CN201465725U

CN201465725U - transformer

Info

Publication number: CN201465725U
Application number: CN2009201208088U
Authority: CN
Inventors: 陈守约
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-22
Filing date: 2009-05-22
Publication date: 2010-05-12
Anticipated expiration: 2019-05-22

Abstract

The utility model provides a transformer comprising a top cover, a hoisting ring mounted on the top cover, a base, an iron core, a clamping piece fixed on the base for firmly clamping the iron core, a primary winding, a primary winding connection bolt, a secondary winding and a secondary winding connection copper bar, wherein, the upper end of the clamping piece is fixed by the top cover, the section of the iron core is rectangular, the iron core as a whole is arranged in an edge-on manner, the core column of the iron core is arranged horizontally, and the yoke column of the iron core is arranged vertically. The utility model is simple in overall appearance, reliable in structural strength, saves material, has excellent economic benefits, and is used on the driving power supply of a high-voltage frequency converter.

Description

Transformer

Technical field

The utility model relates to a kind of transformer, refers in particular to a kind of dry type phase-shifting rectifier transformer.

Background technology

At present, the development of high-voltage frequency conversion and speed-adjusting power-saving technology is rapid, and the jumbo frequency converter of voltage levels is widely used day by day, as the speed regulating control of blower fan, pump apparatus, can reduce energy resource consumption greatly, saves production cost.The dry type phase-shifting rectifier transformer is used for the driving power of high voltage converter, is badly in need of production domesticization.

Conventional dry type phase-shifting rectifier transformer core section is designed to circle, and whole upright the laying of iron core: the iron core stem stem is a vertical direction, and iron core yoke post is a horizontal direction.Its shortcoming is: transformer centre-to-centre spacing is big, thereby makes transformer and frequency converter cabinet length also bigger, and economy is not good.Simultaneously, though bolt locking is also arranged between the folder of conventional dry type phase-shifting rectifier transformer, they do not form frame structure, easy torsional deformation when being subjected to external impacts, incompatibility complex environment.

The utility model content

The purpose of this utility model is to provide a kind of transformer, and its monnolithic case is succinct, structural strength reliable, saving is better with material, economic benefit, is used for the driving power of high voltage converter.

For achieving the above object, the solution that the utility model is taked is: a kind of transformer, it comprises top cover, be installed in suspension ring, base, iron core on the top cover, be fixed on the folder that is used for the firm grip iron core on the base, a winding and winding connection bolt, secondary winding and a secondary winding copper busbar, the upper end of folder is fixed by top cover, the cross section of iron core is a rectangle, whole edge-on the laying of iron core, the stem stem horizontal positioned of iron core, the yoke post of iron core is vertically placed.

The utility model is a kind of this dry type phase-shifting rectifier transformer, on the basis of complete function that keeps conventional dry type phase-shifting rectifier transformer and electric reliability, its structure has been carried out the reasonably optimizing design again.Iron core is the skeleton of transformer, and its design form is directly determining the profile style of transformer.The utility model has the advantages that: the rectangle iron core cross section can make transformer centre-to-centre spacing reduce, thereby reduces the transformer height, and monnolithic case is succinct, and structural strength is reliable; Whole edge-on the laying of iron core can be reduced the transformer floor space, thereby reduced frequency converter cabinet length, save and use material, if on offshore oil drilling platform an inch of land is an inch of gold, this design form economy is splendid.

Description of drawings

Fig. 1 is the front view of present embodiment.

Fig. 2 is the end view of present embodiment.

Fig. 3 is an A-A profile among Fig. 2.

Among the figure: 1, suspension ring, 2, top cover, 3, folder, 4, windings, 5, the secondary winding copper busbar, 6, winding connection bolt, 7, lightning arrester, 8, earth stud, 9, base, 10, cushion block, 11, secondary winding, 12, clamping screw, 13, core through screw rod, 14, the yoke post, 15, stem stem.

Embodiment

Below in conjunction with embodiment and accompanying drawing thereof the utility model is remake description.

Present embodiment is a kind of NOMEX ^RPaper insulation system (H class F insulation) ZYSG dry type phase-shifting rectifier transformer.

Referring to Fig. 1-Fig. 3, a kind of transformer, it comprises top cover 2, be installed in suspension ring 1, base 9, iron core on the top cover 2, be fixed on the folder 3 that is used for the firm grip iron core on the base 9, winding 4 and winding connection bolt 6, secondary winding 11 and a secondary winding copper busbar 5, the upper end of folder 3 is fixing by top cover 2, the cross section of described iron core is a rectangle, whole edge-on the laying of iron core, stem stem 15 horizontal positioned of iron core, the yoke post 14 of iron core is vertically placed.

Referring to Fig. 1-Fig. 3, form the rectangular hexahedron frame structure by core through screw rod 13 and clamping screw 12 locking backs between the described folder 3.Folder 3 usefulness steel plates are made.The function of folder 3 is that the iron core clamping of transformer is firm, and passes through fixedly winding of device body insulation system, lays platform for other parts provide simultaneously.The advantage of the folder 3 of this transformer adopting is: the frame structure resistance to overturning of this uniqueness is good, and structural strength is big, is difficult for torsional deformation, can adapt to various complex environments.

Referring to Fig. 3, the top and following placement of described iron core is used to support the cushion block 10 of iron core, and it is more firm that the iron core clamping is got.

Referring to Fig. 1, fixing lightning arrester 7 on the described folder 3 prevents thunderbolt.

The utility model electric pressure height is divided into 3kV, 6kV, 10kV grade, and range of capacity is wide, and from 300kVA to 7000kVA, the phase shift angle is various, has 18 pulse waves, 24 pulse waves, 36 pulse waves not to wait, and can adapt to the specific (special) requirements of different user.Present embodiment ZYSG type H grade insulation dry phase-shifting rectifier transformer is to adopt the non-dry type special transformer of sealing unenclosed construction, its perfect heat-dissipating, it is strong to bear the thermal shock ability, overload capability is big, difficult combustion, fire protecting performance is good, and low-loss, partial discharge quantity is little, noise is low, do not produce toxic gas, free from environmental pollution, insensitive to humidity, dust, volume is little, do not ftracture, easy maintenance.Optimum be used for fire protection requirement height, load fluctuation big and filthy, moist adverse circumstances, in special operational environment such as thermal power plant, waterworks, chemical metallurgy, mine building materials.

Claims

1. transformer, it comprises top cover (2), be installed in suspension ring (1), base (9), iron core on the top cover (2), be fixed on folder (3), a winding (4) and the winding connection bolt (6), secondary winding (11) and the secondary winding copper busbar (5) that are used for the firm grip iron core on the base (9), the upper end of folder (3) is fixing by top cover (2), it is characterized in that: the cross section of described iron core is a rectangle, whole edge-on the laying of iron core, the stem stem of iron core (15) horizontal positioned, the yoke post (14) of iron core is vertical to be placed.

2. transformer according to claim 1 is characterized in that: form the rectangular hexahedron frame structure by core through screw rod (13) and clamping screw (12) locking back between the described folder (3).

3. transformer according to claim 1 is characterized in that: the top and following placement of described iron core is used to support the cushion block (10) of iron core.

4. transformer according to claim 1 is characterized in that: described folder (3) is gone up fixedly lightning arrester (7).