CN208796830U - A kind of external current mutual inductor for Cubicle Gas-Insulated Switchgear - Google Patents
A kind of external current mutual inductor for Cubicle Gas-Insulated Switchgear Download PDFInfo
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- CN208796830U CN208796830U CN201821530266.7U CN201821530266U CN208796830U CN 208796830 U CN208796830 U CN 208796830U CN 201821530266 U CN201821530266 U CN 201821530266U CN 208796830 U CN208796830 U CN 208796830U
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- flange
- current transformer
- insulated switchgear
- shell
- insulation board
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Abstract
The utility model discloses a kind of external current mutual inductors for Cubicle Gas-Insulated Switchgear, belong to current transformer technical field.It includes shell, first flange, support tube and current transformer ontology, and current transformer ontology includes CT coil block, is fixedly linked into assembly by bindiny mechanism between first flange and support tube, and bindiny mechanism includes insulation board and second flange.Current transformer is replaced built-in installation by the utility model in Cubicle Gas-Insulated Switchgear by external installation; make current transformer not in the shell of the gas filled with protection; no longer directly it is associated with interior of shell assembly; pass through only Primary Conductor in gas chamber; it is built in Cubicle Gas-Insulated Switchgear to solve current transformer; caused is not easy to overhaul, safeguard, or even influences insulation performance and housing unit is numerous and the problem that causes discharge probability high.
Description
Technical field
The utility model relates to a kind of external current mutual inductors for Cubicle Gas-Insulated Switchgear, belong to
Current transformer technical field.
Background technique
Primary side high current is converted into secondary side low current to measure according to electromagnetic induction principle by current transformer
Instrument.It is made of the iron core and winding being closed.In gas-insulated metal enclosed switchgear, the primary side of current transformer around
Group the number of turns is seldom, an often only circle, goes here and there in the route for the electric current for needing to measure, by be whole electric currents, secondary side around
Group turn ratio is more, is serially connected in measuring instrumentss and protective loop.
Currently, as component important in Cubicle Gas-Insulated Switchgear, current transformer be all made of it is built-in,
Its CT coil block is installed in closed shell, with interior of shell assembly be associated with, be easy to cause maintenance, maintenance inconvenience and
Influence insulation performance, in closed shell full of certain pressure for the gas that insulate, shell inner assembly is more, discharge probability
It is higher.
Summary of the invention
Technical problem to be solved by the utility model is to provide one kind to be used for Cubicle Gas-Insulated Switchgear
External current mutual inductor, it solves current transformer and is built in Cubicle Gas-Insulated Switchgear, caused
Be not easy to overhaul, safeguard, or even influence insulation performance and housing unit is numerous and the problem that causes discharge probability high.
Technical problem to be solved in the utility model takes following technical scheme to realize:
A kind of external current mutual inductor for Cubicle Gas-Insulated Switchgear, including shell, first flange,
Support tube and current transformer ontology, the current transformer ontology include CT coil block, the first flange and support tube
Between assembly is fixedly linked by bindiny mechanism, the bindiny mechanism includes insulation board and second flange, the support tube
One end be connected in second flange, first flange and support tube are consolidated by way of clamping in the two sides of the bottom of the insulation board
It is scheduled on together, is fixedly linked between the insulation board and second flange by clamping screw, the assembly is located at shell and CT
Between coil block, fixing sleeve is connected to anchor ear on the outer wall of the CT coil block, forms gas between the anchor ear and assembly
Room, the specification of the gas chamber are greater than the specification of CT coil block.
As preferred embodiment, convex block is respectively fixedly connected on two lateral walls of the insulation board, the support tube is close
The side of insulation board and first flange offer the groove to match with convex block, each convex block close to the side of insulation board
It is connected in corresponding groove.
As preferred embodiment, the bottom of the shell is additionally provided with secondary terminal box.
As preferred embodiment, the material of the shell is aluminum alloy material.
The beneficial effects of the utility model are: the utility model structure is simple, the utility model is by current transformer in gas
Replace built-in installation in body insulated metal closed switch equipment by external installation, makes current transformer not filled with protection
It in the shell of gas, is no longer directly associated with interior of shell assembly, passes through only Primary Conductor in gas chamber, thus
It solves current transformer to be built in Cubicle Gas-Insulated Switchgear, it is caused to be not easy to overhaul, safeguard or even shadow
It rings insulation performance and housing unit is numerous and the problem that causes discharge probability high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the left view of the utility model；
Fig. 3 is the right view of the utility model；
Fig. 4 is the structural schematic diagram of part A in the utility model.
In figure: shell 1, first flange 2, support tube 3, CT coil block 4, insulation board 5, second flange 6, anchor ear 7, gas chamber
8, convex block 10, secondary terminal box 9.
Specific embodiment
In order to which the technical means, creative features, achievable purpose and effectiveness to the utility model are easy to understand, tie below
Conjunction is specifically illustrating, and the utility model is further described.
As shown in Figs 1-4, a kind of external current mutual inductor for Cubicle Gas-Insulated Switchgear, including it is outer
Shell 1, first flange 2, support tube 3 and current transformer ontology, current transformer ontology include CT coil block 4, first flange 2
Assembly is fixedly linked by bindiny mechanism between support tube 3, bindiny mechanism includes insulation board 5 and second flange 6, support
One end of cylinder 3 is connected in second flange 6, and the two sides of the bottom of insulation board 5 are by way of clamping by first flange 2 and support tube
3 are fixed together, and are fixedly linked between insulation board 5 and second flange 6 by clamping screw, and assembly is located at shell 1 and CT line
Between coil assembly 4, fixing sleeve is connected to anchor ear 7 on the outer wall of CT coil block 4, and gas chamber 8, gas are formed between anchor ear 7 and assembly
The specification of room 8 is greater than the specification of CT coil block 4.
Convex block 10 is respectively fixedly connected on two lateral walls of insulation board 5, support tube 3 is close to the side of insulation board 5 and
One flange 2 offers the groove to match with convex block 10 close to the side of insulation board 5, and each convex block 10 is connected to corresponding
In groove.
The bottom of shell 1 is additionally provided with secondary terminal box 9.
The material of shell 1 is aluminum alloy material.
Working principle: when in use, using the gas chamber 8 formed between anchor ear 7 and assembly, keep gas chamber 8 mutual as electric current
Sensor ontology is installed support tube 3 and is used, and the CT coil block 4 on current transformer ontology is coaxially assemblied on the outside of gas chamber 8, and first
Flange 2 uses assembly type, is made of parts such as insulation board 3, second flanges 6, facilitates CT coil block 4 in current transformer ontology
Installation, and prevent from being formed into a loop between shell 1 and support tube 3, the assembly of entire CT coil block 4 be fixed on outside shell 1
Assembly on, be no longer directly associated with 1 mounted inside of shell, thus can guarantee shell 1 in entirety after the assembly is completed
Property, while also can be convenient the maintenance, maintenance and guarantee insulation performance in later period, it is in addition carried out using aluminum alloy casing filthy anti-
Shield.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry it should be appreciated that the present utility model is not limited to the above embodiments, do not depart from the spirit of the present invention and
Under the premise of range, the utility model also has various changes and improvements, these changes and improvements both fall within claimed
Within the scope of utility model.The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (4)
1. a kind of external current mutual inductor for Cubicle Gas-Insulated Switchgear, including shell, first flange, branch
Support cylinder and current transformer ontology, it is characterised in that: the current transformer ontology includes CT coil block, the first flange
Assembly is fixedly linked by bindiny mechanism between support tube, the bindiny mechanism includes insulation board and second flange, institute
The one end for stating support tube is connected in second flange, the two sides of the bottom of the insulation board by way of clamping by first flange and
Support tube is fixed together, and is fixedly linked between the insulation board, second flange and first flange three by clamping screw, institute
Assembly is stated between shell and CT coil block, fixing sleeve is connected to anchor ear on the outer wall of the CT coil block, and described armful
Gas chamber is formed between hoop and assembly, the specification of the gas chamber is greater than the specification of CT coil block.
2. a kind of external current mutual inductor for Cubicle Gas-Insulated Switchgear according to claim 1,
It is characterized in that: being respectively fixedly connected with convex block on two lateral walls of the insulation board, the support tube is close to the side of insulation board
The groove to match with convex block is offered close to the side of insulation board with first flange, each convex block is connected to corresponding
Groove in.
3. a kind of external current mutual inductor for Cubicle Gas-Insulated Switchgear according to claim 1,
Be characterized in that: the bottom of the shell is additionally provided with secondary terminal box.
4. a kind of external current mutual inductor for Cubicle Gas-Insulated Switchgear according to claim 1,
Be characterized in that: the material of the shell is aluminum alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821530266.7U CN208796830U (en) | 2018-09-19 | 2018-09-19 | A kind of external current mutual inductor for Cubicle Gas-Insulated Switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821530266.7U CN208796830U (en) | 2018-09-19 | 2018-09-19 | A kind of external current mutual inductor for Cubicle Gas-Insulated Switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208796830U true CN208796830U (en) | 2019-04-26 |
Family
ID=66210164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821530266.7U Active CN208796830U (en) | 2018-09-19 | 2018-09-19 | A kind of external current mutual inductor for Cubicle Gas-Insulated Switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208796830U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871177A (en) * | 2021-08-25 | 2021-12-31 | 河南平高电气股份有限公司 | GIS and external current transformer |
-
2018
- 2018-09-19 CN CN201821530266.7U patent/CN208796830U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871177A (en) * | 2021-08-25 | 2021-12-31 | 河南平高电气股份有限公司 | GIS and external current transformer |
| CN113871177B (en) * | 2021-08-25 | 2024-04-09 | 河南平高电气股份有限公司 | GIS and external current transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210817 Address after: 226500 No.20 Huashi North Road, Chengbei street, Rugao City, Nantong City, Jiangsu Province Patentee after: Jiangsu Zhenggang Power Equipment Co.,Ltd. Address before: 201706 building 3-4, No. 6, Lane 6725, Beiqing highway, Chonggu Town, Qingpu District, Shanghai Patentee before: SHANGHAI ZHENGGANG ELECTRIC Co.,Ltd. |
|
| TR01 | Transfer of patent right |