CN203339484U - One-piece type three-phase sleeve tube equipped with phase current transformers and zero sequence current transformer - Google Patents
One-piece type three-phase sleeve tube equipped with phase current transformers and zero sequence current transformer Download PDFInfo
- Publication number
- CN203339484U CN203339484U CN2013202820472U CN201320282047U CN203339484U CN 203339484 U CN203339484 U CN 203339484U CN 2013202820472 U CN2013202820472 U CN 2013202820472U CN 201320282047 U CN201320282047 U CN 201320282047U CN 203339484 U CN203339484 U CN 203339484U
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- China
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- phase
- current mutual
- mutual inductor
- zero sequence
- sequence current
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- Expired - Lifetime
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Abstract
The utility model discloses a one-piece type three-phase sleeve tube equipped with phase current transformers and a zero sequence current transformer. The one-piece type three-phase sleeve tube comprises three phase copper rods (1), three phase current transformers (2) and a zero sequence current transformer (3). The one-piece type three-phase sleeve tube is characterized in that each copper rod (1) is surrounded by each of the three phase current transformers (2); the three phase current transformers (2) are surrounded by the zero sequence current transformer; the copper rods (1), the phase current transformers (2) and the zero sequence current transformer are bonded in an integrated manner through an insulation body (4) formed through solid casting operation; the copper rods (1), the phase current transformers (2) and the zero sequence current transformer are insulated from one another; all of the copper rods (1), the phase current transformers (2) and the zero sequence current transformer (3) are imbedded in the insulation body (4). The one-piece type three-phase sleeve tube equipped with the phase current transformers and the zero sequence current transformer are mainly applied to the gas insulation electric cable demarcation switch cabinet field.
Description
Technical field
The utility model relates to a kind of three-phase sleeve pipe, relates in particular to a kind of three-phase of the integral type with phase current mutual inductor and zero sequence current mutual inductor sleeve pipe.
Background technology
Fast Construction along with intelligent grid, miniaturization, Intelligent high-voltage switch equipment uses in a large number, the needs of building in order to meet intelligent grid, switchgear for intelligent grid need to be installed threephase current transformer, wherein also need to install greatly zero sequence current mutual inductor, these instrument transformers generally all be installed to around sleeve pipe or cable around, so just installing space has been proposed to larger demand, and the intellectuality of switchgear now and miniaturization have become the trend of switchgear development, therefore dwindle the three-phase sleeve pipe, threephase current transformer, the installing space of zero sequence current mutual inductor becomes the starting point that switch industry solves this problem.At present the settling mode of main flow is the Integral three-phase current transformer adopted with zero-sequence transformer, or adopts straight-through current transformer to add zero sequence current mutual inductor and split type three-phase sleeve pipe partial installation; The inadequate like this requirement that meets installing space; Need first to install respectively the three-phase sleeve pipe but install, and then installation Integral three-phase current transformer, installation steps are more loaded down with trivial details, not only to consider fixedly three-phase sleeve pipe, also will design the support of fixed current instrument transformer, installation difficulty is larger, installs careless slightly, sleeve pipe will be subject to the Action of Gravity Field of current transformer, and affect the reliability and stability of switchgear.
The utility model content
The purpose of this utility model is to provide a kind of three-phase of the integral type with phase current mutual inductor and zero sequence current mutual inductor sleeve pipe, and this sleeve pipe can solve the problem that miniaturized intelligent type switchgear is installed the current transformer insufficient space.
The purpose of this utility model is achieved through the following technical solutions: a kind of three-phase of the integral type with phase current mutual inductor and zero sequence current mutual inductor sleeve pipe, comprise the three-phase copper rod, three phase current mutual inductors, a zero sequence current mutual inductor, described three phase current mutual inductors are separately around a copper rod, described zero sequence current mutual inductor is centered around the outside of three phase current mutual inductors, described copper rod, the insulator that phase current mutual inductor and zero sequence current mutual inductor are poured into a mould by solid is bonding to be connected and mutually insulated each other, described copper rod, zero sequence current mutual inductor and phase current mutual inductor all are embedded in described insulator.
Insulator described in the utility model is the cast of the monomer containing glass 10% nylon (PA6GF10).
Establish on described insulator and somely each and every one fixing hole is installed, these install fixing holes can be fixed on switch cubicle integral type three-phase sleeve pipe easily, and guarantees that integral type three-phase sleeve stress is even.
Copper rod described in the utility model is cylindrical shape for the insulator of that end parcel of inside switch cabinet connection, the gap of playing alternate mutually insulated effect is arranged between its inwall and copper rod, and its insulator wrapped up for that end be connected with cable is up big and down small cylindrical shell, its inwall and copper rod gapless, establish an annular groove on the side be connected with switch cubicle of the insulator of described zero sequence current mutual inductor, for holding sealing device.So that coordinated installation with inflating switch cabinet.
Three-phase copper rod described in the utility model is arranged side by side and the front and back alignment at grade, makes structure, size more compact.
The utlity model has following advantage:
The utility model is fused to three-phase copper rod, threephase current transformer and zero sequence current mutual inductor in sleeve pipe, be integrally formed formula three-phase sleeve pipe, special and the GI cable demarcation switch cabinet adaptation of overall dimension, saved as the independent mounting bracket of current transformer, structure and compact dimensions, take up room littlely, allow easy for installation.
The accompanying drawing explanation
Fig. 1 is the cutaway view of front view of the present utility model.
Fig. 2 is vertical view of the present utility model.
Fig. 3 is rearview of the present utility model.
Embodiment
As shown in Fig. 1 ~ 3, it is the three-phase of the integral type with phase current mutual inductor and zero sequence current mutual inductor sleeve pipe of the present utility model, it comprises three-phase copper rod 1, three phase current mutual inductors 2 and zero sequence current mutual inductors 3, three-phase copper rod 1 is arranged side by side and the front and back alignment at grade, three phase current mutual inductors 2 are separately around a copper rod 1,3 outsides that are centered around three phase current mutual inductors 2 of zero sequence current mutual inductor.The insulator 4 that copper rod 1, phase current mutual inductor 2 and zero sequence current mutual inductor 3 are poured into a mould by solid is bonding to be connected and mutually insulated each other, and copper rod 1, zero sequence current mutual inductor 3 and phase current mutual inductor 2 all are embedded in described insulator 4.Copper rod 1 is cylinder for the insulator 4 of that end parcel of inside switch cabinet connection, and 1 of its inwall and copper rod have the gap of playing alternate mutually insulated effect.The insulator 4 that copper rod 1 wraps up for that end be connected with cable is up big and down small cylindrical shell, and its inwall and copper rod 1 gapless, play the effect of phase insulation.Establish an annular groove on the side be connected with switch cubicle of the insulator of zero sequence current mutual inductor 3, for holding sealing device, so that coordinated installation with inflating switch cabinet.
Insulator 4 is the cast of the monomer containing glass 10% nylon (PA6GF10).Establish several on insulator 4 fixing hole is installed, these install fixing hole 5 can be fixed on switch cubicle integral type three-phase sleeve pipe easily, and guarantees that integral type three-phase sleeve stress is even.
During preparation, three-phase copper rod 1, three phase current mutual inductors 2, a zero sequence current mutual inductor 3 adopt stentplacements to locate in mould, then mould is installed on to injection molding machine, adopt nylon injection-molding technique to pour into a mould in the mold cavity of nylon (PA6GF10) injection containing the monomer of glass 10%, in mould, after cooling forming, be.
Claims (5)
1. the three-phase of the integral type with a phase current mutual inductor and zero sequence current mutual inductor sleeve pipe, comprise three-phase copper rod (1), three phase current mutual inductors (2), a zero sequence current mutual inductor (3), it is characterized in that, described three phase current mutual inductors (2) are separately around a described copper rod (1), described zero sequence current mutual inductor is centered around the outside of three phase current mutual inductors (2), described copper rod (1), the insulator (4) that phase current mutual inductor (2) and zero sequence current mutual inductor are poured into a mould by solid is bonding to be connected and mutually insulated each other, described copper rod (1), phase current mutual inductor (2) and zero sequence current mutual inductor (3) all are embedded in described insulator (4).
2. the three-phase of the integral type with phase current mutual inductor and zero sequence current mutual inductor sleeve pipe according to claim 1 is characterized in that: described casting insulated body (4) is the cast of the monomer containing glass 10% nylon.
3. the three-phase of the integral type with phase current mutual inductor and zero sequence current mutual inductor sleeve pipe according to claim 1 is characterized in that: described casting insulated body (4) is provided with several fixing hole is installed.
4. the three-phase of the integral type with phase current mutual inductor and zero sequence current mutual inductor sleeve pipe according to claim 1, it is characterized in that: described copper rod is cylinder for the insulator of that end parcel of inside switch cabinet connection, the gap of playing alternate mutually insulated effect is arranged between its inwall and copper rod, the insulator wrapped up for that end be connected with cable is up big and down small cylindrical shell, its inwall and copper rod gapless, establish an annular groove on the side be connected with switch cubicle of the insulator of described zero sequence current mutual inductor, for holding sealing device.
5. the three-phase of the integral type with phase current mutual inductor and zero sequence current mutual inductor sleeve pipe according to claim 1 is characterized in that: described three-phase copper rod (1) is arranged side by side and the front and back alignment at grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202820472U CN203339484U (en) | 2013-05-22 | 2013-05-22 | One-piece type three-phase sleeve tube equipped with phase current transformers and zero sequence current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202820472U CN203339484U (en) | 2013-05-22 | 2013-05-22 | One-piece type three-phase sleeve tube equipped with phase current transformers and zero sequence current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203339484U true CN203339484U (en) | 2013-12-11 |
Family
ID=49708142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202820472U Expired - Lifetime CN203339484U (en) | 2013-05-22 | 2013-05-22 | One-piece type three-phase sleeve tube equipped with phase current transformers and zero sequence current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203339484U (en) |
-
2013
- 2013-05-22 CN CN2013202820472U patent/CN203339484U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |