CN211294839U - Transformer device - Google Patents
Transformer device Download PDFInfo
- Publication number
- CN211294839U CN211294839U CN202020211982.XU CN202020211982U CN211294839U CN 211294839 U CN211294839 U CN 211294839U CN 202020211982 U CN202020211982 U CN 202020211982U CN 211294839 U CN211294839 U CN 211294839U
- Authority
- CN
- China
- Prior art keywords
- winding
- voltage regulating
- voltage
- regulating winding
- transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides a transformer, include: the voltage regulating device comprises a series winding, a voltage regulating winding and a common winding, wherein the first end of the voltage regulating winding is connected with the series winding, the second end of the voltage regulating winding is connected with the common winding, the voltage regulating winding is connected with a medium-voltage conductive lead, and a testing conductive lead is connected between the voltage regulating winding and the common winding, wherein the medium-voltage conductive lead and the testing conductive lead can be connected together to form a current loop with the voltage regulating winding. According to the utility model discloses a temperature rise that transformer can measure the voltage regulating winding alone to obtain the more accurate temperature rise test result to the voltage regulating winding.
Description
Technical Field
The utility model relates to a transformer technical field, in particular to transformer that can independent measure voltage regulation winding's temperature rise.
Background
The temperature rise test of the transformer is one of important test items for identifying the product quality in a type test by a manufacturer, and the purpose of the temperature rise test is to determine whether the temperature rise of various parts of the transformer meets the requirements specified by related standards, so that reliable basis is provided for the long-term safe operation of the transformer.
However, the voltage regulating winding of the existing transformer is connected with the main winding, so that the voltage regulating winding cannot be used as a single winding to measure the temperature rise, and can only be used for measuring together with the main winding to form an integral winding. This may not lead to exact test results for the regulating winding.
SUMMERY OF THE UTILITY MODEL
The utility model discloses lie in solving above-mentioned and/or other technical problem and providing a transformer, this transformer can measure the temperature rise of regulating winding alone to obtain the more accurate temperature rise test result to the regulating winding.
According to an aspect of the present invention, there is provided a transformer, including: series winding, voltage regulating winding and common winding, wherein, voltage regulating winding's first end with series winding connects, voltage regulating winding's second end with common winding connects, voltage regulating winding is connected with the electrically conductive lead wire of middling pressure, voltage regulating winding with be connected with the electrically conductive lead wire of test between the common winding, wherein, the electrically conductive lead wire of middling pressure with the electrically conductive lead wire of test can link together, with voltage regulating winding constitutes current loop.
Optionally, in an example of the above aspect, a three-way connection member is connected between the voltage regulating winding and the common winding, a first end and a second end of the three-way connection member are respectively connected to the common winding and the voltage regulating winding, and a third end of the three-way connection member is connected to the test conducting lead.
Optionally, in one example of the above aspect, the resistance of the regulating winding is measured by the current loop when the regulating winding is subjected to a temperature rise test.
Through the mode, the temperature rise of the voltage regulating winding can be measured independently, and therefore a more accurate temperature rise test result for the voltage regulating winding is obtained.
Optionally, in one example of the above aspect, the voltage regulating winding is connected to a tap changer having a plurality of tap joints.
Optionally, in one example of the above aspect, when the voltage regulating winding is subjected to a temperature rise test, the medium voltage conductive lead is connected to a tap joint of the plurality of tap joints through which a maximum current flows through the voltage regulating winding.
By means of such a measuring circuit, the maximum temperature rise of the regulating winding can be measured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a transformer according to an embodiment of the present invention.
In the drawings, 10: transformer, 102: series winding, 103: medium voltage conductive lead, 104: voltage regulating winding, 104-1: first end of regulating winding, 104-2: second end of the regulating winding, 105: test conductive leads, 106: common winding, 107: tee junction, 107-1: first end of three-way connection, 107-2: second end of three-way connection, 107-3: third end of the three-way connection, 108: tap changer, 4, 5, 6, 7, 8: tap fitting, 109: a low pressure part.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments, based on the embodiments in the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention.
As shown in fig. 1, according to an embodiment of the present invention, there is provided a transformer 10 including: a series winding 102, a regulator winding 104, and a common winding 106.
The transformer 10 shown in fig. 1 further includes a low voltage part 109, and in the present invention, the structure of the low voltage part of the transformer is not modified and thus will not be described in detail in this specification.
As shown in FIG. 1, a first end 104-1 of voltage regulation winding 104 is connected to series winding 102 and a second end 104-2 of voltage regulation winding 104 is connected to common winding 106. A medium voltage conductive lead 103 is connected to regulator winding 104, and a test conductive lead 105 is connected between regulator winding 104 and common winding 106. The medium voltage conductive lead 103 and the test conductive lead 105 may be connected together to form a current loop with the voltage regulating winding 104.
Specifically, a temporary bushing may be added to the end of the voltage regulation winding 104 near the common winding through which a test conductive lead 105 leads. The test lead 105 and the medium voltage lead 103 leading from the regulator winding 104 through the medium voltage bushing may form a single resistance measurement loop for the regulator winding 104. When the temperature rise test is performed on the voltage regulating winding 104, the resistance of the voltage regulating winding 104 can be measured through the resistance measurement circuit, so that the temperature rise of the voltage regulating winding 104 can be measured.
Through the mode, the temperature rise of the voltage regulating winding can be measured independently, and therefore a more accurate temperature rise test result for the voltage regulating winding is obtained.
In one embodiment of the present invention, a three-way connection member 107 is connected between the voltage regulating winding 104 and the common winding 106, a first end 107-1 and a second end 107-2 of the three-way connection member 107 are respectively connected to the common winding 106 and the voltage regulating winding 104, and a third end 107-3 of the three-way connection member 107 is connected to the testing conductive lead 105.
Preferably, the tap changer 108 is provided with a tap winding, and the tap changer 108 is provided with a plurality of tap connectors 4, 5, 6, 7, 8.
When the voltage regulating winding 104 is subjected to a temperature rise test, the medium-voltage conductive lead wire 103 is connected to one of the tap terminals that enables the maximum current to flow through the voltage regulating winding 104.
By means of such a measuring circuit, the maximum temperature rise of the regulating winding can be measured.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.
Finally, it is to be noted that: the above description is only the preferred embodiment of the present invention, which is only used to illustrate the technical solution of the present invention, and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention is included in the protection scope of the present invention.
Claims (5)
1. Transformer (10), characterized in that it comprises: a series winding (102), a voltage regulation winding (104) and a common winding (106),
wherein a first end (104-1) of the voltage regulating winding (104) is connected with the series winding (102), a second end (104-2) of the voltage regulating winding (104) is connected with the common winding (106), the voltage regulating winding (104) is connected with a medium voltage conductive lead (103), a test conductive lead (105) is connected between the voltage regulating winding (104) and the common winding (106),
the medium-voltage conducting lead (103) and the testing conducting lead (105) can be connected together, and form a current loop with the regulating winding (104).
2. The transformer (10) of claim 1, wherein a three-way connection (107) is connected between the voltage regulating winding (104) and the common winding (106), a first end (107-1) and a second end (107-2) of the three-way connection (107) are respectively connected with the common winding (106) and the voltage regulating winding (104), and a third end (107-3) of the three-way connection (107) is connected with the test conductive lead (105).
3. The transformer (10) of claim 1, wherein the resistance of the regulating winding (104) is measured by the current loop when the regulating winding (104) is temperature-ramped.
4. A transformer (10) according to any one of claims 1-3, characterized in that the regulating winding (104) has one tap changer (108), the tap changer (108) having a plurality of tap connections (4, 5, 6, 7, 8).
5. Transformer (10) according to claim 4, characterized in that the medium voltage conductive lead (103) is connected to a tap of the plurality of tap terminals (4, 5, 6, 7, 8) which enables a maximum current to flow through the voltage regulating winding (104) when the voltage regulating winding (104) is subjected to a temperature rise test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020211982.XU CN211294839U (en) | 2020-02-26 | 2020-02-26 | Transformer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020211982.XU CN211294839U (en) | 2020-02-26 | 2020-02-26 | Transformer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211294839U true CN211294839U (en) | 2020-08-18 |
Family
ID=72018061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020211982.XU Active CN211294839U (en) | 2020-02-26 | 2020-02-26 | Transformer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211294839U (en) |
-
2020
- 2020-02-26 CN CN202020211982.XU patent/CN211294839U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112858991B (en) | Uninterrupted verification system and method for low-voltage current transformer | |
| US11454678B2 (en) | Electrical plug and methods for testing an electrical mains socket and an electrical mains plug | |
| CN109073689A (en) | Chip impedance test method and system | |
| CN106997013A (en) | A kind of temperature rise experimental method of cable crimping point and crimping armor clamp | |
| CN211294839U (en) | Transformer device | |
| JPH08271565A (en) | Method for inspecting connecting state of power supply apparatus and power supply apparatus using method thereof | |
| CN111880009B (en) | Medium-voltage fuse melt resistance accurate measurement circuit and measurement method thereof | |
| CN205581246U (en) | Pencil detection loop | |
| CN111537797B (en) | System and method for measuring insulation resistance of transformer substation without disassembling lead | |
| CN113917371A (en) | Measuring box wiring detection tool | |
| CN204925370U (en) | Single, three -phase direct current return circuit resistance meter calibrating installation | |
| CN207925729U (en) | A kind of switching pull-plug device quickly accessing secondary terminals row | |
| CN208125876U (en) | A kind of triode Kelvin test suite | |
| CN201845072U (en) | Portable wide-range detection device for voltage-regulating value of voltage-regulator tube | |
| CN207148277U (en) | Optocoupler CTR test devices | |
| CN205642673U (en) | A temperature check gauge for main transformer | |
| CN108398459B (en) | Distribution oil variable winding material azimuth thermal resistance temperature curve identification method | |
| CN104865546A (en) | Single and three-phase DC loop resistance tester calibrating device | |
| JPS58113870A (en) | Testing method for cable | |
| CN216718574U (en) | Power regulator detection device | |
| CN216133161U (en) | Fool-proof system for test station | |
| CN211375012U (en) | Input current's test equipment and server | |
| CN203786239U (en) | Power supply line electrical on-off test device | |
| CN219496630U (en) | Multifunctional wire calibrating instrument for power plant | |
| CN216848067U (en) | Portable six-in-one spot inspection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |