CN216133752U

CN216133752U - Voltage regulating winding and self-coupling power transformer

Info

Publication number: CN216133752U
Application number: CN202121851153.9U
Authority: CN
Inventors: 黄苗苗; 卫晨; 冯晨刚; 王铭
Original assignee: Siemens Transformer Guangzhou Co Ltd
Current assignee: Guangzhou Siemens Energy Transformer Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-03-25
Anticipated expiration: 2031-08-09

Abstract

The embodiment of the utility model discloses a voltage regulating winding and an auto-coupling power transformer, relating to the technical field of electricity, wherein the voltage regulating winding comprises: m coils, each coil comprising N conducting wires, wherein M is an integer greater than or equal to 4, and N is an integer greater than 1; wherein, M coil packsThe M multiplied by N conducting wires are arranged from one end of the voltage regulating winding to the other end; the coils are electrically connected in parallel, N wires contained in each coil are electrically connected in series, and one end of each coil, into which current flows, is positioned at the fourth end of the M multiplied by N wires

Lead to

Between the leads, or one end of each coil from which current flows is located at the second of the M x N leads

Lead to

Between the individual conductors. The utility model increases the series capacitance of the voltage regulating winding and can better reduce the influence caused by impulse voltage.

Description

Voltage regulating winding and self-coupling power transformer

Technical Field

The utility model relates to the technical field of electricity, in particular to a voltage regulating winding and an autotransformer.

Background

A transformer is a stationary electrical device that is used to transform an ac voltage (current) of a certain value into another voltage (current) of the same frequency or different values. However, when a surge voltage is suddenly generated due to an external environment, the transformer is greatly affected, for example, the surge voltage is generated due to a lightning surge. At this time, the surge voltage can be reduced by the voltage regulating winding in the transformer due to its own capacitance characteristic. However, in the related art, the voltage regulating winding has a weak capability of reducing impulse voltage, large circulating current loss and high average temperature rise, and normal operation of the transformer is influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above, embodiments of the present application provide a voltage regulating winding and an autotransformer to solve some or all of the above problems.

According to a first aspect of embodiments of the present application, there is provided a voltage regulating winding, including: m coils, each coil comprising N conducting wires, wherein M is an integer greater than or equal to 4, and N is an integer greater than 1; m multiplied by N leads contained in the M coils are arranged from one end of the voltage regulating winding to the other end; the coils are electrically connected in parallel, N wires contained in each coil are electrically connected in series, and one end of each coil, into which current flows, is positioned at the fourth end of the M multiplied by N wires

Lead to

Lead to

Between the individual conductors.

According to an alternative embodiment of the first aspect, M, N are both equal to 4; among 16 wires that M coils contained, the 1 st coil includes the 1 st wire, the 2 nd wire, the 7 th wire, the 8 th wire, the 2 nd coil includes the 3 rd wire, the 4 th wire, the 5 th wire, the 6 th wire, the 3 rd coil includes the 9 th wire, the 10 th wire, the 15 th wire, the 16 th wire, the 4 th coil includes the 11 th wire, the 12 th wire, the 13 th wire, the 14 th wire.

According to an alternative embodiment of the first aspect, the 4 wires included in each coil are serially connected in sequence from the two ends of the coil to the middle.

According to an alternative embodiment of the first aspect, the 1 st coil current inflow end of the 16 conductors is on the 8 th conductor, the 2 nd coil current inflow end of the 16 th conductor is on the 6 th conductor, the 3 rd coil current inflow end of the 16 th conductor is on the 9 th conductor, and the 4 th coil current inflow end of the 16 th conductor is on the 11 th conductor.

According to an alternative embodiment of the first aspect, in the 1 st coil 1011, a first end of the 8 th conducting wire 1028 is an end into which current flows, a second end of the 8 th conducting wire 1028 is connected to a first end of the 1 st conducting wire 1021, a second end of the 1 st conducting wire 1021 is connected to a first end of the 7 th conducting wire 1027, a second end of the 7 th conducting wire 1027 is connected to a first end of the 2 nd conducting wire 1022, and a second end of the 2 nd conducting wire 1022 is an end from which current flows;

in coil 2 1012, a first end of 6 th conducting wire 1026 is an end into which a current flows, a second end of 6 th conducting wire 1026 is connected to a first end of 3 rd conducting wire 1023, a second end of 3 rd conducting wire 1023 is connected to a first end of 5 th conducting wire 1025, a second end of 5 th conducting wire 1025 is connected to a first end of 4 th conducting wire 1024, and a second end of 4 th conducting wire 1024 is an end from which a current flows;

in the 3 rd coil 1013, a first end of a 9 th conducting wire 1029 is an end into which a current flows, a second end of the 9 th conducting wire 1029 is connected to a first end of a 16 th conducting wire 10216, a second end of the 16 th conducting wire 10216 is connected to a first end of a 10 th conducting wire 10210, a second end of the 10 th conducting wire 10210 is connected to a first end of a 15 th conducting wire 10215, and a second end of the 15 th conducting wire 10215 is an end from which a current flows;

in the 4 th coil 1014, a first end of an 11 th conducting wire 10211 is an end into which a current flows, a second end of the 11 th conducting wire 10211 is connected to a first end of a 14 th conducting wire 10214, a second end of the 14 th conducting wire 10214 is connected to a first end of a 12 th conducting wire 10212, a second end of the 12 th conducting wire 10212 is connected to a first end of a 13 th conducting wire 10213, and a second end of the 13 th conducting wire 10213 is an end from which a current flows.

According to an alternative embodiment of the first aspect, of the 16 conductors, the 1 st coil current outgoing end is on the 7 th conductor, the 2 nd coil current outgoing end is on the 5 th conductor, the 3 rd coil current outgoing end is on the 10 th conductor, and the 4 th coil current outgoing end is on the 12 th conductor.

According to an alternative embodiment of the first aspect, in the 1 st coil 1011, a first end of the 1 st conducting wire 1021 is an end into which a current flows, a second end of the 1 st conducting wire 1021 is connected to a first end of the 8 th conducting wire 1028, a second end of the 8 th conducting wire 1028 is connected to a first end of the 2 nd conducting wire 1022, a second end of the 2 nd conducting wire 1022 is connected to a first end of the 7 th conducting wire 1027, and a second end of the 2 nd conducting wire 1022 is an end from which a current flows;

in 2 nd coil 1012, a first end of 3 rd conductive wire 1023 is an end into which a current flows, a second end of 3 rd conductive wire 1023 is connected to a first end of 6 th conductive wire 1026, a second end of 6 th conductive wire 1026 is connected to a first end of 4 th conductive wire 1024, a second end of 4 th conductive wire 1024 is connected to a first end of 5 th conductive wire 1025, and a second end of 4 th conductive wire 1024 is an end from which a current flows;

in the 3 rd coil 1013, a first end of a 16 th conducting wire 10216 is an end into which a current flows, a second end of the 16 th conducting wire 10216 is connected to a first end of a 9 th conducting wire 1029, a second end of the 9 th conducting wire 1029 is connected to a first end of a 15 th conducting wire 10215, a second end of the 15 th conducting wire 10215 is connected to a first end of a 10 th conducting wire 10210, and a second end of the 10 th conducting wire 10210 is an end from which a current flows;

in the 4 th coil 1014, a first end of a 14 th conducting wire 10214 is an end into which a current flows, a second end of the 14 th conducting wire 10214 is connected to a first end of an 11 th conducting wire 10211, a second end of the 11 th conducting wire 10211 is connected to a first end of a 13 th conducting wire 10213, a second end of the 13 th conducting wire 10213 is connected to a first end of a 12 th conducting wire 10212, and a second end of the 13 th conducting wire 10213 is an end from which a current flows.

According to a second aspect of embodiments of the present application, there is provided a transformer, including: the voltage regulating winding as described in the first aspect or any one of the embodiments of the first aspect, the transformer further comprises a common coil, a series coil, and a core.

According to the voltage regulating winding and the self-coupling power transformer provided by the embodiment of the application, the voltage regulating winding comprises M coils, each coil comprises N conducting wires, M is an integer greater than or equal to 4, and N is an integer greater than 1; m multiplied by N leads contained in the M coils are arranged from one end of the voltage regulating winding to the other end; the coils are electrically connected in parallel, N wires contained in each coil are electrically connected in series, and one end of each coil, into which current flows, is positioned at the fourth end of the M multiplied by N wires

Lead to

Lead to

Between the individual conductors. Because the wire at which the current inflow end or the current outflow end of each coil is positioned at the first end of the M multiplied by N wires according to the numbering sequence

Lead to

The series capacitance of the voltage regulating winding is increased between the leads, namely, the middle parts of the MXN leads, so that the influence caused by impulse voltage can be better reduced, the ground circulation loss in the voltage regulating winding is reduced, and the average temperature rise of the voltage regulating winding is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application 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, it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present application, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 is a structural diagram of a voltage regulating winding according to an embodiment of the present application;

fig. 2 is a structural diagram of another voltage regulating winding provided in the embodiment of the present application;

fig. 3a is a schematic diagram of a wire connection of a 1 st coil according to an embodiment of the present application;

fig. 3b is a schematic diagram of a 2 nd coil according to an embodiment of the present disclosure;

fig. 3c is a schematic diagram of a 2 nd coil according to an embodiment of the present invention;

fig. 3d is a schematic diagram of a 2 nd coil according to an embodiment of the present invention;

FIG. 4a is a schematic diagram of a wire connection of another coil 1 according to an embodiment of the present disclosure;

FIG. 4b is a schematic diagram of a wire connection of another 2 nd coil according to an embodiment of the present application;

FIG. 4c is a schematic diagram of a wire connection of another coil 3 according to an embodiment of the present application;

FIG. 4d is a schematic diagram of a wire connection of another coil No. 4 according to an embodiment of the present application;

fig. 5 is a structural diagram of an auto-transformer according to an embodiment of the present disclosure.

List of reference numerals:

10: a voltage regulating winding; 101: a coil; 102: a wire;

1011: the 1 st coil; 1012: the 2 nd coil; 1013: the 3 rd coil; 1014: the 4 th coil;

1021: the 1 st conductive line; 1022: a 2 nd conductive line; 1023: a 3 rd conductive line; 1024: the 4 th conductive line; 1025: the 5 th conductive line; 1026: the 6 th conductive line; 1027: the 7 th conductive line; 1028: the 8 th conductive line; 1029: the 9 th conductive line; 10210: the 10 th conductive line; 10211: the 11 th conductive line; 10212: a 12 th conductive line; 10213: the 13 th conductive line; 10214: the 14 th conductive line; 10215: the 15 th conductive line; 10216: the 16 th conductive line;

20: an auto-power transformer; 201: a common coil; 202: a series coil; 203: an iron core; 204: and a low-voltage coil.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application shall fall within the scope of the protection of the embodiments in the present application.

The following further describes specific implementations of embodiments of the present application with reference to the drawings of the embodiments of the present application.

An embodiment of the present application provides a voltage regulating winding, as shown in fig. 1, fig. 1 is a structural diagram of the voltage regulating winding provided in the embodiment of the present application, and the voltage regulating winding 10 includes: m coils 101, each coil 101 comprising N conducting wires 102, M being an integer greater than or equal to 4, N being an integer greater than 1; m × N wires 102 included in the M coils 101 are arranged in a direction from one end of the voltage-regulating winding 10 to the other end; the coils 101 are electrically connected in parallel, the N wires 102 included in each coil 101 are electrically connected in series, and one end of each coil 101 into which current flows is located at the fourth of the M × N wires 102

From the conductive line 102 to the second

Between the conducting wires 102, or one end of each coil 101 from which current flows is located at the second of the M × N conducting wires 102

From the conductive line 102 to the second

Between the individual conductors 102.

In the present application, the M × N conductive lines 102 may be numbered in sequence according to the arrangement direction, i.e., the first

From the conductive line 102 to the second

The plurality of conductive lines 102 are located at the middle of the plurality of M × N conductive lines 102, wherein,

represents rounding down for (M/2-1),

Figure DEST_PATH_GDA00035122504400000410

indicating that (M/2+1) is rounded up. The wire 102 in this application may be a wire with an insulating sheath. One end of each coil 101 into which current flows is an input end of the coil 101, and one end of each coil 101 out which current flows is an output end of the coil 101. Because the wire 102 on which the current-flowing end or the current-flowing end of each coil 101 is located is positioned at the first of the M × N wires 102 in the numbering order

Figure DEST_PATH_GDA00035122504400000411

From the conductive line 102 to the second

Figure DEST_PATH_GDA00035122504400000412

The series capacitance of the voltage regulating winding 10 is increased between the leads 102, i.e. in the middle of the M × N leads 102, so that the influence caused by surge voltage can be reduced better. Moreover, because the positions of the wires 102 where the input ends or the output ends are located in the leakage magnetic field are concentrated and closer to each other, the circulating current between the wires 102 is reduced, so that the circulating current loss is reduced, the load loss of the voltage regulating winding is reduced, the average temperature rise and the hot spot temperature rise of the voltage regulating winding are reduced, and the cost of the transformer is reduced.

Optionally, a specific application scenario is listed here to further explain the voltage regulating winding. As shown in fig. 2, fig. 2 is a structural diagram of another voltage regulating winding provided in the embodiment of the present application, and in an alternative embodiment, M, N is equal to 4; of 16 wires included in the M coils, the 1 st coil 1011 includes the 1 st wire 1021, the 2 nd wire 1022, the 7 th wire 1027, and the 8 th wire 1028, the 2 nd coil 1012 includes the 3 rd wire 1023, the 4 th wire 1024, the 5 th wire 1025, and the 6 th wire 1026, the 3 rd coil 1013 includes the 9 th wire 1029, the 10 th wire 10210, the 15 th wire 10215, and the 16 th wire 10216, and the 4 th coil 1014 includes the 11 th wire 10211, the 12 th wire 10212, the 13 th wire 10213, and the 14 th wire 10214. The 4 conductive wires 102 included in each coil 101 are distributed in pairs, so that the capacitance can be further increased. Wherein the 1 st to 16 th conductive lines are labeled 1021 and 10216 in sequence in fig. 2.

To further increase the series capacitance, in an alternative embodiment, the 4 wires 102 included in each coil 101 are electrically connected in series in order from the two ends of the coil to the middle. Based on the voltage regulating winding 10 shown in fig. 2, two specific examples are shown here to illustrate the connection relationship between the respective wires in the 4 coils.

Alternatively, in the first example, as shown in fig. 2, among 16 leads, 16 leads 102, the 1 st coil 101 current inflow end is on the 8 th lead 1028, the 2 nd coil current inflow end is on the 6 th lead 1026, the 3 rd coil current inflow end is on the 9 th lead 1029, and the 4 th coil current inflow end is on the 11 th lead 10211. That is, the input terminal of the 1 st coil 1011 is the terminal into which the current of the 8 th wire 1028 flows, the input terminal of the 2 nd coil 1012 is the terminal into which the current of the 6 th wire 1026 flows, the input terminal of the 3 rd coil 1013 is the terminal into which the current of the 9 th wire 1029 flows, and the input terminal of the 4 th coil 1014 is the terminal into which the current of the 11 th wire 10211 flows. The lead where the input end of the coil 101 is located is concentrated at the middle position, and the series capacitance is improved.

Alternatively, as shown in fig. 3 a-3 d, the wire connections in the respective coils are explained.

1) As shown in fig. 3a, in the 1 st coil 1011, a first end of the 8 th conducting wire 1028 is an end into which current flows, a second end of the 8 th conducting wire 1028 is connected to a first end of the 1 st conducting wire 1021, a second end of the 1 st conducting wire 1021 is connected to a first end of the 7 th conducting wire 1027, a second end of the 7 th conducting wire 1027 is connected to a first end of the 2 nd conducting wire 1022, and a second end of the 2 nd conducting wire 1022 is an end from which current flows. That is, the 8 th conductive line 1028, the 1 st conductive line 1021, the 7 th conductive line 1027, and the 2 nd conductive line 1022 are electrically connected in series in this order.

2) As shown in fig. 3b, in 2 nd coil 1012, a first end of 6 th conducting wire 1026 is an end into which current flows, a second end of 6 th conducting wire 1026 is connected to a first end of 3 rd conducting wire 1023, a second end of 3 rd conducting wire 1023 is connected to a first end of 5 th conducting wire 1025, a second end of 5 th conducting wire 1025 is connected to a first end of 4 th conducting wire 1024, and a second end of 4 th conducting wire 1024 is an end from which current flows. That is, 6 th conductive line 1026, 3 rd conductive line 1023, 5 th conductive line 1025, and 4 th conductive line 1024 are electrically connected in series in this order.

3) As shown in fig. 3c, in the 3 rd coil 1013, a first end of the 9 th conducting line 1029 is an end into which a current flows, a second end of the 9 th conducting line 1029 is connected to a first end of the 16 th conducting line 10216, a second end of the 16 th conducting line 10216 is connected to a first end of the 10 th conducting line 10210, a second end of the 10 th conducting line 10210 is connected to a first end of the 15 th conducting line 10215, and a second end of the 15 th conducting line 10215 is an end from which a current flows. That is, the 9 th line 1029, the 16 th line 10216, the 10 th line 10210 and the 15 th line 10215 are connected in series in this order.

4) As shown in fig. 3d, in the 4 th coil 1014, a first end of an 11 th conducting line 10211 is an end into which a current flows, a second end of the 11 th conducting line 10211 is connected to a first end of a 14 th conducting line 10214, a second end of the 14 th conducting line 10214 is connected to a first end of a 12 th conducting line 10212, a second end of the 12 th conducting line 10212 is connected to a first end of a 13 th conducting line 10213, and a second end of the 13 th conducting line 10213 is an end from which a current flows. That is, the 11 th line 10211, the 14 th line 10214, the 12 th line 10212 and the 13 th line 10213 are connected in series in this order.

Alternatively, in the second example, as shown in fig. 2, among 16 wires, 16 wires 102, the 1 st coil 101 current outgoing end is on the 7 th wire 1027, the 2 nd coil current outgoing end is on the 5 th wire 1025, the 3 rd coil current outgoing end is on the 10 th wire 10210, and the 4 th coil current outgoing end is on the 12 th wire 10212. That is, the output terminal of the 1 st coil 1011 is the current flowing end of the 7 th wire 1027, the output terminal of the 2 nd coil 1012 is the current flowing end of the 5 th wire 1025, the output terminal of the 3 rd coil 1013 is the current flowing end of the 10 th wire 10210, and the output terminal of the 4 th coil 1014 is the current flowing end of the 12 th wire 10212. For each coil 101, the wires where the output terminals are located are concentrated at the middle position, increasing the series capacitance.

Alternatively, as shown in fig. 4 a-4 d, the wire connections in the respective coils are explained.

1) As shown in fig. 4a, in the 1 st coil 1011, the first end of the 1 st conducting wire is the end into which the current flows, the second end of the 1 st conducting wire is connected to the first end of the 8 th conducting wire 1028, the second end of the 8 th conducting wire 1028 is connected to the first end of the 2 nd conducting wire 1022, the second end of the 2 nd conducting wire 1022 is connected to the first end of the 7 th conducting wire 1027, and the second end of the 7 th conducting wire 1027 is the end from which the current flows. That is, the 1 st conductive line 1021, the 8 th conductive line 1028, the 2 nd conductive line 1022, and the 7 th conductive line 1027 are electrically connected in series in this order.

2) As shown in fig. 4b, in 2 nd coil 1012, a first end of 3 rd conductive line 1023 is an end into which a current flows, a second end of 3 rd conductive line 1023 is connected to a first end of 6 th conductive line 1026, a second end of 6 th conductive line 1026 is connected to a first end of 4 th conductive line 1024, a second end of 4 th conductive line 1024 is connected to a first end of 5 th conductive line 1025, and a second end of 5 th conductive line 1025 is an end from which a current flows. That is, 3 rd conductive line 1023, 6 th conductive line 1026, 4 th conductive line 1024, and 5 th conductive line 1025 are electrically connected in series in this order.

3) As shown in fig. 4c, in the 3 rd coil 1013, a first end of the 16 th conducting line 10216 is an end into which a current flows, a second end of the 16 th conducting line 10216 is connected to a first end of the 9 th conducting line 1029, a second end of the 9 th conducting line 1029 is connected to a first end of the 15 th conducting line 10215, a second end of the 15 th conducting line 10215 is connected to a first end of the 10 th conducting line 10210, and a second end of the 10 th conducting line 10210 is an end from which a current flows. That is, the 16 th line 10216, the 9 th line 1029, the 15 th line 10215 and the 10 th line 10210 are electrically connected in series in this order.

4) As shown in fig. 4d, in the 4 th coil 1014, a first end of a 14 th conducting line 10214 is an end into which a current flows, a second end of the 14 th conducting line 10214 is connected to a first end of an 11 th conducting line 10211, a second end of the 11 th conducting line 10211 is connected to a first end of a 13 th conducting line 10213, a second end of the 13 th conducting line 10213 is connected to a first end of a 12 th conducting line 10212, and a second end of the 12 th conducting line 10212 is an end from which a current flows. That is, the 14 th line 10214, the 11 th line 10211, the 13 th line 10213 and the 12 th line 10212 are connected in series in this order.

The voltage regulating winding provided by the embodiment of the application comprises M coils, wherein each coil comprises N conducting wires, M is an integer greater than or equal to 4, and N is an integer greater than 1; m multiplied by N leads contained in the M coils are arranged from one end of the voltage regulating winding to the other end; the coils are electrically connected in parallel, N wires contained in each coil are electrically connected in series, and one end of each coil, into which current flows, is positioned at the fourth end of the M multiplied by N wires

Lead to

Lead to

Lead to

With reference to the voltage regulating windings described in the foregoing embodiments, an auto-transformer is further provided in this embodiment of the present application, as shown in fig. 5, fig. 5 is a structural diagram of an auto-transformer provided in this embodiment of the present application, the auto-transformer may also be referred to as an auto-transformer, the auto-transformer 20 includes the voltage regulating windings 10 described in any of the foregoing embodiments, and the auto-transformer 20 further includes a common coil 201, a series coil 202, and an iron core 203. Optionally, in one implementation, the autotransformer 20 may further include a low voltage coil 204.

The above embodiments are only used for illustrating the embodiments of the present application, and not for limiting the embodiments of the present application, and those skilled in the relevant art can make various changes and modifications without departing from the spirit and scope of the embodiments of the present application, so that all equivalent technical solutions also belong to the scope of the embodiments of the present application, and the scope of patent protection of the embodiments of the present application should be defined by the claims.

Claims

1. A voltage regulating winding (10), comprising: m coils (101), each coil (101) comprising N conducting wires (102), M being an integer greater than or equal to 4, N being an integer greater than 1;

wherein, M multiplied by N conducting wires (102) contained in the M coils (101) are arranged from one end to the other end of the voltage regulating winding (10);

the coils (101) are electrically connected in parallel, and N conducting wires (102) contained in each coil (101) are electrically connected in series;

one end of each coil (101) into which current flows is positioned atA first of the M × N conductive lines (102)

A conductor (102) to

Between the conducting wires (102), or one end of each coil (101) from which current flows is positioned at the second end of the M multiplied by N conducting wires (102)

A conductor (102) to

Between the individual conductors (102).

2. The regulating winding (10) according to claim 1, wherein M, N is equal to 4;

among 16 wires (102) that M coil (101) contained, 1 st coil (1011) includes 1 st wire (1021), 2 nd wire (1022), 7 th wire (1027), 8 th wire (1028), 2 nd coil (1012) includes 3 rd wire (1023), 4 th wire (1024), 5 th wire (1025), 6 th wire (1026), 3 rd coil (1013) includes 9 th wire (1029), 10 th wire (10210), 15 th wire (10215), 16 th wire (10216), 4 th coil (1014) includes 11 th wire (10211), 12 th wire (10212), 13 th wire (10213), 14 th wire (10214).

3. The regulating winding (10) according to claim 2, wherein the 4 wires (102) included in each coil (101) are electrically connected in series in order from the two ends of the coil to the middle.

4. The voltage regulating winding (10) of claim 3, wherein, of said 16 conductors (102), said 1 st coil current inflow end is on said 8 th conductor (1028), said 2 nd coil current inflow end is on said 6 th conductor (1026), said 3 rd coil current inflow end is on said 9 th conductor (1029), and said 4 th coil current inflow end is on said 11 th conductor (10211).

5. The voltage regulating winding (10) according to claim 4, wherein in the 1 st coil (1011), the first end of the 8 th conducting wire (1028) is the end into which current flows, the second end of the 8 th conducting wire (1028) is connected to the first end of the 1 st conducting wire (1021), the second end of the 1 st conducting wire (1021) is connected to the first end of the 7 th conducting wire (1027), the second end of the 7 th conducting wire (1027) is connected to the first end of the 2 nd conducting wire (1022), and the second end of the 2 nd conducting wire (1022) is the end from which current flows;

in said 2 nd coil (1012), a first end of said 6 th conductive line (1026) is an end into which a current flows, a second end of said 6 th conductive line (1026) is connected to a first end of said 3 rd conductive line (1023), a second end of said 3 rd conductive line (1023) is connected to a first end of said 5 th conductive line (1025), a second end of said 5 th conductive line (1025) is connected to a first end of said 4 th conductive line (1024), and a second end of said 4 th conductive line (1024) is an end from which a current flows;

in the 3 rd coil (1013), a first end of the 9 th wire (1029) is an end into which current flows, a second end of the 9 th wire (1029) is connected to a first end of the 16 th wire (10216), a second end of the 16 th wire (10216) is connected to a first end of the 10 th wire (10210), a second end of the 10 th wire (10210) is connected to a first end of the 15 th wire (10215), and a second end of the 15 th wire (10215) is an end from which current flows;

in the 4 th coil (1014), a first end of the 11 th wire (10211) is an end into which current flows, a second end of the 11 th wire (10211) is connected to a first end of the 14 th wire (10214), a second end of the 14 th wire (10214) is connected to a first end of the 12 th wire (10212), a second end of the 12 th wire (10212) is connected to a first end of the 13 th wire (10213), and a second end of the 13 th wire (10213) is an end from which current flows.

6. The voltage regulation winding (10) of claim 3, wherein the 1 st coil (101) current tap is on the 7 th conductor (1027), the 2 nd coil current tap is on the 5 th conductor (1025), the 3 rd coil current tap is on the 10 th conductor (10210), and the 4 th coil current tap is on the 12 th conductor (10212) of the 16 conductors (102).

7. The voltage regulating winding (10) according to claim 6, wherein in the 1 st coil (1011), the first end of the 1 st lead (1021) is an end into which current flows, the second end of the 1 st lead (1021) is connected to the first end of the 8 th lead (1028), the second end of the 8 th lead (1028) is connected to the first end of the 2 nd lead (1022), the second end of the 2 nd lead (1022) is connected to the first end of the 7 th lead (1027), and the second end of the 2 nd lead (1022) is an end from which current flows;

in said 2 nd coil (1012), a first end of said 3 rd conductive wire (1023) is an end into which a current flows, a second end of said 3 rd conductive wire (1023) is connected to a first end of said 6 th conductive wire (1026), a second end of said 6 th conductive wire (1026) is connected to a first end of said 4 th conductive wire (1024), a second end of said 4 th conductive wire (1024) is connected to a first end of said 5 th conductive wire (1025), and a second end of said 4 th conductive wire (1024) is an end from which a current flows;

in the 3 rd coil (1013), a first end of the 16 th wire (10216) is an end into which current flows, a second end of the 16 th wire (10216) is connected to a first end of the 9 th wire (1029), a second end of the 9 th wire (1029) is connected to a first end of the 15 th wire (10215), a second end of the 15 th wire (10215) is connected to a first end of the 10 th wire (10210), and a second end of the 10 th wire (10210) is an end from which current flows;

in the 4 th coil (1014), a first end of the 14 th conducting wire (10214) is an end into which current flows, a second end of the 14 th conducting wire (10214) is connected to a first end of the 11 th conducting wire (10211), a second end of the 11 th conducting wire (10211) is connected to a first end of the 13 th conducting wire (10213), a second end of the 13 th conducting wire (10213) is connected to a first end of the 12 th conducting wire (10212), and a second end of the 13 th conducting wire (10213) is an end from which current flows.

8. An autotransformer (20), comprising: the regulating winding (10) according to any of claims 1 to 7, said transformer further comprising a common coil (201), a series coil (202) and a core (203).