JP2020021872A - Mold type static induction device - Google Patents

Abstract

To suppress damage to a connection conductor even when vibration is applied to the connection conductor due to transportation or the like.SOLUTION: A mold type static induction device 10 includes a device content 20 that has windings 22 and 23 and an iron core 21 passed through the center of the windings 22 and 23, and in which the surfaces of the windings 22 and 23 are covered with an insulating member, a container 30 that accommodates the device content 20, bushings 51 and 52 provided on the ceiling of the container 30, a first connection conductor 61 in which the surface is covered with an insulating member, that has rigidity, is fixed so as to be relatively immovable with respect to the container 30, extends vertically in the container, and is electrically connected to the bushing 51 at the upper end, and a second connection conductor 62 that electrically connects the winding 22 and the first connection conductor 61 with the surface covered with an insulating member.SELECTED DRAWING: Figure 1

Description

  Embodiments of the present invention relate to a molded stationary induction device.

  2. Description of the Related Art Conventionally, there has been known a molded stationary induction device in which insulation performance is secured by molding the surface of a winding with an insulating member such as a resin. Such a molded static induction device can be applied to a higher voltage by storing the molded winding in a container and filling the container with dry air or the like.

  The molded stationary induction device in which the winding thus molded is stored in the container is provided with a bushing and a connection conductor corresponding to each winding in order to electrically connect the outer wire to the winding in the container. . The bushing is provided on a ceiling portion of the container and penetrates the ceiling portion. The outer wire is electrically connected to the bushing outside the container, and the connection conductor electrically connects the winding and the bushing inside the container. Thereby, the winding of each phase is electrically connected to the external line via the connection conductor and the bushing.

  In the molded stationary induction device having such a configuration, it is necessary to ensure insulation performance for the connection conductor, and therefore, the outer surface of the connection conductor is covered with an insulating member. However, for example, when a molded stationary induction device is transported from a manufacturing factory of the induction device to an installation location and installed, it is inevitable that vibration is applied to the molded stationary induction device. Then, when vibration is applied to the molded stationary induction device during transportation and installation, the vibration causes the connection conductor inside the container to swing and come into contact with other components, and as a result, an insulating member that covers the outside of the connection conductor Could be damaged.

JP-A-2005-225894

  In view of the above, there is provided a molded stationary induction device capable of suppressing damage to a connection conductor even when vibration is applied to the connection conductor due to conveyance or the like.

  The molded stationary induction device of the embodiment includes a device having a winding and an iron core passed through the center of the winding and having the surface of the winding covered with an insulating member, and accommodating each of the device contents. Container, a bushing provided on the ceiling portion of the container, and a surface covered with an insulating member, having rigidity, extending vertically in the container, and an upper end thereof is electrically connected to the bushing. A first connection conductor, and a second connection conductor having a surface covered with an insulating member and electrically connecting the winding and the first connection conductor.

FIG. 1 shows a schematic configuration of a molded stationary induction device according to an embodiment, and is a longitudinal sectional side view showing a part of the device in a partially broken manner. 1 is a plan view showing a schematic configuration of a molded stationary induction device according to an embodiment, in which a container is partially cut away. FIG. 2 is a vertical cross-sectional front view showing a schematic configuration of a molded stationary induction device according to an embodiment, taken along line X3-X3 in FIG. 2.

Hereinafter, an embodiment will be described with reference to the drawings.
The molded transformer 10 shown in FIGS. 1 to 3 is an example of an application example of a molded stationary induction device, and is used, for example, in an electric power system or a power receiving and transforming facility. In the case of the present embodiment, the molded transformer 10 is a three-phase transformer having U-phase, V-phase, and W-phase windings. In addition, the mold transformer 10 is not limited to a three-phase transformer.

  The mold transformer 10 includes an apparatus content 20, a container 30, a heat exchanger 40, bushings 51, 52, and connection conductors 61, 62, 63. The equipment contents 20 are provided corresponding to each phase of the mold transformer 10. For example, in the present embodiment, since the mold transformer 10 is a three-phase transformer having a U phase, a V phase, and a W phase, as shown in FIG. It has three corresponding device contents 20.

  The device contents 20 each include an iron core 21, a high-voltage side winding 22, a low-voltage side winding 23, and a spacer 24. The high-voltage side winding 22 functions as a primary-side winding to which high-voltage power is input when the molded transformer 10 is applied to, for example, a power system. The low-voltage side winding 23 functions as a secondary-side winding that outputs low-voltage power when the molded transformer 10 is applied to, for example, a power system.

  The surfaces of the high-voltage side winding 22 and the low-voltage side winding 23 are each covered with an insulating member such as a resin. That is, the surfaces of the high-voltage side winding 22 and the low-voltage side winding 23 are molded with an insulating member such as a resin having electrical insulation. Each of the high-voltage side winding 22 and the low-voltage side winding 23 has a core 21 passed through the center thereof to form a coil. In this case, the high voltage side winding 22 is provided on the outer peripheral side of the low voltage side winding 23.

  The cores 21 of the respective phases have a common upper yoke 211 and a lower yoke 212, and the upper end and the lower end of each core 21 are interconnected by the upper yoke 211 and the lower yoke 212, respectively. The lower yoke 212 has a lower end supported and fixed to the bottom of the container 30. Therefore, even when vibration is applied to the container 30, at least the lower end of the iron core 21 is unlikely to move relatively to the container 30. That is, at least the lower end of the device content 20 is hard to move relatively to the container 30.

  The spacer 24 is provided between the high-voltage side winding 22 and the low-voltage side winding 23. That is, the spacer 24 is provided on the inner peripheral side of the high-voltage side winding 22 and on the outer peripheral side of the low-voltage side winding 23. The spacer 24 is formed in a wave shape over the entire circumference of the high-voltage side winding 22 and the low-voltage side winding 23. A space 25 is formed between the high-voltage side winding 22 and the low-voltage side winding 23 by the spacer 24 to secure a space for flowing the cooling gas, and to provide a space between the high-voltage side winding 22 and the low-voltage side winding 23. The required insulation strength between them is secured. The spacer 24 is not limited to a corrugated shape as long as it has a shape capable of securing an insulating strength between the high-voltage side winding 22 and the low-voltage side winding 23 and a space for cooling.

  The container 30 forms an outer shell of the mold transformer 10, and is mainly configured of a metal housing such as a steel plate. The container 30 is formed in an airtight box shape. The device contents 20 are housed inside a container 30. In the case of the present embodiment, the three device contents 20 corresponding to each of the three phases are arranged in a straight line at equal intervals in the container 30 as shown in FIG. For this reason, the container 30 is formed in a shape that is long in one direction as a whole, for example, a box shape that is rectangular in plan view.

  In this case, the adjacent device contents 20 and the device content 20 and the inner wall surface of the container 30 are separated from each other. As a result, gaps 301 and 302 are secured between the adjacent device contents 20 and between the device contents 20 and the inner wall surface of the container 30, respectively. The gaps 301 and 302 secure a space for flowing the cooling gas, and secure necessary insulation strength between the contents 20 of the devices and between the contents 20 of the devices and the inner wall of the container 30.

  Further, the container 30 has an upper connection duct 31 and a lower connection duct 32 as shown in FIG. The upper connection duct 31 and the lower connection duct 32 connect the inside of the container 30 and the heat exchanger 40. That is, the inside of the container 30 and the heat exchanger 40 communicate with each other through the connection ducts 31 and 32. In this case, the upper connection duct 31 is provided above the container 30, specifically, above the upper ends of the windings 22 and 23. The lower connection duct 32 is provided below the upper connection duct 31 and below the container 30, specifically, below the lower ends of the windings 22 and 23.

  The inside of the container 30 is a sealed space in which airtightness is maintained. In this case, the container 30 is filled with dry air or the like having a pressure higher than the atmospheric pressure. The dielectric strength of air is approximately proportional to its absolute pressure. Therefore, by filling the container 30 with dry air having a pressure higher than the atmospheric pressure, the mold transformer 10 can obtain a higher dielectric strength than in the case where the equipment contents 20 are installed at the atmospheric pressure. .

  The heat exchangers 40 are respectively provided on both outer sides in the longitudinal direction of the container 30, and communicate with the inside of the container 30 via the upper connection duct 31 and the lower connection duct 32. The heat exchanger 40 has a function of radiating the heat generated by the operation of the device contents 20 to the atmosphere. When the gas in the container 30 is heated by the heat generated in the device content 20, the gaps 301 and 302 formed outside the device content 20 and the device content 20 as indicated by the white arrows in FIG. The container 30 rises inside the container 30 through the gap 25 formed therein.

  The gas that has risen in the container 30 flows into the heat exchanger 40 through the upper connection duct 31, and the heat of the gas is radiated to the atmosphere by the action of the heat exchanger 40. Thereafter, the gas whose heat has been radiated and whose temperature has dropped flows into the container 30 from the lower connection duct 32, and rises again through the gaps 301 and 302 and the gap 25. In this way, a gas flow naturally circulating in the container 30 is generated, and the contents 20 of each device are naturally cooled by the gas flow. Note that a configuration may be adopted in which a blower is provided in the connection ducts 31 and 32 and the gas in the container 30 is forcibly circulated. According to this, the cooling efficiency in the mold transformer 10 can be further improved.

  As shown in FIGS. 1 and 2, the molded transformer 10 includes a high-voltage side bushing 51, a low-voltage side bushing 52, a high-voltage side first connection conductor 61, and a high-voltage side second connection corresponding to each device content 20. A conductor 62 and a low-voltage connection conductor 63 are provided. The bushings 51 and 52 have a function of electrically connecting the windings 22 and 23 and external lines 91 and 92 such as a power system and a power receiving and transforming facility with insulation being ensured with respect to the container 30. The bushings 51 and 52 of each phase correspond to the equipment contents 20 of each phase, and are provided through the ceiling 35 of the container 30. Each of the bushings 51 and 52 has one end exposed to the outside of the container 30 and the other end inserted into the container 30. In this case, the high-pressure side bushing 51 corresponds to the high-voltage side winding 22 of the contents 20 of each device. The low-voltage side bushing 52 corresponds to the low-voltage side winding 23 of each device content 20.

  As shown in FIG. 2, the high-pressure side bushings 51 and the low-pressure side bushings 52 are arranged in a straight line at equal intervals along the longitudinal direction of the container 30. In other words, the high-pressure side bushings 51 and the low-pressure side bushings 52 are arranged in a line at regular intervals along the arrangement of the device contents 20 of each phase. In this case, the intervals between the arrangements of the high-pressure side bushings 51 are smaller than, for example, the arrangement intervals between the contents 20 of the respective devices. That is, each high-pressure side bushing 51 is gathered and arranged at one place. In addition, the arrangement interval of each low-pressure side bushing 52 is also equal to the arrangement interval of each high-pressure side bushing 51, for example.

  In this case, each high-pressure side bushing 51 is provided on the ceiling 35 of the container 30 at the center in the width direction of the container 30 and closer to one side in the width direction with respect to the center of the contents 20 of each device. Further, each low-pressure side bushing 52 is provided on the ceiling 35 of the container 30 at the center in the width direction of the container 30 and closer to the other side with respect to the center of the contents 20 of each device, that is, closer to the side opposite to the high-pressure side bushing 51. Have been.

  As shown in FIG. 2, at least the high-pressure side bushing 51 of each of the bushings 51 and 52 is provided at a position that does not overlap any of the corresponding device contents 20 and the other device contents 20 in plan view. In the case of the present embodiment, each high-pressure side bushing 51 is arranged to be shifted to one side in the width direction of the container 30 with respect to each corresponding device content 20. Further, the low-voltage side bushings 52 are provided at positions overlapping the corresponding device contents 20 in plan view, that is, above the device contents 20 having the low-voltage windings 23 to which they are connected.

  As shown in FIGS. 1 and 2, each high-pressure side bushing 51 is connected to an external line 91 on the high-voltage side of the power system or the substation equipment outside the container 30, and is connected to a high-voltage side connection conductor 61 inside the container 30. It is connected to the. Similarly to the high-side bushing 51, each low-voltage side bushing 52 is connected to the low-voltage side external line 92 of the power system or the power receiving and transforming equipment outside the container 30, and the low-voltage side connection conductor 63 inside the container 30. It is connected to the. As a result, the contents 20 of each device in the container 30 are electrically connected to the external lines 91 and 92 in a state where insulation from the container 30 is ensured.

  The high voltage side first connection conductor 61 and the high voltage side second connection conductor 62 electrically connect the high voltage side winding 22 and the high voltage side bushing 51, and function as a first connection conductor and a second connection conductor, respectively. I do. As shown in FIG. 1, the high-voltage-side connection conductor 61 includes a conductor 611 made of a conductive member, and an insulating member 612 such as a resin that covers the outer surface of the conductor 611. Have been. That is, the outer surface of the conductor portion 611 of the high-voltage side connection conductor 61 is molded with an insulating member such as a resin. The conductor portion 611 of the high-voltage-side first connection conductor 61 is formed of a non-bendable rigid body such as a metal bar or a metal plate. That is, the high-voltage-side first connection conductor 61 is formed in the container 30 into a column shape or a wall shape having rigidity that cannot be bent.

  As shown in FIG. 1, the high-voltage first connection conductor 61 is provided immediately below the corresponding high-pressure bushing 51 in the container 30, and is provided so as to extend in the vertical direction, that is, in the vertical direction. In this case, each high-voltage-side first connection conductor 61 is provided around each corresponding device content 20. Further, each of the high-voltage-side first connection conductors 61 is arranged so as to be shifted to one side in the width direction of the container 30 with respect to the corresponding device contents 20. The lower end of the high voltage side first connection conductor 61 is supported and fixed to the bottom of the container 30 and is covered with an insulating member 612 to ensure insulation from the container 30.

  The upper end of the first high-voltage connection conductor 61 is electrically connected to the corresponding high-voltage bushing 51 and supported by the ceiling 35 of the container 30 via the high-pressure bushing 51 or directly. Fixed. Thus, the high-voltage-side first connection conductor 61 is fixed so as to be relatively immovable with respect to the container 30. For this reason, even when vibration is applied to the container 30, the high voltage side first connection conductor 61 is unlikely to sway relative to the container 30.

  One end of the high voltage side second connection conductor 62 is electrically connected to the high voltage side winding 22, and the other end is electrically connected to the high voltage side first connection conductor 61. The side winding 22 and the first connection conductor 61 are electrically connected. In this case, one end of the high voltage side second connection conductor 62 is electrically connected to the high voltage side winding 22 at a portion below the vertical center of the high voltage side winding 22. That is, the connection portion between the high-voltage side second connection conductor 62 and the high-voltage side winding 22 is located below the center of the high-voltage side winding 22 in the vertical direction. In the case of the present embodiment, the connection portion between the high voltage side second connection conductor 62 and the high voltage side winding 22 is located near the lower end of the high voltage side winding 22.

  Further, the other end of the high-voltage side second connection conductor 62 is, similarly to the one end described above, a high-voltage side first connection conductor at a lower portion than the vertical center of the high-voltage side first connection conductor 61. 61 are electrically connected. That is, the connection portion between the high-voltage side first connection conductor 61 and the high-voltage side second connection conductor 62 is located below the center of the high-voltage side first connection conductor 61 in the vertical direction. In the case of the present embodiment, the connection portion between the high voltage side second connection conductor 62 and the high voltage side winding 22 is located near the lower end of the high voltage side winding 22.

  The high-voltage-side second connection conductor 62 is disposed horizontally between the high-voltage-side winding 22 of the device body 20 and the high-voltage-side first connection conductor 61. That is, the high voltage side second connection conductor 62 extends in the horizontal direction from the connection portion with the high voltage side winding 22 toward the high voltage side first connection conductor 61 side. Thereby, the high voltage side second connection conductor 62 connects the high voltage side first connection conductor 61 and the equipment content 20, that is, the high voltage side winding 22, with the shortest distance.

  The high-voltage-side second connection conductor 62 is configured to include a conductive portion 621 having conductivity and an insulating member 622 such as a resin that covers an outer surface of the conductive portion 621. That is, the outer surface of the conductor portion 621 is also molded with the insulating member 622 such as a resin. The conductor portion 621 of the high-voltage-side second connection conductor 62 is formed by, for example, twisting a plurality of conductive wires. In this case, the high-voltage-side second connection conductor 62 may be more flexible and bendable than the high-voltage-side first connection conductor 61.

  In this case, a higher current flows through the high-voltage connection conductors 61 and 62 than the low-voltage connection conductor 63. Therefore, the diameter of each of the conductors 611 and 621 of the high-voltage connection conductors 61 and 62 is larger than the diameter of the conductor of the low-voltage connection conductor 63, and the insulating members 612 and 622 of the high-voltage connection conductors 61 and 62. Are thicker than the insulating member of the low voltage side connection conductor 63. For this reason, both the high-voltage connection conductors 61 and 62 have higher rigidity than the low-voltage connection conductor 63.

  In the case of the present embodiment, the high-voltage-side first connection conductor 61 does not have flexibility and is configured as a rigid body that cannot be bent. Further, the high voltage side second connection conductor 62 is more flexible than the high voltage side first connection conductor 61, but has higher rigidity than the low voltage side connection conductor 63. In the case of the present embodiment, the high-voltage-side second connection conductor 62 has such a rigidity that it cannot be easily bent by an operator's force, and the insulating member 622 is damaged if it is forcibly bent. ing.

  On the other hand, the low voltage side connection conductor 63 does not flow as much current as the high voltage side connection conductors 61 and 62. Therefore, the diameter of the conductor of the low-voltage connection conductor 63 can be made smaller than the diameter of the conductors 611 and 621 of the high-voltage connection conductors 61 and 62. It can be thinner than the insulating members 612, 622 of the side connection conductors 61, 62. For this reason, the low-voltage connection conductor 63 can be relatively more flexible than the high-voltage connection conductors 61 and 62.

  According to the embodiment described above, the mold transformer 10 includes the equipment contents 20, the container 30, the high-pressure side bushing 51 and the low-pressure side bushing 52, the high-pressure side first connection conductor 61, and the high-pressure side second connection conductor. 62. The device content 20 is configured by winding a high-voltage side winding 22 and a low-voltage side winding 23 around an iron core 21. The surfaces of these windings 22 and 23 are covered with an insulating member. The container 30 accommodates the device contents 20. The high-pressure side bushing 61 and the low-pressure side bushing 62 are provided on the ceiling 35 of the container 30. The high-voltage side first connection conductor 61 has a surface covered with an insulating member 612 and has rigidity, and is fixed so as to be relatively immovable with respect to the container 30. The high voltage side first connection conductor 61 extends vertically in the container 30 and has an upper end electrically connected to the high voltage side bushing 51. The high voltage side second connection conductor 62 has a surface covered with an insulating member 622, and electrically connects the high voltage side winding 22 and the first connection conductor 61. In this case, the high voltage side first connection conductor 61 and the high voltage side second connection conductor 62 function as a first connection conductor and a second connection conductor, respectively.

  That is, according to the configuration of the above embodiment, the high-voltage side bushing 51 and the high-voltage side winding 22 are not electrically connected by one connection conductor, and the high-voltage first connection conductor 61 and the high-voltage side It is electrically connected to the second connection conductor 62. In this case, the high-pressure side first connection conductor 61 is connected to the high-pressure side bushing 51, and the high-pressure side first connection conductor 61 has rigidity and is relatively immovable with respect to the container 30. So that it is fixed. The high-voltage side second connection conductor 62 is connected between the device contents 20, that is, the high-voltage side winding 22 and the high-voltage side first connection conductor 61.

  According to this, first, regarding the high voltage side first connection conductor 61, the high voltage side first connection conductor 61 has a rigid body and is fixed so as to be relatively immovable with respect to the container 30. For this reason, even when vibration is applied to the mold transformer 10, the high-voltage-side first connection conductor 61 is relatively unlikely to swing with respect to the container 30.

  Further, looking at the high voltage side second connection conductor 62 that is more likely to swing than the high voltage side first connection conductor 61, the high voltage side second connection conductor 62 is connected to the high voltage side first connection conductor 61 located near the device content 20. Have been. Thereby, the length of the high-pressure side second connection conductor 62 is made as short as possible as compared with the case where the high-pressure side second connection conductor 62 is directly extended to the high-pressure side bushing 51 provided on the ceiling 35 of the container 30. It can be. Accordingly, even when vibration is applied to the molded transformer 10, the high-voltage-side second connection conductor 62 is less likely to swing relative to the container 30.

  With such a configuration, even when vibration is applied to the mold transformer 10 during, for example, transportation or installation work, the high-voltage first connection conductor 61 and the high-voltage second connection conductor 62 are less likely to swing, and Even if it sways, the sway width can be made as small as possible. As a result, it is possible to prevent the insulating members 612 and 622 of the high-voltage connection conductors 61 and 62 from being damaged due to the swinging of the high-voltage connection conductors 61 and 62 and the contact with the contents 20 of the device.

  Here, as shown in FIG. 1 and the like, the lower end of the iron core 21 is generally connected to the container 30, but the upper end of the iron core 21 is not connected to the container 30 in the equipment contents 20 of the molded transformer 10. Often. In this configuration, when vibration is applied to the mold transformer 10, there is a possibility that the equipment contents 20 swing about the lower end of the iron core 21 as a fulcrum. Then, the swing width increases toward the upper side.

  Therefore, in the present embodiment, one end of the high-voltage side second connection conductor 62 is electrically connected to the high-voltage side winding 22 at a portion below the vertical center of the high-voltage side winding 22. The end is electrically connected to the high voltage side first connection conductor 61 at a portion below the vertical center of the high voltage side first connection conductor 61. That is, the high-voltage-side second connection conductor 62 is connected to the lower portion of each of the high-voltage-side winding 22 and the high-voltage-side first connection conductor 61.

  According to this, the high-voltage-side second connection conductor 62 is connected to the high-voltage-side winding 22 and the high-voltage-side first connection conductor 61 at a lower portion having a small swing width. Therefore, even when vibrations are applied to the mold transformer 10 and the equipment content 20 shakes, the influence of the shaking on the high voltage side second connection conductor 62 can be minimized. As a result, breakage of the insulating members 612 and 622 of the high-voltage side connection conductors 61 and 62 due to the swinging of the high-voltage side connection portions 61 and 62 and the contact with the equipment contents 20 can be further effectively suppressed. .

  Further, the high voltage side second connection conductor 62 extends in the horizontal direction. According to this, the distance between the high voltage side first connection conductor 61 and the device content 20, that is, the high voltage side winding 22 can be made the shortest distance. That is, according to this, the length dimension of the high voltage side second connection conductor 62 can be minimized. According to this, it is possible to further reduce the swing width when the high voltage side second connection conductor 62 swings, and as a result, the high voltage side second connection conductor 62 swings and comes into contact with the equipment contents 20 to cause a high voltage. Breakage of the insulating member 622 of the side second connection conductor 62 can be more effectively suppressed.

The connection structure between the high-voltage side winding 22 and the high-voltage side bushing 51 described above can be applied to the connection structure between the low-voltage side winding 23 and the low-voltage side bushing 52. That is, in the above-described embodiment, the low-voltage side winding 23 and the low-voltage side bushing 52 are simply connected by one low-voltage side connection conductor 63. However, instead of this configuration, the low-voltage side winding 23 and the low-voltage side bushing 52 are connected. The bushing 52 may be connected to the high voltage side first connection conductor 61 and the high voltage side second connection conductor 62 by the same low voltage side first connection conductor and low voltage side second connection conductor.
Further, in the above embodiment, the molded transformer is described as an example of the molded stationary induction device. However, the present invention is not limited to this, and a molded reactor may be used.

  As mentioned above, although one embodiment of the present invention was described, this embodiment is given as an example and is not intended to limit the scope of the invention. This embodiment can be implemented in other various forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. This embodiment and its modifications are included in the invention described in the claims and equivalents thereof, as are the contents included in the scope and the gist of the invention.

  In the drawings, reference numeral 10 denotes a molded transformer (molded stationary induction device), reference numeral 20 denotes the contents of the device, reference numeral 21 denotes an iron core, reference numeral 22 denotes a high-voltage side winding (winding), reference numeral 23 denotes a low-voltage side winding (winding), and reference numeral 30 denotes a container. , 35 are a ceiling portion, 51 is a high voltage side bushing (bushing), 52 is a low voltage side bushing (bushing), 61 is a high voltage side first connection conductor (first connection conductor), 612 is an insulating member, and 62 is a high voltage side second connection conductor. A connection conductor (second connection conductor) 622 indicates an insulating member.

Claims (3)

A device having a winding and an iron core passed through the center of the winding and having the surface of the winding covered with an insulating member,
A container for accommodating the contents of the device;
A bushing provided on the ceiling of the container,
The surface is covered with an insulating member and has rigidity, is fixed so as to be relatively immovable with respect to the container, extends vertically in the container, and has an upper end electrically connected to the bushing. A first connection conductor,
A second connection conductor having a surface covered with an insulating member and electrically connecting the winding and the first connection conductor;
Molded stationary induction equipment comprising: One end of the second connection conductor is electrically connected to the winding at a portion below the center of the winding in the vertical direction, and the other end is connected to the center of the first connection conductor in the vertical direction. A lower portion is electrically connected to the first connection conductor,
The molded stationary induction device according to claim 1. The second connection conductor extends in a horizontal direction,
The molded stationary induction device according to claim 1.

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