CN112563091A - High-voltage distribution transformer drop-out fuse - Google Patents
High-voltage distribution transformer drop-out fuse Download PDFInfo
- Publication number
- CN112563091A CN112563091A CN202011368856.6A CN202011368856A CN112563091A CN 112563091 A CN112563091 A CN 112563091A CN 202011368856 A CN202011368856 A CN 202011368856A CN 112563091 A CN112563091 A CN 112563091A
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- Prior art keywords
- fuse
- shielding plate
- insulator
- voltage
- voltage distribution
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- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/54—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H2085/0225—Means for preventing discharge, e.g. corona ring
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Abstract
The invention provides a high-voltage distribution transformer drop-out fuse which comprises a fixing module, a first connecting module, a second connecting module and a third connecting module, wherein the fixing module comprises a mounting plate and an insulator; the fuse tube comprises a fuse tube and a fuse wire, and the fuse wire is arranged inside the fuse tube; the insulation module comprises a high-voltage insulation baffle plate arranged on the side surface of the insulator, and a fixing ring is arranged between the high-voltage insulation baffle plate and the insulator; because of high-voltage insulation shielding plate can bear higher voltage, and not punctured, go up the pile head simultaneously and have certain distance between the insulation shielding plate, go up the pile head and can not discharge to lower pile head to protection distribution transformer maintainer safety reduces the emergence of the personal, equipment casualties incident, satisfies in the anti-accident requirement of south net to the relevant requirement of distribution transformer maintenance work, reduces the power failure scope, can accomplish the maintenance work of trouble distribution transformer safely, ensures personal safety.
Description
Technical Field
The invention relates to the technical field of electric power tools, in particular to a high-voltage distribution transformer drop-out fuse.
Background
The drop-out fuse is a short-circuit protection switch most commonly used for 10kV distribution line branch lines and distribution transformers, has the characteristics of economy, convenience in operation, strong outdoor environment adaptability and the like, and is widely applied to primary sides of the 10kV distribution lines and the distribution transformers for protection and equipment switching and switching operation. When the distribution transformer is overhauled, the overhaul work safety distance is met, under the condition that a higher-level power supply is not needed to be stopped, the distribution transformer is only needed to be overhauled by power cut, the distribution transformer drop-out fuse is pulled open, the grounding wire is hung at the high-low voltage pile head of the distribution transformer, the distribution transformer drop-out fuse can work, however, in the actual work, the air insulation between the upper pile head and the lower pile head of the drop-out fuse can be broken down by the high voltage of the upper pile head, the upper pile head of the drop-out fuse discharges to the lower pile head, so that the overhaul personnel on the distribution.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
Therefore, the technical problem to be solved by the invention is to overcome the defects of low wiring efficiency and poor wiring effect of non-professional personnel during operation in the prior art, thereby providing a quick wiring tool for low-voltage wires.
In order to solve the technical problems, the invention provides the following technical scheme: a high-voltage distribution transformer drop-out fuse comprises a fixing module, a first connecting module, a second connecting module and a first connecting module, wherein the fixing module comprises a mounting plate and an insulator; the fuse tube comprises a fuse tube and a fuse wire, and the fuse wire is arranged inside the fuse tube; and the insulation module comprises a high-voltage insulation baffle plate arranged on the side surface of the insulator, and a fixing ring is arranged between the high-voltage insulation baffle plate and the insulator.
As a preferred scheme of the high-voltage distribution transformer drop-out fuse, the invention comprises the following steps: the mounting plate is arranged in the middle of the insulator and is mounted on the high-voltage side of a transformer or the joint of a mutual inductor, a capacitor and a circuit on a telegraph pole.
As a preferred scheme of the high-voltage distribution transformer drop-out fuse, the invention comprises the following steps: the fuse tube further comprises an upper moving contact and a lower moving contact, the upper moving contact and the lower moving contact are arranged at the upper end and the lower end of the fuse tube, and an upper static contact is further arranged at the upper end of the fuse tube.
As a preferred scheme of the high-voltage distribution transformer drop-out fuse, the invention comprises the following steps: the fuse wire material is made of copper-silver alloy.
As a preferred scheme of the high-voltage distribution transformer drop-out fuse, the invention comprises the following steps: and a pressure releasing cap is arranged at the upper end of the melting tube, and a melting piece is arranged in the pressure releasing cap.
As a preferred scheme of the high-voltage distribution transformer drop-out fuse, the invention comprises the following steps: the high-voltage insulation baffle plate comprises a transverse baffle plate and a vertical baffle plate, the transverse baffle plate is parallel to the insulator, and the vertical baffle plate is perpendicular to the insulator.
As a preferred scheme of the high-voltage distribution transformer drop-out fuse, the invention comprises the following steps: the spring buckle is arranged at the joint of the transverse shielding plate and the vertical shielding plate and used for attaching the transverse shielding plate and the vertical shielding plate.
As a preferred scheme of the high-voltage distribution transformer drop-out fuse, the invention comprises the following steps: the fixing ring is provided with a pull ring, and the pull ring is connected with the fusion tube.
The invention has the beneficial effects that: because of high-voltage insulation shielding plate can bear higher voltage, and not punctured, go up the pile head simultaneously and have certain distance between the insulation shielding plate, go up the pile head and can not discharge to lower pile head to protection distribution transformer maintainer safety reduces the emergence of the personal, equipment casualties incident, satisfies in the anti-accident requirement of south net to the relevant requirement of distribution transformer maintenance work, reduces the power failure scope, can accomplish the maintenance work of trouble distribution transformer safely, ensures personal safety.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a structural schematic diagram of a high-voltage distribution transformer drop-out fuse in a conventional state;
FIG. 2 is a schematic structural view of a high-voltage distribution transformer drop-out fuse after a fuse tube falls;
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Example 1
The present embodiment provides a high-voltage distribution drop-out fuse, as shown in fig. 1-2, including,
the fixing module 100 comprises a mounting plate 101 and an insulator 102, wherein the insulator 102 is arranged on the mounting plate 101; a fuse tube 200 including a fuse tube 201 and a fuse 202, the fuse 202 being disposed inside the fuse tube 201; and the insulation module 300 comprises a high-voltage insulation baffle plate 301 arranged on the side surface of the insulator 102, a fixing ring 302 is arranged between the high-voltage insulation baffle plate 301 and the insulator 102, and the fixing ring 302 is used for fixing the high-voltage insulation baffle plate 301 on the insulator 102.
The mounting plate 101 is arranged in the middle of the insulator 102, and the mounting plate 101 is mounted on a high-voltage side of a transformer or a joint of a transformer and a capacitor and a line on a telegraph pole.
The fuse tube 200 further comprises an upper moving contact 203 and a lower moving contact 204 which are arranged at the upper end and the lower end of the fuse tube 201, and an upper fixed contact 205 is arranged at the upper end of the fuse tube 201.
The fuse 202 is made of copper-silver alloy.
The upper end of the melting tube 201 is provided with a pressure releasing cap 206, and a fuse piece 206a is arranged in the pressure releasing cap 206.
The high-voltage insulating shielding plate 301 includes a horizontal shielding plate 301a and a vertical shielding plate 301b, the horizontal shielding plate 301a is disposed parallel to the insulator 102, and the vertical shielding plate 301b is disposed perpendicular to the insulator 102.
A spring buckle 301c is arranged at the joint of the horizontal shielding plate 301a and the vertical shielding plate 301b, and the spring buckle 301c is used for attaching the horizontal shielding plate 301a and the vertical shielding plate 301 b.
The fixed ring 302 is provided with a pull ring 302a, and the pull ring 302a is connected with the fusion tube 201. The fixed ring 302 is hinged to the insulator 102, and in a conventional state, the high-voltage insulating plate 301 is attached to the insulator 102, and after the fuse tube 200 falls, the fuse tube 201 can pull the pull ring 302a, so that the fixed ring 302 can rotate by 90 degrees, the high-voltage insulating plate 301 is transversely arranged in the middle of the falling fuse tube 201, and the upper pile head and the lower pile head are shielded.
The mounting plate 101 is a square long plate, and is fixed at the middle part of the insulator 102 by bolts, the other end is fixed at a position where a distribution transformer drop-out fuse is needed to be used, so as to fix the fuse tube 200 and the insulating module 300, the fuse 202 passes through the fuse tube 201, and the two ends are screwed down.
A fuse piece 206a is arranged in the pressure releasing cap 206, the melting point of the fuse piece 206a is very low, and when a large current is cut off, the thin fuse piece of the upper end cap is melted to form double-end exhaust; when the small current is cut off, the thin fuse sheet of the upper end cap does not act, and single-end exhaust is formed.
In a normal state, a vertical shielding plate 301b perpendicular to the insulator 102 is accommodated in a horizontal shielding plate 301a parallel to the insulator 102 through a spring buckle 301c, and the high-voltage insulating shielding plate 301 is fixed on the insulator 102 through a circular fixing ring 302; when the high-voltage distribution transformer is overhauled or a fault short circuit is generated, the fuse tube 200 falls, the fuse tube 201 can pull the pull ring 302a, the fixing ring 302 can rotate 90 degrees, the high-voltage insulating plate 301 is transversely arranged in the middle of the falling fuse tube 201, and the upper pile head and the lower pile head are shielded; receive the effect of gravity simultaneously, spring buckle 301c can loosen, and perpendicular shielding plate 301b separates with horizontal shielding plate 301a, sets up perpendicularly, erects baffle 301b and shelters from the lower pile head outside of connecting at the insulator 102 lower extreme, wraps up the below from two faces, and more stable assurance is insulating.
The invention has the beneficial effects that: the high-voltage distribution transformer drop-out fuse is simple in structure, low in price, convenient to maintain and small in size, and can provide guarantee for the range which cannot be protected by relay protection, meanwhile, after the high-voltage insulating shielding plate 301 is additionally arranged, physical connection is formed between the upper pile head and the lower pile head, the high voltage of the upper pile head cannot puncture the high-voltage insulating shielding plate 301, the upper pile head cannot discharge electricity to the lower pile head of the drop-out fuse, so that the personal safety of distribution transformer maintainers is guaranteed, the occurrence of personal and equipment casualties is reduced, the requirements related to distribution transformer maintenance work in the requirement of south network reverse accidents are met, the power failure range is reduced, the maintenance work of fault distribution transformer can be safely completed, and the personal safety is guaranteed.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (8)
1. A high-voltage distribution transformer drop-out fuse is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the fixing module (100) comprises a mounting plate (101) and an insulator (102), wherein the insulator (102) is arranged on the mounting plate (101);
the fuse tube (200) comprises a fuse tube (201) and a fuse wire (202), and the fuse wire (202) is arranged inside the fuse tube (201); and the number of the first and second groups,
the insulating module (300) comprises a high-voltage insulating shielding plate (301) arranged on the side face of the insulator (102), and a fixing ring (302) is arranged between the high-voltage insulating shielding plate (301) and the insulator (102).
2. A high-voltage distribution and transformation drop-out fuse according to claim 1, characterized in that: the mounting plate (101) is arranged in the middle of the insulator (102), and the mounting plate (101) is mounted on the high-voltage side of a transformer or the connection between a transformer and a capacitor on a telegraph pole and a line.
3. A high-voltage distribution and transformation drop-out fuse according to claim 2, wherein: the fuse tube (200) further comprises an upper moving contact (203) arranged at the upper end of the fuse tube (201) and a lower moving contact (204) arranged at the lower end of the fuse tube, and an upper static contact (205) is further arranged at the upper end of the fuse tube (201).
4. A high-voltage distribution and transformation drop-out fuse according to claim 3, wherein: the fuse wire (202) is made of copper-silver alloy.
5. The high-voltage distribution and transformation drop-out fuse according to claim 4, wherein: a pressure releasing cap (206) is arranged at the upper end of the melting tube (201), and a melting piece (206a) is arranged in the pressure releasing cap (206).
6. A high-voltage distribution and transformation drop-out fuse according to claim 5, wherein: the high-voltage insulating shielding plate (301) comprises a transverse shielding plate (301a) and a vertical shielding plate (301b), the transverse shielding plate (301a) and the insulator (102) are arranged in parallel, and the vertical shielding plate (301b) and the insulator (102) are arranged vertically.
7. A high-voltage distribution and transformation drop-out fuse according to claim 6, wherein: the connecting part of the transverse shielding plate (301a) and the vertical shielding plate (301b) is provided with a spring buckle (301c), and the spring buckle (301c) is used for attaching the transverse shielding plate (301a) and the vertical shielding plate (301 b).
8. A high-voltage distribution and transformation drop-out fuse according to claim 7, wherein: the fixing ring (302) is provided with a pull ring (302a), and the pull ring (302a) is connected with the fusion tube (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011368856.6A CN112563091A (en) | 2020-11-30 | 2020-11-30 | High-voltage distribution transformer drop-out fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011368856.6A CN112563091A (en) | 2020-11-30 | 2020-11-30 | High-voltage distribution transformer drop-out fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112563091A true CN112563091A (en) | 2021-03-26 |
Family
ID=75045162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011368856.6A Withdrawn CN112563091A (en) | 2020-11-30 | 2020-11-30 | High-voltage distribution transformer drop-out fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112563091A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB329638A (en) * | 1928-11-21 | 1930-05-21 | Colin Edward Cruttwell | Improvements in or relating to containers, for example, containers enclosing electrically fusible elements, liable to be subjected to relatively large internal fluid pressures |
| JPH08106956A (en) * | 1994-10-03 | 1996-04-23 | Chubu Electric Power Co Inc | Connector with built-in lead-in fuse |
| CN2296075Y (en) * | 1997-03-11 | 1998-10-28 | 马中山 | Outdoor arc blast drop down high voltage fuse |
| CN102064056A (en) * | 2010-12-30 | 2011-05-18 | 袁昌辉 | 0.4kV outdoor low-voltage isolating switch with fuse and anti-falling protective cover |
| CN103227427A (en) * | 2013-04-02 | 2013-07-31 | 国家电网公司 | Special insulation barrier for drop-out fuse protector |
| CN203233083U (en) * | 2013-04-02 | 2013-10-09 | 国家电网公司 | Special drop type fuse insulating baffle plate |
| CN205543962U (en) * | 2016-03-04 | 2016-08-31 | 中国石油天然气股份有限公司 | Insulating baffle of anti -drop |
| CN208315304U (en) * | 2018-03-05 | 2019-01-01 | 沧能电力装备股份有限公司 | A kind of detachable falls formula arrester |
| CN209183493U (en) * | 2019-02-11 | 2019-07-30 | 江西晶鼎电气有限公司 | A kind of outdoor high-voltage drop type fuse insulating sheath |
| CN209232659U (en) * | 2019-02-25 | 2019-08-09 | 大同市富达昌煤机有限责任公司 | A kind of 10KV vacuum conversion separation switch |
| CN210866096U (en) * | 2019-11-05 | 2020-06-26 | 常州市武进水利电力器材有限公司 | Outdoor special high-voltage drop-out fuse |
-
2020
- 2020-11-30 CN CN202011368856.6A patent/CN112563091A/en not_active Withdrawn
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB329638A (en) * | 1928-11-21 | 1930-05-21 | Colin Edward Cruttwell | Improvements in or relating to containers, for example, containers enclosing electrically fusible elements, liable to be subjected to relatively large internal fluid pressures |
| JPH08106956A (en) * | 1994-10-03 | 1996-04-23 | Chubu Electric Power Co Inc | Connector with built-in lead-in fuse |
| CN2296075Y (en) * | 1997-03-11 | 1998-10-28 | 马中山 | Outdoor arc blast drop down high voltage fuse |
| CN102064056A (en) * | 2010-12-30 | 2011-05-18 | 袁昌辉 | 0.4kV outdoor low-voltage isolating switch with fuse and anti-falling protective cover |
| CN103227427A (en) * | 2013-04-02 | 2013-07-31 | 国家电网公司 | Special insulation barrier for drop-out fuse protector |
| CN203233083U (en) * | 2013-04-02 | 2013-10-09 | 国家电网公司 | Special drop type fuse insulating baffle plate |
| CN205543962U (en) * | 2016-03-04 | 2016-08-31 | 中国石油天然气股份有限公司 | Insulating baffle of anti -drop |
| CN208315304U (en) * | 2018-03-05 | 2019-01-01 | 沧能电力装备股份有限公司 | A kind of detachable falls formula arrester |
| CN209183493U (en) * | 2019-02-11 | 2019-07-30 | 江西晶鼎电气有限公司 | A kind of outdoor high-voltage drop type fuse insulating sheath |
| CN209232659U (en) * | 2019-02-25 | 2019-08-09 | 大同市富达昌煤机有限责任公司 | A kind of 10KV vacuum conversion separation switch |
| CN210866096U (en) * | 2019-11-05 | 2020-06-26 | 常州市武进水利电力器材有限公司 | Outdoor special high-voltage drop-out fuse |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210326 |