CN203377066U - SCB13-NX1 maintenance-free three-phase resin insulating dry-type transformer - Google Patents
SCB13-NX1 maintenance-free three-phase resin insulating dry-type transformer Download PDFInfo
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- CN203377066U CN203377066U CN201320423884.2U CN201320423884U CN203377066U CN 203377066 U CN203377066 U CN 203377066U CN 201320423884 U CN201320423884 U CN 201320423884U CN 203377066 U CN203377066 U CN 203377066U
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Abstract
The utility model discloses an SCB13-NX1 maintenance-free three-phase resin insulating dry-type transformer and belongs to dry-type transformers. According to the SCB13-NX1 maintenance-free three-phase resin insulating dry-type transformer, iron cores (3) of three sets of high-tension coils (1) and low-tension coils (2) are connected to the upper portion of a base (11) through three sets of pressure screws (5) and cushion blocks (6), clamping pieces (4) are connected to the upper ends of the iron cores of the three sets of high-tension coils and low-tension coils through three sets of pressure screws and cushion blocks, low-tension neutral point copper bars (10) are arranged on the upper portions of the clamping pieces and are connected with outlet terminals of the three low-tension coils, the three low-tension coils support low-tension wiring terminals through low-tension supports (8), high-tension supports (7) support high-tension wiring terminals, the two ends of a connecting rod (9) are connected with the high-tension supports and outlet terminals of the three high-tension coils respectively, and a plurality of small air channels are formed in the low-tension coils, wrapping the iron cores (3), at equal intervals. The SCB13-NX1 maintenance-free three-phase resin insulating dry-type transformer achieves the maintenance-free purpose by means of the honeycomb-type small air channels.
Description
Technical field
The utility model belongs to a kind of dry-type transformer, relate to a kind ofly not with the non-maintaining dry-type transformer of fan of dry type transformer and temperature control, particularly relate to a kind of non-maintaining three-phase resin insulating dry type transformer of SCB13-NX1 that power quality and the higher user of security requirement are used that is specially adapted to.
Background technology
Known, dry-type transformer is mainly used in the distribution places such as power plant electricity consumption, electric substation's electricity consumption and skyscraper, commercial center, petrochemical factory, subterranean railway; Dry-type transformer on market is mostly SCB10 series dry-type transformer, this serial dry-type transformer in use no-load loss, no-load current and noise aspect is all large, especially SCB10 series dry-type transformer must regular being safeguarded, particularly the annexes such as the fan of dry type transformer that must configure and temperature control overhauled.If these annexes break down, can export trip signal to high tension loop, force the dry-type transformer interruption maintenance, user's power quality and fail safe all reduce greatly thus.
Summary of the invention
In order to overcome the deficiency in background technology, the utility model discloses the non-maintaining three-phase resin insulating dry type transformer of a kind of SCB13-NX1, the utility model is by adopting the honeycomb fashion small airway to realize non-maintaining demand.
For realizing above-mentioned utility model purpose, the utility model adopts following technical scheme:
The non-maintaining three-phase resin insulating dry type transformer of a kind of SCB13-NX1, comprise high-tension coil, low-voltage coil, iron core, folder, nail pressing, cushion block, high-voltage strut, the low pressure pillar, connecting rod, low pressure neutral point copper bar and base, base top is by three groups of nail pressings, cushion block connects three cover high-tension coils, the iron core of low-voltage coil, at three cover high-tension coils, the upper end of the iron core of low-voltage coil is by three groups of nail pressings, cushion block connects folder, described folder top is provided with low pressure neutral point copper bar, low pressure neutral point copper bar connects the outlet terminal of three low-voltage coils, three low-voltage coils are by low pressure shore supports low-voltage wiring terminal, high-voltage strut supports high-voltage connection terminal, the two ends of connecting rod respectively with high-voltage strut, the line of three high-tension coil outlet terminals, equidistantly be provided with a plurality of small airways on the described low-voltage coil that is wrapped in the iron core outside.
The non-maintaining three-phase resin insulating dry type transformer of described SCB13-NX1, described small airway is the honeycomb fashion small airway.
The non-maintaining three-phase resin insulating dry type transformer of described SCB13-NX1, high-tension coil and low-voltage coil are set on three iron core column of iron core.
The non-maintaining three-phase resin insulating dry type transformer of described SCB13-NX1, described iron core upper end is fixed on the folder bottom, the iron core lower end and be seated in described base above.
Owing to having adopted technique scheme, the utlity model has following beneficial effect:
The non-maintaining three-phase resin insulating dry type transformer of SCB13-NX1 described in the utility model has following effect:
1, temperature rise is low, need not be with fan of dry type transformer, but full-load run.It should be noted that dry-type transformer in the market is all with fan of dry type transformer, and generally reaching under full load situation in normal use procedure, blower fan must start operation.And the utility model be not with in the blower fan situation, get final product full-load run, not yet find academic journals of the same field or patent documentation through retrieval, so the utility model belongs to pioneering at home, in domestically leading status.
2, non-maintaining, security performance is high.Because blower fan and temperature control can be with in the utility model design, so there is not the annex damaged condition, effectively raise safety in operation, and realize effectively being deep into load center by the non-maintaining of real meaning.
3, the utility model is greater than more than 30 years designed life.
4, the utility model noise is low; Noise of the present utility model, than common low 15% left and right (falling 5～10dB) of SCB10 series dry-type transformer, can be used in the resident load central area.
5, the utility model is energy-efficient, and operating cost is low; Advantage aspect no-load loss and load loss is especially outstanding, no-load loss and no-load current are than the serial reduction of SCB10 more than 28%, load loss is than the serial reduction of SCB10 more than 10%, so in the situation that normal load running, operating cost reduces greatly.With a SCB13-1250/10-NX1, the SCB10-1250/10 logical with a Daepori compares comparatively example, and every annual operating cost is saved (the transformer load rate is according to 0.7 calculating): D=0.56*8760*[(2090-1505)+(9690-8720) * 0.7
2]/1000=5201 (unit).
The accompanying drawing explanation
Fig. 1 is high pressure side structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is clamping structure schematic diagram of the present utility model;
The C of Fig. 4-1 folder of the present utility model is to view;
The D of Fig. 4-2 folder of the present utility model is to view;
Fig. 5 is nail pressing assembly structure schematic diagram of the present utility model;
In figure: 1, high-tension coil; 2, low-voltage coil; 3, iron core; 4, folder; 5, nail pressing; 6, cushion block; 7, high-voltage strut; 8, low pressure pillar; 9, connecting rod; 10, low pressure neutral point copper bar; 11, base; 12, honeycomb fashion small airway.
Embodiment
Can explain in more detail the utility model by the following examples, the utility model is not limited to the following examples, and open the purpose of this utility model is intended to protect all changes and improvements in the utility model scope;
By reference to the accompanying drawings 1, 2, 3, the non-maintaining three-phase resin insulating dry type transformer of SCB13-NX1 described in 4 and 5, comprise high-tension coil 1, low-voltage coil 2, iron core 3, folder 4, nail pressing 5, cushion block 6, high-voltage strut 7, low pressure pillar 8, connecting rod 9, low pressure neutral point copper bar 10 and base 11, base 11 tops are by three groups of nail pressings 5, cushion block 6 connects three cover high-tension coils 1, the iron core 3 of low-voltage coil 2, iron core 3 lower ends and be seated in described base 11 above, high-tension coil 1 and low-voltage coil 2 are set on three iron core column of iron core 3, at three cover high-tension coils 1, the upper end of the iron core 3 of low-voltage coil 2 is by three groups of nail pressings 5, cushion block 6 connects folder 4, described iron core 3 upper ends are fixed on folder 4 bottoms, described folder 4 tops are provided with low pressure neutral point copper bar 10, low pressure neutral point copper bar 10 connects the outlet terminal of three low-voltage coils 2, three low-voltage coils 2 support low-voltage wiring terminal by low pressure pillar 8, high-voltage strut 7 supports high-voltage connection terminals, the two ends of connecting rod 9 respectively with high-voltage strut 7, the line of three high-tension coil 1 outlet terminals, equidistantly be provided with a plurality of honeycomb fashion small airways 12 on the described low-voltage coil 2 that is wrapped in iron core 3 outsides.
Further explain by reference to the accompanying drawings the utility model;
Low-voltage coil of dry type transformer described in 1,3 and 42 adopts honeycomb fashion small airway 12 structures by reference to the accompanying drawings, this kind of structure overcome the eddy current that coil big airways Air in the past easily forms, thereby improved the efficiency of coil circulation of air, improve the radiating efficiency of air flue, also promoted the intensity of coil simultaneously.This simultaneously, has adopted low-temperature-rise when the Design of Transformer coil again, is generally lower than 85K.Main method is (take SCB13-1250/10-NX1 as example):
(1), strengthen the area of wire, reduce load loss: the sectional area of wire of coiling is by original low pressure 1600mm
2with high pressure 45mm
2change present low pressure 2300mm into
2with high pressure 56mm
2;
(2), enlarge area of dissipation: the area of dissipation of coil is by original 18.5m
2change present 26.3m into
2;
(3) the raising heat radiation is efficient: adopt cellulor formula air flue and folder 4 " as shown in Figure 4 " to adopt the band steel structure;
(4) adopt high-quality silicon steel sheet, reduce no-load loss: iron core 3 adopts the high magnetic conduction silicon steel sheet of high-quality cold-rolled orientation silicon steel sheet 23ZH90 high-quality, and specific loss is low, and the B800 value is high, 45 ° of full bias seams, and the ladder lamination, reduced no-load loss.
As illustrated in fig. 1 and 2, dry-type transformer iron core 3 described in the utility model is to have folder 4 fixing, and is seated in above base 11.Iron core 3 adopts the pulling plate structure of high-strength polyester band colligation in the process of stepping up, and makes processing technology unshakable in one's determination simple, reliable in quality.
On the high-tension coil 1 of dry-type transformer as described in Fig. 1,2,3 and 5 and three iron core column that low-voltage coil 2 is set in iron core 3, and be arranged on above folder 4 coil is played to the effect that compresses and support by nail pressing 5 and cushion block 6.Adopt the described structure of Fig. 5 to improve the anti-short circuit capability of product, reduced noise.
As illustrated in fig. 1 and 2, the connecting rod 9 of described dry-type transformer is the line of three high-tension coil 1 outlet terminals, three phase places that three high-tension coils 1 are connected in circuit (A, B, C three-phase) triangularity connection, and support high-voltage connection terminal by high-voltage strut 7.Connecting rod 9 is to adopt the copper pipe of external diameter 16mm wall thickness 1.5mm to make, and has an enabling capabilities strong, easily the characteristics of processing; High-voltage strut 7 supports high-voltage connection terminal reliably, effectively provides users with the convenient.
Due to low these the large characteristics of the non-maintaining three-phase resin insulating dry type transformer of SCB13-NX1 of the present utility model design temperature rise, do not need blower fan and temperature control are installed, reached the non-maintaining of real meaning.
The utility model does not describe part in detail for prior art.
Claims (4)
1. the non-maintaining three-phase resin insulating dry type transformer of SCB13-NX1, comprise high-tension coil (1), low-voltage coil (2), iron core (3), folder (4), nail pressing (5), cushion block (6), high-voltage strut (7), low pressure pillar (8), connecting rod (9), low pressure neutral point copper bar (10) and base (11) is characterized in that: base (11) top is by three groups of nail pressings (5), cushion block (6) connects three cover high-tension coils (1), the iron core (3) of low-voltage coil (2), at three cover high-tension coils (1), the upper end of the iron core (3) of low-voltage coil (2) is by three groups of nail pressings (5), cushion block (6) connects folder (4), described folder (4) top is provided with low pressure neutral point copper bar (10), low pressure neutral point copper bar (10) connects the outlet terminal of three low-voltage coils (2), three low-voltage coils (2) support low-voltage wiring terminal by low pressure pillar (8), high-voltage strut (7) supports high-voltage connection terminal, the two ends of connecting rod (9) respectively with high-voltage strut (7), the line of three high-tension coils (1) outlet terminal, described being wrapped on the outside low-voltage coil (2) of iron core (3) equidistantly is provided with a plurality of small airways.
2. the non-maintaining three-phase resin insulating dry type transformer of SCB13-NX1 according to claim 1, it is characterized in that: described small airway is honeycomb fashion small airway (12).
3. the non-maintaining three-phase resin insulating dry type transformer of SCB13-NX1 according to claim 1, it is characterized in that: high-tension coil (1) and low-voltage coil (2) are set on three iron core column of iron core (3).
4. the non-maintaining three-phase resin insulating dry type transformer of SCB13-NX1 according to claim 1, it is characterized in that: described iron core (3) upper end is fixed on folder (4) bottom, iron core (3) lower end and be seated in described base (11) above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320423884.2U CN203377066U (en) | 2013-07-17 | 2013-07-17 | SCB13-NX1 maintenance-free three-phase resin insulating dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320423884.2U CN203377066U (en) | 2013-07-17 | 2013-07-17 | SCB13-NX1 maintenance-free three-phase resin insulating dry-type transformer |
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| Publication Number | Publication Date |
|---|---|
| CN203377066U true CN203377066U (en) | 2014-01-01 |
Family
ID=49839581
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320423884.2U Expired - Fee Related CN203377066U (en) | 2013-07-17 | 2013-07-17 | SCB13-NX1 maintenance-free three-phase resin insulating dry-type transformer |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105321671A (en) * | 2014-07-07 | 2016-02-10 | 郑州金源特变电气有限公司 | Novel efficient energy-saving open wound iron core dry type transformer |
| CN105336479A (en) * | 2015-11-21 | 2016-02-17 | 河南铜牛变压器有限公司 | Maintenance-free three-phase efficient and energy-saving electric furnace dry type transformer |
| CN105575628A (en) * | 2016-01-27 | 2016-05-11 | 河南铜牛变压器有限公司 | Point-and-shoot maintenance-free energy-saving dry type transformer |
| CN105895327A (en) * | 2014-12-18 | 2016-08-24 | 郑州远见安全装备股份有限公司 | High-efficiency and energy-saving mining explosion-proof mobile substation |
| CN107887118A (en) * | 2017-11-30 | 2018-04-06 | 浙江派尔电气有限公司 | A kind of dry-type transformer of tape insulation pad briquetting |
| CN112652441A (en) * | 2020-12-31 | 2021-04-13 | 河南铜牛变压器有限公司 | Maintenance-free high-efficiency energy-saving dry-type electric furnace transformer |
-
2013
- 2013-07-17 CN CN201320423884.2U patent/CN203377066U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105321671A (en) * | 2014-07-07 | 2016-02-10 | 郑州金源特变电气有限公司 | Novel efficient energy-saving open wound iron core dry type transformer |
| CN105895327A (en) * | 2014-12-18 | 2016-08-24 | 郑州远见安全装备股份有限公司 | High-efficiency and energy-saving mining explosion-proof mobile substation |
| CN105336479A (en) * | 2015-11-21 | 2016-02-17 | 河南铜牛变压器有限公司 | Maintenance-free three-phase efficient and energy-saving electric furnace dry type transformer |
| CN105575628A (en) * | 2016-01-27 | 2016-05-11 | 河南铜牛变压器有限公司 | Point-and-shoot maintenance-free energy-saving dry type transformer |
| CN107887118A (en) * | 2017-11-30 | 2018-04-06 | 浙江派尔电气有限公司 | A kind of dry-type transformer of tape insulation pad briquetting |
| CN112652441A (en) * | 2020-12-31 | 2021-04-13 | 河南铜牛变压器有限公司 | Maintenance-free high-efficiency energy-saving dry-type electric furnace transformer |
| CN112652441B (en) * | 2020-12-31 | 2023-11-28 | 河南铜牛变压器有限公司 | Maintenance-free high-efficiency energy-saving dry type electric furnace transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20140717 |
|
| EXPY | Termination of patent right or utility model |