CN208256458U - A kind of open-close type zero sequence current mutual inductor - Google Patents
A kind of open-close type zero sequence current mutual inductor Download PDFInfo
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- CN208256458U CN208256458U CN201820852446.0U CN201820852446U CN208256458U CN 208256458 U CN208256458 U CN 208256458U CN 201820852446 U CN201820852446 U CN 201820852446U CN 208256458 U CN208256458 U CN 208256458U
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Abstract
The utility model relates to transformer technical field, a kind of particularly open-close type zero sequence current mutual inductor.The utility model discloses a kind of open-close type zero sequence current mutual inductors, including semiorbicular first shell and second shell and semiorbicular first iron core and the second iron core, first iron core and the second iron core pass through resin-cast in first shell and second shell respectively, the both ends of the first shell and second shell, which are detachably docked, to be formed a toroidal shell and is fixed by hose clamp, it docks to form an annular core in the both ends of first iron core and the second iron core, first iron core or the second iron core are arranged with winding coil, the toroidal shell is equipped with connecting terminal, the winding coil is connect with connecting terminal, the inner peripheral surface of the toroidal shell is circumferentially arranged with 4 cable Fasteners.The utility model structure is simple and stability is good, easily fabricated, and manufacture mold is less, at low cost, installation and easy maintenance, good fixing effect.
Description
Technical field
The utility model belongs to transformer technical field, more particularly to a kind of open-close type zero sequence current mutual inductor.
Background technique
Primary side high current is converted into secondary side low current to measure according to electromagnetic induction principle by current transformer
Instrument, current transformer are made of the iron core and winding being closed.
Zero sequence current mutual inductor is current transformer with single-turn cored structure.When in use, zero sequence current mutual inductor is covered in quilt
It surveys on cable, while connecting terminal is connected on low voltage control device or detector, when shakiness occurs in the electric current in tested cable
When determining or differing larger with rated value, it will be detected by low voltage control device or detector, indicate associated with tested cable
Equipment breaks down.
Previous zero sequence current mutual inductor be monoblock type mutual inductor, install and safeguard it is very inconvenient, to solve this problem,
There is open-close type zero sequence current mutual inductor now, well solved the installation of monoblock type mutual inductor and safeguards inconvenient ask
Topic, but existing open-close type zero sequence current mutual inductor, there is structure is complicated, intensity is inadequate, and manufacture mold is more, at high cost etc.
Problem.
Summary of the invention
The purpose of this utility model is to provide a kind of open-close type zero sequence current mutual inductors to solve above-mentioned ask
Topic.
To achieve the above object, the technical solution adopted in the utility model are as follows: a kind of open-close type zero sequence current mutual inductor, packet
Include semiorbicular first shell and second shell and semiorbicular first iron core and the second iron core, the first shell and second
The structure of shell is identical, and first iron core and the second iron core pass through resin-cast in first shell and second shell respectively,
The both ends of the first shell and second shell, which are detachably docked, to be formed a toroidal shell and is fixed by hose clamp, first iron
The both ends of core and the second iron core dock to form an annular core, and first iron core or the second iron core are arranged with winding coil, institute
Toroidal shell is stated equipped with connecting terminal, the winding coil is connect with connecting terminal, and the inner peripheral surface of the toroidal shell is along week
To equipped with 4 cable Fasteners.
Further, the hose clamp is American hose clamp.
Further, the outer peripheral surface of the toroidal shell is equipped with annular groove, and the hose clamp band of the hose clamp is arranged in ring
In connected in star.
Further, also spacing is equipped with several baffles on the notch of the annular groove, is detached from for limiting hose clamp band
Annular groove.
Further, 4 cable Fasteners are made of butadiene rubber, and the inner peripheral surface of the toroidal shell is circumferentially equal
Even to be equipped with 4 slots, detachable interposing is located in 4 slots 4 cable Fasteners respectively.
Further, ground line is additionally provided on the toroidal shell, the ground line includes the naked terminal of cast, tin plating establishment
Copper strips and O-shaped terminal, the naked terminal of cast are arranged on toroidal shell, and the O-shaped terminal passes through tin plating establishment copper strips and pipe
The naked terminal electrical connection of type.
Further, the first shell and second shell are made of ABS engineering plastics.
Further, the resin is epoxy resin.
Further, an end face of the toroidal shell is equipped with mounting plate, and the mounting plate is equipped with mounting hole.
Further, the quantity of the mounting plate is two, is separately positioned on opposite the two of an end face of toroidal shell
Side, mounting plate are screwed on the end face for being mounted on toroidal shell.
The advantageous effects of the utility model:
The utility model structure is simple and stability is good, easily fabricated, and manufacture mold is less, at low cost, installation and maintenance
Simplicity, good fixing effect.
Detailed description of the invention
Fig. 1 is the structure chart of the utility model specific embodiment；
Fig. 2 is the structure chart at another visual angle of the utility model specific embodiment；
Fig. 3 is the cross-sectional view of the utility model specific embodiment.
Specific embodiment
Now in conjunction with the drawings and specific embodiments, the present invention will be further described.
As shown in Figure 1-3, a kind of open-close type zero sequence current mutual inductor, including semiorbicular first shell 11 and second shell
12 and semiorbicular first iron core 21 and the second iron core (not shown), the knot of the first shell 11 and second shell 12
Structure is identical, and such first shell 11 and second shell 12 can reduce number of molds using same secondary mold manufacture, at low cost.
In this specific embodiment, first shell 11 and second shell 12 are preferably all semi-annular structure, but not limited to this.
First shell 11 and second shell 12 are preferably made of ABS engineering plastics, good insulating and beauty.
First iron core 21 and the second iron core pass through resin 8 respectively and are cast in first shell 11 and second shell 12,
In this specific embodiment, the first iron core 21 and the second iron core are semi-annular structure, and resin 8 is preferably epoxy resin.
The both ends of the first shell 11 and second shell 12, which are detachably docked, forms a circular ring shape shell and by hose clamp 3
Banding is fixed, at this point, the annular iron core for forming a closure is also docked at the both ends of first iron core 21 and the second iron core, namely
The both ends of the surface of first shell 11 and second shell 12 are opening setting.It is fixed using hose clamp 3, it is fixed relative to buckle, intensity
It is bigger, and the structure of first shell 11 and second shell 12 can be set to it is identical.
During this specific embodiment converges, the hose clamp 3 is American hose clamp, and the outer peripheral surface of the toroidal shell is equipped with annular groove
14, the hose clamp band 31 of the hose clamp 3 is arranged in annular groove 14, and hose clamp band 31 is avoided to shift, and fixed effect is more preferable.
Further, also spacing is equipped with several baffles 141 on the notch of the annular groove 14, for limiting hose clamp band 31
It is detached from annular groove 14, so that installation is easier, intensity is bigger.
First iron core 21 is arranged with winding coil (not shown), toroidal shell (the specially first shell
11) it is equipped with connecting terminal, the winding coil is connect with connecting terminal, certainly, in other embodiments, is also possible to second
Iron core is equipped with winding coil, correspondingly, connecting terminal is arranged in second shell 12.In this specific embodiment, connecting terminal is set
It sets on connecting terminal box 7, connecting terminal box 7 is fixed on first shell 11 by screw locking.
The inner peripheral surface of the toroidal shell is circumferentially arranged with 4 cable Fasteners 6, in this specific embodiment, 4 electricity
Cable Fastener 6 is made of butadiene rubber, and the cross section of cable Fastener 6 is " Ω " type, and the inner peripheral surface of the toroidal shell is along week
To 4 slots, 13,4 cable Fasteners 6 are uniformly provided with, detachable interposing is located in 4 slots 13 respectively, 4 cable Fasteners 6
Tested cable can preferably be clamped.
In this specific embodiment, be additionally provided with ground line on the toroidal shell, the ground line include the naked terminal 41 of cast,
Tin plating establishment copper strips 42 and O-shaped terminal 43, the naked terminal 41 of cast are arranged on toroidal shell, and the O-shaped terminal 43 passes through
Tin plating establishment copper strips 42 is electrically connected with the naked terminal 41 of cast.
In this specific embodiment, an end face of the toroidal shell is equipped with mounting plate 5, and the mounting plate 5 is equipped with peace
Hole 51 is filled, for this open-close type zero sequence current mutual inductor to be fixed on metope or stationary plane.
In this specific embodiment, the quantity of the mounting plate 5 is two, is separately positioned on the phase of an end face of toroidal shell
To two sides, mounting plate 5 is fixedly mounted on an end face of toroidal shell by screw 52.
Hose clamp 3 is first opened when installation, first shell 11 and second shell 12 separate, then by first shell 11 and second shell
The engagement of body 12 is placed on tested cable, then locking throat hoop 3, and cable Fastener 6 clamps tested cable, open-close type zero sequence electricity at this time
Current transformer is fixed on tested cable, this open-close type zero sequence current mutual inductor is fixed on metope by mounting plate 5 or is consolidated
Determine on face, current detecting then can be realized with the connecting terminal of detector terminals connection connecting terminal box 7.
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered
This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details
On the utility model can be made a variety of changes, be the protection scope of the utility model.
Claims (10)
1. a kind of open-close type zero sequence current mutual inductor, including semiorbicular first shell and second shell and semiorbicular first
Iron core and the second iron core, it is characterised in that: the first shell is identical with the structure of second shell, first iron core and second
Iron core passes through resin-cast in first shell and second shell respectively, and the both ends of the first shell and second shell are detachable
Docking forms a toroidal shell and is fixed by hose clamp, and the both ends of first iron core and the second iron core dock to form an annular iron
Core, first iron core or the second iron core are arranged with winding coil, and the toroidal shell is equipped with connecting terminal, the winding wire
Circle is connect with connecting terminal, and the inner peripheral surface of the toroidal shell is circumferentially arranged with 4 cable Fasteners.
2. open-close type zero sequence current mutual inductor according to claim 1, it is characterised in that: the hose clamp is American hose clamp.
3. open-close type zero sequence current mutual inductor according to claim 2, it is characterised in that: the outer peripheral surface of the toroidal shell
Equipped with annular groove, the hose clamp band of the hose clamp is arranged in annular groove.
4. open-close type zero sequence current mutual inductor according to claim 3, it is characterised in that: on the notch of the annular groove
Also spacing is equipped with several baffles, is detached from annular groove for limiting hose clamp band.
5. open-close type zero sequence current mutual inductor according to claim 1, it is characterised in that: 4 cable Fasteners by
Butadiene rubber is made, and the inner peripheral surface of the toroidal shell is circumferentially uniformly provided with 4 slots, and 4 cable Fastener difference are removable
It unloads and is plugged in 4 slots.
6. open-close type zero sequence current mutual inductor according to claim 1, it is characterised in that: be additionally provided on the toroidal shell
Ground line, the ground line include the naked terminal of cast, tin plating establishment copper strips and O-shaped terminal, and the naked terminal of cast is arranged in ring
On shape shell, the O-shaped terminal is electrically connected by tin plating establishment copper strips with the naked terminal of cast.
7. open-close type zero sequence current mutual inductor according to claim 1, it is characterised in that: the first shell and second shell
Body is made of ABS engineering plastics.
8. open-close type zero sequence current mutual inductor according to claim 1, it is characterised in that: the resin is epoxy resin.
9. open-close type zero sequence current mutual inductor according to claim 1, it is characterised in that: an end face of the toroidal shell
It is equipped with mounting plate, the mounting plate is equipped with mounting hole.
10. open-close type zero sequence current mutual inductor according to claim 9, it is characterised in that: the quantity of the mounting plate is
Two, it is separately positioned on the opposite sides of an end face of toroidal shell, mounting plate, which is screwed, is mounted on toroidal shell
On one end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820852446.0U CN208256458U (en) | 2018-06-04 | 2018-06-04 | A kind of open-close type zero sequence current mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820852446.0U CN208256458U (en) | 2018-06-04 | 2018-06-04 | A kind of open-close type zero sequence current mutual inductor |
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| Publication Number | Publication Date |
|---|---|
| CN208256458U true CN208256458U (en) | 2018-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820852446.0U Active CN208256458U (en) | 2018-06-04 | 2018-06-04 | A kind of open-close type zero sequence current mutual inductor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501547A (en) * | 2019-08-22 | 2019-11-26 | 广州京海科技有限公司 | A kind of Hall current sensor with heat dissipation and fixed function |
| CN112505587A (en) * | 2021-02-08 | 2021-03-16 | 山东广域科技有限责任公司 | Power failure detection device of transformer substation |
-
2018
- 2018-06-04 CN CN201820852446.0U patent/CN208256458U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501547A (en) * | 2019-08-22 | 2019-11-26 | 广州京海科技有限公司 | A kind of Hall current sensor with heat dissipation and fixed function |
| CN112505587A (en) * | 2021-02-08 | 2021-03-16 | 山东广域科技有限责任公司 | Power failure detection device of transformer substation |
| CN112505587B (en) * | 2021-02-08 | 2021-04-20 | 山东广域科技有限责任公司 | Power failure detection device of transformer substation |
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