CN203850107U - Low-loss distribution transformer - Google Patents
Low-loss distribution transformer Download PDFInfo
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- CN203850107U CN203850107U CN201420121048.3U CN201420121048U CN203850107U CN 203850107 U CN203850107 U CN 203850107U CN 201420121048 U CN201420121048 U CN 201420121048U CN 203850107 U CN203850107 U CN 203850107U
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- iron yoke
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Abstract
The utility model relates to a low-loss distribution transformer and mainly helps to solve problems that a conventional transformer is high in zero load loss, high in cost, etc. The low-loss distribution transformer comprises an iron core, a low-voltage winding, a high-voltage winding, an oil tank, a low-voltage side clamp member, transformer oil, a pressure relief valve, a low-voltage lead, low-voltage sleeve pipes, high-voltage sleeve pipes, a low-voltage side box cover, a high-voltage lead and a multifunctional oil level gauge. The iron core includes a core column and an iron yoke. The sectional area of the iron yoke is increased to be 1.3 to 1.6 times larger than the area of the core column, and the magnetic flux density of the iron yoke is 0.75 to 0.625 times lower than that of the iron column. The sectional area of the iron yoke is increased and the magnetic density of the iron yoke is reduced, therefore, the zero load loss is reduced, the sectional area of the core column keeps unchanged, and the total loss of the transformer is reduced.
Description
Technical field
The utility model relates to a kind of low-loss distribution transformer, belongs to power supply technical field.
Background technology
At present, both at home and abroad energy-saving and cost-reducing requirement is improved gradually, at transformer industry, the no-load loss of folded iron core type distribution transformer has dropped to S13 type by S11 type before, but compare with the no-load loss of amorphous alloy transformer, want high a lot, the no-load loss of folded iron core type distribution transformer needs further to reduce, to reach the object of energy-saving and emission-reduction.What fold the current main employing of iron core distribution transformer is to wait yoke structure, be that stem stem area equates with iron yoke area, magnetic flux density is identical, if want to reduce magnetic flux density, reduce loss, the sectional area of stem stem and iron yoke will be strengthened, and after sectional area increasing, load loss can be directly affected, so reduce zero load by strengthening the method for stem stem and iron yoke sectional area, will certainly significantly increase cost.
Utility model content
The utility model is large for the no-load loss of existing transformer, high in cost of production problem, provide a kind of reduction to fold iron core distribution transformer no-load loss, make it to reach the no-load loss level of amorphous alloy transformer, reduce as far as possible the low-loss distribution transformer of manufacturing cost simultaneously.
The purpose of this utility model is achieved through the following technical solutions:
Low-loss distribution transformer, it comprises iron core, low pressure winding, high pressure winding, fuel tank, low-pressure side folder, transformer oil, pressure relief valve, low-voltage lead, low-tension bushing, bushing, low-pressure side case lid, high-voltage connection and Multifunctional oil level gauge, iron core comprises again stem stem and iron yoke; By increasing the sectional area of iron yoke, the sectional area that makes iron yoke is 1.3-1.6 times of stem stem area, and the magnetic flux density of iron yoke is reduced to 0.75-0.625 times of stem stem magnetic flux density.
Above-mentioned high pressure winding is outside low pressure winding, high pressure winding and low pressure winding for close around, wind rear integral assembling to the stem stem of iron core, transformer body is processed and is placed in fuel tank through super-dry, the head and the tail of low pressure winding are connected to low-tension bushing by low-voltage lead, the head and the tail of high pressure winding are connected to bushing by high-voltage connection, and fuel tank both sides are provided with corrugated fin-type radiator.
The model of low-loss distribution transformer described in the utility model is S15-630/10, and capacity is 630KVA, electric pressure 10KV, and iron core adopts silicon steel sheet, and the sectional area of stem stem is 495.4cm
2, the sectional area of iron yoke is 704cm
2.
The case lid of low-pressure side described in the utility model adopts low magnetic steel plate, low pressure winding is by Copper Foil coiling, high-voltage connection is used Z-4.25 circular copper wire, low-voltage lead is copper bar, and bushing adopts transformer with there being supplementary insulation to wear cable formula sleeve pipe, and low-tension bushing adopts transformer composite ceramic insulating sleeve, transformer oil adopts 25# insulating oil, iron core adopts cold-reduced silicon sheet, and stem stem is Long Circle, and iron yoke is square.
The beneficial effects of the utility model are: the utility model is by increasing iron yoke sectional area, the magnetic that reduces iron yoke part is close, reduced no-load loss, when reducing no-load loss, the sectional area of stem stem is constant, the consumption of copper cash is reduced, so not only reduced no-load loss, do not increase again load loss, the total losses of transformer have been reduced, reached the object of low-loss energy-saving, and overcome amorphous alloy transformer core can not recycling, the shortcoming such as impedance voltage is unstable and noise is large.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of iron core of the present utility model.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail.
Referring to accompanying drawing 1-2, low-loss distribution transformer, it comprises iron core 1, low pressure winding 2, high pressure winding 3, fuel tank 4, low-pressure side folder 5, transformer oil 6, pressure relief valve 7, low-voltage lead 8, low-tension bushing 9, bushing 10, low-pressure side case lid 11, high-voltage connection 12 and Multifunctional oil level gauge 13, iron core 1 comprises again stem stem 14 and iron yoke 15; By increasing the sectional area of iron yoke 15, the sectional area that makes iron yoke 15 is 1.3-1.6 times of stem stem 14 areas, and the magnetic flux density of iron yoke 15 is reduced to 0.75-0.625 times of stem stem 14 magnetic flux densities.
Above-mentioned high pressure winding 3 is outside low pressure winding 2, high pressure winding 3 and low pressure winding 2 for close around, wind rear integral assembling to the stem stem 14 of iron core 1, transformer body is processed and is placed in fuel tank 4 through super-dry, the head and the tail of low pressure winding 2 are connected to low-tension bushing 9 by low-voltage lead 8, the head and the tail of high pressure winding 3 are connected to bushing 10 by high-voltage connection 12, and fuel tank 4 both sides are provided with corrugated fin-type radiator.
The model of low-loss distribution transformer described in the utility model is S15-630/10, and capacity is 630KVA, electric pressure 10KV, and iron core 1 adopts silicon steel sheet, and the sectional area of stem stem 14 is 495.4cm
2, the sectional area of iron yoke 15 is 704cm
2.
The case lid of low-pressure side described in the utility model 11 adopts low magnetic steel plate, low pressure winding 2 is by Copper Foil coiling, high-voltage connection 12 is used Z-4.25 circular copper wire, low-voltage lead 8 is copper bar, and bushing 10 adopts transformer with there being supplementary insulation to wear cable formula sleeve pipe, and low-tension bushing 9 adopts transformer composite ceramic insulating sleeve, transformer oil 6 adopts 25# insulating oil, iron core 1 adopts cold-reduced silicon sheet, and stem stem 14 is Long Circle, and iron yoke 15 is square.
Claims (4)
1. a low-loss distribution transformer, it comprises iron core, low pressure winding, high pressure winding, fuel tank, low-pressure side folder, transformer oil, pressure relief valve, low-voltage lead, low-tension bushing, bushing, low-pressure side case lid, high-voltage connection and Multifunctional oil level gauge, iron core comprises again stem stem and iron yoke; It is characterized in that: by increasing the sectional area of iron yoke, the sectional area that makes iron yoke is 1.3-1.6 times of stem stem area, and the magnetic flux density of iron yoke is reduced to 0.75-0.625 times of stem stem magnetic flux density.
2. a kind of low-loss distribution transformer as claimed in claim 1, it is characterized in that: above-mentioned high pressure winding is outside low pressure winding, high pressure winding and low pressure winding for close around, wind rear integral assembling to the stem stem of iron core, transformer body is processed and is placed in fuel tank through super-dry, the head and the tail of low pressure winding are connected to low-tension bushing by low-voltage lead, and the head and the tail of high pressure winding are connected to bushing by high-voltage connection, and fuel tank both sides are provided with corrugated fin-type radiator.
3. a kind of low-loss distribution transformer as claimed in claim 1, is characterized in that: transformer model is S15-630/10, and capacity is 630KVA, electric pressure 10KV, and iron core adopts silicon steel sheet, and the sectional area of stem stem is 495.4cm
2, the sectional area of iron yoke is 704cm
2.
4. a kind of low-loss distribution transformer as claimed in claim 1, it is characterized in that: described low-pressure side case lid adopts low magnetic steel plate, low pressure winding is by Copper Foil coiling, and high-voltage connection is used Z-4.25 circular copper wire, and low-voltage lead is copper bar, bushing adopts transformer with there being supplementary insulation to wear cable formula sleeve pipe, low-tension bushing adopts transformer composite ceramic insulating sleeve, and transformer oil adopts 25# insulating oil, and iron core adopts cold-reduced silicon sheet, stem stem is Long Circle, and iron yoke is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121048.3U CN203850107U (en) | 2014-03-17 | 2014-03-17 | Low-loss distribution transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121048.3U CN203850107U (en) | 2014-03-17 | 2014-03-17 | Low-loss distribution transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203850107U true CN203850107U (en) | 2014-09-24 |
Family
ID=51563092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420121048.3U Expired - Fee Related CN203850107U (en) | 2014-03-17 | 2014-03-17 | Low-loss distribution transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203850107U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097224A (en) * | 2015-08-21 | 2015-11-25 | 宁波奥克斯高科技有限公司 | Transformer iron core |
| CN108597779A (en) * | 2018-06-11 | 2018-09-28 | 芜湖超源力工业设计有限公司 | A kind of novel transformer |
| CN110060859A (en) * | 2019-05-21 | 2019-07-26 | 保定天威保变电气股份有限公司 | It is a kind of can Phase Sequence-changeable transformer device structure and design method |
-
2014
- 2014-03-17 CN CN201420121048.3U patent/CN203850107U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097224A (en) * | 2015-08-21 | 2015-11-25 | 宁波奥克斯高科技有限公司 | Transformer iron core |
| CN108597779A (en) * | 2018-06-11 | 2018-09-28 | 芜湖超源力工业设计有限公司 | A kind of novel transformer |
| CN108597779B (en) * | 2018-06-11 | 2021-03-16 | 芜湖超源力工业设计有限公司 | Transformer |
| CN110060859A (en) * | 2019-05-21 | 2019-07-26 | 保定天威保变电气股份有限公司 | It is a kind of can Phase Sequence-changeable transformer device structure and design method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CEEC HULUDAO ELECTRIC POWER EQUIPMENT CO., LTD. Free format text: FORMER NAME: CEEC HULUDAO ELECTRIC POWER EQUIPMENT FACTORY |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 125000 No. 88, Longgang Road, Longgang District, Liaoning, Huludao Patentee after: Power equipment Co., Ltd of Chinese energy construction group Huludao City Address before: 125000 No. 88, Longgang Road, Longgang District, Liaoning, Huludao Patentee before: Energy source in China construction group Huludao City power equipment factory |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20200317 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |