CN110911137B - Voltage transformer protective cover capable of carrying out live working and insulating clamp - Google Patents
Voltage transformer protective cover capable of carrying out live working and insulating clamp Download PDFInfo
- Publication number
- CN110911137B CN110911137B CN201911131802.5A CN201911131802A CN110911137B CN 110911137 B CN110911137 B CN 110911137B CN 201911131802 A CN201911131802 A CN 201911131802A CN 110911137 B CN110911137 B CN 110911137B
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- protective cover
- voltage transformer
- main body
- cover main
- clamping
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- 230000001681 protective effect Effects 0.000 title claims abstract description 137
- 238000009413 insulation Methods 0.000 claims abstract description 23
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims 1
- 239000004945 silicone rubber Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 description 4
- 241001465754 Metazoa Species 0.000 description 3
- 241000699670 Mus sp. Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009194 climbing Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
- H01B17/40—Cementless fittings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/58—Tubes, sleeves, beads, or bobbins through which the conductor passes
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulating Bodies (AREA)
Abstract
The invention discloses a voltage transformer protective cover capable of carrying out live working, which comprises a protective cover main body with an opening facing downwards and capable of being sleeved into a containing cavity of a voltage transformer, and a protective cylinder capable of wrapping a voltage transformer cable and horizontally arranged on the left side of the protective cover main body and integrally formed with the protective cover main body; the top and the bottom of the protective cylinder are provided with first slits along the axial direction of the protective cylinder, the slits are gradually enlarged from left to right, and the top of the protective cover main body is provided with second slits coplanar with the first slits; a fourth slit connected with the third slit is formed in the left side of the protective cover main body; the phase line identification piece can be detachably arranged at the top of the protective cover main body. The insulation clamp comprises a clamping part and a locking part which can be detachably connected with the insulation rod; the clamping part is provided with two semicircular clamping grooves which are suitable for the insertion of the protective cylinder; the clamping part is provided with a through hole which is positioned between the two clamping grooves and is suitable for the cable to pass through; the bottom side of the clamping part is provided with a cable opening suitable for the cable to move to the through hole; the locking part is arranged at the left side of the clamping part and is fixed on the clamping part.
Description
Technical Field
The invention belongs to the technical field of insulation protection of power equipment, and particularly relates to a voltage transformer protective cover capable of carrying out live working and an insulation clamp.
Background
A voltage transformer (english name Potential transformer, PT) is an instrument for converting a voltage on a line, similar to a transformer. The purpose of voltage transformation of the transformer is to transmit electric energy, the capacity is large, and kilovolt ampere or megavolt ampere is generally used as a calculation unit; the purpose of voltage transformer voltage transformation is mainly to supply power to measuring instrument and relay protection device, to measure voltage, power and electric energy of line, or to protect valuable equipment, motor and transformer in line when line is faulty, so the capacity of voltage transformer is very small, generally only several volt-amperes, tens of volt-amperes, and not more than one kilovolt-ampere at maximum.
At present, a plurality of unexpected power failure faults exist in the medium-voltage tower, wherein the faults comprise short circuit faults caused by climbing of mice and other small animals; once the small animal touches both phase lines simultaneously, a butt short is formed resulting in line failure.
It can be seen that there is a need for improvements and improvements in the art.
Disclosure of Invention
In view of the shortcomings of the prior art, one of the purposes of the invention is to provide a protective cover for a voltage transformer capable of live working, which has a unique and novel structure, is simple and convenient to install, can be operated anywhere and anytime without a lifting table, power supply supplement and live operation of a large-sized vehicle, and can be installed on the voltage transformer in a live state.
In order to achieve one of the above purposes, the present invention adopts the following technical scheme:
A voltage transformer protective cover capable of carrying out live working comprises a protective cover main body and a protective cylinder, wherein the protective cylinder is used for wrapping a voltage transformer cable and is integrally formed with the protective cover main body; the protective cover main body is provided with a containing cavity which is downward in opening and can be sleeved with a voltage transformer; the protective cylinder is horizontally arranged on the left side of the protective cover main body; the top of the protective cylinder is provided with a first slit along the axial direction of the protective cylinder, and the top of the protective cover main body is correspondingly provided with a second slit coplanar with the first slit; the bottom of the protective cylinder is provided with a third slit with a slit opening gradually enlarged from left to right along the axial direction of the protective cylinder, and the left side of the protective cover main body is correspondingly provided with a fourth slit connected with the third slit; the top of the protective cover main body is detachably connected with a phase line identification piece.
In the protective cover of the voltage transformer capable of live working, the protective cover main body and the protective cylinder are made of transparent PC materials.
In the protective cover of the voltage transformer capable of carrying out live working, an arc through hole is formed in the top of the protective cover main body; the bottom of the phase line identification piece is provided with a clamping block which is clamped with the arc-shaped through hole; the phase line identification member is semicircular in shape from a top view.
In the protective cover of the voltage transformer capable of carrying out live working, the phase line identification piece is formed by pressing silicon rubber.
In the live-wire operation voltage transformer protective cover, the bottom of the protective cover main body extends outwards to form an inclined downward skirt edge.
In addition, the second object of the invention is to provide an insulation clamp which is ingenious in design and simple to use, and is used for matching with the electrified installation work of the protective cover of the voltage transformer.
In order to achieve the second purpose, the invention adopts the following technical scheme:
An insulation clamp comprises a clamping part for clamping the protective cover of the voltage transformer capable of live working and a locking part capable of being detachably connected with an insulation rod; the clamping part is provided with two semicircular clamping grooves which are suitable for the insertion of the protective cylinder; the clamping part is provided with a through hole which is positioned between the two clamping grooves and is suitable for the passage of a voltage transformer cable; the clamping part is provided with a cable opening at the bottom side thereof, which is suitable for the cable of the voltage transformer to move to the through hole; the lock catch part is arranged on the left side of the clamping part and is fixed on the clamping part.
In the insulation clamp, the clamping parts are respectively provided with supporting bars used for clamping the protection cylinder at the outer sides of the clamping grooves.
In the insulating clamp, the locking part and the clamping part are integrally formed.
In the insulating clamp, the insulating clamp is made of glass fibers.
The beneficial effects are that:
the invention provides a protective cover of a voltage transformer capable of live working, which has a unique and novel structure, is simple and convenient to install, can be operated anytime and anywhere, does not need a lifting table, power supply supplement and a large-sized vehicle capable of live working, and is installed on the voltage transformer in a live state.
In addition, the invention also provides an insulating clamp which is ingenious in design and is used for clamping the protective cover of the voltage transformer in cooperation with the installation work of the protective cover of the voltage transformer, and the protective cover of the voltage transformer is installed on the voltage transformer in an electrified state.
Drawings
Fig. 1 is a structural perspective view of a protective cover of a voltage transformer capable of live working.
Fig. 2 is a structural perspective view II of the protective cover of the voltage transformer capable of live working.
Fig. 3 is a perspective view of an insulation fixture according to the present invention.
Fig. 4 is a structural perspective view of a second embodiment of the insulating fixture provided by the present invention.
Fig. 5 is a top view of an insulation jig provided by the present invention.
Fig. 6 is a perspective view of the structure of the phase line identifier in the protective cover for the live-line voltage transformer.
Detailed Description
The invention provides a voltage transformer protective cover capable of carrying out live working and an insulating clamp, which are used for making the purposes, technical schemes and effects of the invention clearer and more definite. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, 2 and 6, the present invention provides a protective cover for a voltage transformer capable of live working, which comprises a protective cover main body 1 and a protective cylinder 2 for wrapping a voltage transformer cable and integrally formed with the protective cover main body 1; the protective cover main body 1 is provided with a containing cavity (not marked in the figure) which is downward in opening and can be sleeved into a voltage transformer; the protective cylinder 2 is horizontally arranged on the left side of the protective cover main body 1; the top of the protective cylinder 2 is provided with a first slit 21 along the axial direction thereof, and the top of the protective cover main body 1 is correspondingly provided with a second slit 11 coplanar with the first slit 21; the bottom of the protective cylinder 2 is provided with a third slit 22 with a slit opening which is enlarged from left to right along the axial direction, and the left side of the protective cover main body 1 is correspondingly provided with a fourth slit 14 connected with the third slit 22.
In this embodiment, the accommodating chamber is cylindrical, and the shield main body is cylindrical; the thickness of the protective cover main body is 2mm, the inner diameter 2 is 74mm, and the protective cover main body can be tightly buckled (or sleeved) on PT equipment; the internal diameter of the protection cylinder is 34mm, so that the PT outlet is convenient to run.
The second slit 11 and the first slit 21 have a slit width of 2 mm. The seam of the fourth slit 14 is unchanged, and the seam of the third slit 22 gradually increases from left to right (i.e., from the outer side to the inner side of the protective barrel) from 2mm to 7mm, and the seam of the fourth slit 14 is 7mm, so that the purpose is to ensure that the voltage transformer cable can move from bottom to top to the inner cavity of the protective barrel after the protective barrel is broken off. When the protective cylinder is forcibly broken towards two sides, a large-angle opening is formed, and a large opening is formed at the bottom side of the protective cover main body and the bottom side of the protective cylinder, so that a cable on PT equipment can be conveniently buckled.
In addition, the phase line identification piece 4 is detachably connected to the top of the protective cover main body 1. Specifically, the top of the protective cover main body 1 is provided with an arc through hole 12; the bottom of the phase line identifier 4 is provided with a clamping block 41 which is clamped with the arc-shaped through hole 12; the clamping block 41 is arc-shaped.
The phase wire identification member 4 is semicircular in shape in plan view.
The phase line identification piece 4 is formed by pressing silicon rubber and has three colors of yellow, green and red respectively, so that operation and maintenance staff can conveniently distinguish the phase line of the cable of the voltage transformer, and the overall operation and maintenance efficiency is improved. The phase line identification piece 4 is directly inserted into the arc-shaped through holes 12 arranged on the front side and the rear side of the protective cover main body 1 through the clamping blocks 41 arranged on the phase line identification piece and is in clamping connection, so that the phase line identification piece can be detachably connected to the protective cover main body.
In the present embodiment, the arc-shaped through holes 12 are symmetrically disposed on the top of the shield body 1 with respect to the second slit 11. Likewise, the phase conductor identification element 4 is arranged symmetrically with respect to the second slit 11. The two phase line identification pieces are buckled into the arc-shaped through holes 12 on the protective cover main body 1 before the protective cover is installed on PT equipment so as to achieve a stable state, and the two phase line identification pieces are combined with the protective cover to form the phase line identification of the tower, so that the phase line identification is met, and the breaking-off effect of the protective cylinder and the protective cover main body towards two sides is not influenced.
The protective cover main body 1 is formed by injection molding of transparent PC materials imported abroad.
As shown in fig. 1 and 2, the bottom of the shield body 1 is extended outward to form a skirt 13 inclined downward. After the protective cover main body 1 is buckled (or sleeved) into the PT equipment, the skirt 13 is stably contacted with the composite material part of the PT equipment, so that the friction force is enhanced, the protective cover main body is not easy to blow by wind, and the protective cover is protected from rain water to the composite material part of the PT equipment.
The protective cover of the voltage transformer provided by the invention adopts a wrapping type design, can resist 38KV high voltage and 750 ℃ high temperature, meets the requirement of electrified installation operation, and has a service life of up to 8 to 10 years. The voltage transformer is wrapped through the protective cover main body, and the cable on the voltage transformer is wrapped through the protective cylinder, so that complete isolation is achieved, and short circuits caused by climbing of mice are avoided. If an accident of fire occurs, the protective cover has certain burning phenomenon without fire, and secondary damage to circuits and other equipment is avoided.
In addition, as shown in fig. 1,3, 4 and 5, the invention also provides an insulation clamp, which comprises a clamping part 3 for clamping the protective cover of the voltage transformer capable of live working and a locking part 34 capable of being detachably connected with the existing insulation rod; the clamping part 3 is provided with two semicircular clamping grooves 31 which are suitable for the insertion of the protective cylinder 2; the clamping part 3 is provided with a through hole 33 which is positioned between the two clamping grooves 31 and is suitable for the passage of a voltage transformer cable; the clamping part 3 is provided with a cable opening (not marked in the figure) at the bottom side thereof, which is suitable for the cable of the voltage transformer to move to the through hole 33; the locking part 34 is arranged at the left side of the clamping part 3 and is fixed on the clamping part 3.
As shown in fig. 4 and 5, when the insulating jig is attached to the insulating rod, the insulating rod is passed through the opening 35 defined by the locking portion 34, the position of the insulating jig with respect to the insulating rod is adjusted, and then the insulating jig is fastened to the insulating rod by locking the insulating jig with an insulating screw through a locking hole provided at the end of the locking portion 34.
The insulating clamp provided by the invention adopts an integrated design, and the locking part 34 and the clamping part 3 are integrally formed. The insulating fixture is made of glass fiber materials through printing, disassembly is not needed, and the insulating fixture has the characteristics of high strength, high hardness and high withstand voltage.
As shown in fig. 1 and 3, the clamping portions 3 are provided with support bars 32 for clamping the protective cylinder 2 outside the clamping grooves 31. When the protective cylinder 2 is split into two parts along the first slit 21 and the third slit 22 and is respectively inserted into the clamping groove 31, the protective cylinder is clamped by the two support bars 32, so that the overall stability is enhanced, and shaking and sagging of the protective cylinder are avoided.
As shown in fig. 3 and 5, in the present embodiment, the clamping portion 3 is in a "C" shape, and is fixed to the fastening portion 34 by a connecting portion, and the clamping portion 3, the connecting portion, and the fastening portion 34 are integrally formed. Wherein, the clamping groove 31 and the supporting strips 32 are symmetrically arranged respectively, and the extension lines of the two supporting strips 32 form an included angle.
The protective cover of the voltage transformer is ingenious in structural design, the protective cylinder 2 is broken towards two sides along the first slit 21 when the protective cover is used, a large-angle opening is formed, then the protective cylinder is correspondingly inserted into the clamping groove 31 of the insulating clamp, and meanwhile the protective cylinder is clamped by the two support bars 32, so that the protective cover of the voltage transformer is completely clamped and cannot shake or sag.
The insulation clamp is fixedly connected to the existing insulation rod through the lock catch part 34, a worker wears insulation gloves, holds the insulation rod by hand after wearing insulation boots to send the protective cover of the voltage transformer to the tower, and passes through the cable on the PT equipment through the protective cover in the broken-off state, namely, when the protective cover moves from top to bottom, the cable enters the inner cavity of the protective cylinder from the outside, and simultaneously passes through the cable opening of the insulation clamp and enters the through hole 33 of the clamping part 3, so that the cable is wrapped by the protective cylinder when the protective cylinder is closed; and then the protective cover is lightly placed above the voltage transformer and sleeved into the voltage transformer downwards.
When the protective cover is completely attached to the voltage transformer, the insulating rod is slightly pulled outwards, the protective cover is separated from the insulating clamp, the protective cover is closed due to the fact that the protective cover is to be restored to the original state, the voltage transformer and the cable are wrapped, isolated live working of the protective cover is completed, line power-off and power-up operation are not needed to be carried out by utilizing a live operation vehicle, working time is greatly saved, and overall working efficiency is improved.
The voltage transformer protective cover and the insulating clamp can be matched with an insulating rod for use, and can be widely applied to a 10KV overhead line system.
In summary, the voltage transformer protective cover capable of carrying out live working is unique and novel in structure, simple and convenient to install, capable of carrying out operation anywhere and anytime, free of lifting platforms, capable of supplying power and capable of carrying out live operation on a large-sized vehicle, and capable of being installed on a voltage transformer in a live state.
In addition, the invention also provides an insulating clamp which is ingenious in design and is used for clamping the protective cover of the voltage transformer in cooperation with the installation work of the protective cover of the voltage transformer, and the protective cover of the voltage transformer is installed on the voltage transformer in an electrified state.
At present, the situations of unexpected faults of tower lines caused by small animals including mice are more and more, and power grid companies are stricter and cautious for power failure plans, however, through the voltage transformer protective cover and the insulating clamp capable of carrying out live working, which are provided by the invention, the situations can be effectively controlled, live working can be carried out, line power-off and power-up operation is not needed by utilizing a live operation vehicle, the working time is greatly saved, the protective cover can be directly arranged on the voltage transformer, standard insulating gloves and insulating boots can be worn during the operation, the secondary protection effect is achieved, the complete insulation is realized through multiple protection, the safety guarantee is provided for workers, meanwhile, the working time is greatly reduced, and the overall working efficiency is greatly improved.
It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present invention and their spirit, and all such modifications and substitutions are intended to be included within the scope of the present invention as defined in the following claims.
Claims (4)
1. The voltage transformer protective cover insulating clamp assembly capable of carrying out live working comprises a protective cover and an insulating clamp, and is characterized in that the protective cover comprises a protective cover main body and a protective cylinder which is used for wrapping a voltage transformer cable and is integrally formed with the protective cover main body; the protective cover main body is provided with a containing cavity which is downward in opening and can be sleeved with a voltage transformer; the protective cylinder is horizontally arranged on the left side of the protective cover main body; the top of the protective cylinder is provided with a first slit along the axial direction of the protective cylinder, and the top of the protective cover main body is correspondingly provided with a second slit coplanar with the first slit; the bottom of the protective cylinder is provided with a third slit with a slit opening gradually enlarged from left to right along the axial direction of the protective cylinder, and the left side of the protective cover main body is correspondingly provided with a fourth slit connected with the third slit; the top of the protective cover main body is detachably connected with a phase line identification piece; an arc through hole is formed in the top of the protective cover main body; the bottom of the phase line identification piece is provided with a clamping block which is clamped with the arc-shaped through hole; the phase line identification piece is semicircular in top view; the bottom of the protective cover main body extends outwards to form an inclined downward skirt; the insulation clamp comprises a clamping part for clamping the protective cover and a locking part which can be detachably connected with the insulation rod; the clamping part is provided with two semicircular clamping grooves which are suitable for the insertion of the protective cylinder; the clamping part is provided with a through hole which is positioned between the two clamping grooves and is suitable for the passage of a voltage transformer cable; the clamping part is provided with a cable opening at the bottom side thereof, which is suitable for the cable of the voltage transformer to move to the through hole; the lock catch part is arranged at the left side of the clamping part and is fixed on the clamping part; the clamping parts are respectively provided with supporting bars used for clamping the protective cylinder at the outer sides of the clamping grooves; the locking part and the clamping part are integrally formed.
2. The live-operable voltage transformer shield insulating clamp assembly of claim 1, wherein the shield body and shield canister are made of a transparent PC material.
3. The live-operable voltage transformer shield insulating clamp assembly of claim 1, wherein the phase wire identification member is extruded from silicone rubber.
4. The live-wire voltage transformer shield insulation jig assembly of claim 1, wherein the insulation jig is made of fiberglass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911131802.5A CN110911137B (en) | 2019-11-19 | 2019-11-19 | Voltage transformer protective cover capable of carrying out live working and insulating clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911131802.5A CN110911137B (en) | 2019-11-19 | 2019-11-19 | Voltage transformer protective cover capable of carrying out live working and insulating clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110911137A CN110911137A (en) | 2020-03-24 |
| CN110911137B true CN110911137B (en) | 2024-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911131802.5A Active CN110911137B (en) | 2019-11-19 | 2019-11-19 | Voltage transformer protective cover capable of carrying out live working and insulating clamp |
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| CN (1) | CN110911137B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113207868B (en) * | 2021-05-19 | 2022-08-30 | 广东电网有限责任公司 | Self-locking high-voltage side isolation device and use tool thereof |
| CN113270253B (en) * | 2021-05-19 | 2022-07-19 | 广东电网有限责任公司 | Buckle formula transformer protection casing and operation tool thereof |
| CN114501895A (en) * | 2022-02-17 | 2022-05-13 | 广东粤艺电力科技有限公司 | Protective cover |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207038318U (en) * | 2017-07-25 | 2018-02-23 | 山东百川电气科技有限公司 | A kind of voltage transformer silicon rubber protective cover |
| CN210956413U (en) * | 2019-11-19 | 2020-07-07 | 佛山市南旭科技有限公司 | Voltage transformer protective cover capable of live working and insulating clamp |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4759399B2 (en) * | 2006-01-30 | 2011-08-31 | 東海ゴム工業株式会社 | Stabilizer bush |
| JP2008092664A (en) * | 2006-10-02 | 2008-04-17 | Tokyo Electric Power Co Inc:The | Structure and method for preventing aluminum collar for electric wire holding spacer from being dislocated |
| US20190279535A1 (en) * | 2018-03-06 | 2019-09-12 | Stacey Eve Sartena | Decoration and Identification Device for Stemware |
| JP2019176581A (en) * | 2018-03-27 | 2019-10-10 | 中国電力株式会社 | Cover attachment jig |
| CN208655356U (en) * | 2018-09-14 | 2019-03-26 | 深圳市天为科技有限公司 | A kind of voltage transformer shield |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207038318U (en) * | 2017-07-25 | 2018-02-23 | 山东百川电气科技有限公司 | A kind of voltage transformer silicon rubber protective cover |
| CN210956413U (en) * | 2019-11-19 | 2020-07-07 | 佛山市南旭科技有限公司 | Voltage transformer protective cover capable of live working and insulating clamp |
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| CN110911137A (en) | 2020-03-24 |
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| Date | Code | Title | Description |
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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 | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20200324 Assignee: Foshan Huayi Technology Co.,Ltd. Assignor: Foshan Nanxu Technology Co.,Ltd. Contract record no.: X2022990000213 Denomination of invention: Voltage transformer protective cover and insulating clamp capable of live working License type: Common License Record date: 20220418 |
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Country or region after: China Address after: Unit 414, 4th Floor, B5 Building, Dengjun Digital City Phase II, No. 39 Xile Avenue East, Leping Town, Sanshui District, Foshan City, Guangdong Province 528100 Applicant after: Foshan Nanxu Technology Co.,Ltd. Address before: No. 11 Panlong East Road, Leping Town, Sanshui District, Foshan City, Guangdong Province, 528100 Applicant before: Foshan Nanxu Technology Co.,Ltd. Country or region before: China |
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