CN203950657U - Multivoltage distribution transformer - Google Patents
Multivoltage distribution transformer Download PDFInfo
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- CN203950657U CN203950657U CN201420412541.0U CN201420412541U CN203950657U CN 203950657 U CN203950657 U CN 203950657U CN 201420412541 U CN201420412541 U CN 201420412541U CN 203950657 U CN203950657 U CN 203950657U
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Abstract
The utility model discloses a kind of multivoltage distribution transformer and comprise former limit winding and secondary winding, former limit winding comprises in three-phase high-voltage winding and three-phase presses winding; Every phase high-voltage winding structure is identical, and every phase high pressure winding is equipped with six lead-in wires; Every middle winding construction of pressing is mutually identical, and every middle winding of pressing is mutually equipped with six lead-in wires; In high pressure, press winding all to realize the conversion of star angle, can adapt to multiple voltage input.Secondary winding comprises the low pressure winding of three-phase self-coupling voltage reducing Y-connection; Realize two kinds of Voltage-outputs; The first change over switch, the first change over switch respectively with the lead-in wire wiring of three-phase high-voltage winding; The second change over switch, the second change over switch is pressed the lead-in wire wiring of winding respectively with three-phase; Change and voltage ± 5% levelling at high, medium voltage side wiring star angle simultaneously.The utility model can be applicable to line voltage in all parts of the country, in the time that it is applied to oil prospecting field, can meet the electricity consumption needs of probing early development completely, thereby makes oil prospecting, and probing reaches efficiently, environmental protection, energy-conservation object.
Description
Technical field
The utility model relates to transformer technology field, relates in particular to a kind of multivoltage distribution transformer.
Background technology
Along with the development of national economy, the diposits of petroleum probing development that early stage, exploitation obtained advancing by leaps and bounds, especially away from city, abundant away from the regional diposits of petroleum reserves of electric power system, need to do a large amount of prospectings with electric power, probing work, China soil is vast, and each department supply power voltage is different, and each department line voltage has 35KV, 20KV, 10KV and many kinds of grades of 6KV.Oil prospecting like this, drilling equipment is difficult to adapt to various places line voltage requirement, need to there is a kind of multivoltage distribution transformer to meet oil prospecting drilling operation requirement, thereby be necessary to develop the distribution transformer that a kind of high and low pressure side is all many voltage gradations, to adapt to the demand of the different line voltages in different regions.
Utility model content
The purpose of this utility model is to provide a kind of multivoltage distribution transformer, and this distribution transformer has the input and output piezoelectricity of many grades simultaneously, makes the utility model can adapt to multiple need for electricity.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of multivoltage distribution transformer comprises former limit winding and secondary winding, and described former limit winding comprises in three-phase high-voltage winding and three-phase presses winding; Every mutually described high-voltage winding structure is identical and be equipped with six lead-in wires, wherein be located at two lead-in wires at every mutually described high pressure winding two ends for realizing the conversion between Y-connection and Angle connection, be wherein located at four lead-in wires of every mutually described high pressure winding interlude for adjusting the voltage of described high pressure winding; Every mutually described middle pressure winding construction is identical is equipped with six lead-in wires, wherein be located at two lead-in wires at every mutually described middle pressure winding two ends for realizing the conversion between Y-connection and Angle connection, be wherein located at four lead-in wires of every mutually described middle pressure winding interlude for adjusting the voltage of described pressure winding; Described secondary winding comprises the low pressure winding of three-phase self-coupling voltage reducing Y-connection, on every mutually described low pressure winding, is equipped with two lead-in wires; Also comprise the first change over switch, described the first change over switch respectively with the lead-in wire wiring of high pressure winding described in three-phase, be used for making described high pressure winding to change between Y-connection and Angle connection, and for the voltage of described high pressure winding is adjusted between ± 5%; The second change over switch, described the second change over switch respectively with described in three-phase in press the lead-in wire wiring of winding, be used for making described pressure winding to change between Y-connection and Angle connection, and for the voltage of described pressure winding is adjusted between ± 5%.
Optimal way is that described the first change over switch is elected two grades of Y-D change over switches of three-phase ganged formula as, comprises first grade and second gear; Described in three-phase, high voltage winding group is defined as respectively A phase, B phase and C phase, and six lead-in wires of every mutually described high pressure winding are followed successively by the first lead-in wire, the 4th lead-in wire, the second lead-in wire, the 3rd lead-in wire, the 5th lead-in wire and the 6th lead-in wire from top to bottom;
Two grades of Y-D change over switches one of described three-phase ganged formula are in the time of first grade of state, and described high pressure winding is that Y-connection and voltage are 35KV, and described the 6th lead-in wire of high pressure winding links together described in three-phase.
Two grades of Y-D change over switches one of described three-phase ganged formula are in the time of second gear state, described high pressure winding is that Angle connection and voltage are 20KV, the 5th lead-in wire of described A phase is connected with described B phase the first lead-in wire, the 5th lead-in wire of described B phase is connected with described C phase the first lead-in wire, and the 5th lead-in wire of described C phase is connected with described A phase the first lead-in wire;
Optimal way is that described the second change over switch is elected two grades of Y-D change over switches two of three-phase ganged formula as, comprises first grade and second gear; In described in three-phase, press winding to be defined as respectively Am phase, Bm phase and Cm phase, six lead-in wires of every mutually described middle pressure winding are followed successively by the first lead-in wire, the 4th lead-in wire, the second lead-in wire, the 3rd lead-in wire, the 5th lead-in wire and the 6th lead-in wire from top to bottom;
Two grades of Y-D change over switches two of described three-phase ganged formula are in the time of second gear state, and described middle pressure winding shape Y-connection and voltage are 10KV; In described in three-phase, press the 5th lead-in wire of winding to link together.
Two grades of Y-D change over switches two of described three-phase ganged formula are in the time of second gear state, and described middle pressure winding is that Angle connection and voltage are 6KV; The 5th lead-in wire of described Am phase goes between and is connected with described Bm phase first, and the 5th lead-in wire of described Bm phase is connected with described Cm phase the first lead-in wire, and the 5th of described Cm phase goes between and is connected with described Am phase the first lead-in wire;
Optimal way is that the voltage of described low pressure winding comprises 400V and 660V.
Optimal way is that every mutually described high pressure winding is drum type brake; Every mutually described middle pressure winding is drum type brake.
Adopt after technique scheme, the beneficial effects of the utility model are: because multivoltage distribution transformer described in the utility model comprises former limit winding and secondary winding, its limit, Central Plains winding comprises in three-phase high-voltage winding and three-phase presses winding; Every phase high-voltage winding structure is identical, every phase high pressure winding is equipped with six lead-in wires, wherein be located at two lead-in wires at every phase high pressure winding two ends for realizing the conversion between Y-connection and Angle connection, be wherein located at four lead-in wires of every phase high pressure winding interlude for adjusting the voltage of high pressure winding; Every middle winding construction of pressing is mutually identical, every middle winding of pressing is mutually equipped with six lead-in wires, wherein be located at every middle two lead-in wires at winding two ends of pressing mutually for realizing the conversion between Y-connection and Angle connection, be wherein located at every middle four lead-in wires of winding interlude of pressing mutually for adjusting the voltage of pressing winding; Wherein secondary winding comprises the low pressure winding of three-phase self-coupling voltage reducing Y-connection, on every phase low pressure winding, is equipped with two lead-in wires; Also comprise the first change over switch, this first change over switch respectively with the lead-in wire wiring of three-phase high-voltage winding, for high pressure winding is changed between Y-connection and Angle connection, and for the voltage of high pressure winding is adjusted between ± 5%; The second change over switch, this second change over switch is pressed the lead-in wire wiring of winding respectively with three-phase, for pressure winding is changed between Y-connection and Angle connection, and for the voltage of pressure winding is adjusted between ± 5%; The lead-in wire wiring of three-phase low-voltage winding, for regulating the output voltage of low pressure winding.The utility model, in the time coming into operation, is selected high pressure winding or middle pressure winding according to the voltage of actual electric network, and applicable winding connection structure, and the voltage of high pressure winding or middle pressure winding can be adjusted between ± 5%.In the time that line voltage is 35KV or 20KV high pressure, former limit of the present utility model is used high pressure winding; Can also change by the first change over switch the wiring connected mode of high pressure winding, allow the high pressure winding be Y-connection or Angle connection.Become after Angle connection according to the 35KV winding of the known Y-connection of electric knowledge, the voltage of high pressure winding and 20KV have individual difference.This difference can make up by the lead-in wire of the different coil groups of every phase winding, and namely the mode of connection of six lead-in wires by adjusting high pressure winding realizes.Be while pressing in 10KV or 6KV with voltage that should electrical network, the utility model presses the mode of connection of winding to realize in can adjusting in a manner described.Therefore the electrical network that the utility model can be regional with each is set up electrical connection.Low pressure winding of the present utility model also has two lead-in wires simultaneously, and exporting two kinds of voltages by self coupling mode is 400V and 660V, makes again low pressure output of the present utility model meet multiple needs.In sum, the utility model can be applicable to line voltage in all parts of the country, in the time that it is applied to oil prospecting field, can meet the electricity consumption needs of probing early development completely, thereby makes oil prospecting, and probing reaches efficiently, environmental protection, energy-conservation object.
Brief description of the drawings
Fig. 1 is the structural representation of 35 ± 5%KV high pressure winding connection of the utility model embodiment;
Fig. 2 is the structural representation of 20 ± 5%KV high pressure winding connection of the utility model embodiment;
Fig. 3 is the structural representation of pressing winding connection in 10 ± 5%KV of the utility model embodiment;
Fig. 4 is the structural representation of pressing winding connection in 6 ± 5%KV of the utility model embodiment;
Fig. 5 is the self-coupling voltage reducing structural representation of low pressure winding of the present utility model;
In figure: 1.-the first lead-in wire, 2.-the second lead-in wire, the 3.-three lead-in wire, the 4.-four lead-in wire, the 5.-five lead-in wire, the 6.-six lead-in wire.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
A kind of multivoltage distribution transformer comprises former limit winding and secondary winding,
Its limit, Central Plains winding comprises in three-phase high-voltage winding and three-phase presses winding; Every phase high-voltage winding structure is all drum type brake mutually, and be equipped with six lead-in wires, two lead-in wires (1. and 6.) that are wherein located at every phase high pressure winding two ends, for realizing the conversion between Y-connection and Angle connection, are wherein located at four lead-in wires (2., 3., 4. and 5.) of every phase high pressure winding interlude for adjusting the voltage of high pressure winding; Every middle winding construction of pressing is mutually all drum type brake mutually, and be equipped with six lead-in wires, wherein be located at and often press two lead-in wires (1. and 6.) at winding two ends for realizing the conversion between Y-connection and Angle connection in mutually, be wherein located at every mutually in four lead-in wires (2., 3., 4. and 5.) of pressure winding interlude for adjusting the voltage of pressing winding;
Wherein secondary winding comprises the low pressure winding of three-phase self-coupling voltage reducing Y-connection, on every phase low pressure winding, is equipped with two lead-in wires;
Also comprise the first change over switch, this first change over switch respectively with the lead-in wire wiring of three-phase high-voltage winding, for high pressure winding is changed between Y-connection and Angle connection, and for the voltage of high pressure winding is adjusted between ± 5%;
The second change over switch, this second change over switch is pressed the lead-in wire wiring of winding respectively with three-phase, for pressure winding is changed between Y-connection and Angle connection, and for the voltage of pressure winding is adjusted between ± 5%.
The electrical network of the present embodiment is high pressure, and voltage is while being 35KV, and as shown in Figure 1, above-mentioned the first change over switch is elected two grades of Y-D change over switches one of three-phase ganged formula as, comprises first grade and second gear; Three-phase high-voltage winding is defined as respectively A phase, B phase and C phase, six lead-in wires of every phase high pressure winding be followed successively by from top to bottom the first lead-in wire 1., the 4th lead-in wire 4., second lead-in wire 2., the 3rd lead-in wire 3., the 5th lead-in wire the 5. with six lead-in wire 6.; Two grades of Y-D change over switches one of three-phase ganged formula are adjusted to first grade of state, after adjusting, two grades of Y-D change over switches one of three-phase ganged formula allow the 6th lead-in wire of three-phase high-voltage winding be joined together to form Y-connection, now the voltage of high pressure winding is 35KV, can by the 4th lead-in wire 4., second lead-in wire 2., the 3rd lead-in wire the 3. and five lead-in wire 5. the voltage of every phase high pressure winding is adjusted between ± 5%.
In the time that the high tension voltage of electrical network is 20KV, as shown in Figure 2, adjust three-phase ganged formula two grades of Y-D change over switches by it in second gear state, after adjusting, two grades of Y-D change over switches one of three-phase ganged formula allow the 5th lead-in wire of A phase be connected with B phase the first lead-in wire, the 5th lead-in wire of B phase is connected with C phase the first lead-in wire, the 5th lead-in wire of C phase is connected with A phase the first lead-in wire, and high pressure winding forms Angle connection; Also can by the 4th lead-in wire 4., second lead-in wire 2., the 3rd lead-in wire the 3. and five lead-in wire 5. the voltage of every phase high pressure winding is adjusted between ± 5%.If when the voltage of the 35KV of star-star connection is adjusted to the 20KV voltage of angle scheme by the utility model, the voltage difference of have-208V of centre.For this voltage difference, the utility model is to realize by reducing the high pressure winding umber of turn when the angle scheme.
As shown in Figure 5, three-phase low-voltage winding is defined as respectively ay2 phase, by2 phase and cy2 phase and neutral lead o, and three lead-in wires are: ay1 phase, by1 phase and cy1 phase; When the first change over switch is first grade or second gear, the voltage ay2 of low pressure winding, by2, cy2 is 660V; Or the voltage ay1 of low pressure winding, by1, cy1 is 400V.The principle of this self-coupling is: share one group of winding, adjust voltage by the number of turn of adjusting effective winding.
The method of changing between Y-connection and Angle connection that the utility model adopts, can make high voltage winding group that the voltage of two grades is provided simultaneously, thereby save umber of turn, save transformer electric material, guarantee that iron core magnetic flux density is constant, make transformer noload losses and no-load current constant.The utility model is keeping in the constant situation of low pressure winding output capacity simultaneously, and optional voltage autotransformer winding is to save material most, is again that output energy and transmitting energy combine.In sum, the utility model can be applicable to line voltage in all parts of the country, in the time that it is applied to oil prospecting field, can meet the electricity consumption needs of probing early development completely, thereby makes oil prospecting, and probing reaches efficiently, environmental protection, energy-conservation object.
Multiple voltage distribution energy-economic transformer with make one transport vehicle, like this can so that transport, be convenient to park, easy to use.
The utility model application when line voltage is middle pressure 10KV or 6KV, as shown in Fig. 3, Fig. 4 and Fig. 5, in former limit use of the present utility model, press winding.The second change over switch is two grades of Y-D change over switches two of three-phase ganged formula, comprises first grade and second gear; In three-phase, press winding to be defined as respectively Am phase, Bm phase and Cm phase, every press in mutually six lead-in wires of winding be followed successively by from top to bottom the first lead-in wire 1., the 4th lead-in wire 4., the second lead-in wire 2., the 3rd lead-in wire 3., the 5th lead-in wire the 5. with six lead-in wire 6.;
When two grades of Y-D change over switches two of three-phase ganged formula are during in first grade of state, middle pressure winding shape is that Y-connection and voltage are 10KV, in three-phase, press winding the 6th lead-in wire 6. link together, can by the 4th lead-in wire 4., second lead-in wire 2., the 3rd lead-in wire the 3. and five lead-in wire 5. the voltage of middle pressure winding is adjusted between ± 5%;
When two grades of Y-D change over switches two of three-phase ganged formula are during in second gear state, middle pressure winding Angle connection and voltage are 6KV; The 5th lead-in wire of Am phase goes between and is connected with Bm phase first, and the 5th lead-in wire of Bm phase is connected with Cm phase the first lead-in wire, and the 5th of Cm phase goes between and is connected with Am phase the first lead-in wire; Can by the 4th lead-in wire 4., second lead-in wire 2., the 3rd lead-in wire the 3. and five lead-in wire 5. the voltage of middle pressure winding is adjusted between ± 5%; If when the voltage of the 10kv of star-star connection is adjusted to angle scheme 6kv voltage, have+226 volts of voltage differences of centre, for this voltage difference the utility model, realize by increasing the umber of turn of high pressure winding when the angle scheme.
As shown in Figure 5, when operation wiring and voltage 35kv conversion 20kv, low pressure winding connection is identical for three-phase low-voltage winding.
Change over switch is common practise, is a kind of many gears, multisection type, the multiloop master control electrical apparatus of control, in the time that operating grip rotates, drives the cam of switch inside to rotate, thereby makes contact closing in sequence or disconnection in accordance with regulations; Do not draw in the accompanying drawings concrete structure.
The above preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, etc. same multivoltage distribution transformer and improvement etc., within all should being included in protection range of the present utility model.
Claims (5)
1. multivoltage distribution transformer, comprises former limit winding and secondary winding, it is characterized in that:
Described former limit winding comprises in three-phase high-voltage winding and three-phase presses winding; Every mutually described high-voltage winding structure is identical and be equipped with six lead-in wires, wherein be located at two lead-in wires at every mutually described high pressure winding two ends for realizing the conversion between Y-connection and Angle connection, be wherein located at four lead-in wires of every mutually described high pressure winding interlude for adjusting the voltage of described high pressure winding; Every mutually described middle pressure winding construction is identical is equipped with six lead-in wires, wherein be located at two lead-in wires at every mutually described middle pressure winding two ends for realizing the conversion between Y-connection and Angle connection, be wherein located at four lead-in wires of every mutually described middle pressure winding interlude for adjusting the voltage of described pressure winding;
Described secondary winding comprises the low pressure winding of three-phase self-coupling voltage reducing Y-connection, on every mutually described low pressure winding, is equipped with two lead-in wires; Also comprise
The first change over switch, described the first change over switch respectively with the lead-in wire wiring of high pressure winding described in three-phase, be used for making described high pressure winding to change between Y-connection and Angle connection, and for the voltage of described high pressure winding is adjusted between ± 5%;
The second change over switch, described the second change over switch respectively with described in three-phase in press the lead-in wire wiring of winding, be used for making described pressure winding to change between Y-connection and Angle connection, and for the voltage of described pressure winding is adjusted between ± 5%.
2. multivoltage distribution transformer according to claim 1, is characterized in that:
Described the first change over switch is two grades of Y-D change over switches one of three-phase ganged formula, comprises first grade and second gear;
Described in three-phase, high voltage winding group is defined as respectively A phase, B phase and C phase, and six lead-in wires of every mutually described high pressure winding are followed successively by the first lead-in wire, the 4th lead-in wire, the second lead-in wire, the 3rd lead-in wire, the 5th lead-in wire and the 6th lead-in wire from top to bottom;
Two grades of Y-D change over switches one of described three-phase ganged formula are in the time of first grade of state, and described high pressure winding is that Y-connection and voltage are 35KV, and described the 6th lead-in wire of high pressure winding links together described in three-phase;
Two grades of Y-D change over switches one of described three-phase ganged formula are in the time of second gear state, described high pressure winding is that Angle connection and voltage are 20KV, the 5th lead-in wire of described A phase is connected with described B phase the first lead-in wire, the 5th lead-in wire of described B phase is connected with described C phase the first lead-in wire, and the 5th lead-in wire of described C phase is connected with described A phase the first lead-in wire.
3. multivoltage distribution transformer according to claim 1 and 2, is characterized in that:
Described the second change over switch is two grades of Y-D change over switches two of three-phase ganged formula, comprises first grade and second gear;
In described in three-phase, press winding to be defined as respectively Am phase, Bm phase and Cm phase, six lead-in wires of every mutually described middle pressure winding are followed successively by the first lead-in wire, the 4th lead-in wire, the second lead-in wire, the 3rd lead-in wire, the 5th lead-in wire and the 6th lead-in wire from top to bottom;
Two grades of Y-D change over switches two of described three-phase ganged formula are in the time of first grade of state, and the Y-connection of described middle pressure winding and voltage are 10KV; In described in three-phase, press the 5th lead-in wire of winding to link together;
Two grades of Y-D change over switches two of described three-phase ganged formula are in the time of second gear state, and described middle pressure winding is that Angle connection and voltage are 6KV; The 5th lead-in wire of described Am phase goes between and is connected with described Bm phase first, and the 5th lead-in wire of described Bm phase is connected with described Cm phase the first lead-in wire, and the 5th of described Cm phase goes between and is connected with described Am phase the first lead-in wire.
4. multivoltage distribution transformer according to claim 3, is characterized in that: the voltage of described low pressure winding comprises 400V and 660V.
5. multivoltage distribution transformer according to claim 4, is characterized in that: every mutually described high pressure winding is drum type brake, and every mutually described middle pressure winding is drum type brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420412541.0U CN203950657U (en) | 2014-07-24 | 2014-07-24 | Multivoltage distribution transformer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420412541.0U CN203950657U (en) | 2014-07-24 | 2014-07-24 | Multivoltage distribution transformer |
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| CN203950657U true CN203950657U (en) | 2014-11-19 |
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| CN201420412541.0U Expired - Fee Related CN203950657U (en) | 2014-07-24 | 2014-07-24 | Multivoltage distribution transformer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109104017A (en) * | 2018-09-29 | 2018-12-28 | 东方电气集团东方电机有限公司 | The mode of connection of the single, double star corner connection switching of motor is realized using double outlet boxes |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
-
2014
- 2014-07-24 CN CN201420412541.0U patent/CN203950657U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109104017A (en) * | 2018-09-29 | 2018-12-28 | 东方电气集团东方电机有限公司 | The mode of connection of the single, double star corner connection switching of motor is realized using double outlet boxes |
| CN109104017B (en) * | 2018-09-29 | 2020-06-02 | 东方电气集团东方电机有限公司 | Wiring method for realizing single-star and double-star angular connection switching of motor by using double outlet boxes |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
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| 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: 20141119 Termination date: 20160724 |