CN109346271B - Step-up transformer - Google Patents
Step-up transformer Download PDFInfo
- Publication number
- CN109346271B CN109346271B CN201811352856.XA CN201811352856A CN109346271B CN 109346271 B CN109346271 B CN 109346271B CN 201811352856 A CN201811352856 A CN 201811352856A CN 109346271 B CN109346271 B CN 109346271B
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- voltage
- voltage coil
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- sleeve
- coil
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- 238000004804 winding Methods 0.000 claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical group [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/04—Fixed transformers not covered by group H01F19/00 having two or more secondary windings, each supplying a separate load, e.g. for radio set power supplies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The invention relates to the technical field of transformers, and particularly discloses a step-up transformer which comprises a body shell, a single-phase double-column iron core, a low-voltage coil, a first high-voltage coil and a second high-voltage coil, wherein the single-phase double-column iron core is arranged in the body shell, the low-voltage coil is wound on the outer side of the single-phase double-column iron core, the first high-voltage coil and the second high-voltage coil are arranged on the low-voltage coil in parallel, the starting ends of the first high-voltage coil and the second high-voltage coil are led out together, the winding directions of the first high-voltage coil and the second high-voltage coil are opposite, and a first sleeve and a second sleeve are respectively arranged above the body shell. The step-up transformer has compact structure and reasonable arrangement, is commonly used for supplying power to a direct current breaker, adopts a low-voltage winding and two high-voltage windings with opposite winding directions to be arranged on a single-phase double-column iron core, enables the transformer to be excited by the low-voltage winding, and simultaneously realizes the function of outputting two high voltages with 180 DEG phase difference from the two high-voltage windings.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a step-up transformer.
Background
A transformer is a common electrical device that can be used to transform an alternating voltage of one value into an alternating voltage of another value at the same frequency. A step-up transformer is a transformer for converting a low value alternating voltage to another higher value alternating voltage of the same frequency.
At present, when the step-up transformer in the prior art needs to output two alternating voltages, a four-column type iron core is often adopted for winding a high-voltage winding, so that the manufacturing cost is high, the whole size is large, and the transportation and the installation are inconvenient, so that a great improvement space is provided in the design of the step-up transformer.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a step-up transformer which has compact structure and reasonable arrangement, and two high-voltage coils are arranged on one iron core to output two opposite alternating voltages for a direct current breaker.
In order to solve the technical problems, the invention provides a step-up transformer, which comprises a body shell, a single-phase double-column iron core, a low-voltage coil, a first high-voltage coil and a second high-voltage coil, wherein the single-phase double-column iron core is arranged in the body shell, the low-voltage coil is wound on the outer side of the single-phase double-column iron core, the first high-voltage coil and the second high-voltage coil are arranged on the low-voltage coil in parallel, the starting ends of the first high-voltage coil and the second high-voltage coil are led out together, and the winding directions of the first high-voltage coil and the second high-voltage coil are opposite; a first sleeve and a second sleeve are respectively arranged above the body shell, the first sleeve is arranged on the outer side of the first high-voltage coil, a first high-voltage wire terminal is arranged at the top end of the first sleeve, and the tail end of the first high-voltage coil is connected to the first high-voltage wire terminal; the second sleeve is arranged on the outer side of the second high-voltage coil, a second high-voltage terminal is arranged on the outer side of the second sleeve, and the tail end of the second high-voltage coil is connected to the second high-voltage terminal.
Further, the first sleeve and the second sleeve are internally provided with a primary lead pipe, one end of the primary lead pipe in the first sleeve is fixed on the first high-voltage wire terminal, the other end of the primary lead pipe extends into the body shell, and the tail end of the first high-voltage coil enters the first high-voltage wire terminal from the primary lead pipe; one end of the primary lead tube in the second sleeve is fixed at the second high-voltage terminal, the other end of the primary lead tube extends into the body shell, and the tail end of the second high-voltage coil enters the second high-voltage terminal from the primary lead tube.
Further, the low voltage coil includes a first low voltage coil wound inside the first high voltage coil and a second low voltage coil wound inside the second high voltage coil.
Further, shielding electrodes are respectively arranged on the inner sides of the bottoms of the first sleeve and the second sleeve.
Specifically, the outside of ware body shell is equipped with low pressure terminal box, be equipped with low pressure terminal in the low pressure terminal box, low pressure terminal with low pressure coil is connected.
Further, an inflation valve is further arranged on the outer side of the body shell, and a density meter is arranged on the inflation valve.
Further, the step-up transformer further comprises a pressure release device, and the pressure release device is arranged below the outer side inflation valve of the body shell.
The beneficial effects of the invention are as follows: the step-up transformer has compact structure, reasonable arrangement, small whole volume, low manufacturing cost and convenient transportation and installation, adopts the low-voltage winding and the two high-voltage windings with opposite winding directions to be arranged on the single-phase double-column iron core, so that the transformer is excited by the low-voltage winding, simultaneously realizes the function of outputting two high voltages with 180 DEG phase difference from the two high-voltage windings, and can be well applied to a direct-current circuit breaker.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a step-up transformer of the present invention;
FIG. 2 is a waveform diagram of the voltage output of the step-up transformer of the present invention;
fig. 3 is a schematic diagram of the wiring of the high voltage coil portion of the booster of the present invention.
In the figure: the device comprises a 1-body shell, a 2-single-phase double-pole iron core, a 3-low voltage coil, a 4-first high voltage coil, a 5-first sleeve, a 6-first high voltage terminal, a 7-second high voltage coil, an 8-second sleeve, a 9-second high voltage terminal, a 10-first high voltage coil tail end, a 11-second high voltage coil tail end, a 12-primary lead tube, a 13-shielding electrode, a 14-low voltage terminal box, a 15-charging valve, a 16-density meter, a 17-pressure release device, an A-first high voltage coil output voltage waveform, a B-second high voltage coil output voltage waveform and a C-input voltage waveform.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In a specific embodiment of the invention, as shown in fig. 1 to 3, the invention specifically discloses a step-up transformer, which comprises a body shell 1, a single-phase double-pole iron core 2, a low-voltage coil 3, a first high-voltage coil 4 and a second high-voltage coil 7, wherein the single-phase double-pole iron core 2 is arranged in the body shell 1, the low-voltage coil 3 is wound on the outer side of the single-phase double-pole iron core 2, the first high-voltage coil 4 and the second high-voltage coil 7 are arranged on the low-voltage coil 3 in parallel, the starting ends of the first high-voltage coil 4 and the second high-voltage coil 7 are led out together, after the same high-voltage wire is led out, two wires are led out for respectively winding the first high-voltage coil and the second high-voltage coil, and the coils of the first high-voltage coil 4 and the second high-voltage coil 7 are wound in opposite directions; a first sleeve 5 and a second sleeve 8 are respectively arranged above the body shell, the first sleeve 5 is arranged above the outer side of the first high-voltage coil 4, a first high-voltage wire terminal 6 is arranged at the top end of the first sleeve 5, and the tail end 10 of the first high-voltage coil is connected to the first high-voltage wire terminal 6; the second sleeve 8 is arranged on the outer side of the second high-voltage coil 7, a second high-voltage terminal 9 is arranged on the outer side of the second sleeve 8, the tail end 11 of the second high-voltage coil is connected to the second high-voltage terminal 9, two first high-voltage coils and second high-voltage coils which are opposite in winding direction output two high voltages with 180-degree phase difference, and a voltage waveform diagram is shown in fig. 2.
A primary lead tube 12 is arranged in each of the first sleeve 5 and the second sleeve 8, the primary lead tube 12 is an aluminum tube, one end of the primary lead tube 12 in the first sleeve 5 is fixed at the first high-voltage terminal 6, the other end of the primary lead tube extends into the body shell 1, and the tail end 10 of the first high-voltage coil enters the first high-voltage terminal 6 from the primary lead tube 12; one end of a primary lead tube 12 in the second sleeve 8 is fixed on the second high-voltage terminal 9, the other end of the primary lead tube extends into the body shell 1, and the second high-voltage coil tail end 11 enters the second high-voltage terminal 9 from the primary lead tube 12.
The first sleeve 5 and the second sleeve 8 are both silicon rubber sleeves, shielding electrodes 13 are respectively arranged on the inner sides of the bottoms of the first sleeve 5 and the second sleeve 8, and the shielding electrodes 13 improve the distribution of internal and external electric fields and improve the insulativity and the reliability of equipment.
The low-voltage terminal box 14 is arranged on the outer side of the body shell 1, a low-voltage terminal is arranged in the low-voltage terminal box 14, and the low-voltage terminal is connected with the low-voltage coil 3.
The device is characterized in that an inflation valve 15 is further arranged on the outer side of the device body shell 1, a density meter 16 is arranged on the inflation valve 15, the inflation valve 15 is used for inflating gas into the device body shell, so that gas insulation is performed, the insulativity and the stability of the device body are improved, the density meter is used for detecting the gas leakage condition in the device body shell, and safety accidents are avoided.
The step-up transformer further comprises a pressure release device 17, the pressure release device 17 is arranged below the outer side inflation valve of the body shell, the pressure release device 17 is used for releasing pressure in the body, internal damage caused by overlarge pressure is avoided, and the service life of the step-up transformer is prolonged.
In another embodiment of the present invention, the low voltage coil 3 may further include a first low voltage coil and a second low voltage coil, where the first low voltage coil is disposed inside the first high voltage coil 4, and the second low voltage coil is disposed inside the second high voltage coil 7.
The beneficial effects of the invention are as follows: the step-up transformer has compact structure, reasonable arrangement, small whole volume, low manufacturing cost and convenient transportation and installation, adopts the low-voltage winding and the two high-voltage windings with opposite winding directions to be arranged on the single-phase double-column iron core, so that the transformer is excited by the low-voltage winding, simultaneously realizes the function of outputting two high voltages with 180 DEG phase difference from the two high-voltage windings, and can be well applied to a direct-current circuit breaker.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (5)
1. The booster transformer is characterized by comprising a body shell, a single-phase double-column iron core, a low-voltage coil, a first high-voltage coil and a second high-voltage coil, wherein the single-phase double-column iron core is arranged in the body shell, the low-voltage coil is wound on the outer side of the single-phase double-column iron core, the first high-voltage coil and the second high-voltage coil are arranged on the low-voltage coil in parallel, the initial ends of the first high-voltage coil and the second high-voltage coil are led out together, and the winding directions of the first high-voltage coil and the second high-voltage coil are opposite; a first sleeve and a second sleeve are respectively arranged above the body shell, the first sleeve is arranged on the outer side of the first high-voltage coil, a first high-voltage wire terminal is arranged at the top end of the first sleeve, and the tail end of the first high-voltage coil is connected to the first high-voltage wire terminal; the second sleeve is arranged at the outer side of the second high-voltage coil, a second high-voltage wire end is arranged at the outer side of the second sleeve, and the tail end of the second high-voltage coil is connected to the second high-voltage wire end;
the first sleeve and the second sleeve are internally provided with a primary lead pipe, one end of the primary lead pipe in the first sleeve is fixed on the first high-voltage wire terminal, the other end of the primary lead pipe extends into the body shell, and the tail end of the first high-voltage coil enters the first high-voltage wire terminal from the primary lead pipe; one end of the primary lead tube in the second sleeve is fixed at the second high-voltage terminal, the other end of the primary lead tube extends into the body shell, and the tail end of the second high-voltage coil enters the second high-voltage terminal from the primary lead tube;
the low-voltage coil comprises a first low-voltage coil and a second low-voltage coil, the first low-voltage coil is wound on the inner side of the first high-voltage coil, and the second low-voltage coil is wound on the inner side of the second high-voltage coil.
2. A step-up transformer according to claim 1, wherein the inner sides of the bottoms of the first and second bushings are provided with shielding electrodes, respectively.
3. A step-up transformer according to claim 1, wherein a low-voltage junction box is provided on the outside of the body case, a low-voltage junction is provided in the low-voltage junction box, and the low-voltage junction is connected to the low-voltage coil.
4. The step-up transformer according to claim 2, wherein an air charging valve is further arranged on the outer side of the body shell, and a density meter is arranged on the air charging valve.
5. A step-up transformer according to claim 3, further comprising a pressure relief device disposed below the outer inflation valve of the hull enclosure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811352856.XA CN109346271B (en) | 2018-11-14 | 2018-11-14 | Step-up transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811352856.XA CN109346271B (en) | 2018-11-14 | 2018-11-14 | Step-up transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109346271A CN109346271A (en) | 2019-02-15 |
| CN109346271B true CN109346271B (en) | 2024-02-23 |
Family
ID=65315224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811352856.XA Active CN109346271B (en) | 2018-11-14 | 2018-11-14 | Step-up transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109346271B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021077431A1 (en) * | 2019-10-26 | 2021-04-29 | 江苏思源赫兹互感器有限公司 | Boosting transformer |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200416467Y1 (en) * | 2006-03-02 | 2006-05-15 | 부전전자부품 주식회사 | 2-in-1 transformer having auxiliary-coil winding area |
| JP4523076B1 (en) * | 2009-02-13 | 2010-08-11 | 三菱電機株式会社 | Transformer |
| EP2549495A1 (en) * | 2011-07-18 | 2013-01-23 | ABB Technology AG | Dry type transformer |
| CN103515072A (en) * | 2013-10-28 | 2014-01-15 | 三变科技股份有限公司 | Dual-high-voltage on-load tap changing single-phase testing transformer |
| CN204010978U (en) * | 2014-08-29 | 2014-12-10 | 江苏南瑞帕威尔电气有限公司 | Single-phase axial quadripartion amorphous alloy dry-type isolating transformer |
| CN207319890U (en) * | 2017-07-04 | 2018-05-04 | 特变电工沈阳变压器集团有限公司 | A kind of Vv Connection Traction Transformers of three column machine body structure of two-phase |
| CN207503797U (en) * | 2017-12-09 | 2018-06-15 | 山东希波电气科技股份有限公司 | Two-tap intermediate frequency exciting test transformer |
| CN208834849U (en) * | 2018-11-14 | 2019-05-07 | 江苏思源赫兹互感器有限公司 | A kind of step-up transformer |
-
2018
- 2018-11-14 CN CN201811352856.XA patent/CN109346271B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200416467Y1 (en) * | 2006-03-02 | 2006-05-15 | 부전전자부품 주식회사 | 2-in-1 transformer having auxiliary-coil winding area |
| JP4523076B1 (en) * | 2009-02-13 | 2010-08-11 | 三菱電機株式会社 | Transformer |
| EP2549495A1 (en) * | 2011-07-18 | 2013-01-23 | ABB Technology AG | Dry type transformer |
| CN103515072A (en) * | 2013-10-28 | 2014-01-15 | 三变科技股份有限公司 | Dual-high-voltage on-load tap changing single-phase testing transformer |
| CN204010978U (en) * | 2014-08-29 | 2014-12-10 | 江苏南瑞帕威尔电气有限公司 | Single-phase axial quadripartion amorphous alloy dry-type isolating transformer |
| CN207319890U (en) * | 2017-07-04 | 2018-05-04 | 特变电工沈阳变压器集团有限公司 | A kind of Vv Connection Traction Transformers of three column machine body structure of two-phase |
| CN207503797U (en) * | 2017-12-09 | 2018-06-15 | 山东希波电气科技股份有限公司 | Two-tap intermediate frequency exciting test transformer |
| CN208834849U (en) * | 2018-11-14 | 2019-05-07 | 江苏思源赫兹互感器有限公司 | A kind of step-up transformer |
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| Publication number | Publication date |
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| CN109346271A (en) | 2019-02-15 |
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