CN205248095U - Equidistance connection in series -parallel changing -over formula current transformer - Google Patents
Equidistance connection in series -parallel changing -over formula current transformer Download PDFInfo
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- CN205248095U CN205248095U CN201521075400.5U CN201521075400U CN205248095U CN 205248095 U CN205248095 U CN 205248095U CN 201521075400 U CN201521075400 U CN 201521075400U CN 205248095 U CN205248095 U CN 205248095U
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Abstract
The utility model provides an equidistance connection in series -parallel changing -over formula current transformer. It includes the body, and four wiring boards set up first conducting rod and second conducting rod in the body to and series connection subassembly or parallelly connected subassembly, claviform second conducting rod sets up with one heart in pipy first conducting rod to the both ends setting of the body is all run through along the axis, the both ends difference fixed connection wiring board no. 1 and the wiring board no. 3 of first conducting rod, both ends respectively the fixed connection wiring board no. 4 and wiring board no. 2 of second conducting rod, between first conducting rod and second conducting rod, the wiring board of homonymy no. 2 and three wiring boards, wiring board no. 1 and four wiring boards of homonymy all are provided with insulating medium, when first conducting rod and the series connection of second conducting rod, wiring board no. 3 and wiring board no. 4 are connected to series connection subassembly both ends electricity respectively, when first conducting rod and second conducting rod are parallelly connected to allying oneself with the subassembly and connecting four electricity of wiring board no. 1 and line board, and connect three electricity of wiring board no. 2 and wiring board, it is fixed that the device can guarantee to pass in and out call taker location.
Description
Technical field
The utility model relates to High-Voltage Electrical Appliances field, is specially a kind of equidistant connection in series-parallel shifting Current Mutual InductanceDevice.
Background technology
Alone type current transformer is widely used as the capital equipment in power station, along with power industryDevelop rapidly, also more and more higher to the requirement of transformer, in order to meet power station layout and requirement functionThe requirement of the function and structure to transformer is also more and more higher. Present stage, power station was in order to overcome ACSRSofter, easily there is the shortcoming that wind is put, generally adopt hard tube mother; Due to hard tube, mother does not have ductility, and this justCause the female line bank of current transformer two ends and hard tube position must fix and can not change, but existing stand alone typeTransformer structurally will adopt the connecting mode that changes two contact tubes (to change two conducting rods conventionallySeries-parallel system) realize polytropic ratio, and the method that conventionally will change conducting rod connecting mode is generallyIn the line bank being connected with two conducting rods, add connector, then connector is connected with the bus in power station; ThisSample has just caused, with the line bank position of power station bus, variation has occurred, and cannot meet power station hard tube mother'sRequirement.
Utility model content
For problems of the prior art, the utility model provides a kind of changing-over convenient, can ensureThe fixing equidistant connection in series-parallel shifting current transformer of turnover electric current wiring position.
The utility model is to be achieved through the following technical solutions:
A kind of equidistant connection in series-parallel shifting current transformer comprises the body, and four terminal plates, are arranged on the bodyIn the first conducting rod and the second conducting rod, and series component or parallel component; The second bar-shaped conductionBar is arranged in the first conducting rod of tubulose with one heart, and all runs through the two ends setting of the body along axis; FirstThe two ends of conducting rod are fixedly connected with respectively terminal plate one and terminal plate three, the two ends of the second described conducting rodBe fixedly connected with respectively terminal plate four and terminal plate two; Between the first conducting rod and the second conducting rod, the connecing of homonymyBetween line plate two and terminal plate three, between the terminal plate one of homonymy and terminal plate four, be provided with dielectric; WhenWhen the first conducting rod and the series connection of the second conducting rod, series component two ends are electrically connected respectively terminal plate three and wiringPlate four; In the time of the first conducting rod and the parallel connection of the second conducting rod, parallel component is by terminal plate one and line plate four electricityConnect, and terminal plate two and terminal plate three are electrically connected.
Preferably, series component is U-shaped conductive plate, and conductive plate is fixed on the outside of the body, and they are two years oldEnd is respectively used to be electrically connected terminal plate three and terminal plate four, or connects terminal plate one and terminal plate two.
Preferably, on terminal plate one and terminal plate three, be respectively arranged with the company coordinating with the first conducting rod two endsConnect hole, on terminal plate two and terminal plate four, be respectively arranged with the connecting hole coordinating with the second conducting rod two ends.
Further, terminal plate one and terminal plate three are arranged vertically mutually, and terminal plate two and terminal plate four are mutualBe arranged vertically.
Further again, parallel component comprises change-over panel one and change-over panel two; Two change-over terminal of change-over panel oneMutually vertical, for connect terminal plate one and line plate four simultaneously; 2 two change-over terminal of change-over panel are hung down mutuallyDirectly, for connect terminal plate two and terminal plate three simultaneously.
Further again, on two links of change-over panel one and change-over panel two, be provided with terminal plate and realizeThe strip hole that bolt coordinates.
Compared with prior art, the utlity model has following useful technique effect:
A kind of equidistant connection in series-parallel shifting current transformer of the utility model, respectively two conducting rod settingsEach self-corresponding terminal plate, has ensured fixing wiring position and apart from width, has realized in transformer changing-overWhen connection in series-parallel, do not change with the female wiring position of hard tube, need to adjust after having solved transformer changing-over connection in series-parallelThe problem of the female position of whole hard tube; By the first and second pairs of different conducting rods of thickness that arrange, utilize peaceDress change-over panel one and change-over panel two, realize the parallel connection of first and second conducting rod, utilizes conductive plate realization is installedThe series connection of first and second conducting rod, thus realize the polytropic ratio of transformer, can better meet power stationRequirement.
Further, by the unique design of change-over panel one and change-over panel two structures, ensured to change at transformerWhile connecing connection in series-parallel, do not change with the female wiring position of hard tube, after changing again connection in series-parallel, carry out hard tube motherThe adjustment of position.
Further, the hole on change-over panel one and change-over panel two is strip hole, installs so at the scene mutuallyWhen sensor, be convenient to fine setting, better ensured the fixing of position.
Brief description of the drawings
Fig. 1 is the schematic diagram of structure described in the utility model example.
Fig. 2 is the schematic three dimensional views of structure described in the utility model example.
In figure: 1, the body; 2, the first conducting rod; 3, the second conducting rod; 4, conductive plate; 5, connectLine plate one; 6, terminal plate two; 7, terminal plate three; 8, terminal plate four; 9, change-over panel one; 10, turnChange plate two.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail, described in be to the utility modelExplanation instead of restriction.
A kind of equidistant connection in series-parallel shifting current transformer of the utility model, as shown in Figure 1, it comprises body1, four terminal plate of shell, is arranged on the first conducting rod 2 and the second conducting rod 3 in the body, and stringJoint group part or parallel component; The second bar-shaped conducting rod 3 is arranged on the first conducting rod 2 of tubulose with one heartIn, and all along axis run through the body 1 two ends arrange; The two ends of the first conducting rod 2 are fixedly connected with respectivelyTerminal plate 1 and terminal plate 37, the two ends of the second described conducting rod 3 are fixedly connected with respectively terminal plate48 and terminal plate 26; Between the first conducting rod 2 and the second conducting rod 3, terminal plate 26 Hes of homonymy37 of terminal plates, are provided with dielectric between the terminal plate 1 of homonymy and terminal plate 48; WhenWhen one conducting rod 2 and the second conducting rod 3 are connected, series component two ends are electrically connected respectively terminal plate 37 HesTerminal plate 48; In the time of the first conducting rod 2 and the second conducting rod 3 parallel connection, parallel component is by terminal plate one5 and line plate 48 electrical connection, and by terminal plate 26 and terminal plate 37 electrical connections.
Wherein, as shown in Figure 2, series component is U-shaped conductive plate 4, and conductive plate 4 is fixed on the body1 outside, its two ends are respectively used to be electrically connected terminal plate 37 and terminal plate 48, or connect terminal plateOne 5 and terminal plate 26.
Wherein, as depicted in figs. 1 and 2, on terminal plate 1 and terminal plate 37, be respectively arranged with andThe connecting hole that one conducting rod 2 two ends coordinate, is respectively arranged with on terminal plate 26 and terminal plate 48 and theThe connecting hole that two conducting rod 3 two ends coordinate. Terminal plate 1 and terminal plate 37 are arranged vertically mutually, connectLine plate 26 and terminal plate 48 are arranged vertically mutually. Parallel component comprises change-over panel 1 and change-over panel two10; Two change-over terminal of change-over panel 1 are mutually vertical, for connect terminal plate 1 and line plate four simultaneously8; 2 10 two change-over terminal of change-over panel are mutually vertical, for connect terminal plate 26 and terminal plate three simultaneously7. On two links of change-over panel 1 and change-over panel 2 10, be provided with and realize bolt with terminal plate and joinThe strip hole closing.
Concrete, the utility model provides a kind of equidistant connection in series-parallel shifting current transformer, as Fig. 1 figureShown in, comprise the body 1, the first conducting rod 2, the second conducting rod 3, conductive plate 4, terminal plate one 5 andTerminal plate 26; Above-mentioned current transformer, also comprises terminal plate 37, terminal plate 48, change-over panel one9, change-over panel 2 10; Wherein upper surface and the side surface of change-over panel 1 and change-over panel 2 10 all arrangeThere is strip through hole; Above-mentioned the second conducting rod 3 is metal bar material, and the first conducting rod 2 is metal tube,The second conducting rod 3 is positioned at the first conducting rod 2 bodys, concentric with the first conducting rod 2, the first conducting rodRun through two ends, body left and right; As shown in Figure 1, the right-hand member phase of described terminal plate 1 and the first conducting rod 2Connect, the left side of terminal plate 26 and the second conducting rod 3 is connected; Above-mentioned conductive plate 4 is fixed on the body 1Front, one end, left side of conductive plate 4 is connected by the left end of terminal plate 37 and the first conducting rod 2;One end, right side of conductive plate 4 is connected by the right side of terminal plate 48 and the second conducting rod 3, thus shapeBecome series relationship; Between above-mentioned the first conducting rod 2 and the second conducting rod 3, terminal plate 26 and terminal plate three7, between terminal plate 1 and terminal plate 48, all there is dielectric.
In the time that conductive plate 4 is installed, the first conducting rod and the second conducting rod, in series connection, are positioned at mutual inductanceThe terminal plate 1 on device the right and the terminal plate 26 that is positioned at the left side respectively with the hard tube mother of power station turnover electric currentBe connected, the terminal plate 1 that electric current enters by being positioned at right side from the hard tube mother of right-hand member enters by the first conductionBar, further flows into terminal plate 37, further flows into conductive plate, further flows into terminal plate 48 HesThe second conducting rod 3, finally female outflow of hard tube from being connected with terminal plate 26.
Above-mentioned terminal plate 1 and terminal plate 26, wherein terminal plate 1 and terminal plate 26 arrange respectivelyHave the hole matching with the first conducting rod 2 and the second conducting rod 3, its upper surface is provided with and change-over panel one9 and the hole that matches of change-over panel 2 10; Terminal plate 37, terminal plate 48 sides are provided with first and leadThe hole that electric pole 2 and the second conducting rod 3 match, is provided with gusset piece and matches in the dead ahead in this holeHole, after wherein the length of the U-shaped bottom of conductive plate 4 and terminal plate 37 and terminal plate 48 installedDistance match.
Above-mentioned change-over panel 1, change-over panel 2 10, upper surface respectively with terminal plate 1 and terminal plate 26After laminating, the hole of side surface matches and fits with terminal plate 48 and terminal plate 37 respectively respectively.
After conductive plate 4 is pulled down, load onto change-over panel 1 and change-over panel the 2 10, first conducting rod 2 HesThe second conducting rod 3 is in state in parallel. The upper surface of change-over panel 9 and terminal plate 1 are connected, with upper tableThe side panel that face is vertical and terminal plate 48 are connected; Change-over panel 2 10 upper surfaces and terminal plate 26 are connectedSide surface and terminal plate 37 are connected. The turnover aluminum pipe mother stock in power station is not and change-over panel 1 and change-over panel two10 upper surface is connected, and electric current is by entering by terminal plate 1 with the change-over panel 1 of hard tube parent phase connectionFlow to respectively the first conducting rod 2 and the second conducting rod 3 with terminal plate 48, then pass through terminal plate 26 HesTerminal plate 37 confluxes, further from flowing out with the joining hard tube of change-over panel 2 10 is female.
In sum, a kind of equidistant connection in series-parallel shifting current transformer of this utility model can be by string alsoThe changing-over (changing the number of turn one time) of connection realizes polytropic ratio, and in changing-over the position of two ends terminal plateDo not change, can avoid power station in the time that transformer is carried out to changing-over, to adjust bus position, meetThe practical hard tube mother's in power station requirement.
More than exemplifying is only to illustrate of the present utility model, does not form guarantor of the present utility modelProtect the restriction of scope, the every and same or analogous design of the utility model all belongs to protection model of the present inventionWithin enclosing.
Claims (6)
1. an equidistant connection in series-parallel shifting current transformer, is characterized in that, comprises the body (1), fourIndividual terminal plate, is arranged on the first conducting rod (2) and the second conducting rod (3) in the body, and series connectionAssembly or parallel component; Bar-shaped the second conducting rod (3) is arranged on the first conducting rod of tubulose with one heart(2) in, and all along axis run through the body (1) two ends arrange;
The two ends of described the first conducting rod (2) are fixedly connected with respectively terminal plate one (5) and terminal plate three(7), the two ends of described the second conducting rod (3) are fixedly connected with respectively terminal plate four (8) and terminal plateTwo (6); Between the first conducting rod (2) and the second conducting rod (3), the terminal plate two (6) of homonymy andBetween terminal plate three (7), between the terminal plate one (5) of homonymy and terminal plate four (8), be provided with insulationMedium;
In the time of the first conducting rod (2) and the second conducting rod (3) series connection, series component two ends are electrically connected respectivelyConnect terminal plate three (7) and terminal plate four (8);
In the time of the first conducting rod (2) and the second conducting rod (3) parallel connection, parallel component is by terminal plate oneAnd line plate four (8) electrical connection, and terminal plate two (6) and terminal plate three (7) are electrically connected (5).
2. the equidistant connection in series-parallel shifting of one according to claim 1 current transformer, its feature existsIn, series component is U-shaped conductive plate (4), conductive plate (4) be fixed on the body (1) outsideSide, its two ends are respectively used to be electrically connected terminal plate three (7) and terminal plate four (8), or connect terminal plateOne (5) and terminal plate two (6).
3. the equidistant connection in series-parallel shifting of one according to claim 1 current transformer, its feature existsIn, on terminal plate one (5) and terminal plate three (7), be respectively arranged with and the first conducting rod (2) two endsThe connecting hole coordinating, is respectively arranged with and the second conducting rod on terminal plate two (6) and terminal plate four (8)(3) connecting hole that two ends coordinate.
4. the equidistant connection in series-parallel shifting of one according to claim 3 current transformer, its feature existsIn, terminal plate one (5) and terminal plate three (7) are arranged vertically mutually, terminal plate two (6) and wiringPlate four (8) is arranged vertically mutually.
5. the equidistant connection in series-parallel shifting of one according to claim 4 current transformer, its feature existsIn, parallel component comprises change-over panel one (9) and change-over panel two (10); Two of change-over panel one (9)Change-over terminal is mutually vertical, for connect terminal plate one (5) and line plate four (8) simultaneously; Change-over panel two(10) two change-over terminal are mutually vertical, for connect terminal plate two (6) and terminal plate three simultaneously(7)。
6. the equidistant connection in series-parallel shifting of one according to claim 5 current transformer, its feature existsIn, on two links of change-over panel one (9) and change-over panel two (10), be provided with terminal plate realThe strip hole that existing bolt coordinates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521075400.5U CN205248095U (en) | 2015-12-21 | 2015-12-21 | Equidistance connection in series -parallel changing -over formula current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521075400.5U CN205248095U (en) | 2015-12-21 | 2015-12-21 | Equidistance connection in series -parallel changing -over formula current transformer |
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| Publication Number | Publication Date |
|---|---|
| CN205248095U true CN205248095U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521075400.5U Active CN205248095U (en) | 2015-12-21 | 2015-12-21 | Equidistance connection in series -parallel changing -over formula current transformer |
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| CN (1) | CN205248095U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107705970A (en) * | 2016-08-09 | 2018-02-16 | 天水长开互感器制造有限公司 | A kind of current transformer |
| CN109407034A (en) * | 2018-12-12 | 2019-03-01 | 云南电网有限责任公司昆明供电局 | A kind of synchronization of great current mutual inductor first and second termination |
-
2015
- 2015-12-21 CN CN201521075400.5U patent/CN205248095U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107705970A (en) * | 2016-08-09 | 2018-02-16 | 天水长开互感器制造有限公司 | A kind of current transformer |
| CN109407034A (en) * | 2018-12-12 | 2019-03-01 | 云南电网有限责任公司昆明供电局 | A kind of synchronization of great current mutual inductor first and second termination |
| CN109407034B (en) * | 2018-12-12 | 2023-09-08 | 云南电网有限责任公司昆明供电局 | Primary and secondary synchronous wiring device of large-current transformer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |