CN208335974U - A kind of dedicated straight-through current transformer of miniaturization air insulation switchgear - Google Patents
A kind of dedicated straight-through current transformer of miniaturization air insulation switchgear Download PDFInfo
- Publication number
- CN208335974U CN208335974U CN201820832246.9U CN201820832246U CN208335974U CN 208335974 U CN208335974 U CN 208335974U CN 201820832246 U CN201820832246 U CN 201820832246U CN 208335974 U CN208335974 U CN 208335974U
- Authority
- CN
- China
- Prior art keywords
- current transformer
- coil winding
- air insulation
- magnetic conductor
- primary
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 16
- 238000004804 winding Methods 0.000 claims abstract description 24
- 239000004020 conductor Substances 0.000 claims abstract description 23
- 230000005291 magnetic effect Effects 0.000 claims abstract description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 239000010949 copper Substances 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000003302 ferromagnetic material Substances 0.000 claims abstract description 4
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
The utility model discloses a kind of dedicated straight-through current transformers of miniaturization air insulation switchgear, including magnetic conductor, the primary side of magnetic conductor is wound with primary coil winding, the secondary side of magnetic conductor is wound with secondary coil winding, the magnetic conductor is made of ferromagnetic material, secondary coil winding is coiled into using copper enameled wire, primary coil winding is connected with primary circuit conductor, the utility model mutual inductor and miniaturized vacuum circuit breaker matching are combined into air insulation (non-SF6 and solid) miniaturization 10KV high-tension switch cabinet, compared with common middle 10KV power distribution cabinet, occupied area can save the area about 60%, ferrous metal can save 30%；Non-ferrous metal opens saving 20%.
Description
Technical field
The utility model relates to a kind of mutual inductor, specifically a kind of dedicated core-theaded type electric current of miniaturization air insulation switchgear
Mutual inductor.
Background technique
Mutual inductor is also known as instrument transformer, is the general designation of current transformer and voltage transformer.High voltage can be become
Low-voltage, high current become low current, for measuring or protecting system.Its function mainly by high voltage or high current in proportion
It is transformed into normal low voltage (100V) or standard small electric current (5A or 1A, refer both to rated value), to realize that measuring instrumentss, protection are set
Standby and automatic control equipment standardization, miniaturization.Simultaneously mutual inductor may further be used to separate high-voltage system, with guarantee the person and
The safety of equipment.
Existing straight-through current transformer mostly uses greatly plane bridging type structure, can not solve switchgear volume-diminished and ask
Topic, using flip-over type structure, certain difficulty is built into equipment letter.
Summary of the invention
The purpose of this utility model is to provide a kind of dedicated straight-through current transformer of miniaturization air insulation switchgear,
To solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions:
A kind of dedicated straight-through current transformer of miniaturization air insulation switchgear, including magnetic conductor, magnetic conductor it is primary
Side is wound with primary coil winding, and the secondary side of magnetic conductor is wound with secondary coil winding, and the magnetic conductor uses ferromagnetic material
It is made, secondary coil winding is coiled into using copper enameled wire, and primary coil winding is connected with primary circuit conductor.
Further technical solution as the utility model: it is equipped on the primary coil winding and secondary coil winding
The epoxy resin that vacuum pours.
Further technical solution as the utility model: current transformer is in electric loop, the upper end connection open circuit
Device, breaker connect incoming-line busbar, and the lower end of current transformer connects outlet cable.
Further technical solution as the utility model: the primary circuit conductor is made of copper bus-bar or copper rod.
Further technical solution as the utility model: current transformer be fixedly mounted on the breaker chamber of switchgear with
On the metal partion (metp) of cable vault, secondary terminals are in breaker chamber.
Compared with prior art, the utility model has the beneficial effects that the utility model mutual inductor and miniaturized vacuum are disconnected
Device matching in road is combined into air insulation (non-SF6 and solid) miniaturization 10KV high-tension switch cabinet, matches with common middle 10KV
Electric cabinet is compared, and occupied area can save the area about 60%, and ferrous metal can save 30%；Non-ferrous metal opens saving 20%.
Detailed description of the invention
Fig. 1 is the structure chart of current transformer.
Fig. 2 is annexation figure of the current transformer in electric loop.
In figure: 1- magnetic conductor, 2- primary coil winding, 3- secondary coil winding, 4- incoming-line busbar, 5- breaker, 6- go out
Line cable, 7- current transformer.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The dedicated straight-through current transformer of a kind of miniaturization air insulation switchgear referring to FIG. 1-2, including magnetic conductor 1,
The primary side of magnetic conductor 1 is wound with primary coil winding 2, and the secondary side of magnetic conductor 1 is wound with secondary coil winding 3, the magnetic
Conductor 1 is made of ferromagnetic material, and secondary coil winding 3 is coiled into using copper enameled wire, and the connection of primary coil winding 2 is once returned
Road conductor.
The epoxy resin that vacuum pours is equipped on primary coil winding 2 and secondary coil winding 3.Current transformer 7 exists
In electric loop, the upper end connects breaker 5, and breaker 5 and current transformer 7 are mounted in breaker of switch cabinet room, open circuit
Device connects incoming-line busbar 4, and incoming-line busbar 4 is arranged in switch cabinet bus room, and the lower end of current transformer connects outlet cable 6,
Outlet cable 6 is mounted on inside switchgear cable vault, and current transformer 7 is fixedly mounted on breaker chamber and the cable vault of switchgear
Metal partion (metp) on, secondary terminals are in breaker chamber.
The working principle of the utility model is: current transformer 7 is in enter line side (on circuit in electrical primary circuit
Side) it connects with drop-out current effect, vacuum circuit breaker is generally connected using copper bus-bar；And vacuum circuit breaker is to entire electricity
Road is protected, and the outgoing line side of current transformer 7 is then to be directly connected to the end of outlet cable 6 with short copper bus-bar.Electric current is mutual
The secondary coil circuit of sensor 7 can concatenate the current coil of ammeter, relay, electricity-measuring meter, microcomputer protecting device；Power supply
Road metering, measurement, protection are used, and current transformer is mounted on breaker chamber and the metal partion (metp) of cable vault, and partition is provided with electric current
The mounting hole of mutual inductor, using right angle setting, screw is fixed, current transformer have current transformer all performances (including
The secondary circuit coil of current transformer is forbidden opening a way in, disconnects).
The straight-through current transformer uses insulating resin at cylinder using insulation is reinforced, with around the copper bar of junction
Type insulation；The mutual inductor end of incoming cables is connect with miniaturized vacuum circuit breaker, and leading-out terminal is connect with cable and earthing switch；Installation side
Just.
This straight-through current transformer is fixedly mounted on breaker chamber and the metal partion (metp) of cable vault, and secondary connection end exists
Breaker chamber, secondary cabling are convenient.Because circuit breaker chamber door one is opened, so that it may see mutual inductor, it is easy to maintenance.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. a kind of dedicated straight-through current transformer of miniaturization air insulation switchgear, including magnetic conductor (1), magnetic conductor (1)
Primary side is wound with primary coil winding (2), and the secondary side of magnetic conductor (1) is wound with secondary coil winding (3), and feature exists
In the magnetic conductor (1) is made of ferromagnetic material, and secondary coil winding (3) is coiled into using copper enameled wire, primary coil winding
(2) it is connected with primary circuit conductor.
2. a kind of dedicated straight-through current transformer of miniaturization air insulation switchgear according to claim 1, feature
It is, is equipped with the epoxy resin that vacuum pours on the primary coil winding (2) and secondary coil winding (3).
3. a kind of dedicated straight-through current transformer of miniaturization air insulation switchgear according to claim 1, feature
It is, for current transformer (7) in electric loop, the upper end connects breaker (5), and breaker connects incoming-line busbar (4), electric current
The lower end of mutual inductor connects outlet cable (6).
4. a kind of dedicated straight-through current transformer of miniaturization air insulation switchgear according to claim 1, feature
It is, the primary circuit conductor is made of copper bus-bar or copper rod.
5. a kind of dedicated straight-through current transformer of miniaturization air insulation switchgear according to claim 1, feature
It is, current transformer (7) is fixedly mounted on the breaker chamber of switchgear and the metal partion (metp) of cable vault, secondary terminals
In breaker chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820832246.9U CN208335974U (en) | 2018-05-31 | 2018-05-31 | A kind of dedicated straight-through current transformer of miniaturization air insulation switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820832246.9U CN208335974U (en) | 2018-05-31 | 2018-05-31 | A kind of dedicated straight-through current transformer of miniaturization air insulation switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208335974U true CN208335974U (en) | 2019-01-04 |
Family
ID=64772134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820832246.9U Expired - Fee Related CN208335974U (en) | 2018-05-31 | 2018-05-31 | A kind of dedicated straight-through current transformer of miniaturization air insulation switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208335974U (en) |
-
2018
- 2018-05-31 CN CN201820832246.9U patent/CN208335974U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 |