SU909711A1

SU909711A1 - Transformer

Info

Publication number: SU909711A1
Application number: SU802953643A
Authority: SU
Inventors: Александр Васильевич Агеносов; Леонид Вениаминович Лейтес; Михаил Аронович Рогацкин
Original assignee: Научно-Исследовательский Институт Производственного Объединения "Уралэлектротяжмаш"
Priority date: 1980-07-11
Filing date: 1980-07-11
Publication date: 1982-02-28

Description

(54) ТРАНСФОРМАТОР(54) TRANSFORMER

1one

Изобретение относитс к электротехнике, в частности к трансформаторам на большие токи.The invention relates to electrical engineering, in particular to high current transformers.

Известен трансформатор, содержащий низковольтную обмотку и экран из материала с высокой электропроводностью, выполненный из полос в виде замкнутого контура и закрепленный между отводами низковольтной о&йотки при помощи изол ционных прокладок в плоскости отводов 1.A transformer is known that comprises a low-voltage winding and a screen made of a material with a high electrical conductivity, made of strips in the form of a closed loop and fixed between the low-voltage taps of the amps using insulating gaskets in the plane of the taps 1.

Недостатками указанного трансформатора , вл ютс сложность конструкции, св занна с введением дополнительных элементов дл образовани и креплени замкнутого контура, а также св занный с этим дополнительный расход материала с высокой электропроводностью.The disadvantages of this transformer are the complexity of the design associated with the introduction of additional elements for the formation and fastening of a closed loop, as well as the additional consumption of material with high electrical conductivity associated with it.

Цель изобретени - упрощение конструкции и снижение расхода материала с высокой электропроводностью.The purpose of the invention is to simplify the design and reduce the consumption of material with high electrical conductivity.

Поставленна цель достигаетс тем, что в трансформаторе, содержащем магнитопровод, обмотки с отводами, один из отводов выполнен в виде рамки, образующей замкнутый контур, внутри которого расположены остальные отводы.The goal is achieved by the fact that in a transformer containing a magnetic core, windings with taps, one of the taps is made in the form of a frame forming a closed loop, inside which the other taps are located.

На фиг. 1 схематично изображенаодна из фаз предлагаемого трансформатора с рамкой; на фиг. 2-4 - различные варианты выполнени рамки.FIG. 1 schematically depicts one of the phases of the proposed transformer with a frame; in fig. 2-4 - various embodiments of the frame.

Трансформатор содержит магнитопровод 1, обмотку 2 высщего напр жени и обмотку 3 низшего напр жени , к концам 4 которой припа ны шинные отводы 5 и 6. Один из отводов 5 выполнен в виде рамки, образующей замкнутый контур 5, 7, 8 и 9, внутри которого рас10 положен отвод 6.The transformer contains a magnetic core 1, a high voltage winding 2 and a low voltage winding 3, to the ends 4 of which are busted taps 5 and 6. One of the taps 5 is made in the form of a frame forming a closed loop 5, 7, 8 and 9, inside which 10 has been withdrawn 6.

В варианте выполнени экрана дл трансформатора , имеющего обмотку низшего напр жени с числом отводов, равным п, где п больше двух, отвод 5 вл етс одной из сто15 рон замкнутого контура, служащего экраном, а оставшиес отводы 6, 10, 11,..., (п-3), (), (п-1), п расположены внутри этого замкнутого контура. In an embodiment of a screen for a transformer having a lower voltage winding with a number of taps equal to n, where n is more than two, tap 5 is one of the sides of the closed loop serving as the screen, and the remaining tapes are 6, 10, 11, ... , (p-3), (), (p-1), p are located inside this closed loop.

Claims

In a closed loop for a transformer (Fig. 3), having a lower voltage winding, the outlets of which form one of the known connection schemes, for example, a triangle, a side 7 of the circuit located under the connector to the outlet side 5, is formed by the continuation of the latter. In an embodiment of a closed loop in the form of a frame for a transformer (Fig. 4), having a lower voltage winding with a number of taps equal to n, where n is more than two, tap 5 is one of the sides of the closed loop, and side 7 of the loop located under angle to the side-outlet of 5, formed by the continuation of the outlet 5. The remaining branches 6, 10, II ..., (p-3), (p-2), (p-1) are located inside the closed loop. Transformer operation in the low-voltage winding 3 and its taps flow alternating currents, with pairs of adjacent taps, for example 5 and 6, 10 and 11, ..., (rv3) and (iv2), (p-1) and p ( Fig. 2 H 4), currents of different directions flow, creating a magnetic flux of scattering, which in turn, according to Farad's law, causes in a closed loop of a frame formed by sides 5, 7, 8 and 9, a counter current, creating a magnetic flux of the opposite direction. 4 Along with compensating the flow of discharges, leading to a reduction in additional losses in nearby metal elements of the co-operation, the proposed device allows to simplify the design of the transformer and reduce the consumption of actual materials by reducing the number of electrically conductive wires required for the created circuit. Claims of the Invention A transformer containing a magnetic core, windings with taps, characterized in that, in order to simplify the design and reduce the consumption of active materials, one of the taps is made in the form of a frame, forming a closed loop, inside which the other taps are located. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 699580, cl. H 01 F 27/36, 1979.

f / S.f

m

S

W

tfg.2

(rig. 3

(rig, ff