CN210516436U

CN210516436U - Novel dry-type transformer of connection mode

Info

Publication number: CN210516436U
Application number: CN201921796705.3U
Authority: CN
Inventors: 江航龙; 唐铖; 朱月萍; 胥林
Original assignee: Jiangsu Hasen Electric Co ltd
Current assignee: Jiangsu Hasen Electric Co ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-05-12
Anticipated expiration: 2029-10-24

Abstract

The utility model discloses a dry-type transformer of novel connection mode that simple structure, operational property are high mainly includes: the transformer comprises a primary winding I, a primary winding II, a closed iron core and a secondary winding, wherein the primary winding I, the primary winding II, the closed iron core and the secondary winding are respectively wound on the closed iron core, the secondary winding is positioned at an outer winding position, the primary winding I and the primary winding II are positioned at an inner winding position, the secondary winding is 35000V alternating current voltage, the primary winding I and the primary winding II are respectively independent 315V alternating current voltage, the upper half section of the primary winding I is positioned at the upper inner layer of a coil, and the lower half section of the primary winding I is positioned at the lower outer layer of the coil; the upper half section of the primary winding II is located on the outer layer of the upper portion of the coil, and the lower half section of the primary winding II is located on the inner layer of the lower portion of the coil.

Description

Novel dry-type transformer of connection mode

Technical Field

The utility model relates to a transformer especially relates to a novel dry-type transformer of connection mode.

Background

With the continuous change of the power utilization, the special requirements on the power utilization are more and more, the dry-type transformer matched with the photovoltaic inverter has the advantages that a primary side is required to be simultaneously matched with two inverters with the voltage of 315V alternating voltage, a secondary side supplies power to a 35000V alternating voltage power grid, generally, the transformer with the axially split primary side and the axially split secondary side is adopted for supplying power, the method is large in investment, and the power utilization cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the dry-type transformer is simple in structure and high in operation performance.

In order to solve the technical problem, the utility model discloses a technical scheme is: the novel dry-type transformer of connection mode mainly includes: the transformer comprises a primary winding I, a primary winding II, a closed iron core and a secondary winding, wherein the primary winding I, the primary winding II, the closed iron core and the secondary winding are respectively wound on the closed iron core, the secondary winding is positioned at an outer winding position, the primary winding I and the primary winding II are positioned at an inner winding position, the secondary winding is 35000V alternating current voltage, the primary winding I and the primary winding II are respectively independent 315V alternating current voltage, the upper half section of the primary winding I is positioned at the upper inner layer of a coil, and the lower half section of the primary winding I is positioned at the lower outer layer of the coil; the upper half section of the primary winding II is positioned on the upper outer layer of the coil, and the lower half section of the primary winding II is positioned on the lower inner layer of the coil; the upper half section of the primary winding I is connected with the lower half section of the primary winding I through a first lead; the upper half section of the primary winding II and the lower half section of the primary winding II are connected through a second lead, the first lead and the second lead are arranged in a staggered mode, and the secondary winding is 35000V alternating-current voltage and is located at the position of an outer winding.

The utility model has the advantages that: the dry-type transformer adopting the novel connection mode has the advantages of simple structure, balanced magnetic field and high running performance, saves the using amount of winding copper wires and iron core silicon steel sheets, reduces the overall dimension of the dry-type transformer and reduces the loss of the dry-type transformer.

Drawings

Fig. 1 is a schematic structural diagram of a dry-type transformer according to the present invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure: 1. the transformer comprises a primary winding I, 11, an upper half section and 12 of the primary winding I, a lower half section and 13 of the primary winding I, a first lead wire and 2, a primary winding II, 21, an upper half section and 22 of the primary winding II, a lower half section and 23 of the primary winding II, a second lead wire and 3, a closed iron core and 4 and a secondary winding.

Detailed Description

The following detailed description of the present invention will be made in conjunction with the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, the novel dry-type transformer mainly includes: the transformer comprises a primary winding I1, a primary winding II 2, a closed iron core 3 and a secondary winding 4, wherein the primary winding I1, the primary winding II 2, the closed iron core 3 and the secondary winding 4 are respectively wound on the closed iron core 3, the secondary winding 4 is positioned at an outer winding position, the primary winding I1 and the primary winding II 2 are positioned at an inner winding position, the secondary winding 4 is 35000V alternating current voltage, the primary winding I1 and the primary winding II 2 are respectively independent 315V alternating current voltage, an upper half section 11 of the primary winding I1 is positioned at an upper inner layer of a coil, and a lower half section 12 of the primary winding I1 is positioned at a lower outer layer of the coil; the upper half section 21 of the primary winding II 2 is positioned on the outer layer of the upper part of the coil, and the lower half section 22 of the primary winding II 2 is positioned on the inner layer of the lower part of the coil; the upper half section 11 of the primary winding I1 and the lower half section 12 of the primary winding I1 are connected through a first lead 13; the upper half section 21 of the primary winding II 2 and the lower half section 22 of the primary winding II 2 are connected through a second lead 23, the first lead 13 and the second lead 23 are arranged in a staggered mode, and the secondary winding 4 is 35000V alternating-current voltage and is located at the position of an outer winding.

The dry-type transformer adopting the novel connection mode has the advantages of simple structure, balanced magnetic field and high running performance, saves the using amount of winding copper wires and iron core silicon steel sheets, reduces the overall dimension of the dry-type transformer and reduces the loss of the dry-type transformer.

Claims

1. The novel dry-type transformer of connection mode mainly includes: primary winding I (1), primary winding II (2), closed iron core (3) and secondary winding (4), primary winding I (1), primary winding II (2), closed iron core (3) and secondary winding (4) coiling respectively on closed iron core (3), secondary winding (4) are located outer winding position, primary winding I (1) and primary winding II (2) are located interior winding position, its characterized in that: the secondary winding (4) is 35000V alternating-current voltage, the primary winding I (1) and the primary winding II (2) are respectively independent 315V alternating-current voltage, the upper half section (11) of the primary winding I (1) is located on the upper inner layer of the coil, and the lower half section (12) of the primary winding I (1) is located on the lower outer layer of the coil; the upper half section (21) of the primary winding II (2) is positioned on the outer layer of the upper part of the coil, and the lower half section (22) of the primary winding II (2) is positioned on the inner layer of the lower part of the coil; the upper half section (11) of the primary winding I (1) is connected with the lower half section (12) of the primary winding I (1) through a first lead (13); the upper half section (21) of the primary winding II (2) and the lower half section (22) of the primary winding II (2) are connected through a second lead (23), the first lead (13) and the second lead (23) are arranged in a staggered mode, and the secondary winding (4) is 35000V alternating-current voltage and is located at the position of an outer winding.