CN104124047A - Current transformer and current transformer base - Google Patents
Current transformer and current transformer base Download PDFInfo
- Publication number
- CN104124047A CN104124047A CN201310147384.5A CN201310147384A CN104124047A CN 104124047 A CN104124047 A CN 104124047A CN 201310147384 A CN201310147384 A CN 201310147384A CN 104124047 A CN104124047 A CN 104124047A
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- connecting cylinder
- patchboard
- base
- current transformer
- flanges
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Abstract
The invention relates to a current transformer and a current transformer base. The current transformer base comprises a connecting barrel with the axis extending in the vertical direction, an upper end flange used for being connected with a current transformer body is arranged at the upper end of the connecting barrel, a patch board is mounted at the lower end of the connecting barrel, an annular molecular sieve is arranged in a barrel cavity of the connecting barrel, and inner holes of the molecular sieve form wire passing holes used for allowing wires correspondingly connecting the current transformer body with the patch board to pass through. The current transformer base is low in manufacturing cost.
Description
Technical field
The present invention relates to the high-tension transformation equipment of electric power system, relate in particular to a kind of current transformer and base of mutual inductor thereof.
Background technology
Existing current transformer structure is as shown in Figure 1-2: comprise instrument transformer body 1 and be arranged at the base of mutual inductor 2 of instrument transformer body bottom; base comprises three-way pipe 4; three-way pipe comprises the middle mouth of pipe and two the side pipe mouths that are coaxially set that are connected with instrument transformer body; the end of one of them side pipe mouth is provided with molecular sieve 6 by flange end cap; another side pipe mouth end is provided with patchboard 5, and the periphery of three-way pipe is covered with protective cover 3.The problem that existing this base of mutual inductor exists is: three-way pipe is that an aluminium alloy waters foundry goods, and its cost of manufacture is higher; Due to molecular sieve, be arranged at a side of three-way pipe simultaneously, cause molecular sieve can not play good desiccation; Simultaneously, in order to play water-proof function, must outside three-way pipe, establish protective cover by shroud, because molecular sieve and patchboard are divided into the two ends of three-way pipe, therefore protective cover must cover two side pipes of three-way pipe completely just and can play waterproof action, the volume that this will increase protective cover, is unfavorable for making, transportation and the installation of protective cover; Protective cover plays a part to bear instrument transformer body own wt in addition in addition; this just requires protective cover to have enough structural strengths; further increased the physical dimension of protective cover; instrument transformer body when mounted; also can be because the physical dimension of protective cover be compared with making the center of gravity of instrument transformer body higher greatly, the stability of instrument transformer body is bad, when having wind; easily blown down, may be occurred security incident.
Summary of the invention
The object of the present invention is to provide the base of mutual inductor that a kind of cost of manufacture is lower; The present invention also aims to provide a kind of current transformer that uses this base of mutual inductor.
In order to address the above problem, in the present invention, the technical scheme of base of mutual inductor is:
The base of mutual inductor of current transformer, comprise the connecting cylinder that axis extends along the vertical direction, the upper end of connecting cylinder is provided with the upper flanges for being connected with instrument transformer body, the lower end of connecting cylinder is provided with patchboard, the cylinder of connecting cylinder is provided with the molecular sieve of ring-type in chamber, and the endoporus of molecular sieve is configured for the cable-through hole that the wire of corresponding connection instrument transformer body and patchboard passes.
Described patchboard is installed on connecting cylinder by lower end flanges, and described lower end flanges is fixedly arranged on the lower end of described connecting cylinder.
Described patchboard is installed on the lower surface of described lower end flanges; Described molecular sieve is installed on the upper surface of described lower end flanges.
In described lower end flanges, be also provided with for stoping the protective cover of rainwater contact patchboard.
Described base of mutual inductor also comprises and is fixedly arranged on described upper flanges lower end and for supporting the support of described this body weight of instrument transformer, support comprises the load-bearing channel-section steel that two notches are oppositely arranged and the high direction of waist is extended along the vertical direction, described connecting cylinder is arranged between two load-bearing channel-section steels, and load-bearing channel-section steel is fixed in upper flanges by the bolt penetration hole of offering on side leg on it.
In the present invention, the technical scheme of current transformer is:
Current transformer, comprise instrument transformer body and be arranged at the base of mutual inductor of instrument transformer body bottom, base of mutual inductor comprises the connecting cylinder that axis extends along the vertical direction, the upper end of connecting cylinder is provided with the upper flanges being connected with instrument transformer body, the lower end of connecting cylinder is provided with patchboard, in the tube chamber of connecting cylinder, be provided with the molecular sieve of ring-type, the endoporus of molecular sieve is configured for the cable-through hole that the wire of corresponding connection instrument transformer body and patchboard passes.
Described patchboard is installed on connecting cylinder by lower end flanges, and described lower end flanges is fixedly arranged on the lower end of described connecting cylinder.
Described patchboard is installed on the lower surface of described lower end flanges; Described molecular sieve is installed on the upper surface of described lower end flanges.
In described lower end flanges, be also provided with for stoping the protective cover of rainwater contact patchboard.
Described base of mutual inductor also comprises and is fixedly arranged on described upper flanges lower end and for supporting the support of described this body weight of instrument transformer, support comprises the load-bearing channel-section steel that two notches are oppositely arranged and the high direction of waist is extended along the vertical direction, described connecting cylinder is arranged between two load-bearing channel-section steels, and load-bearing channel-section steel is fixed in upper flanges by the bolt penetration hole of offering on side leg on it.
Beneficial effect of the present invention is: during use, the upper end of connecting cylinder is connected in the bottom of instrument transformer body by upper flanges, and patchboard is arranged at the lower end of connecting cylinder, and molecular sieve is arranged in the cylinder chamber of connecting cylinder.Because connecting cylinder is one two logical structure, make simple, with low cost; Simultaneously molecular sieve also adopts circular ring, and the endoporus for the wire that connects instrument transformer body and patchboard by molecular sieve passes, and when the gas that should have mutually humidity flows to instrument transformer body by cable-through hole, molecular sieve also can play good desiccation to gas.
Further, because molecular sieve is arranged at the inside of connecting cylinder, when protective cover is set, protective cover only need cover patchboard, has reduced the volume required and weight of protective cover.
Further; the weight of instrument transformer body is born by support; protective cover does not need to bear the weight of instrument transformer body; protective cover is without the need for the higher strength of materials and structural strength; can reduce the cost of protective cover and further protective cover is done very little, further facilitate making, transportation and the installation of protective cover.
Accompanying drawing explanation
Fig. 1 is the structural representation of current transformer in background technology of the present invention;
Fig. 2 is the structural representation of three-way pipe part in background technology of the present invention;
Fig. 3 is the structural representation of an embodiment of current transformer in the present invention;
Fig. 4 is the structural representation of base of mutual inductor in Fig. 3, is also the structural representation of an embodiment of base of mutual inductor in the present invention simultaneously;
Fig. 5 is that the A-A of Fig. 4 is to cutaway view.
Embodiment
The embodiment of current transformer is as shown in Fig. 3 ~ 5: comprise instrument transformer body 7 and be arranged at the base of mutual inductor 8 of instrument transformer body bottom.Base of mutual inductor comprises the connecting cylinder 9 that axis extends along the vertical direction, the upper end of connecting cylinder is wholely set and is useful on the upper flanges 9-1 being connected with instrument transformer body, the lower end of connecting cylinder is provided with lower end flanges 14 by connecting bolt, and patchboard 12 is installed on the lower surface of lower end flanges; The molecular sieve 13 of ring-type is installed on the upper surface of lower end flanges, and molecular sieve is placed in the cylinder chamber of connecting cylinder, and the endoporus 13-1 of molecular sieve is configured for connecting the cable-through hole that the wire of instrument transformer body and terminal pad passes.In lower end flanges, be also provided with for stoping the protective cover 11 of rainwater contact patchboard.Base of mutual inductor also comprises for supporting the support of this body weight of instrument transformer, support comprises the load-bearing channel-section steel 10 that two notches are oppositely arranged and the high direction of waist is extended along the vertical direction, connecting cylinder is arranged between two load-bearing channel-section steels, offers for corresponding connecting bolt through the bolt penetration hole being connected with upper flanges to realize load-bearing channel-section steel on the upper side leg of load-bearing channel-section steel.
During use, support is born the weight of instrument transformer body completely, molecular sieve is arranged at the inside of connecting cylinder, do not need to carry out waterproofing protection, protective cover only plays a part to stop rainwater contact patchboard, that therefore protective cover can be done is very little, and the height of protective cover is also lower, is not only conducive to making, transportation and the installation of protective cover; The height that simultaneously also can reduce instrument transformer body after installation, even when having larger wind, instrument transformer body can not be blown to yet; Two of connecting cylinder leads to structures, has reduced the cost of manufacture of connecting cylinder; The circulus of molecular sieve can more be conducive to being dried gas.
In other embodiment of this current transformer: lower end flanges can not established yet, now patchboard is directly installed on the lower end of connecting cylinder, and molecular sieve can be arranged on the barrel of connecting cylinder, and protective cover also can directly be installed on connecting cylinder; Only need to consider connecting cylinder cost of manufacture, and while not needing to consider the volume of protective cover, support also can not established, and can directly protective cover be fixedly arranged on to the bottom of instrument transformer body, is born the weight of instrument transformer body by protective cover; Support can also be also the frame structure of other shape.
The embodiment of base of mutual inductor is as shown in Fig. 4 ~ 5: the concrete structure of base of mutual inductor is identical with the structure of base of mutual inductor described in above-mentioned each current transformer embodiment, is not described in detail in this.
Claims (10)
1. the base of mutual inductor of current transformer, it is characterized in that: comprise the connecting cylinder that axis extends along the vertical direction, the upper end of connecting cylinder is provided with the upper flanges for being connected with instrument transformer body, the lower end of connecting cylinder is provided with patchboard, the cylinder of connecting cylinder is provided with the molecular sieve of ring-type in chamber, and the endoporus of molecular sieve is configured for the cable-through hole that the wire of corresponding connection instrument transformer body and patchboard passes.
2. base of mutual inductor according to claim 1, is characterized in that: described patchboard is installed on connecting cylinder by lower end flanges, and described lower end flanges is fixedly arranged on the lower end of described connecting cylinder.
3. base of mutual inductor according to claim 2, is characterized in that: described patchboard is installed on the lower surface of described lower end flanges; Described molecular sieve is installed on the upper surface of described lower end flanges.
4. base of mutual inductor according to claim 2, is characterized in that: in described lower end flanges, be also provided with for stoping the protective cover of rainwater contact patchboard.
5. according to the base of mutual inductor described in claim 1 ~ 4 any one, it is characterized in that: described base of mutual inductor also comprises and is fixedly arranged on described upper flanges lower end and for supporting the support of described this body weight of instrument transformer, support comprises the load-bearing channel-section steel that two notches are oppositely arranged and the high direction of waist is extended along the vertical direction, described connecting cylinder is arranged between two load-bearing channel-section steels, and load-bearing channel-section steel is fixed in upper flanges by the bolt penetration hole of offering on side leg on it.
6. current transformer, comprise instrument transformer body and be arranged at the base of mutual inductor of instrument transformer body bottom, it is characterized in that: base of mutual inductor comprises the connecting cylinder that axis extends along the vertical direction, the upper end of connecting cylinder is provided with the upper flanges being connected with instrument transformer body, the lower end of connecting cylinder is provided with patchboard, in the tube chamber of connecting cylinder, be provided with the molecular sieve of ring-type, the endoporus of molecular sieve is configured for the cable-through hole that the wire of corresponding connection instrument transformer body and patchboard passes.
7. current transformer according to claim 6, is characterized in that: described patchboard is installed on connecting cylinder by lower end flanges, and described lower end flanges is fixedly arranged on the lower end of described connecting cylinder.
8. current transformer according to claim 7, is characterized in that: described patchboard is installed on the lower surface of described lower end flanges; Described molecular sieve is installed on the upper surface of described lower end flanges.
9. current transformer according to claim 7, is characterized in that: in described lower end flanges, be also provided with for stoping the protective cover of rainwater contact patchboard.
10. according to the current transformer described in claim 6 ~ 9 any one, it is characterized in that: described base of mutual inductor also comprises and is fixedly arranged on described upper flanges lower end and for supporting the support of described this body weight of instrument transformer, support comprises the load-bearing channel-section steel that two notches are oppositely arranged and the high direction of waist is extended along the vertical direction, described connecting cylinder is arranged between two load-bearing channel-section steels, and load-bearing channel-section steel is fixed in upper flanges by the bolt penetration hole of offering on side leg on it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310147384.5A CN104124047A (en) | 2013-04-25 | 2013-04-25 | Current transformer and current transformer base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310147384.5A CN104124047A (en) | 2013-04-25 | 2013-04-25 | Current transformer and current transformer base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104124047A true CN104124047A (en) | 2014-10-29 |
Family
ID=51769424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310147384.5A Pending CN104124047A (en) | 2013-04-25 | 2013-04-25 | Current transformer and current transformer base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104124047A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1513870A1 (en) * | 1965-06-14 | 1969-04-10 | Gen Electric | High voltage transformer |
| EP0037366A1 (en) * | 1980-03-27 | 1981-10-07 | Siemens Aktiengesellschaft | Current transformer with gas or fluid insulation |
| EP0037796A1 (en) * | 1980-03-27 | 1981-10-14 | Siemens Aktiengesellschaft | Current transformer having fluid insulant |
| CN202134390U (en) * | 2011-07-08 | 2012-02-01 | 大连北方互感器集团有限公司 | Voltage transformer used in railway traction substation |
-
2013
- 2013-04-25 CN CN201310147384.5A patent/CN104124047A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1513870A1 (en) * | 1965-06-14 | 1969-04-10 | Gen Electric | High voltage transformer |
| EP0037366A1 (en) * | 1980-03-27 | 1981-10-07 | Siemens Aktiengesellschaft | Current transformer with gas or fluid insulation |
| EP0037796A1 (en) * | 1980-03-27 | 1981-10-14 | Siemens Aktiengesellschaft | Current transformer having fluid insulant |
| CN202134390U (en) * | 2011-07-08 | 2012-02-01 | 大连北方互感器集团有限公司 | Voltage transformer used in railway traction substation |
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Application publication date: 20141029 |