CN103035384A - 6kV/10kV changeover dual-purpose distribution transformer - Google Patents
6kV/10kV changeover dual-purpose distribution transformer Download PDFInfo
- Publication number
- CN103035384A CN103035384A CN2012105668617A CN201210566861A CN103035384A CN 103035384 A CN103035384 A CN 103035384A CN 2012105668617 A CN2012105668617 A CN 2012105668617A CN 201210566861 A CN201210566861 A CN 201210566861A CN 103035384 A CN103035384 A CN 103035384A
- Authority
- CN
- China
- Prior art keywords
- voltage
- shunting switch
- switch
- distribution transformer
- gear
- 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.)
- Pending
Links
Images
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a 6kV/10kV changeover dual-purpose distribution transformer, which relates to the technical field of transformer equipment. The 6kV/10kV changeover dual-purpose distribution transformer comprises a first tapping switch and a second tapping switch which are connected to a high-voltage winding of the transformer, wherein the interfaces A, B and C of the first gear of the first tapping switch are connected with the interfaces A, B and C of the first gear of the second tapping switch respectively in a high voltage d connecting way; and the interfaces X, Y and Z of the second gear of the first switch are connected with the interfaces X, Y and Z of the second gear of the second switch respectively in a high voltage y connecting way. Due to the adoption of the 6kV/10kV changeover dual-purpose distribution transformer, repeated investment of a user is reduced, and urgent needs are met while long-term benefit is considered, i.e., two voltages of 6kV and 10kV can be satisfied; when Y connection is adopted for a high-voltage winding in a distribution transformer of which the rated voltage is 10kV, the line voltage is 10kV, the phase voltage is 5.774, and a voltage difference of -0.226kV exists corresponding to a rated voltage of 6kV; and specific to the aim of keeping a low-voltage output voltage constant, corresponding number of turns is required to be increased for the high-voltage winding, so that the distribution transformer is suitable for a rated voltage of 10kV, and is also suitable for a rated voltage of 6kV through simple switch changeover.
Description
Technical field
The present invention relates to the transformer equipment technical field, be specifically related to a kind of 6kV/10kV transformation dual-purpose distribution transformer.
Background technology
Power transformer is a kind of static electric equipment, is the equipment that the alternating voltage (electric current) of a certain numerical value is become the identical another kind of or voltage (electric current) that several numerical value are different of frequency.When a winding passes to alternating current, just produce the magnetic flux of alternation, the magnetic flux of alternation just induces AC electromotive force by the effect of iron core magnetic conduction in secondary winding.How much relevant the height of secondary induced electromotive force is with a secondary winding number of turn, and namely voltage swing is directly proportional with the number of turn.Main Function is electric energy transmitting, and therefore, rated capacity is its major parameter.Rated capacity is the habitual value of a performance power, and it is the size that characterizes electric energy transmitting, represents with kVA or MVA, when transformer is applied rated voltage, determines to be no more than the rated current of temperature limit according to it under rated condition.At present, China replaces the power supply of 6kV level with the power supply of 10kV level, now substantially finish, but still some industrial and mining enterprises is because situation is special, and electric power system and equipment are not still upgraded or finished upgrading still needs a period of time.
Summary of the invention
Technical problem to be solved by this invention is to provide 6kV/10kV transformation dual-purpose distribution transformer a kind of simple in structure, easy to operate.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of 6kV/10kV transformation dual-purpose distribution transformer, comprise the first shunting switch and the second shunting switch that are connected on the transformer high-voltage winding, the mode that first grade of A, B of described the first shunting switch, C interface connect by high pressure d is connected respectively to A, B, the C interface of first grade of the second shunting switch, and the mode that second gear X, the Y of described the first switch, Z interface connect by high pressure y is connected respectively to X, Y, the Z interface of second switch second gear.
Described the second shunting switch is that the Y/D conversion is used.
The first shunting switch is to regulate tap shelves usefulness, and is the same with common distribution transformer operation principle, and the second shunting switch is that the Y/D conversion is used; After A, the B of A, the B of first grade of the second shunting switch, C interface and first grade of the first shunting switch, mode that C interface adopts high pressure d to connect were connected, should access in the 6kV electrical network this moment, and output voltage is 0.4kV; When mode that X, the Y of the second shunting switch second gear, Z interface connect by high pressure y with after X, Y, the Z interface of the first shunting switch second gear are connected, should be linked in the 10kV electrical network at this moment, output voltage is 0.4kV.When consumer networks is 6kV, as long as the second shunting switch is transferred to the first file location, when being transferred to the 10kV electrical network, as long as shunting switch is transferred to the second gear position to be connect and can move, simple to operation.
The invention has the beneficial effects as follows: the present invention has reduced user's overlapping investment, should satisfy urgent need, it is long-range to take into account again, that is to say the distribution transformer that can satisfy 6kV and two kinds of voltages of 10kV, be in the distribution transformer of 10kV in rated voltage, when the high pressure winding adopts Y to connect, its line voltage is 10kV, phase voltage is 5.774, still have-voltage difference of 0.226kV corresponding to the 6kV rated voltage, in order to make the low pressure output voltage constant, the high pressure winding need increase corresponding turn compensation, so namely be applicable to the 10kV rated voltage, just be applicable to the 6kV rated voltage by the simple switch conversion.
Description of drawings
Fig. 1 is the present invention's the first shunting switch and the second shunting switch catenation principle figure;
Fig. 2 is the mode schematic diagram that high pressure y of the present invention connects;
Fig. 3 is high pressure d bind mode schematic diagram of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 1-Figure 3, a kind of 6kV/10kV transformation dual-purpose distribution transformer, comprise the first shunting switch and the second shunting switch that are connected on the transformer high-voltage winding, the mode that first grade of A, B of the first shunting switch, C interface connect by high pressure d is connected respectively to A, B, the C interface of first grade of the second shunting switch, and the mode that second gear X, the Y of described the first switch, Z interface connect by high pressure y is connected respectively to X, Y, the Z interface of second switch second gear.
The first shunting switch is to regulate tap shelves usefulness, and is the same with common distribution transformer operation principle, and the second shunting switch is that the Y/D conversion is used; After A, the B of A, the B of first grade of the second shunting switch, C interface and first grade of the first shunting switch, mode that C interface adopts high pressure d to connect were connected, should access in the 6kV electrical network this moment, and output voltage is 0.4kV; When mode that X, the Y of the second shunting switch second gear, Z interface connect by high pressure y with after X, Y, the Z interface of the first shunting switch second gear are connected, should be linked in the 10kV electrical network at this moment, output voltage is 0.4kV.When consumer networks is 6kV, as long as the second shunting switch is transferred to the first file location, when being transferred to the 10kV electrical network, as long as shunting switch is transferred to the second gear position to be connect and can move, simple to operation.
In order to reduce user's overlapping investment, should satisfy urgent need, it is long-range to take into account again, that is to say the distribution transformer that will satisfy 6kV and two kinds of voltages of 10kV, my company for the Demand Design that solves the user the dual-purpose distribution transformer of 6kV/10kV simple to operate.To use two switches in this invention, one is used for normal shunting voltage regulating (the first shunting switch), one is used for Y/ △ conversion (the second shunting switch), and this scheme key point is: 1, the tap number of turn of winding is definite value, and the no-load voltage ratio allowable deviation when satisfying different the connection; Phase current when 2, winding conducting wire should be tied by Y is chosen, and lead-out wire when tying by D line current choose; 3, the structural shape of switch, parameter, insulation level should satisfy the instructions for use of the various service conditionss of transformer.
Take S11-500/10～6 transformers as example, the technical parameter under two kinds of connections all meets national technical standard, and design data sees Table 1 and table 2.
Table 1 turns calculations
Table 2 performance parameter
Above demonstration and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. 6kV/10kV transformation dual-purpose distribution transformer, comprise the first shunting switch and the second shunting switch that are connected on the transformer high-voltage winding, the mode that first grade of A, B of described the first shunting switch, C interface connect by high pressure d is connected respectively to A, B, the C interface of first grade of the second shunting switch, and the mode that second gear X, the Y of described the first switch, Z interface connect by high pressure y is connected respectively to X, Y, the Z interface of second switch second gear.
2. a kind of 6kV/10kV transformation dual-purpose distribution transformer according to claim 1 is characterized in that: described the first shunting switch is to regulate tap shelves usefulness, and is the same with common distribution transformer operation principle, and the second shunting switch is that the Y/D conversion is used;
After A, the B of A, the B of first grade of the second shunting switch, C interface and first grade of the first shunting switch, mode that C interface adopts high pressure d to connect were connected, should access in the 6kV electrical network this moment, and output voltage is 0.4kV; When mode that X, the Y of the second shunting switch second gear, Z interface connect by high pressure y with after X, Y, the Z interface of the first shunting switch second gear are connected, should be linked in the 10kV electrical network this moment, output voltage is 0.4kV, when consumer networks is 6kV, as long as the second shunting switch is transferred to the first file location, when being transferred to the 10kV electrical network, connecing and to move as long as shunting switch is transferred to the second gear position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105668617A CN103035384A (en) | 2012-12-24 | 2012-12-24 | 6kV/10kV changeover dual-purpose distribution transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105668617A CN103035384A (en) | 2012-12-24 | 2012-12-24 | 6kV/10kV changeover dual-purpose distribution transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103035384A true CN103035384A (en) | 2013-04-10 |
Family
ID=48022189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105668617A Pending CN103035384A (en) | 2012-12-24 | 2012-12-24 | 6kV/10kV changeover dual-purpose distribution transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103035384A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201413760Y (en) * | 2009-06-11 | 2010-02-24 | 郑州金阳电气有限公司 | 6kv and 10kv double-voltage distribution transformer |
| CN101699738A (en) * | 2009-12-07 | 2010-04-28 | 河南省电力公司许昌供电公司 | 6k/10kV level star-delta transformation dual-purpose transformer |
| CN202134379U (en) * | 2011-07-11 | 2012-02-01 | 申达电气集团有限公司 | Double-voltage convertible transformer |
-
2012
- 2012-12-24 CN CN2012105668617A patent/CN103035384A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201413760Y (en) * | 2009-06-11 | 2010-02-24 | 郑州金阳电气有限公司 | 6kv and 10kv double-voltage distribution transformer |
| CN101699738A (en) * | 2009-12-07 | 2010-04-28 | 河南省电力公司许昌供电公司 | 6k/10kV level star-delta transformation dual-purpose transformer |
| CN202134379U (en) * | 2011-07-11 | 2012-02-01 | 申达电气集团有限公司 | Double-voltage convertible transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102360857B (en) | Integrated network distributing transformer with error compensating mutual inductor | |
| CN202134379U (en) | Double-voltage convertible transformer | |
| CN201845649U (en) | Oil-immersed dual-voltage on-load voltage regulating transformer | |
| CN202887957U (en) | Double-split rectifier transformer used by dual circuit | |
| CN202189670U (en) | Combined current converter | |
| CN202067649U (en) | On-load capacity-regulating power transformer | |
| CN103606445A (en) | Method for effectively reducing current passing through on-load tap-changer of transformers | |
| CN201698878U (en) | Dual-voltage transformer | |
| CN203415390U (en) | Voltage-regulating transformer for realizing high-insulation and large-current on-load voltage regulation | |
| CN203325665U (en) | Frequency-conversion phase-shift rectifier transformer | |
| CN101404202A (en) | Low-pressure side on-load tap changer | |
| CN204810154U (en) | Four posts three -phase compensation formula low pressure voltage regulator unshakable in one's determination | |
| CN201413766Y (en) | 110kv power transformer with automatic reactive power compensation voltage regulating function | |
| CN203180458U (en) | Self-powered ice-melting electric reactor | |
| CN103035384A (en) | 6kV/10kV changeover dual-purpose distribution transformer | |
| CN207302855U (en) | 6KV, 10KV general oil immersion-type distribution transformer | |
| CN109741924B (en) | Traction transformer | |
| CN207338099U (en) | Exceed loading capability transformer | |
| CN203377570U (en) | Self-energized-regulation ice-melting power source | |
| CN203338958U (en) | Adjustable variable transformer | |
| CN203338924U (en) | High-voltage side auxiliary power supply of transformer | |
| CN202034209U (en) | Three-phase oil-immersed type load tap changing distribution transformer | |
| CN201805356U (en) | Voltage regulation type rectifier transformer | |
| CN102360848A (en) | Method for realizing high-insulation and large-current on-load voltage regulation, and regulating transformer | |
| CN102403910A (en) | Voltage-regulating rectifier transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130410 |