CN2363364Y

CN2363364Y - Four-post iron core three-group no-interference combined transformer

Info

Publication number: CN2363364Y
Application number: CN 98250258
Authority: CN
Inventors: 李淑芹; 范广田
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-12-18
Filing date: 1998-12-18
Publication date: 2000-02-09
Anticipated expiration: 2008-12-18

Abstract

The utility model relates to a four-post iron core three-group no-interference combined transformer, which belongs to an electric appliance. The utility model is mainly composed of an iron core of a transformer, a primary coil, a secondary coil, etc. The utility model is characterized in that the iron core of the transformer is composed of a four-post iron core, an A group primary coil is wound on a post iron 1, two ends of the A group primary coil are connected with a fuse box, one end of a B group primary coil and one end of a C group primary coil, and the B group primary coil is wound on a post iron 2. The utility model has the characteristics of simple structure, small volume and light weight. The utility model has the characteristic of no interference that two groups of the utility model can work normally when one group is broken or when two groups are broken, another group still work normally.

Description

The non-interfering combined transformer of four column iron core three-phases

The utility model relates to the non-interfering combined transformer of a kind of four column iron core three-phases, belongs to electric equipment.

At present, development along with the power transmission and distribution cause, particularly the needs of transforming are netted in the power transmission and distribution territory, electricity consumption department requires more and more higher to combined transformer (having another name called box-type substation) technical performance, and existing combined transformer or title box-type substation, their primary structure is that transformer has three-limb core, the transformer that this employing three-limb core is made, because faults such as opening circuit often appears in its structural reason, in case a phase or two-phase are former, pay the open circuit normal operation that will have influence on the Fu Bianyu phase of limit and give and produce and life has brought great inconvenience, existing in a word its structure of transformer needs to improve.

The purpose of this utility model is to design a kind of simple in structure, has the non-interfering combined transformer of four column iron core three-phases.

The purpose of this utility model is to realize like this, it is mainly paid coil parts such as (8) mutually by transformer core, A phase primary coil (5) and A and forms, it is characterized in that: transformer core is made up of post iron (1), post iron (2), post iron (3), post iron (4) four column iron cores, A phase primary coil (5) is wound on the post iron (1), and the two ends of A phase primary coil (5) is connected with fuse (11) and is connected a termination of primary coil (6) and C phase primary coil (7) mutually with B; B phase primary coil (6) is wound on the post iron (2), and the two ends of B phase primary coil (6) is connected with fuse (11) and connects a termination of primary coil (7) mutually with C; C phase primary coil (7) is wound on the post iron (3), the two ends of C phase primary coil (7) is connected with fuse (11), and transformer fe stem stem iron (1), post iron (2) and post iron (3) are wound with respectively that A pays coil (8) mutually, B pays coil (9) mutually and pays coil (10) mutually with C.

Its feature also is: the section configuration of transformer fe stem stem iron (1), post iron (2), post iron (3) and post iron (4) four column iron cores is identical, area equates.

Its feature also is: it is identical with the direction that detours that C pays coil (10) coil mutually that A phase primary coil (5), B phase primary coil (6), C phase primary coil (7), A pay coil (8) mutually, B pays coil (9) mutually.

The utility model is compared with prior art: it is simple in structure, and volume is little, and is in light weight, and the dynamic thermal stability electric current is big, and has all the other two-phases of a phase fault another non-interfering characteristics of operation as usual mutually of operation or phase to phase fault as usual.

Further specify below in conjunction with drawings and Examples:

Accompanying drawing is the utility model structural representation.

Wherein: 1, post iron, 2, post iron, 3, post iron, 4, post iron, 5, A phase primary coil, 6, B phase primary coil, 7, C phase primary coil, 8, A pays coil mutually, 9, B pays coil mutually, 10, C pays coil mutually, 11, fuse.

From accompanying drawing as can be seen: the design feature of the utility model transformer is also to be provided with the 4th column iron core the three-limb core aside except that having according to conventional three-phase transformer, and the sectional area of the 4th column iron core equates with the sectional area of all the other three-limb cores, shape is identical, but coiling not on the 4th column iron core, its structure are them mainly to be paid coil 8 etc. mutually by post iron 1, A phase primary coil 5 and A and partly forms.Transformer core is made up of post iron 1, post iron 2, post iron 3, post iron 4 four column iron cores, A phase primary coil 5 is wound on the post iron 1, and the two ends of A phase primary coil 5 is connected with fuse 11 respectively and a termination of primary coil 6 and another termination of C phase primary coil 7 are connected mutually with B; B phase primary coil 6 is wound on the post iron 2, and the two ends of B phase primary coil 6 is connected with fuse 11 respectively and another termination of primary coil 5 and a termination of C phase primary coil 7 are connected mutually with A; C phase primary coil 7 is wound on the post iron 3, the two ends of C phase primary coil 7 is connected with fuse 11 and another termination of primary coil 6 and a termination of A phase primary coil 5 is connected mutually with B, and transformer fe stem stem iron 1, post iron 2 and post iron 3 are wound with A respectively and pay coil 8, B mutually and pay coil 9 mutually and pay coil 10 mutually with C; A phase primary coil 5, B phase primary coil 6, C phase primary coil 7, A pay coil 8, B mutually, and to pay coil 9 mutually identical with the direction that detours that C pays coil 10 coils mutually.

Primary voltage balance when transformer normally moves, magnetic flux Φ A, Φ B, Φ C equate, and on vector, be mutually 120 °, three magnetic fluxs and be zero, this moment, the 4th column iron core did not have the magnetic flux flow mistake, and have other preface electric current to flow through to have offset preface magnetic flux in addition in the triangle coil, and can not make the 4th column iron core that the magnetic flux flow mistake is arranged yet, can not increase the iron core magnetic loss because the 4th column iron core is arranged.

Another characteristics of the utility model transformer are to be provided with fuse 11 in coil, when transformer is paid coil generation single-phase short circuit or primary coil produce fault, make fuse 11 fusing (for example A fuses mutually) in the phase coil, this moment B, the magnetic flux that C two-phase magnetic circuit flows through is constant, because A phase exciting curent is 0, Φ A is 0, make Φ B, Φ C sum is not 0, they form the loop by the 4th column iron core, make and pay coil UB, UC keeps original voltage swing constant, normally constant, normal power supply, in like manner other two-phase or mixes to break also same effect, so this product is subjected to users' welcome deeply.

Claims

1, the non-interfering combined transformer of a kind of four column iron core three-phases, it is mainly paid coil parts such as (8) mutually by transformer core, A phase primary coil (5) and A and forms, it is characterized in that: transformer core is made up of post iron (1), post iron (2), post iron (3), post iron (4) four column iron cores, A phase primary coil (5) is wound on the post iron (1), and the two ends of A phase primary coil (5) is connected with fuse (11) and is connected a termination of primary coil (6) and C phase primary coil (7) mutually with B; B phase primary coil (6) is wound on the post iron (2), and the two ends of B phase primary coil (6) is connected with fuse (11) and connects a termination of primary coil (7) mutually with C; C phase primary coil (7) is wound on the post iron (3), the two ends of C phase primary coil (7) is connected with fuse (11), and transformer fe stem stem iron (1), post iron (2) and post iron (3) are wound with respectively that A pays coil (8) mutually, B pays coil (9) mutually and pays coil (10) mutually with C.

2, the non-interfering combined transformer of four column iron core three-phases according to claim 1, its feature also is: the section configuration of transformer fe stem stem iron (1), post iron (2), post iron (3) and post iron (4) four column iron cores is identical, area equates.

3, the non-interfering combined transformer of four column iron core three-phases according to claim 1, its feature also is: it is identical with the direction that detours that C pays coil (10) coil mutually that A phase primary coil (5), B phase primary coil (6), C phase primary coil (7), A pay coil (8) mutually, B pays coil (9) mutually.