CN202443838U

CN202443838U - Line-outgoing structure of double-reverse-star rectifier transformer

Info

Publication number: CN202443838U
Application number: CN2012200421488U
Authority: CN
Inventors: 田子仁; 刁成东; 顾惠新; 薛晋海
Original assignee: SUZHOU BOYUAN SPECIAL TRANSFORMER CO Ltd
Current assignee: SUZHOU BOYUAN SPECIAL TRANSFORMER CO Ltd
Priority date: 2012-02-10
Filing date: 2012-02-10
Publication date: 2012-09-19
Anticipated expiration: 2022-02-10

Abstract

The utility model discloses a line-outgoing structure of a double-reverse-star rectifier transformer. The transformer comprises two groups of double-reverse-star windings; both groups of double-reverse-star windings are connected with rectifier tubes; the directions of all rectifier tubes are consistent; the positive poles of all rectifier tubes are in parallel connection to form the positive pole of a direct current bus; the negative poles of all rectifier tubes are in parallel connection to form the negative pole of the direct current bus; and a load is connected between the positive pole of the direct current bus and the negative pole of the direct current bus. The line-outgoing structure of the double-reverse-star rectifier transformer has the advantages of simple line-outgoing manner and convenience in operation.

Description

The outlet structure of double-reverse star rectification transformer

Technical field

The utility model relates to a kind of outlet structure of transformer, is meant a kind of outlet structure of double-reverse star rectification transformer especially.

Background technology

The cophase counter parallel connection structure is generally being made in the low pressure outlet of the double reverse-stars type rectifier transformer that current ratio is bigger traditionally; Like Fig. 1, shown in Figure 2, it comprises two groups of two anti-star windings, and two groups of two anti-star windings connect 12 rectifying tubes altogether; Every phase is four in 12 rectifying tubes; Four rectifying tubes of homophase are one positive one to sow distrust among one's enemies at a distance from arranging outlet, and the purpose of doing like this is in order to eliminate the lead-in wire reactance, reduce supplementary load loss and to reduce the electric current of single rectification wall, helping choosing of rectifier cell.But be not more than in the commutation system of 20KA at direct current; Because causing lead-out wire how to be arranged all, the inherent characteristics of double reverse-stars type rectifier system can not constitute complete cophase counter parallel connection; Promptly do not reach above-mentioned purpose; Its main cause is to constitute cophase counter parallel connection must adjacent outlet switch on simultaneously, and the double reverse-stars type rectifier transformer can not reach this requirement.This cophase counter parallel connection structure not only makes the low pressure outlet more complicated of transformer, and the structure of commutation system also becomes complicated, is unfavorable for execute-in-place.

The utility model content

The utility model technical problem to be solved is: a kind of outlet structure of double-reverse star rectification transformer is provided, and the outlet structure outlet method of this double-reverse star rectification transformer is simple, be convenient to operation.

For solving the problems of the technologies described above; The technical scheme of the utility model is: a kind of outlet structure of double-reverse star rectification transformer, said transformer comprise two groups of two anti-star windings, and said every group of two anti-star winding joints all are connected with rectifying tube; All rectifying tube directions are consistent; The positive pole of all rectifying tubes is connected in parallel and constitutes the dc bus positive pole together, and the negative pole of all rectifying tubes connects and constitutes the dc bus negative pole, is used to connect load between said dc bus positive pole and the dc bus negative pole.

After having adopted technique scheme, the effect of the utility model is: a kind of outlet structure of double-reverse star rectification transformer, said transformer comprise two groups of two anti-star windings; Said every group of two anti-star winding joints all are connected with rectifying tube, and all rectifying tube directions are consistent, and the positive pole of all rectifying tubes is connected in parallel and constitutes the dc bus positive pole together; The negative pole of all rectifying tubes connects and constitutes the dc bus negative pole, is used to connect load between said dc bus positive pole and the dc bus negative pole, like this; The positive direction that when wiring, only notes all rectifying tubes is identical; And the positive pole and the negative pole of each rectifying tube are connected respectively, anodal composition dc bus anodal, the line of negative pole constitutes the dc bus negative pole; The unusual simple and convenient of wiring is convenient to operation like this.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the elementary diagram of background technology;

Fig. 2 is the winding diagram of background technology;

Fig. 3 is the elementary diagram of the utility model embodiment;

Fig. 4 is the winding diagram of the utility model embodiment;

In the accompanying drawing: 1. winding; 2. rectifying tube; 3. outlet; 4. outlet board.

Embodiment

Through specific embodiment the utility model is done further to describe in detail below.

Like Fig. 3, shown in 4, a kind of outlet 3 structures of double-reverse star rectification transformer, said transformer comprises two groups of two anti-star windings 1; The joint of said every group of two anti-star windings 1 all is connected with rectifying tube 2; 12 rectifying tubes 2 are according to four of the every phases of the characteristic of three-phase alternating current altogether, and a11, a14, a11, a14 are a phase, and b13, b16, b13, b16 are a phase; C15, c12, c15, c12 are a phase; The direction unanimity of all rectifying tubes 2 and positive pole are connected in parallel and constitute the dc bus positive pole together, and the negative pole of all rectifying tubes 2 connects and constitutes the dc bus negative pole, and the dc bus negative pole is arranged on the outlet board 4; Simple in structure, be used to connect load between said dc bus positive pole and the dc bus negative pole.

Fig. 1, the 2nd, cophase counter parallel connection outlet 3; Need rectifying tube 2 positive and negative alternates of four of a11, a24, a14, this homophase of a21 be arranged that when wiring in like manner, rectifying tube 2 positive and negative alternates that b13, b26, b16, this homophase of b23 are four are arranged; Rectifying tube 2 positive and negative alternates that c15, c22, c12, this homophase of c25 are four are arranged; Outlet board 4 is provided with positive and negative two kinds of binding posts, and the cophase counter parallel connection martingale is complicated, and operation simply is convenient in the homophase parallel way wiring among Fig. 3, Fig. 4.

Claims

1. the outlet structure of double-reverse star rectification transformer; Said transformer comprises two groups of two anti-star windings; Said every group of two anti-star winding joints all are connected with rectifying tube, and it is characterized in that: all rectifying tube directions are consistent, and the positive pole of all rectifying tubes is connected in parallel and constitutes the dc bus positive pole together; The negative pole of all rectifying tubes connects and constitutes the dc bus negative pole, is used to connect load between said dc bus positive pole and the dc bus negative pole.