CN201444436U - Core clamp with low structural part loss - Google Patents
Core clamp with low structural part loss Download PDFInfo
- Publication number
- CN201444436U CN201444436U CN2008202173556U CN200820217355U CN201444436U CN 201444436 U CN201444436 U CN 201444436U CN 2008202173556 U CN2008202173556 U CN 2008202173556U CN 200820217355 U CN200820217355 U CN 200820217355U CN 201444436 U CN201444436 U CN 201444436U
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- Prior art keywords
- clamping piece
- lower clamping
- electrical communication
- junction
- upper clamping
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Abstract
The utility model discloses a core clamp with low structural part loss, which comprises a transformer core, upper clamping parts and lower clamping parts, wherein the upper and the lower clamping parts are respectively arranged on the upper and the lower parts of the transformer core, tie plates are arranged between the upper and the lower clamping parts, side beam plates are respectively fixed between both ends of the upper and the lower clamping parts, upper beam plates are fixed between the upper parts of the upper clamping parts, base plates are fixed between the bottoms of the lower clamping parts, the joints between the ends of the upper and the lower clamping parts at one side and the side beam plates are electrically connected, the joints between the ends at the other side and the side beam plates are electrically connected at one side, and are electrically disconnected at the other side, the joints between the upper beam plates and the upper clamping parts and between the base plates and the lower clamping parts are electrically connected at one side, and are electrically disconnected at the other side, and the upper clamping parts are electrically connected with the lower clamping parts through the tie plates. Consequently, the structure can effectively block the path of third harmonic in the internal structural parts of the transformer body, thus reducing the additional loss of the structural parts.
Description
Technical field
The utility model relates to a kind of triple-frequency harmonics clamps the supplementary load loss that produce with structural member at the inner iron core of transformer structure that reduces, particularly a kind of reduction low-voltage, big electric current product, the used low structural member loss iron core clamping device of transformer of employing Yy winding connection mode.
Background technology
As everyone knows, transformer self is exactly a harmonic source, after the transformer energising, because ferromagnetic material is non-linear, will produce the high order harmonic component more than three times, wherein based on triple-frequency harmonics.Usually triple harmonic current accounts for 30% of rated current, triple-frequency harmonics has the zero sequence characteristic, when transformer coli winding adopts Yy joint group label, winding connection way has determined one, secondary circuit does not all constitute the closed-loop path, thereby can not provide the triple-frequency harmonics path, this moment, iron core was overflowed in the triple-frequency harmonics river, pass iron core folder and fuel tank closure, and produce the structural member supplementary load loss therein, along with the increase of transformer capacity and the rising of line voltage distribution, triple harmonic current also increases thereupon, its supplementary load loss that produce in structural member are also corresponding can be increased, especially working as transformer is low-voltage, during big electric current product, this structural member supplementary load loss situation is even more serious, this part loss will cause that structural member is overheated, adjacent insulating part is easily aging, the total load loss of transformer increases, thereby influences the safe operation of transformer, improves the power transformation operation cost of transformer.
The utility model content
The purpose of this utility model is: a kind of low structural member loss iron core clamping device is provided, it is by the blocking-up path of triple-frequency harmonics in transformer body interior structural member, thus reach reduce the structural member supplementary load loss, prevent that structural member is overheated, delay insulating part aging, guarantee the transformer safe operation and reduce the purpose of transformer power transformation operation cost.
The technical scheme that its purpose that realizes the utility model adopts is: a kind of low structural member loss iron core clamping device, comprise transformer core and the member that is used to clamp transformer core, described member comprises upper clamping piece, lower clamping piece, last beam slab, the curb girder plate, arm-tie and footing plate, upper clamping piece is positioned at the transformer core upper position and front and back are symmetrical arranged, lower clamping piece is positioned at the transformer core lower position and front and back are symmetrical arranged, be provided with arm-tie between upper clamping piece and the lower clamping piece, be fixedly connected with the curb girder plate respectively between upper clamping piece and the lower clamping piece both side ends, upper clamping piece is fixedly connected with beam slab between the top, and lower clamping piece is fixedly connected with footing plate between the bottom; The junction of described upper clamping piece one side end and curb girder plate is electrical communication, the junction of end side and curb girder plate is electrical communication on one side, another side is electric disconnection, the junction of lower clamping piece one side end and curb girder plate is electrical communication, the junction of end side and curb girder plate is electrical communication on one side, another side is electric disconnection, junction between last beam slab and the upper clamping piece is electrical communication on one side, another side is electric disconnection, junction between footing plate and the lower clamping piece is electrical communication on one side, another side is electric disconnection, is connected by arm-tie between upper clamping piece and the lower clamping piece and realizes electrical communication.
Specifically, the structure of described electrical communication is to be provided with insulation board between described two connecting elementss, and by bolt, nut and retaining dish spring that member is fastening; The structure of described electric disconnection is provided with large washer for described member, is respectively arranged with insulation board between two connecting elementss and between member and the large washer, and by insulated bolt, nut and retaining dish spring that member is fastening.
Furtherly, described insulated bolt is for being pressed with colored groove in that its screw thread is latter half of, and is wound with the bolt of insulating tape at described colored groove place.
The beneficial effects of the utility model are: after the utility model adopts above scheme, can intercept the path of triple-frequency harmonics in transformer device structure spare effectively, reduce consequent structural member supplementary load loss, optimize the technical performance index of product, can reduce simultaneously the consumption of main raw material(s)s such as copper cash, silicon steel sheet indirectly, improve the economy of product, and increase manufacturing cost hardly, easy construction, effect is obvious.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Structural representation when Fig. 4 is member junction electrical communication.
The structural representation of Fig. 5 when to be that the member junction is electric disconnect.
Beam slab 5. curb girder plates 6. arm-ties 7. footing plates 8. insulation boards 9. bolts 10. nuts 11. retaining dish springs 12. large washers 13. insulated bolts 14. insulating tapes on 1. transformer cores, 2. upper clamping pieces, 3. lower clamping pieces 4. among the figure
Embodiment.
With preferred embodiment the utility model is further described in conjunction with the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
A kind of low structural member loss iron core clamping device shown in Figure 3 as Fig. 1 Fig. 2, comprise transformer core 1 and the hardware that is used to clamp transformer core 1, this member comprises upper clamping piece 2, lower clamping piece 3, last beam slab 4, curb girder plate 5, arm-tie 6 and footing plate 7, upper clamping piece 2 is positioned at transformer core 1 upper position and front and back are symmetrical arranged, lower clamping piece 3 is positioned at transformer core 1 lower position and front and back are symmetrical arranged, be provided with six arm-ties 6 of low magnetic conductivity between upper clamping piece 2 and the lower clamping piece 3, be positioned at each three of transformer core 1 front and back, be fixedly connected with curb girder plate 5 respectively between upper clamping piece 2 and lower clamping piece 3 both side ends, be fixedly connected with three between upper clamping piece 2 tops and go up beam slab 4, be fixedly connected with three footing plates 7 between lower clamping piece 3 bottoms.
For making upper clamping piece 2 and lower clamping piece 3 not constitute two loops, the junction of upper clamping piece 2 one side ends and curb girder plate 5 is electrical communication, the junction of end side and curb girder plate 5 is electrical communication on one side, another side is electric disconnection, the junction of lower clamping piece 3 one side ends and curb girder plate 5 is electrical communication, the junction of end side and curb girder plate 5 is electrical communication on one side, another side is electric disconnection, junction between last beam slab 4 and the upper clamping piece 2 is electrical communication on one side, another side is electric disconnection, junction between footing plate 7 and the lower clamping piece 3 is electrical communication on one side, another side is electric disconnection, be connected by arm-tie 6 between upper clamping piece 2 and the lower clamping piece 3 and realize electrical communication, promptly in the clamping component of whole transformer core 1, have junction, 20 place, eight places wherein are that electric disconnection connects, all the other connect for electrical communication, by above measure, make and only constitute a loop between upper clamping piece 2 and the lower clamping piece 3 by arm-tie 6, all the other members then do not constitute second loop with it, thereby reach the purpose of blocking-up triple-frequency harmonics path in member.
As shown in Figure 4, when needs realize that in the member junction electrical communication connects, be connected to example with upper clamping piece 2 and curb girder plate 5, an insulation board 8 then is set between upper clamping piece 2 that will connect and curb girder plate 5, and by bolt 9, nut 10 and retaining dish spring 11 that upper clamping piece 2 and curb girder plate 5 is fastening.
As shown in Figure 5, when needs realize that in the member junction electric disconnection connects, be connected to example with upper clamping piece 2 and curb girder plate 5, an insulation board 8 then is set between upper clamping piece 2 that will connect and curb girder plate 5, and a large washer 12 is set on upper clamping piece 2, an insulation board 8 is set between upper clamping piece 2 and large washer 14 again, and adopts at the latter half of insulated bolt 13 that is pressed with colored groove and is wound with insulating tape 14 at the embossed channel place of screw thread, nut 10 and retaining dish spring 11 that upper clamping piece 2 and curb girder plate 5 is fastening in advance.
Electric disconnection between all the other members is connected with electrical communication, and is all identical with above-mentioned connected mode.
With above-mentioned foundation embodiment of the present utility model is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from the utility model technological thought.Technical scope of the present utility model is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (4)
1. one kind low structural member loss iron core clamping device, comprise transformer core (1) and be used to clamp the member of transformer core (1), described member comprises upper clamping piece (2), lower clamping piece (3), last beam slab (4), curb girder plate (5), arm-tie (6) and footing plate (7), upper clamping piece (2) is positioned at transformer core (1) upper position and front and back are symmetrical arranged, lower clamping piece (3) is positioned at transformer core (1) lower position and front and back are symmetrical arranged, be provided with arm-tie (6) between upper clamping piece (2) and the lower clamping piece (3), be fixedly connected with curb girder plate (5) respectively between upper clamping piece (2) and lower clamping piece (3) both side ends, upper clamping piece (2) is fixedly connected with beam slab (4) between the top, lower clamping piece (3) is fixedly connected with footing plate (7) between the bottom, it is characterized in that: the junction of described upper clamping piece (2) one side ends and curb girder plate (5) is electrical communication, the junction of end side and curb girder plate (5) is electrical communication on one side, another side is electric disconnection, the junction of lower clamping piece (3) one side ends and curb girder plate (5) is electrical communication, the junction of end side and curb girder plate (5) is electrical communication on one side, another side is electric disconnection, junction between last beam slab (4) and the upper clamping piece (2) is electrical communication on one side, another side is electric disconnection, junction between footing plate (7) and the lower clamping piece (3) is electrical communication on one side, another side is electric disconnection, is connected by arm-tie (6) between upper clamping piece (2) and the lower clamping piece (3) and realizes electrical communication.
2. a kind of low structural member loss iron core clamping device according to claim 1, it is characterized in that: the structure of described electrical communication is to be provided with insulation board (8) between described two connecting elementss, and by bolt (9), nut (10) and retaining dish spring (11) that member is fastening.
3. a kind of low structural member loss iron core clamping device according to claim 1, it is characterized in that: the structure of described electric disconnection is provided with large washer (12) for described member, between two members that connect and be respectively arranged with insulation board (8) between member and the large washer (12), and it is fastening with member to pass through insulated bolt (13), nut (10) and retaining dish spring (11).
4. a kind of low structural member loss iron core clamping device according to claim 3 is characterized in that: described insulated bolt (13) is for being pressed with colored groove in that its screw thread is latter half of, and is wound with insulating tape (14) at described colored groove place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008202173556U CN201444436U (en) | 2008-12-01 | 2008-12-01 | Core clamp with low structural part loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008202173556U CN201444436U (en) | 2008-12-01 | 2008-12-01 | Core clamp with low structural part loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201444436U true CN201444436U (en) | 2010-04-28 |
Family
ID=42549117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008202173556U Expired - Fee Related CN201444436U (en) | 2008-12-01 | 2008-12-01 | Core clamp with low structural part loss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201444436U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097226A (en) * | 2015-08-26 | 2015-11-25 | 人民电器集团江苏斯诺成套设备工程有限公司 | Low temperature rise dry-type transformer |
| CN105989998A (en) * | 2015-03-02 | 2016-10-05 | 江西变电设备有限公司 | High-overload high-temperature-resistant oil-immersed transformer |
| CN110033928A (en) * | 2019-05-21 | 2019-07-19 | 保定天威保变电气股份有限公司 | A kind of fixed flow-guiding structure of transformer core stem pulling plate and its method of river diversion |
-
2008
- 2008-12-01 CN CN2008202173556U patent/CN201444436U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105989998A (en) * | 2015-03-02 | 2016-10-05 | 江西变电设备有限公司 | High-overload high-temperature-resistant oil-immersed transformer |
| CN105097226A (en) * | 2015-08-26 | 2015-11-25 | 人民电器集团江苏斯诺成套设备工程有限公司 | Low temperature rise dry-type transformer |
| CN110033928A (en) * | 2019-05-21 | 2019-07-19 | 保定天威保变电气股份有限公司 | A kind of fixed flow-guiding structure of transformer core stem pulling plate and its method of river diversion |
| CN110033928B (en) * | 2019-05-21 | 2024-04-19 | 保定天威保变电气股份有限公司 | Transformer core column pulling plate fixing flow guiding structure and flow guiding method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100428 Termination date: 20121201 |