CN206116161U - Triangle -shaped three -phase iron core dry -type transformer - Google Patents

Abstract

The utility model belongs to the technical field of a dry -type transformer technique and specifically relates to a triangle -shaped three -phase iron core dry -type transformer, including three -phase iron core and coil, the cross -section of iron core is isosceles triangle, and the relative NULL of its apex angle direction of three iron core forms one row, the coil constitute by high -pressure coil and low voltage coil, low voltage coil is around in the iron core outside, high -pressure coil is around in the low voltage coil outside. The utility model discloses have and arrange closely compact structure to reduce the volume of transformer, reduced transformer non -load loss.

Description

A kind of triangle three-phase iron core dry-type transformer

Technical field

This utility model is related to a kind of Dry-Transformer Technology field, specifically a kind of triangle three-phase iron core dry-type Transformator.

Background technology

Dry-type transformer since the advent of the world, the energy-saving requirement increasingly strict in order to tackle China, coil and knot unshakable in one's determination Structure is experienced from circle to oblong transition, and loss is also gradually reduced；In April, 2016, national standardization association issues New edition《Dry-Transformer Technology parameter and requirement》, the loss to dry-type transformer is put forward higher requirement, due to circle Big with the volume of transformer of Long Circle core structure, thus resulting in open circuit loss increases phenomenon, and cost is also of a relatively high, such as What provides a kind of small volume, and the dry-type transformer of reduce loss becomes this utility model technical issues that need to address.

The content of the invention

This utility model in order to overcome drawbacks described above to provide a kind of small volume, do by the triangle tri-phase iron core of reduce loss Formula transformator.

The technical solution adopted in the utility model is：A kind of triangle three-phase iron core dry-type transformer, including tri-phase iron core And coil, coil is wound with the outside of each iron core, it is characterized in that：Each iron core makes columnar core by stalloy closed assembly, the core The section of body is isosceles triangle, and what three its drift angle directions of iron core were relative be alternately arranged and shape is in a row, i.e. three iron cores Waist is adjacent, base be alternately arranged successively relatively it is in a row；Described coil is made up of high-tension coil and low-voltage coil, low-voltage line Circle is around on the outside of iron core, and high-tension coil is around on the outside of low-voltage coil, and the coil positioned at middle iron core and its outside is B phases, position A phases and C phases are respectively in the iron core of both sides and its coil in outside, two taps of B phases are located at the base of triangular coils Outside, the last head that rises of B phases are located on the outside of the drift angle of triangular coils, are respectively set on the outside of the base of A phases and the triangular coils of C phases Three joints are equipped with, these three joints are transversely arranged, three joints are respectively：It is arranged on the tap of both sides and is arranged on centre Rise non-head.

Iron core is arranged to this utility model the core body that section is triangle, is wound with low-voltage coil successively on the outside of three iron cores And high-tension coil, the direction of three iron core vertex angles is contrary and is alternately arranged, and forms trapezoidal shape, and arrangement is tight, structure It is compact, without redundant space, so as to reduce the volume of transformator, reduce transformer noload losses；In addition, coil and iron core are equal Using triangular structure, in the case where iron core has friendship section constant, the centre-to-centre spacing of coil can diminish, so that the entirety of iron core Size diminishes, and the stalloy used by manufacture iron core is also reduced therewith；Secondly as three coils and iron core are towards contrary It is alternately arranged, Stability Analysis of Structures, it is not easy to displacement, it is possible to reduce the shadow that production and rigging error are caused when supporting to coil and iron core Ring so that the spacing between coil and iron core is uniform, the tap of A, C phase is located at relative both sides respectively with the tap of B phases, Facilitate the wiring group between three-phase coil to distinguish line, be easy to assembling.

Description of the drawings

Fig. 1 is schematic diagram of the present utility model.

Specific embodiment

This utility model is further described in conjunction with accompanying drawing, Fig. 1 is a kind of embodiment of the present utility model, including three Phase iron core 3 and coil, are wound with coil on the outside of each iron core 3, and each iron core 3 makes columnar core by stalloy closed assembly, the core The section of body is isosceles triangle, can also be equilateral triangle.The direction of three 3 its drift angles of iron core is oppositely arranged, alternately arranges Row shape is in a row, i.e. the waist of three iron cores 3 is adjacent, base be alternately arranged successively relatively it is in a row.Described coil is by height Line ball circle 1 and low-voltage coil 2 are constituted, and low-voltage coil 2 is around on the outside of iron core 3, and high-tension coil 1 is around on the outside of low-voltage coil 2, coil The tubular that section is triangle is turned to, the angle of the triangle is corresponding to the angle of triangle iron core 3, outside adjacent two iron core 3 30 millimeters of spaces, tri-phase iron core 3 and the so just arrangement form trapezium structure of coil are left between the high-tension coil 1 in portion.In being located at Between iron core 3 and its outside coil be B phases, positioned at both sides iron core 3 and its outside coil be respectively A phases and C phases.B phases Two taps 4 be located on the outside of the base of triangular coils, the end 5 of rising of B phases is located on the outside of the drift angle of triangular coils, B The tap 4 of phase is to be oppositely arranged with last head is played.Three are each provided with the outside of the base of A phases and the triangular coils of C phases to connect Head, these three joints are transversely arranged, and three joints are respectively：The tap 4 for being arranged on both sides and the last head for being arranged on centre 5。

As this utility model iron core 3 and coil are respectively provided with triangularity, while and by the setting of three iron cores 3 and coil To be alternately arranged, arrangement is tight, and compact conformation, so as to reduce the volume of transformator, reduces transformer noload losses.

This utility model has a small volume, reduces cost, reduce loss the characteristics of.

Claims (1)

1. a kind of triangle three-phase iron core dry-type transformer, including tri-phase iron core and coil, are wound with coil on the outside of each iron core, its It is characterized in that：Each iron core makes columnar core by stalloy closed assembly, and the section of the core body is isosceles triangle, three iron cores its What drift angle direction was relative be alternately arranged and shape is in a row, i.e. the waist of three iron cores is adjacent, base is relative to being alternately arranged into successively One row；Described coil is made up of high-tension coil and low-voltage coil, and low-voltage coil is around on the outside of iron core, and high-tension coil is around in low pressure On the outside of coil, the coil positioned at middle iron core and its outside is B phases, is respectively positioned at the iron core of both sides and its coil in outside A phases and C phases, two taps of B phases are located on the outside of the base of triangular coils, and the last head that rises of B phases is located at triangular coils On the outside of drift angle, three joints are each provided with the outside of the base of A phases and the triangular coils of C phases, these three joints are transversely arranged, Three joints are respectively：The tap for being arranged on both sides and the non-head for being arranged on centre.