CN2235649Y

CN2235649Y - Transformer for power supply of single-phase and three-phase

Info

Publication number: CN2235649Y
Application number: CN 95229148
Authority: CN
Inventors: 桑希志; 杨桂根; 吕厚军; 王猛; 王天佑; 焦文霞
Original assignee: TRANSFORMER FACTORY HEZE CITY
Current assignee: TRANSFORMER FACTORY HEZE CITY
Priority date: 1995-12-21
Filing date: 1995-12-21
Publication date: 1996-09-18
Anticipated expiration: 2005-12-21

Abstract

The utility model provides a transformer for the power supply of single-phase and three-phase, belonging to an electric device, and comprising an oil storage tank, an oil pipe, a shell, an upper cover, an input and an output terminals on the upper cover, an iron core, and a main and a secondary coils. The interior of the secondary coil is provided with a lighting working voltage coil provided with a neutral common contact with the secondary coil. The condition that one transformer provides the different voltage output of power and illumination is realized; the power transformation section is omitted, and the construction investment and the space occupation are reduced. The utility model particularly has obvious technology for the power supplying occasions of 660 volts; the utility model is good for eliminating the harmonic of 3 n times, and the waveform quality of the power supply can be improved.

Description

Move, shine the unification transformer

The utility model provides a kind of transformer, and particularly a kind of moving, photograph unification can provide the power electricity, and the transformer of civilian or low tension also can be provided, and belongs to the converting equipment field.

At present, deep popularization along with 660 volts of power supply techniques, the technical economic benefit of being brought is also more and more paid attention to by other industry, and the use field progressively increases, but for needing occasions such as other operating voltage such as domestic lighting simultaneously, also need the secondary transformation, or establish illumination converting equipment and corresponding distribution control device in addition, and increased investment and occupation of land, increased loss, the also corresponding increase of power supply link complexity, failure rate.

The purpose of this utility model is exactly for addressing the above problem, and design provides a kind of power, according to the transformer of unification, promptly be easy to 660 volts power power technologies promote, be beneficial to illuminalive power-supply again, reduce investment and take up an area of, reduce for the distribution link, the reduction failure rate.

The utility model is achieved in that its pair limit winding ties winding altogether by two neutral points and form, one provides illumination work, another provides power, the insulating oil passage that the insulation corrugated paper is isolated and formed is set between two windings, wherein provide illumination work power supply, dynamically working electricity and main winding to arrange from inside to outside successively, corresponding output becomes seven by four original (being the neutral point binding post outside one).

The utility model has the advantages that: transformer can provide two operating voltages such as moving, illumination, and separate, the interference of not working, reduced the power transformation link, save investment and occupation of land, particularly corresponding distribution facility has been significantly reduced the corresponding reduction of failure rate.And when the main winding connection of paying adopts D, during YN11,, more help having slackened 3n subharmonic electromotive force, strengthen antijamming capability, improve transformer output waveform quality for the threephase load unbalanced system.

Accompanying drawing 1 is looked schematic diagram for the utility model master;

Accompanying drawing 2 is the utility model schematic top plan view;

Accompanying drawing 3 is the utility model iron core, winding construction system schematic;

Accompanying drawing 4 is the utility model winding connection schematic diagram;

Describe concrete structure of the present utility model in detail below in conjunction with accompanying drawing.

The utility model moves, shines the unification transformer, by fuel reserve tank 1, oil pipe 2, three input terminals 3, three lead-out terminals 4, and neutral point binding post 5, loam cake 7, shell 8, iron core 9 and around thereon master, pay a

coil

10,11 and form, wherein pay be wound with in the coil 11 one independently and neutral point and pair coil 11 be connected to illumination work coil 12 on the neutral point binding post 5 altogether; It and pay between the coil 11 and isolate through insulation corrugated paper 13, and form transformer oil passage 14, three lead-out terminals 6 of corresponding illumination work coil 12 are set on loam cake 7.

Claims

1, a kind of moving, according to the unification transformer, comprise fuel reserve tank (1), oil pipe (2), three input terminals (3), three lead-out terminals (4) and an intermediate transit point binding post (5), loam cake (7), shell (8), iron core (9) and around thereon master, pay coil (10), (11) form, it is characterized in that: pay and to be provided with one in the coil (11) independently but neutral point is connected to illumination work potential winding (12) on the neutral point binding post (5) altogether with paying coil (11) neutral point, go up to be provided with at loam cake (7) and join with the corresponding lead-out terminal of coil (12) (6) and in coil (12).

2, moving, photograph unification transformer as claimed in claim 1 is characterized in that having between described coil (12) and (11) insulation corrugated paper (13) isolated, and forms oil duct (14).