CN114300245B - Transformer system - Google Patents
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- CN114300245B CN114300245B CN202111654653.8A CN202111654653A CN114300245B CN 114300245 B CN114300245 B CN 114300245B CN 202111654653 A CN202111654653 A CN 202111654653A CN 114300245 B CN114300245 B CN 114300245B
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Abstract
The application discloses a transformer system, which comprises at least two transformers, a first wiring assembly and a second wiring assembly, wherein primary windings of the transformers are electrically connected to the first wiring assembly in parallel, and secondary windings of the transformers are electrically connected to the second wiring assembly in parallel, so that the transformers are electrically connected in parallel. The transformer system can adapt to the requirements of various power grid operation conditions by reducing or increasing the parallel connection quantity of the transformers, and improves the utilization rate of the transformers and the utilization rate of electric energy; when the transportation condition is limited, the transformer system can transport a single transformer to an operation site independently and assemble the single transformer to form the transformer system, so that adverse effects such as transformer loss and magnetic leakage can not occur, and the transportation difficulty of the transformer is effectively reduced; each transformer can independently operate without mutual influence, and when part of transformers are damaged, the rest transformers can still normally operate, so that the continuity and reliability of power supply of a power grid are ensured.
Description
Technical Field
The application relates to the technical field of transformers, in particular to a transformer system.
Background
The distribution transformer is an important component of a power distribution system of a high-rise building and an ultra-high-rise building, is suitable for the development and production of the distribution transformer of the high-rise building or the ultra-high-rise building, and is beneficial to promoting the economic development and urban construction. At present, the distribution transformer is applied to high-rise buildings or super high-rise buildings and mainly has the problem of vertically transporting upstairs. The vertical up-stairs transportation affecting the distribution transformer mainly has two factors, namely weight and volume, the weight and volume of the transformer are related to the capacity of the transformer, and the capacity of the transformer is determined by the number of power equipment.
The traditional transformer transportation scheme is to directly transport by using a conventional 2t goods lift, the transportation mode limits the capacity of the transformer not to exceed 400kVA, the capacity of the transformer is difficult to match with large-load equipment, and the power consumption requirement of a high-rise building or an ultra-high-rise building cannot be met. At present, most of conventional transformers are of a single structure, if the conventional 2t goods elevator is used for transportation after the transformers are disassembled, the conventional transformers are reassembled after going upstairs, and the assembled and disassembled transformers are assembled on site due to the increase of loss, magnetic leakage and noise, so that the operation risk of the transformers exists. If the transformer is transported upstairs in an outdoor transformer hoisting mode, the outer elevation of the building and the transformer are easily damaged due to serious equipment shaking in the hoisting process. Distribution transformers are important components in a power grid, and when the transformers fail and cannot operate, the whole power grid stops operating, and the continuity and reliability of power supply are seriously affected.
Disclosure of Invention
Based on this, it is necessary to provide a transformer system, which aims to solve the problem that the conventional transformer is difficult to vertically transport up stairs in high-rise buildings or super high-rise buildings.
The present application provides a transformer system comprising:
at least two transformers;
a first wiring assembly;
and the primary windings of the transformers are electrically connected to the first wiring assembly in parallel, and the secondary windings of the transformers are electrically connected to the second wiring assembly in parallel, so that the transformers are electrically connected in parallel.
The transformer system has the following advantages:
(1) The transformer system is characterized in that primary windings of all transformers are electrically connected to a first wiring assembly in parallel, and secondary windings of all transformers are electrically connected to a second wiring assembly in parallel, so that parallel connection of all transformers can be completed, and the electrical performance of all transformers after parallel connection is not different from that of a conventional single transformer product, namely the electrical performance of the transformer system is not different from that of the conventional single transformer product;
(2) The design capacity of the transformer is determined by the total number of the power equipment arranged in the building, and for the traditional transformer, in the early stage of the engineering of the high-rise building or the super high-rise building, as various power equipment are not fully arranged, the transformer is far from expected load operation, and the utilization rate of the transformer is low, so that waste is caused; for the transformer system, the output working capacity of the transformer system can be reduced by reducing the parallel number of the transformers at the early stage of the project so as to be suitable for the required capacity of smaller power equipment at the early stage of the project, when the power equipment is increased at the later stage of the project, the output working capacity of the transformer system can be increased by increasing the parallel number of the transformers so as to meet the increased required capacity of the power equipment, and thus, the transformer system can change the capacity at any time so as to be suitable for the requirements of various power grid operation conditions by reducing or increasing the parallel number of the transformers in the transformer system, and can improve the utilization rate and the electric energy utilization rate of each transformer, thereby saving energy and protecting the environment;
(3) Under the condition that the transportation condition is limited, the transformer system can transport a single transformer to an operation site, then the primary windings of the transformers are electrically connected to the first wiring assembly in parallel, and the secondary windings of the transformers are electrically connected to the second wiring assembly in parallel to complete the assembly of the transformer system, and the assembly of the transformer system is completed through the simple electrical connection between the first wiring assembly and the primary windings of the transformers and between the second wiring assembly and the secondary windings of the transformers, so that the performance of the transformers is not affected in the electrical connection process, namely the adverse effects of transformer loss, magnetic leakage and the like are not caused. Furthermore, the transformer system can also carry out integral transportation after a plurality of transformers are assembled;
(4) Because each transformer is electrically connected in parallel, each transformer can independently operate without mutual influence, namely when part of transformers in a transformer system are damaged, the rest transformers can still keep normal operation, the continuity and reliability of power supply of a power grid are ensured, and the probability of economic loss caused by transformer faults is greatly reduced.
The technical scheme of the application is further described as follows:
in one embodiment, the first wiring assembly includes a first wiring member equal in number to the number of phases of the primary windings of the transformer, one and the same of the primary windings of each of the transformers being electrically connected in parallel with each other to the same first wiring member.
In one embodiment, the second wiring assembly includes a second wiring member equal in number to the number of phases of the secondary windings of the transformer, one and the same of the secondary windings of each of the transformers being electrically connected in parallel with each other to the same second wiring member.
In one embodiment, one end of the first wiring member is provided with a first bus connection port, the first bus connection port is used for being electrically connected with external equipment, and the other end of the first wiring member is used for being electrically connected with one and the same phase of the primary windings of each transformer; and/or
One end of the second wiring piece is provided with a second total wiring port, the second total wiring port is used for being electrically connected with external equipment, and the other end of the second wiring piece is used for being electrically connected with one and the same phase of the secondary windings of each transformer.
In one embodiment, the primary winding of the transformer adopts a Y-junction method or a delta-junction method, the secondary winding of the transformer adopts a Y-junction method, the primary winding of the transformer is a high-voltage winding and has an a-phase, a B-phase and a C-phase, the first wiring assembly comprises three first wiring pieces, and one of the a-phase, the B-phase or the C-phase of the primary winding of each transformer is electrically connected to the same first wiring piece in parallel;
the secondary winding of the transformer is a low-voltage winding and is provided with an a phase, a b phase, a c phase and a 0 phase, the second wiring assembly comprises four second wiring pieces, and one of the a phase, the b phase, the c phase or the 0 phase of the secondary winding of each transformer is electrically connected with the same second wiring piece in parallel.
In one embodiment, the primary winding of the transformer and the secondary winding of the transformer are both in delta connection, the primary winding of the transformer is a high-voltage winding and has an a phase, a B phase and a C phase, the first wiring assembly comprises three first wiring pieces, and one of the a phase, the B phase or the C phase of the primary winding of each transformer is electrically connected to the same first wiring piece in parallel;
the secondary winding of the transformer is a low-voltage winding and is provided with an a phase, a b phase and a c phase, the second wiring assembly comprises three second wiring pieces, and one of the a phase, the b phase or the c phase of the secondary winding of each transformer is electrically connected with the same second wiring piece in parallel.
In one embodiment, the transformer further comprises an iron core assembly, the iron core assembly is formed by splicing three frame-shaped iron cores, two adjacent frame-shaped iron cores are spliced at the circumferential side parts to form an iron core stem, and the primary winding of the transformer and the same-phase winding of the secondary winding of the transformer are wound on one iron core stem at the same time.
In one embodiment, the transformer further comprises a clamp assembly, the clamp assembly comprises an upper clamp and a lower clamp, the upper clamp is formed with an upper installation space, the lower clamp is formed with a lower installation space, one end of the iron core assembly extends into the upper installation space, and the other end of the iron core assembly extends into the lower installation space so that the clamp assembly can fix the iron core assembly.
In one embodiment, the transformer further comprises a base connected to a side of the lower clip member remote from the core assembly.
In one embodiment, all the transformers are arranged and connected along the height direction of the transformer system, and the transformer system further comprises at least one connecting piece, and two adjacent transformers are connected with each other through the at least one connecting piece.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a transformer system according to an embodiment of the present application;
FIG. 2 is a schematic perspective view of a transformer system rotated by a certain angle according to an embodiment of the present application;
fig. 3 is a schematic perspective view of a transformer in the transformer system according to an embodiment of the present application;
fig. 4 is a schematic perspective view of a transformer in the transformer system according to an embodiment of the present application;
FIG. 5 is a schematic diagram of the wiring of the low voltage windings of the individual transformers in the transformer system electrically connected in parallel with each other in accordance with one embodiment of the present application;
fig. 6 is a schematic diagram of the wiring of the high voltage windings of the individual transformers in the transformer system electrically connected in parallel with each other in accordance with one embodiment of the present application.
Reference numerals illustrate:
10. a transformer system; 100. a first wiring assembly; 110. a first wire connecting piece; 1101. a phase a first wire member; 1102. a phase B first wiring member; 1103. a phase C first wiring member; 111. a first bus port; 200. a second wiring assembly; 210. a second wire connecting piece; 2101. a phase a second wiring member; 2102. b-phase second wiring member; 2103. c phase second wiring member; 2104. a phase 0 second wire member; 211. a second total wiring port;
20. a transformer; 201. a first connection piece; 202. tail lugs; 203. a main lead; 204. an iron core assembly; 2040. a frame-shaped iron core; 205. a clip assembly; 2051. an upper clamping piece; 2052. a lower clamping piece; 206. and (5) a base.
Detailed Description
In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Referring to fig. 1 to 4, a transformer system 10 of an embodiment includes at least two transformers 20, a first connection assembly 100 and a second connection assembly 200, wherein primary windings of the transformers 20 are electrically connected to the first connection assembly 100 in parallel, and secondary windings of the transformers 20 are electrically connected to the second connection assembly 200 in parallel, so that the transformers 20 are electrically connected in parallel.
The transformer system 10 has the following advantages:
(1) The transformer system 10 connects primary windings of each transformer 20 to the first wiring assembly 100 in parallel electrically, and connects secondary windings of each transformer 20 to the second wiring assembly 200 in parallel electrically, so that parallel connection of each transformer 20 can be completed, and the electrical performance of each transformer 20 after parallel connection is not different from that of a conventional single transformer 20 product, namely, the electrical performance of the transformer system 10 is not different from that of a conventional single transformer 20 product;
(2) The design capacity of the transformer 20 is determined by the total number of the electric devices equipped in the building, for the traditional transformer 20, in the early stage of the engineering of the high-rise building or the super high-rise building, as various electric devices are not equipped, the equipped transformer 20 is far from expected load operation, the utilization rate of the transformer 20 is low, and waste is caused; for the transformer system 10, the output working capacity of the transformer system 10 can be reduced by reducing the parallel number of the transformers 20 in the early stage of engineering so as to be suitable for the required capacity of smaller power equipment in the early stage of engineering, when the power equipment is increased in the later stage of engineering, the output working capacity of the transformer system 10 can be increased by increasing the parallel number of the transformers 20 so as to meet the increased required capacity of the power equipment, and thus, the transformer system 10 can change the capacity at any time to be suitable for the requirements of various power grid operation conditions by reducing or increasing the parallel number of the transformers 20 in the transformer system 10, so that the utilization rate and the electric energy utilization rate of each transformer 20 can be improved, and the energy conservation and the environmental protection are realized;
(3) Under the condition that the transportation condition is limited, the transformer system 10 can transport the single transformer 20 to the operation site separately, then electrically connect the primary windings of each transformer 20 in parallel to the first wiring assembly 100, and electrically connect the secondary windings of each transformer 20 in parallel to the second wiring assembly 200 to complete the assembly of the transformer system 10, but the assembly of the transformer system 10 can be completed by simply electrically connecting the first wiring assembly 100 with the primary windings of the transformers 20 and the second wiring assembly 200 with the secondary windings of the transformers 20, in the process of the electrical connection, the performance of the transformers 20 is not affected, namely, the adverse effects of the transformer 20 such as loss and magnetic leakage are not generated, compared with the traditional transformers 20, the transformer system 10 can effectively reduce the transportation difficulty of the transformers 20, can be suitable for limiting more transportation environments such as high-rise and super-rise buildings, can not damage the performance of the transformers 20, and reduce the normal operation probability of the power grid due to transportation faults; further, the transformer system 10 may also be configured to integrally transport the plurality of transformers 20 after assembly;
(4) Because each transformer 20 is electrically connected in parallel, each transformer 20 can independently operate without mutual influence, namely when part of transformers 20 in the transformer system 10 are damaged, the rest transformers 20 can still keep normal operation, the continuity and reliability of power supply of a power grid are ensured, and the probability of economic loss caused by the faults of the transformers 20 is greatly reduced.
Alternatively, all transformers 20 in the transformer system 10 may be selected from existing types of transformers, i.e., the iron cores and winding structures of all transformers 20 in the transformer system 10 are the same as those of the conventional transformers 20, without increasing the difficulty in production and installation of the transformer system 10.
Alternatively, all transformers 20 in transformer system 10 may be of the same winding tie group and the same construction.
Alternatively, all transformers 20 in the transformer system 10 may be identical transformers or may be different transformers from each other.
In some embodiments, referring to fig. 1-2, all transformers 20 are arranged and connected along the height direction (H direction shown in fig. 1-4) of the transformer system 10, and the transformer system 10 further includes at least one connecting member (not shown) through which two adjacent transformers 20 are connected to each other. Compared with the transformer products with the same capacity, the transformer system 10 has smaller occupied area by arranging and connecting all transformers 20 along the height direction of the transformer system 10; the connecting piece is used for connecting the adjacent two transformers 20 firmly. The connectors may be any type of connector available, such as bolts.
In some embodiments, referring to fig. 1 to 2, the first wiring assembly 100 includes first wiring members 110 equal to the number of phases of the primary windings of the transformers 20, wherein one and the same primary windings of each transformer 20 are electrically connected to the same first wiring member 110 in parallel to realize that the primary windings of each transformer 20 in the transformer system 10 are electrically connected in parallel to each other.
Alternatively, referring to fig. 1 to 2, one end of the first wire member 110 is provided with a first total wire port 111, the first total wire port 111 is used for being electrically connected to an external device, and the other end of the first wire member 110 is used for being electrically connected to one and the same phase of the primary windings of each transformer 20. In this way, the currents in the primary windings of the respective transformers 20 are collected to the first bus port 111, and then transferred to the external device through the first bus port 111.
In some embodiments, referring to fig. 1-2, the second connection assembly 200 includes a second connection member 210 equal to the number of phases of the secondary windings of the transformers 20, wherein one and the same of the secondary windings of each transformer 20 is electrically connected to the same second connection member 210 in parallel to achieve the parallel electrical connection of the secondary windings of each transformer 20 in the transformer system 10.
Optionally, referring to fig. 1 to 2, one end of the second connection member 210 is provided with a second total connection port 211, the second total connection port 211 is used for being electrically connected to an external device, and the other end of the second connection member 210 is used for being electrically connected to one and the same phase of the secondary windings of each transformer 20. Thus, the currents in the secondary windings of the respective transformers 20 are collected to the second total connection port 211, and then transferred to the external device through the second total connection port 211.
Alternatively, the first and second connection members 110 and 210 may be any existing conductive member. Preferably, the first and second connectors 110 and 210 are conductive copper bars.
It should be noted that, the primary winding of the transformer 20 and the secondary winding of the transformer 20 may be formed by various conventional wiring methods, the primary winding of the transformer 20 may be formed as a low voltage winding or a high voltage winding, and correspondingly, the secondary winding of the transformer 20 may be formed as a high voltage winding or a low voltage winding, the number of the first wiring members 110 corresponds to the number of phases of the primary winding of the transformer 20, and the number of the second wiring members 210 corresponds to the number of phases of the secondary winding of the transformer 20.
In some embodiments, referring to fig. 1 to 4, the primary winding of the transformer 20 adopts a Y-connection method or a delta-connection method, the secondary winding of the transformer 20 adopts a Y-connection method, the primary winding of the transformer 20 is a high-voltage winding and has a phase a, a phase B and a phase C, the first wiring assembly 100 comprises three first wiring members 110, and one of the phase a, the phase B or the phase C of the primary winding of each transformer 20 is electrically connected to the same first wiring member 110 in parallel;
the secondary winding of the transformer 20 is a low-voltage winding and has a phase a, b, c and 0, and the second wiring assembly 200 includes four second wiring members 210, and one of the a, b, c or 0 phases of the secondary winding of each transformer 20 is electrically connected to the same second wiring member 210 in parallel. In this way, it is possible to realize that the respective transformers 20 are electrically connected in parallel to each other when the primary windings of the transformers 20 are connected in a Y-shape or a delta-shape, and the secondary windings of the transformers 20 are connected in a Y-shape.
Preferably, referring to fig. 1 to 4, in some embodiments, the transformer system 10 is provided with two transformers 20, the two transformers 20 are arranged and connected along the height direction (H direction shown in fig. 1 to 4) of the transformer system 10, the two transformers 20 are respectively named as an upper transformer and a lower transformer, the distance between the upper transformer and the ground is greater than the distance between the lower transformer and the ground, the primary windings of each transformer 20 are all high-voltage windings and adopt Y-connection methods, and the secondary windings of each transformer 20 are all low-voltage windings and adopt Y-connection methods;
the high-voltage windings of each transformer 20 comprise an a-phase coil, a B-phase coil and a C-phase coil, the a-phase coil, the B-phase coil and the C-phase coil are provided with a head terminal (not shown) and a tail terminal (not shown), the wiring schematic diagram of the parallel connection of the high-voltage windings of the two transformers 20 is shown in fig. 6, wherein the head terminal of the a-phase coil, the head terminal of the B-phase coil and the head terminal of the C-phase coil of the upper transformer are respectively represented by X1, Y1 and Z1, the tail terminal of the a-phase coil of the upper transformer, the tail terminal of the B-phase coil and the tail terminal of the C-phase coil are respectively represented by A1, B1 and C1, the head terminal of the a-phase coil of the lower transformer, the head terminal of the B-phase coil and the head terminal of the C-phase coil are respectively represented by X2, Y2 and Z2, the tail terminal of the a-phase coil of the lower transformer, the tail terminal of the B-phase coil and the tail terminal of the C-phase coil are respectively represented by A2, B2 and C2, the tail terminal of the a-phase coil of the lower transformer 20 and the main terminal of the C-phase coil are respectively provided with A1 and tail terminal of the C-phase coil of the lower coil;
the first wiring assembly 100 includes three first wiring members 110, the three first wiring members 110 being a-phase first wiring member 1101, B-phase first wiring member 1102, and C-phase first wiring member 1103, respectively, the main leads 203 of the a-phase coils of each transformer 20 being electrically connected in parallel to a Xiang Di one wiring member 1101, the main leads 203 of the B-phase coils of each transformer 20 being electrically connected in parallel to the B-phase first wiring member 1102, the main leads 203 of the C-phase coils of each transformer 20 being electrically connected in parallel to the C-phase first wiring member 1103, thus realizing that the high-voltage windings of the upper transformer and the high-voltage windings of the lower transformer are electrically connected in parallel to each other;
the first total connection port 111 of the a-phase first connection 1101, the first total connection port 111 of the B-phase first connection 1102, and the first total connection port 111 of the C-phase first connection 1103 are respectively used for electrically connecting with respective corresponding external devices;
the low-voltage windings of each transformer 20 comprise an a-phase coil, a b-phase coil and a c-phase coil, the a-phase coil, the b-phase coil and the c-phase coil are provided with a first connecting piece 201 and a second connecting piece 202, a wiring schematic diagram of the parallel connection of the low-voltage windings of the two transformers 20 is shown in fig. 5, wherein the first connecting piece 201 of the a-phase coil, the first connecting piece 201 of the b-phase coil and the first connecting piece 201 of the c-phase coil of the upper transformer are respectively represented by x1, y1 and z1, the tail connecting piece 202 of the a-phase coil, the tail connecting piece 202 of the b-phase coil and the tail connecting piece 202 of the c-phase coil of the upper transformer are respectively represented by a1, b1 and c1, and the first connecting piece 201 of the a-phase coil and the c-phase coil of the lower transformer are respectively represented by x2, y2 and z2, and the tail connecting piece 202 of the a-phase coil and the c-phase coil are respectively represented by a2, b2 and c 2;
the second wiring assembly 200 includes four second wiring members 210, the four second wiring members 210 are respectively named as an a-phase second wiring member 2101, a b-phase second wiring member 2102, a c-phase second wiring member 2103 and a 0-phase second wiring member 2104, the tail wiring members 202 of the a-phase coil of each transformer 20 are electrically connected in parallel to the a Xiang Di two wiring members 2101, the tail wiring members 202 of the b-phase coil of each transformer 20 are electrically connected in parallel to the b Xiang Di two wiring members 2102, the tail wiring members 202 of the c-phase coil of each transformer 20 are electrically connected in parallel to the c Xiang Di two wiring members 2103, and at the same time, the head wiring members 201 of the a-phase coil of each transformer 20 are electrically connected in parallel to the 0 Xiang Di two wiring members 2104, the head wiring members 201 of the b-phase coil of each transformer 20 are electrically connected in parallel to the 0 Xiang Di two wiring members 2104, the head wiring members 201 of the c-phase coil of each transformer 20 are electrically connected in parallel to the 0-phase winding members Xiang Di, and the low-voltage transformer is connected in parallel to the upper transformer winding portion 2104;
the second total wiring ports 211 of the a-phase second wiring element 2101, the second total wiring ports 211 of the b-phase second wiring element 2102, the second total wiring ports 211 of the c-phase second wiring element 2103, and the second total wiring ports 211 of the 0-phase second wiring element 2104 are respectively used for electrically connecting with respective corresponding ones of the external devices.
In some embodiments, the primary winding of the transformer 20 and the secondary winding of the transformer 20 are both connected in delta connection, the primary winding of the transformer 20 is a high-voltage winding and has an a-phase, a B-phase and a C-phase, the first connection assembly 100 includes three first connection members 110, and one of the a-phase, the B-phase or the C-phase of the primary winding of each transformer 20 is electrically connected to the same first connection member 110 in parallel;
the secondary winding of the transformer 20 is a low voltage winding and has a phase a, b and c, and the second wiring assembly 200 includes three second wiring members 210, and one of the a, b or c phases of the secondary winding of each transformer 20 is electrically connected to the same second wiring member 210 in parallel. In this way, it is possible to realize that the respective transformers 20 are electrically connected in parallel to each other when both the primary winding of the transformer 20 and the secondary winding of the transformer 20 are delta-connected.
In some embodiments, referring to fig. 1 to 4, the transformer 20 further includes a core assembly 204, the core assembly 204 is formed by splicing three frame-shaped cores 2040, circumferential side portions of two adjacent frame-shaped cores 2040 are spliced to form a core limb (not shown), and the primary winding of the transformer 20 and the same-phase winding of the secondary winding of the transformer 20 are wound on the core limb at the same time.
Alternatively, the winding form of the coils of the primary winding of the transformer 20 and the secondary winding of the transformer 20 may be various existing winding forms.
Preferably, one of the coils of the secondary winding of the transformer 20 is wound around one core limb, an insulation cylinder (not shown) is sleeved on the circumferential outer side wall of the coil of the secondary winding of the transformer 20 after the winding is completed, and then the coil of the primary winding of the transformer 20, which is in phase with the coil of the secondary winding of the transformer 20, is wound around the circumferential outer side wall of the insulation cylinder, so that the primary winding of the transformer 20 and the in-phase winding of the secondary winding of the transformer 20 are simultaneously wound around one core limb.
In some embodiments, referring to fig. 1 to 4, the transformer 20 further includes a clamp assembly 205, the clamp assembly 205 includes an upper clamp 2051 and a lower clamp 2052, the upper clamp 2051 is formed with an upper installation space (not shown), the lower clamp 2052 is formed with a lower installation space (not shown), and one end of the core assembly 204 extends into the upper installation space and the other end of the core assembly 204 extends into the lower installation space such that the clamp assembly 205 fixes the core assembly 204.
Specifically, referring to fig. 1 to 4, the shape and size of the upper mounting space are respectively adapted to the shape and size of the end of the core assembly 204 extending into the upper mounting space, and the shape and size of the lower mounting space are respectively adapted to the shape and size of the end of the core assembly 204 extending into the lower mounting space, so that the clip assembly 205 stably fixes the core assembly 204.
In some embodiments, referring to fig. 1 to 4, the upper clamp 2051 and the lower clamp 2052 are triangular frames, and sharp corners of the triangular frames are chamfered, so that a hexagonal upper mounting space and a hexagonal lower mounting space are formed to respectively adapt to structures of one end of the iron core assembly 204 extending into the upper mounting space and one end extending into the lower mounting space.
In some embodiments, all transformers 20 are arranged and connected along the height direction of the transformer system 10, the connecting member is a bolt, one end of the bolt is connected to the lower clamping piece 2052 of one transformer 20, and the other end of the bolt is connected to the upper clamping piece 2051 of the transformer 20 adjacent to the lower clamping piece 2052 connected to the bolt to realize the connection between the adjacent two transformers 20.
In some embodiments, referring to fig. 1-4, the transformer 20 further includes a base connected to a side of the lower clamp 2052 remote from the core assembly 204. The base can be used for supporting the transformer 20, so that the transformer 20 can be stably placed on a working platform.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
In the present application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be in either fixed or removable communication, or may be integral, for example; may be in mechanical communication or in electrical communication; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "in communication with" another element, it can be directly in communication with the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
The foregoing examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (7)
1. A transformer system, comprising:
at least two transformers;
a first wiring assembly;
the primary windings of the transformers are electrically connected to the first wiring assembly in parallel, and the secondary windings of the transformers are electrically connected to the second wiring assembly in parallel, so that the transformers are electrically connected in parallel;
the first wiring assembly comprises first wiring pieces, the number of which is equal to that of the primary windings of the transformers, and one and the same primary windings of each transformer are electrically connected to the same first wiring piece in parallel;
the second wiring assembly comprises second wiring pieces, the number of which is equal to that of the secondary windings of the transformers, and one and the same secondary windings of each transformer are electrically connected to the same second wiring piece in parallel;
the primary winding of the transformer adopts a Y-shaped wiring method or a triangle wiring method, the secondary winding of the transformer adopts a Y-shaped wiring method, the primary winding of the transformer is a high-voltage winding and is provided with an A phase, a B phase and a C phase, the first wiring component comprises three first wiring pieces, and one of the A phase, the B phase or the C phase of the primary winding of each transformer is electrically connected with the same first wiring piece in parallel;
the secondary winding of the transformer is a low-voltage winding and is provided with an a phase, a b phase, a c phase and a 0 phase, the second wiring assembly comprises four second wiring pieces, and one of the a phase, the b phase, the c phase or the 0 phase of the secondary winding of each transformer is electrically connected with the same second wiring piece in parallel.
2. The transformer system of claim 1, wherein one end of the first wiring member is provided with a first total wiring port for electrical connection with an external device, and the other end of the first wiring member is for electrical connection with one and the same phase of the primary windings of each of the transformers; and/or
One end of the second wiring piece is provided with a second total wiring port, the second total wiring port is used for being electrically connected with external equipment, and the other end of the second wiring piece is used for being electrically connected with one and the same phase of the secondary windings of each transformer.
3. The transformer system of claim 1, wherein the primary winding of the transformer and the secondary winding of the transformer are both delta-connected, the primary winding of the transformer is a high-voltage winding and has an a-phase, a B-phase, and a C-phase, the first connection assembly comprises three first connection pieces, and one of the a-phase, the B-phase, or the C-phase of the primary winding of each transformer is electrically connected to the same first connection piece in parallel with each other;
the secondary winding of the transformer is a low-voltage winding and is provided with an a phase, a b phase and a c phase, the second wiring assembly comprises three second wiring pieces, and one of the a phase, the b phase or the c phase of the secondary winding of each transformer is electrically connected with the same second wiring piece in parallel.
4. The transformer system of claim 1, wherein the transformer further comprises a core assembly formed by splicing three frame-shaped cores, circumferential side portions of two adjacent frame-shaped cores are spliced to form one core limb, and a primary winding of the transformer and an in-phase winding of a secondary winding of the transformer are wound on one core limb at the same time.
5. The transformer system of claim 4, wherein the transformer further comprises a clamp assembly comprising an upper clamp and a lower clamp, the upper clamp being formed with an upper mounting space and the lower clamp being formed with a lower mounting space, one end of the core assembly extending into the upper mounting space and the other end of the core assembly extending into the lower mounting space such that the clamp assembly secures the core assembly.
6. The transformer system of claim 5, further comprising a base coupled to a side of the lower clip member remote from the core assembly.
7. The transformer system according to any one of claims 1 to 6, wherein all the transformers are arranged and connected in a height direction of the transformer system, the transformer system further comprising at least one connection element, whereby adjacent two of the transformers are connected to each other.
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| CN202111654653.8A CN114300245B (en) | 2021-12-30 | 2021-12-30 | Transformer system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201725672U (en) * | 2010-03-03 | 2011-01-26 | 四川蜀能电器有限责任公司 | Trifid rectifier transformer |
| CN102891001A (en) * | 2012-09-11 | 2013-01-23 | 沈阳昊诚电气股份有限公司 | Three-phase transformer system and power grid with same |
| CN203644535U (en) * | 2013-11-28 | 2014-06-11 | 哈尔滨电工仪表研究所 | High-current transformer for high-capacity experiment |
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2021
- 2021-12-30 CN CN202111654653.8A patent/CN114300245B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201725672U (en) * | 2010-03-03 | 2011-01-26 | 四川蜀能电器有限责任公司 | Trifid rectifier transformer |
| CN102891001A (en) * | 2012-09-11 | 2013-01-23 | 沈阳昊诚电气股份有限公司 | Three-phase transformer system and power grid with same |
| CN203644535U (en) * | 2013-11-28 | 2014-06-11 | 哈尔滨电工仪表研究所 | High-current transformer for high-capacity experiment |
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