CN203941791U - A kind of novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer - Google Patents
A kind of novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer Download PDFInfo
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- CN203941791U CN203941791U CN201420370223.2U CN201420370223U CN203941791U CN 203941791 U CN203941791 U CN 203941791U CN 201420370223 U CN201420370223 U CN 201420370223U CN 203941791 U CN203941791 U CN 203941791U
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Abstract
The utility model provides a kind of novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer, comprise fuel tank, be arranged on the iron core of fuel tank internal, and be arranged on iron core inside and outside low-voltage coil and high-tension coil, it is characterized in that: described iron core adopts three-phase five-limb structure, every group of iron core is made up of two large iron core frames and two little iron core frames that are positioned at two large iron core frame the right and lefts, each iron core frame is to be rolled and formed by two kinds of wide silicon steel sheets of sheet, making iron core transverse cross section is that two rectangles are to spelling structure, and the docking port of silicon steel sheet is all in the centre position of iron core frame bottom, described high-tension coil and low-voltage coil are set in three iron core column of three-phase five-limb iron core, and are arranged on above folder coil is played to the effect that compresses and support by nail pressing and cushion block.
Description
Technical field
The utility model relates to transformer equipment field, and particularly relating to a kind of core structure is the oil-filled transformer that open coil iron core, no-load loss and load loss are very low, and this type of oil-filled transformer is specially adapted to the user that energy-conservation and noise are had relatively high expectations.
Background technology
Known, the most of oil-filled transformer models on market are S9 or S11, and these oil-filled transformers in use no-load loss, no-load current and load loss are all very large, make user's operating cost higher, also cause the waste of State Grid's resource simultaneously.The conventional iron core of these oil-filled transformers is generally mitre EI type laminated type structure in addition, but because the iron core of stack moulding all exists many places mitre in junction, every layer of limit, thereby cause the increase of magnetic resistance and iron loss, the exciting current of transformer is also increased, reduce power factor, had a strong impact on the power supply quality of electrical network, the existence of iron core seam has also caused the problem that running noises is large.
Summary of the invention
In order to overcome the deficiency in background technology, the utility model discloses a kind of energy-efficient, low noise, high-quality novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer.
For achieving the above object, the utility model adopts following technical scheme:
A kind of novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer, comprise fuel tank, be arranged on the iron core of fuel tank internal, and be arranged on iron core inside and outside low-voltage coil and high-tension coil, described iron core adopts three-phase five-limb structure, every group of iron core is made up of two large iron core frames and two little iron core frames that are positioned at two large iron core frame the right and lefts, each iron core frame is to be rolled and formed by two kinds of wide silicon steel sheets of sheet, making iron core transverse cross section is two rectangles to spelling structure, and the docking port of silicon steel sheet is all in the centre position of iron core frame bottom; Described high-tension coil and low-voltage coil are set in three iron core column of three-phase five-limb iron core, and are arranged on above folder coil is played to the effect that compresses and support by nail pressing and cushion block.
Described high-tension coil and low-voltage coil are the rectangular configuration that the uniform seamed edge that is provided with several oil duct stays in upper and lower two ends is fillet.
Three leading-out terminals of described high-tension coil are by high pressure shorting stub with delta connection and high-voltage terminal sub-connection, and bushing support and connection are passed through on fuel tank top in described high-voltage connection terminal outer end.
Three leading-out terminals of described low-voltage coil are by low pressure shorting stub with star connection and low voltage terminal sub-connection, and low-tension bushing support and connection are passed through on fuel tank top in described low-voltage wiring terminal outer end.
Described iron core is fixed on fuel tank internal bottom surface by folder, and fuel tank top is provided with oil level indicator.
Described iron core adopts high magnetic conduction low-loss 23ZH75 type silicon steel sheet to be prepared from.
Described low-voltage coil and high-tension coil all adopt high-quality Copper Foil or copper wire winding.
Owing to having adopted technique scheme, the utlity model has following beneficial effect:
Novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer of the present utility model has following effect:
1, no-load loss is very low, and no-load current is smaller.Because the utility model novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer iron core adopts three-phase five-limb structure, every group of iron core is made up of two little iron core frames and two large iron core frames, each iron core frame is to be rolled and formed by two kinds of wide silicon steel sheets of sheet, and the docking port of silicon steel sheet is all in the centre of iron core frame bottom, the magnetic circuit of transformer is distributed symmetrically, magnetic hysteresis loss reduces, and iron core vibration amplitude reduces.Coordinate again upper this serial transformer to adopt high magnetic conduction low-loss 23ZH75 type silicon steel sheet, make no-load loss very low, than GB/T6451 standard null load-loss on average reduce by 50%, no-load current on average reduces by 60%.This novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer belongs to pioneering at home, in domestically leading status.
2, load loss is lower.Because novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer design coil of the present utility model adopts high-quality Copper Foil and copper wire winding, value current density is less, makes load loss on average reduce by 35% than GB/T6451 standard termination loss.
3, noise is low.Novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer series noise of the present utility model, than common S9 or the low 10～15dB of S11 series oil-filled transformer, can go deep into resident load central area.
4, the life-span is long.The novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer Series Design life-span of the present utility model is greater than 40 years.
5, energy-efficient, operating cost is low.The advantage of novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer series of the present utility model aspect no-load loss and load loss is especially outstanding, so the in the situation that of normal load running, operating cost reduces greatly.
Brief description of the drawings
Fig. 1 is device body figure of the present utility model;
Fig. 2 is A-A sectional view in Fig. 1;
Fig. 3 is core structure figure of the present utility model;
Fig. 4 is outline drawing of the present utility model;
In figure: 1 high-tension coil, 2 low-voltage coils, 3 iron cores, 4 folders, 5 nail pressings, 6 cushion blocks, 7 bushings, 8 low-tension bushings, 9 oil level indicators, 10 fuel tanks, 11 transformer oil, 12 oil duct stays.
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 within the scope of the utility model;
As Figure 1-4, novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer of the present utility model, comprise fuel tank 10, be arranged on the iron core 3 of fuel tank 10 inside, and be arranged on iron core inside and outside low-voltage coil 2 and high-tension coil 1, described iron core 3 adopts three-phase five-limb structure, every group of iron core is made up of two large iron core frames and two little iron core frames that are positioned at two large iron core frame the right and lefts, each iron core frame is to be rolled and formed by two kinds of wide silicon steel sheets of sheet, making iron core transverse cross section is that two rectangles are to spelling structure, and the docking port of silicon steel sheet is all in the centre position of iron core frame bottom, described high-tension coil 1 and low-voltage coil 2 are set in three iron core column of three-phase five-limb iron core, and are arranged on above folder coil is played to the effect that compresses and support by nail pressing and cushion block.
The rectangular configuration that described high-tension coil 1 and low-voltage coil 2 are fillet for the uniform seamed edge that is provided with several oil duct stays 12 in upper and lower two ends.
Three leading-out terminals of described high-tension coil 1 are by high pressure shorting stub with delta connection and high-voltage terminal sub-connection, and bushing 7 support and connection are passed through on fuel tank top in described high-voltage connection terminal outer end.
Three leading-out terminals of described low-voltage coil are by low pressure shorting stub with star connection and low voltage terminal sub-connection, and low-tension bushing 8 support and connection are passed through on fuel tank top in described low-voltage wiring terminal outer end.
Described iron core is fixed on fuel tank internal bottom surface by folder, and fuel tank top is provided with oil level indicator 9.
Described iron core 3 adopts high magnetic conduction low-loss 23ZH75 type silicon steel sheet to be prepared from.
Described low-voltage coil 2 and high-tension coil 1 all adopt high-quality Copper Foil or copper wire winding.
In particular: by reference to the accompanying drawings described in 1,2 and 3, novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer iron core of the present utility model adopts three-phase five-limb structure, every group of iron core is made up of two little iron core frames and two large iron core frames, each iron core frame is to be rolled and formed by two kinds of wide silicon steel sheets of sheet, and the docking port of silicon steel sheet is all in the centre of iron core frame bottom, the magnetic circuit of transformer is distributed symmetrically, and magnetic hysteresis loss reduces.Coordinate upper this serial transformer to adopt the high magnetic conduction low-loss of high-quality cold-rolled orientation 23ZH75 type silicon steel sheet, design magnetic flux density is low again, and specific loss is low, and B800 value is high, makes no-load loss very low.
By reference to the accompanying drawings 1, the iron core 3 of transformer is to have folder 4 fixing, and high-tension coil 1 and low-voltage coil 2 are arranged on folder 4 by nail pressing 5 and cushion block 6 and coil are played to the effect that compresses and support above, transformer coil and iron core are integrated, greatly reduce the amplitude shaking between lamination, thereby made the reducing noise Amplitude Ratio of transformer larger.
Described in 2, novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer of the present utility model strengthens the sectional area of high-tension coil 1 and low-voltage coil 2 wires, thereby has reduced load loss by reference to the accompanying drawings.The wire of coiling changes present low pressure 280mm2 and high pressure 5.3mm2 into by original area low pressure 175mm2 and high pressure 3.5mm2.
By reference to the accompanying drawings described in 1,2,3 and 4, transformer coil of the present utility model has adopted low-temperature-rise in the time of design, be generally lower than 15K, add the temperature rise of Design of Transformer oil top layer lower than 45K, thus the life-span that makes transformer from be generally within 20～30 years, bring up to present more than 40 years.Main method is: (1) strengthens the area of wire, reduces load loss: the wire of coiling is by original area low pressure 175mm
2with high pressure 3.5mm
2change present low pressure 280mm into
2with high pressure 5.3mm
2; (2) expand area of dissipation: the area of dissipation of coil is by original 2.6m
2change present 3.8m into
2; (3) adopt high-quality silicon steel sheet, reduce no-load loss: iron core 3 adopts the high magnetic conduction low-loss of high-quality cold-rolled orientation silicon steel sheet 23ZH75, design magnetic flux density is low, and specific loss is low, and B800 value is high, has reduced no-load loss; (4) add the corrugated plate efficiently radiates heat area of large tank 10, make oily top layer temperature rise lower than 45K, even if transformer is (if ambient temperature is 40 DEG C) under worst operational environment, when transformer oepration at full load, working temperature is also no more than 80 DEG C.
The high-tension coil 1 of oil-filled transformer as shown in Figure 1, 2 and low-voltage coil 2 are sleeved on three newels of three-phase five-limb iron core 3, and are arranged on by nail pressing 5 and cushion block 6 effect that folder 4 plays compression and supports coil above.This structure has improved the anti-short circuit capability of product, has reduced noise.
Because novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer core structure of the present utility model is the feature that open coil iron core, no-load loss and load loss are very low, can make user's operating cost obtain significantly reducing, and save electric energy, having realized low noise, energy-efficient, is the ideal product that on future market, oil-filled transformer updates.
The utility model does not describe part in detail for prior art.
Claims (7)
1. a novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer, comprise fuel tank, be arranged on the iron core of fuel tank internal, and be arranged on iron core inside and outside low-voltage coil and high-tension coil, it is characterized in that: described iron core adopts three-phase five-limb structure, every group of iron core is made up of two large iron core frames and two little iron core frames that are positioned at two large iron core frame the right and lefts, each iron core frame is to be rolled and formed by two kinds of wide silicon steel sheets of sheet, making iron core transverse cross section is two rectangles to spelling structure, and the docking port of silicon steel sheet is all in the centre position of iron core frame bottom; Described high-tension coil and low-voltage coil are set in three iron core column of three-phase five-limb iron core, and are arranged on above folder coil is played to the effect that compresses and support by nail pressing and cushion block.
2. novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer according to claim 1, is characterized in that: described high-tension coil and low-voltage coil are the rectangular configuration that the uniform seamed edge that is provided with several oil duct stays in upper and lower two ends is fillet.
3. novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer according to claim 1, it is characterized in that: three leading-out terminals of described high-tension coil are by high pressure shorting stub with delta connection and high-voltage terminal sub-connection, and bushing support and connection are passed through on fuel tank top in described high-voltage connection terminal outer end.
4. novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer according to claim 1, it is characterized in that: three leading-out terminals of described low-voltage coil are by low pressure shorting stub with star connection and low voltage terminal sub-connection, and low-tension bushing support and connection are passed through on fuel tank top in described low-voltage wiring terminal outer end.
5. novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer according to claim 1, it is characterized in that: described iron core is fixed on fuel tank internal bottom surface by folder, and fuel tank top is provided with oil level indicator.
6. novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer according to claim 1, is characterized in that: described iron core adopts high magnetic conduction low-loss 23ZH75 type silicon steel sheet to be prepared from.
7. novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer according to claim 1, is characterized in that: described low-voltage coil and high-tension coil all adopt high-quality Copper Foil or copper wire winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420370223.2U CN203941791U (en) | 2014-07-07 | 2014-07-07 | A kind of novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420370223.2U CN203941791U (en) | 2014-07-07 | 2014-07-07 | A kind of novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203941791U true CN203941791U (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420370223.2U Expired - Fee Related CN203941791U (en) | 2014-07-07 | 2014-07-07 | A kind of novel high-efficiency and energy-saving hatch coiled iron core oil-immersed type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203941791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105280357A (en) * | 2014-07-07 | 2016-01-27 | 郑州金源特变电气有限公司 | Novel efficient and energy-saving opening roll-core oil-immersed transformer |
-
2014
- 2014-07-07 CN CN201420370223.2U patent/CN203941791U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105280357A (en) * | 2014-07-07 | 2016-01-27 | 郑州金源特变电气有限公司 | Novel efficient and energy-saving opening roll-core oil-immersed 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: 20141112 Termination date: 20180707 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |