.
The invention has the beneficial effects as follows: the present invention becomes one sleeve pipe and fuse, and fuse sealing is installed in the sleeve pipe, realizes being electrically connected and the protection of transformer between power cable and the transformer high-voltage side winding.Because fuse is fixed in the sleeve pipe and becomes one, use the transformer of one group of sleeve pipe and fuse only need open a hole at transformer-cabinet, reduced the volume of transformer, reduced the leakage of oil risk of transformer-cabinet, simultaneously, when changing fuse, must cut off the electricity supply and disconnect being connected of sleeve pipe and power cable, fuse is taken out, eliminated the hidden danger of hot line job, change safer.The fuse of band sleeve structure of the present invention is not subjected to the influence of factors such as high height above sea level, environment filth, air humidity, and apparatus adaptability is strong.In the transformer of same capability, reduced by 50% device mounting, reduced the danger that transformer insulation oil is revealed, improved the safety in utilization of integral device.
The invention will be further described below in conjunction with accompanying drawing and embodiment.
Description of drawings
Fig. 1 is the structural representation of the fuse of band sleeve structure of the present invention.
Fig. 2 is the structural representation of inner sleeve of the fuse of band sleeve structure of the present invention.
Fig. 3 is the structural representation of fuse of the fuse of band sleeve structure of the present invention.
Fig. 4 is the interior structural representation of protecting cover of sleeve pipe of the fuse of band sleeve structure of the present invention.
Fig. 5 is the structural representation of outer tube of the fuse of band sleeve structure of the present invention.
Fig. 6 is the installation diagram of fuse on transformer of band sleeve structure of the present invention.
Fig. 7 is the use view of the fuse of band sleeve structure of the present invention.
Fig. 8 is the flow chart of installation method of the present invention.
In the accompanying drawing, 1 is inner sleeve, 1-1 is the fuse patchhole, 1-2 is boss, 1-3 is external screw thread, 2 is fuse, 2-1 is the fuse skin, 2-2 is cable link metal guide block, 2-3 is screwed hole, 2-4 is quartz sand, 2-5 is fuse conductor, 2-6 is winding link metal guide block, 3 is to protect cover in the sleeve pipe, 3-1 is through hole, 4 is outer tube, 4-1 is the cable connector patchhole, 5 is high-pressure side winding connector, 6 is insulating oil, 7 is the casing of transformer, 8 is flange, 9 is the casing seat pressing plate, 10 is set bolt, 11 is nut, 12 is cable connector, 13 is sealing ring.
Embodiment
Shown in accompanying drawing 1 to 7, a kind of fuse with sleeve structure of present embodiment, this fuse 2 comprise winding link metal guide block 2-6 and the cable link metal guide block 2-2 at fuse outer 2-1, quartz sand 2-4, fuse conductor 2-5 and fuse two ends.Quartz sand 2-4 is arranged between fuse conductor 2-5 and the outer 2-1 of fuse, and winding link metal guide block 2-6 and cable link metal guide block 2-2 are separately fixed on the outer 2-1 of fuse, and fuse 2 forms the structure of a sealing.Also comprise sleeve pipe, described sleeve pipe comprises protects cover 3 in inner sleeve 1, outer tube 4 and the sleeve pipe.Be provided with fuse patchhole 1-1 in the inner sleeve 1, the inwall size of fuse patchhole 1-1 is corresponding with the outer wall dimension of fuse 2, but fuse 2 inserts both interference fit of back.The outer wall dimension of inner sleeve 1 one ends is corresponding with the inwall size of outer tube 4 one ends, is used for fixedlying connected with outer tube 4.The inwall size of protecting cover 3 in the sleeve pipe is corresponding with the outer wall dimension of inner sleeve 1 one ends, protecting cover 3 in the sleeve pipe is made by insulating material, protecting cover 3 in the preferred sleeve pipe of present embodiment is the rubber integrated formed structure, and the bottom surface of protecting cover 3 in the sleeve pipe is provided with the through hole 3-1 that power cable passes.Fuse 2 inserts in the fuse patchhole 1-1 of inner sleeve 1, the winding link metal guide block 2-6 of fuse 2 and the bottom surface of fuse patchhole 1-1 contact, because the diameter of fuse patchhole 1-1 is greater than the caliber of inner sleeve 1, this structure forms an effective screens, but limiting fuses 2 is in the displacement of this side, the high-pressure side winding can be electrically connected by the endoporus of inner sleeve 1 and the winding link metal guide block 2-6 of fuse 2, the cable link metal guide block 2-2 of fuse 2 is positioned at an end face edge of inner sleeve 1, conveniently is connected with power cable.Protecting cover 3 in the sleeve pipe is arranged between inner sleeve 1 and the outer tube 4, protect the cable link metal guide block 2-2 that cover 3 is wrapped in outside the inner sleeve 1 and compresses fuse 2 in the sleeve pipe, outer tube 4 one ends wrap and protect cover 3 in inner sleeve 1 and the sleeve pipe, outer tube 4 is fixedlyed connected with inner sleeve 1, preferred inner sleeve 1 outer wall of present embodiment is provided with external screw thread, outer tube 4 inwalls are provided with internal thread, and inner sleeve 1 and outer tube 4 are threaded.Fuse 2 is inserted in the inner sleeve 1 in the mode of interference fit, by fixedlying connected of outer tube 4 and inner sleeve 1 fuse 2 sealings are installed in the sleeve pipe, fuse 2 and the sleeve pipe formula structure that becomes one, the endoporus of sleeve pipe is conveniently installed as the winding link metal guide block 2-6 that connects fuse 2, the passage of cable link metal guide block 2-2.When the fuse of the band sleeve structure of present embodiment is connected with the high-pressure side winding electric by high-pressure side winding connector 5, connect for convenient, the winding link metal guide block 2-6 of the preferred fuse 2 of present embodiment is the trapezium structure to outer lug, the size of this trapezium structure is corresponding with the insertion end size of the pre-high-pressure side winding connector 5 that inserts, interference fit when the winding link metal guide block 2-6 of fuse 2 and the insertion end of high-pressure side winding connector 5 are pegged graft.When the fuse of the band sleeve structure of present embodiment is electrically connected by cable connector 12 and power cable, connect for convenient, the conductor of the preferred fuse 2 of present embodiment is provided with the screwed hole 2-3 of fixedlying connected with the pre-cable connector 12 that inserts, be provided with cable connector patchhole 4-1 in the outer tube 4, the inwall size of this cable connector patchhole 4-1 is corresponding with the insertion end size of the pre-cable connector 12 that inserts, the cable link metal guide block 2-2 of fuse 2 is provided with the through hole that cable connector passes, cable connector 12 inserts in the cable connector patchhole 4-1 of outer tube 4, the insertion end of cable connector 12 is passed the through hole 3-1 that protects cover 3 in the sleeve pipe successively, cable link metal guide block 2-2, the screwed hole 2-3 of the external screw thread that arranges on the insertion end of cable connector 12 and fuse 2 is threaded, and realizes the electrical connection of cable connector 12 and fuse 2.Install for convenience, inner sleeve 1 outer wall of the fuse of the band sleeve structure of present embodiment is provided with the boss 1-2 of fixed installation usefulness.
During actual the use, the inner sleeve 1 of the fuse of the band sleeve structure of present embodiment is inserted in the installing hole of reserving on the casing 7 of transformer, in the insulating oil 6 of the casing 7 of inner sleeve 1 one ends immersion transformer, outer tube 4 is positioned at outside the casing 7 of transformer, flange 8 on the casing 7 of boss 1-2 one side of inner sleeve 1 and transformer is close to, be provided with sealing ring 13 between the boss 1-2 of inner sleeve 1 and the flange 8, flange 8 is provided with set bolt 10, casing seat pressure 9 compresses the boss 1-2 opposite side of inner sleeve 1, is fixed on the set bolt 10 by nut 11.In the casing 7 of transformer, the high-pressure side winding is electrically connected by the winding link metal guide block 2-6 of high-pressure side winding connector 5 and fuse 2.Outside the casing 7 of transformer, power cable is electrically connected by the cable link metal guide block 2-2 of cable connector 12 and fuse 2.Use the fuse of the band sleeve structure of present embodiment, one group of sleeve pipe and fuse 2 are installed only to be needed to open a hole at the casing 7 of transformer, reduced the volume of transformer, reduced the risk of casing 7 leakage of oils of transformer, simultaneously, when changing fuse 2, must cut off the electricity supply and disconnect being connected of sleeve pipe and power cable, fuse 2 is taken out, eliminated the hidden danger of hot line job, change safer.
As shown in Figure 8, a kind of installation method of fuse of above-mentioned band sleeve structure may further comprise the steps:
A. the perforate of fuse along inner sleeve one end is inserted in the fuse patchhole of inner sleeve;
B. outer tube is wrapped in outside the perforate of described inner sleeve one end of steps A, outer tube is fixedlyed connected with inner sleeve, and fuse is tightened and is fixed in the fuse patchhole of inner sleeve, and the slit between outer tube and the inner sleeve is done insulation and handled;
C. will be fixedly mounted on the fuse of sleeve structure on the casing of transformer, inner sleeve one end inserts in the casing of transformer, and outer tube is arranged on outside the casing of transformer;
D. the link of power cable inserts in the outer tube and the electrical connection of the metal guide block of fuse one end, connect for convenient, can between fuse and power cable cable connector be set, the metal guide block of fuse one end is electrically connected by cable connector and power cable;
E. the link of high-pressure side winding inserts in the inner sleeve and the electrical connection of the metal guide block of fuse one end, electric connecting terminal carries out encapsulation process, connect for convenient, high-pressure side winding connector can be set between fuse and high-pressure side winding, and the metal guide block of the fuse other end is connected with the high-pressure side winding electric by high-pressure side winding connector.
Adopt above-mentioned installation method, fuse sealing is installed in the sleeve pipe, two ends are connected with power cable, transformer high-voltage side winding electric respectively, being electrically connected and the protection of transformer between realization power cable and the transformer high-voltage side winding.Because fuse is fixed in the sleeve pipe, one group of sleeve pipe and fuse are installed only to be needed to open a hole at transformer-cabinet, reduced the volume of transformer, reduced the leakage of oil risk of transformer-cabinet, simultaneously, when changing fuse, must cut off the electricity supply and disconnect being connected of sleeve pipe and power cable, fuse is taken out, eliminated the hidden danger of hot line job, change safer.
Claims (7)
1. fuse with sleeve structure, this fuse comprises the fuse skin, quartz sand, the winding link metal guide block at fuse conductor and fuse two ends and cable link metal guide block, it is characterized in that, also comprise sleeve pipe, described sleeve pipe comprises inner sleeve (1), protect cover (3) in outer tube (4) and the sleeve pipe, be provided with fuse patchhole (1-1) in the inner sleeve (1), the inwall size of fuse patchhole (1-1) is corresponding with the outer wall dimension of fuse (2), the outer wall dimension of inner sleeve (1) one end is corresponding with the inwall size of outer tube (4) one ends, the inwall size of protecting cover (3) in the sleeve pipe is corresponding with the outer wall dimension of inner sleeve (1) one end, the bottom surface of protecting cover (3) in the sleeve pipe is provided with the through hole (3-1) that power cable passes, fuse (2) inserts in the fuse patchhole (1-1) of inner sleeve (1), the winding link metal guide block (2-6) of fuse (2) contacts with the bottom surface of fuse patchhole (1-1), the cable link metal guide block (2-2) of fuse (2) is positioned at an end face edge of inner sleeve (1), protecting cover (3) in the sleeve pipe is arranged between inner sleeve (1) and the outer tube (4), protect the cable link metal guide block (2-2) that cover (3) is wrapped in outside the inner sleeve (1) and compresses fuse (2) in the sleeve pipe, outer tube (4) one ends wrap protects cover (3) in inner sleeve (1) and the sleeve pipe, outer tube (4) is fixedlyed connected with inner sleeve (1).
2. a kind of fuse with sleeve structure according to claim 1 is characterized in that, described inner sleeve (1) outer wall is provided with external screw thread, and outer tube (4) inwall is provided with internal thread, and inner sleeve (1) and outer tube (4) are threaded.
3. a kind of fuse with sleeve structure according to claim 1 is characterized in that, protecting cover (3) in the described sleeve pipe is the rubber integrated formed structure.
4. a kind of fuse with sleeve structure according to claim 1, it is characterized in that, the winding link metal guide block (2-6) of described fuse (2) is the trapezium structure to outer lug, and the size of this trapezium structure is corresponding with the insertion end size of the pre-high-pressure side winding connector (5) that inserts.
5. a kind of fuse with sleeve structure according to claim 1, it is characterized in that, the conductor (2-5) of described fuse (2) is provided with the screwed hole (2-3) of fixedlying connected with the pre-cable connector (12) that inserts, (4) are provided with cable connector patchhole (4-1) in the outer tube, the inwall size of this cable connector patchhole (4-1) is corresponding with the insertion end size of the pre-cable connector (12) that inserts, and the cable link metal guide block (2-2) of fuse (2) is provided with the through hole that cable connector (12) passes.
6. a kind of fuse with sleeve structure according to claim 1 is characterized in that, described inner sleeve (1) outer wall is provided with the boss (1-2) of fixed installation usefulness.
7. the installation method of the fuse of the described band sleeve structure of claim 1 is characterized in that, may further comprise the steps:
A. the perforate of fuse along inner sleeve one end is inserted in the fuse patchhole of inner sleeve;
B. outer tube is wrapped in outside the perforate of described inner sleeve one end of steps A, outer tube is fixedlyed connected with inner sleeve, and fuse is tightened and is fixed in the fuse patchhole of inner sleeve, and the slit between outer tube and the inner sleeve is done insulation and handled;
C. will be fixedly mounted on the fuse of sleeve structure on the casing of transformer, inner sleeve one end inserts in the casing of transformer, and outer tube is arranged on outside the casing of transformer;
D. the link of power cable inserts in the outer tube and the electrical connection of the metal guide block of fuse one end;
E. the link of high-pressure side winding inserts in the inner sleeve and the electrical connection of the metal guide block of fuse one end, and electric connecting terminal carries out encapsulation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210518308.6A CN103268847B (en) | 2012-12-06 | 2012-12-06 | Fuse with sleeve structure and mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210518308.6A CN103268847B (en) | 2012-12-06 | 2012-12-06 | Fuse with sleeve structure and mounting method |
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| Publication Number | Publication Date |
|---|---|
| CN103268847A true CN103268847A (en) | 2013-08-28 |
| CN103268847B CN103268847B (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210518308.6A Active CN103268847B (en) | 2012-12-06 | 2012-12-06 | Fuse with sleeve structure and mounting method |
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| CN (1) | CN103268847B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037032A (en) * | 2014-06-30 | 2014-09-10 | 国家电网公司 | Plugging cover of high voltage fuse |
| CN104377476A (en) * | 2014-11-29 | 2015-02-25 | 华北电力大学（保定） | Adapter for connection of power transformer bushing tap |
| CN107424789A (en) * | 2017-08-03 | 2017-12-01 | 江苏齐正电力技术有限公司 | A kind of transformer hermetic terminal and its installation manufacture craft |
| CN109036778A (en) * | 2018-08-22 | 2018-12-18 | 江苏宝亨新电气有限公司 | A kind of standby fusible core fuel tank mounting structure |
| WO2020134174A1 (en) * | 2018-12-27 | 2020-07-02 | 南京萨特科技发展有限公司 | High-breaking miniature fuse and method for preparing same |
| CN114203495A (en) * | 2020-09-17 | 2022-03-18 | 株式会社裕罗 | Fuse integrated type electric component |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3972015A (en) * | 1973-08-03 | 1976-07-27 | Rte Corporation | Heat insulated fused high voltage bushing |
| CN2440263Y (en) * | 2000-08-26 | 2001-07-25 | 韩秀芹 | Sleeve fuse |
| CN201075367Y (en) * | 2007-08-30 | 2008-06-18 | 谭迪 | High voltage fuse for ground-embedded type voltage transformer |
| KR101015135B1 (en) * | 2008-08-20 | 2011-02-16 | 주식회사 평일 | An elbow connector for transformer with fuse mounted inside |
| CN202940205U (en) * | 2012-12-06 | 2013-05-15 | 深圳市罗庚电气有限公司 | Fuse having sleeve structure |
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2012
- 2012-12-06 CN CN201210518308.6A patent/CN103268847B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3972015A (en) * | 1973-08-03 | 1976-07-27 | Rte Corporation | Heat insulated fused high voltage bushing |
| CN2440263Y (en) * | 2000-08-26 | 2001-07-25 | 韩秀芹 | Sleeve fuse |
| CN201075367Y (en) * | 2007-08-30 | 2008-06-18 | 谭迪 | High voltage fuse for ground-embedded type voltage transformer |
| KR101015135B1 (en) * | 2008-08-20 | 2011-02-16 | 주식회사 평일 | An elbow connector for transformer with fuse mounted inside |
| CN202940205U (en) * | 2012-12-06 | 2013-05-15 | 深圳市罗庚电气有限公司 | Fuse having sleeve structure |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037032A (en) * | 2014-06-30 | 2014-09-10 | 国家电网公司 | Plugging cover of high voltage fuse |
| CN104377476A (en) * | 2014-11-29 | 2015-02-25 | 华北电力大学（保定） | Adapter for connection of power transformer bushing tap |
| CN104377476B (en) * | 2014-11-29 | 2016-05-11 | 华北电力大学（保定） | Power transformer casing tap adaptor for connecting |
| CN107424789A (en) * | 2017-08-03 | 2017-12-01 | 江苏齐正电力技术有限公司 | A kind of transformer hermetic terminal and its installation manufacture craft |
| CN109036778A (en) * | 2018-08-22 | 2018-12-18 | 江苏宝亨新电气有限公司 | A kind of standby fusible core fuel tank mounting structure |
| WO2020134174A1 (en) * | 2018-12-27 | 2020-07-02 | 南京萨特科技发展有限公司 | High-breaking miniature fuse and method for preparing same |
| CN114203495A (en) * | 2020-09-17 | 2022-03-18 | 株式会社裕罗 | Fuse integrated type electric component |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103268847B (en) | 2015-05-27 |
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