CN203607230U - Voltage and capacitance-regulating distribution transformer - Google Patents
Voltage and capacitance-regulating distribution transformer Download PDFInfo
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- CN203607230U CN203607230U CN201320544823.1U CN201320544823U CN203607230U CN 203607230 U CN203607230 U CN 203607230U CN 201320544823 U CN201320544823 U CN 201320544823U CN 203607230 U CN203607230 U CN 203607230U
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- regulating
- transformer
- voltage
- distribution transformer
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Abstract
The utility model discloses a voltage and capacitance-regulating distribution transformer. The voltage and capacitance-regulating distribution transformer comprises a transformer body, a capacitance-regulating tap switch, a high-voltage sleeve pipe and a low-voltage sleeve pipe. The high-voltage sleeve pipe is connected with high-voltage windings. The low-voltage sleeve pipe is connected with low-voltage windings. The capacitance-regulating tap switch is connected with a transformer Yyn0 connection circuit and a transformer Dyn11 connection circuit. The voltage and capacitance-regulating distribution transformer has following beneficial effects as compared with a conventional voltage and capacitance-regulating distribution transformer: by utilizing the tapping function of the capacitance-regulating tap switch, one-time voltage-regulation is carried out in absence of excitation and conversion of the high-voltage windings between delta connection and star connection is achieved according to a service condition; volume of capacity is changed; and the safe and energy-saving requirement is completely satisfied.
Description
Technical field
The utility model relates to power transformer field, exactly refers to a kind of pressure regulating and capacitance regulating distribution transformer.
Background technology
Along with the quickening of China's rural urbanization paces, transformer station constantly moves toward load center, a large amount of distribution substations are built down town in, thereby the requirement of the fail safe of user to power quality and electric power is higher, accordingly distribution transformer is had higher requirement.
At present, the structure of known common distribution transformer is by an iron core, winding, fuel tank, device body and assembles without field switch; Common distribution transformer is all long-time running under fixed capacity, can without under excited state according to system voltage regulate primary voltage, but, transformer cannot regulate amount of capacity under heavy duty, overload and light load condition, cannot convert a winding connects, in situation, do not meet like this energy-conservation of consumption reduction policy that country advocates, waste resource yet.
Utility model content
For above-mentioned defect, the technical problem that the utility model solves is to provide a kind of pressure regulating and capacitance regulating distribution transformer, can utilize point connection function of capacity transfer shunting switch, except without regulating primary voltage under excited state, can also high pressure winding be converted between corner connection connection and star connection according to service condition, change amount of capacity, meet the demand of safety, power saving completely.
In order to solve above technical problem, the pressure regulating and capacitance regulating distribution transformer that the utility model provides, comprise transformer body, capacity transfer shunting switch, bushing and low-tension bushing, described bushing connects high pressure winding, described low-tension bushing connects low pressure winding, and described capacity transfer shunting switch can tapping transformer Yyn0 connection circuit or transformer Dyn11 connection circuit.
Preferably, described low pressure winding has series and parallel connections structure.
Preferably, the coil of described high pressure winding has adopted the high-intensity transposed conductor of tack.
Preferably, in the coil of the high pressure winding in described transformer body, be placed with 3-5 oil stream guide plate and form Z-shaped oil channel structures.
Preferably, in the coil of the low pressure winding in described transformer body, be placed with 3-5 oil stream guide plate and form Z-shaped oil channel structures.
Preferably, the coil of the high pressure winding in described transformer body adopts cardboard cylinder to support, and the outside of described cardboard cylinder is provided with outer stay.
Preferably, the coil of the low pressure winding in described transformer body adopts cardboard cylinder to support, and the outside of described cardboard cylinder is provided with outer stay.
Preferably, in described cardboard cylinder, there is auxiliary stay in outside in the distance increase at a distance of 60-70mm.
The pressure regulating and capacitance regulating distribution transformer that the utility model provides, comprise transformer body, capacity transfer shunting switch, bushing and low-tension bushing, described bushing connects high pressure winding, described low-tension bushing connects low pressure winding, and described capacity transfer shunting switch is tapping transformer Yyn0 connection circuit or transformer Dyn11 connection circuit as required.Compared with prior art, the pressure regulating and capacitance regulating distribution transformer that the utility model provides, can utilize point connection function of capacity transfer shunting switch, except without regulating primary voltage under excited state, can also high pressure winding be converted between corner connection connection and star connection according to service condition, change amount of capacity, meet the demand of safety, power saving completely.
Accompanying drawing explanation
Fig. 1 is the structural representation of pressure regulating and capacitance regulating distribution transformer in the utility model embodiment;
Fig. 2 is the inner section structural representation of transformer body in the utility model embodiment.
Embodiment
For those skilled in the art can understand technical scheme provided by the utility model better, set forth below in conjunction with specific embodiment.
Refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of pressure regulating and capacitance regulating distribution transformer in the utility model embodiment; Fig. 2 is the inner section structural representation of transformer body in the utility model embodiment.
The pressure regulating and capacitance regulating distribution transformer that the utility model embodiment provides, comprise transformer body 1, capacity transfer shunting switch 2, mercurial thermometer 5, oil surface temperature meter 6, Buchholz relay 7, bushing 3 and low-tension bushing 4, bushing 3 connects high pressure winding, low-tension bushing 4 connects low pressure winding, capacity transfer shunting switch 2 is tapping transformer Yyn0 connection circuit or transformer Dyn11 connection circuit as required, and low pressure winding has series and parallel connections structure.
The pressure regulating and capacitance regulating distribution transformer that the utility model embodiment provides is in running, when in the larger situation of electrical network power consumption, utilize capacity transfer shunting switch 2 is Dyn11 connection circuit by transformer Yyn0 connection circuit conversion under powering-off state, suppress high-order harmonic generation, make transformer safer long-time running under rated capacity; When electrical network power consumption is during in underload, under powering-off state, be Yyn0 connection circuit by this transformer from Dyn11 connection circuit conversion with capacity transfer shunting switch 2, low pressure winding is done connection in series-parallel conversion simultaneously, and transformer is adjusted into suitable capacity (underload) operation from rated capacity.When this transformer is under blower ventilation state, can exceed nameplate rated capacity (being air-cooled capacity) long-time running.
The coil of high pressure winding 8 has adopted the high-intensity transposed conductor of tack, makes coil winding construction compacter, effectively reduces supplementary load loss and the eddy current loss of coil; The mechanical strength and the coiling quality that have improved coil have increased the mechanical stability of transformer in the time of short circuit simultaneously.
In the coil of the high pressure winding 8 in transformer body 1, be placed with 3-5 oil stream guide plate and form Z-shaped oil channel structures, the oil flow of the horizontal oil duct of intensifier coil, reduce the temperature gradient because laterally oil duct oil stream dead band produces, improve the heat load ability of coil, effectively control temperature rise, guarantee the useful life of transformer.
In the coil of the low pressure winding in transformer body 1, be placed with 3-5 oil stream guide plate and form Z-shaped oil channel structures, the oil flow of the horizontal oil duct of intensifier coil, reduce the temperature gradient because laterally oil duct oil stream dead band produces, improve the heat load ability of coil, effectively control temperature rise, guarantee the useful life of transformer.
The coil of the high pressure winding 8 in transformer body 1 adopts cardboard cylinder to support, and the outside of cardboard cylinder is provided with outer stay, and in cardboard cylinder, there is auxiliary stay 9 in outside in the distance increase at a distance of 60-70mm, reduces the deformation of the stressed generation of its coil.The coil of the low pressure winding in transformer body 1 adopts cardboard cylinder to support, and the outside of cardboard cylinder is provided with outer stay, and in cardboard cylinder, there is auxiliary stay 9 in outside in the distance increase at a distance of 60-70mm, reduces the deformation of the stressed generation of its coil.
Compared with prior art, the pressure regulating and capacitance regulating distribution transformer that the utility model provides, can utilize point connection function of capacity transfer shunting switch, except without regulating primary voltage under excited state, can also high pressure winding be converted between corner connection connection and star connection according to service condition, change amount of capacity, meet the demand of safety, power saving completely.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple modification of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. a pressure regulating and capacitance regulating distribution transformer, comprise transformer body, capacity transfer shunting switch, bushing and low-tension bushing, described bushing connects high pressure winding, described low-tension bushing connects low pressure winding, it is characterized in that, described capacity transfer shunting switch can tapping transformer Yyn0 connection circuit or transformer Dyn11 connection circuit.
2. pressure regulating and capacitance regulating distribution transformer according to claim 1, is characterized in that, described low pressure winding has series and parallel connections structure.
3. pressure regulating and capacitance regulating distribution transformer according to claim 1, is characterized in that, the coil of described high pressure winding has adopted the high-intensity transposed conductor of tack.
4. pressure regulating and capacitance regulating distribution transformer according to claim 1, is characterized in that, is placed with 3-5 oil stream guide plate and forms Z-shaped oil channel structures in the coil of the high pressure winding in described transformer body.
5. pressure regulating and capacitance regulating distribution transformer according to claim 1, is characterized in that, is placed with 3-5 oil stream guide plate and forms Z-shaped oil channel structures in the coil of the low pressure winding in described transformer body.
6. pressure regulating and capacitance regulating distribution transformer according to claim 1, is characterized in that, the coil of the high pressure winding in described transformer body adopts cardboard cylinder to support, and the outside of described cardboard cylinder is provided with outer stay.
7. pressure regulating and capacitance regulating distribution transformer according to claim 1, is characterized in that, the coil of the low pressure winding in described transformer body adopts cardboard cylinder to support, and the outside of described cardboard cylinder is provided with outer stay.
8. according to the pressure regulating and capacitance regulating distribution transformer described in claim 6 or 7 any one, it is characterized in that, in described cardboard cylinder, there is auxiliary stay in outside in the distance increase at a distance of 60-70mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320544823.1U CN203607230U (en) | 2013-09-02 | 2013-09-02 | Voltage and capacitance-regulating distribution transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320544823.1U CN203607230U (en) | 2013-09-02 | 2013-09-02 | Voltage and capacitance-regulating distribution transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203607230U true CN203607230U (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320544823.1U Expired - Fee Related CN203607230U (en) | 2013-09-02 | 2013-09-02 | Voltage and capacitance-regulating distribution transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN203607230U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108470650A (en) * | 2018-03-05 | 2018-08-31 | 郭嘉川 | A kind of power grid intelligent voltage regulator loaded tap-off mechanical switch |
-
2013
- 2013-09-02 CN CN201320544823.1U patent/CN203607230U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108470650A (en) * | 2018-03-05 | 2018-08-31 | 郭嘉川 | A kind of power grid intelligent voltage regulator loaded tap-off mechanical switch |
| CN108470650B (en) * | 2018-03-05 | 2019-08-20 | 丁世轩 | A kind of power grid intelligent voltage regulator loaded tap-off mechanical switch |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20210902 |