SU1032537A2 - Three-phase combined electric machine winding - Google Patents

Abstract

THREE-PHASE ELECTRIC MACHINE COMBINED COVER BY author.St. 879713, characterized in that, in order to improve the use of copper, the coil groups contain three concentric coils, the steps of which in grooves are equal to 8.6, 4 and the average coil is single-layer and has twice the number of coils than the other coils made double-layer.

Description

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The invention relates to winding-; combined electric, for example single-machine frequency converters and -number of phases.

According to the main auth. No. 879713 is a well-known three-phase aligned winding. Vypapnenny of 12 distributed coil. Groups connected in two parallel branches, the beginnings of which form three-phase clamps DT polarity, and the ends are connected to two additional pins for on; 2. In phase, they are connected sequentially according to groups 1 and 7 in one wind, .4 and 10 in another, and the numbers of the groups alternate with an interval. In one direction, - and additional conclusions are formed by connecting the ends of group 7, a, 9 and ; TO, 1,1,12.

The purpose of the invention is to improve m; the use of copper by way of

CLING single bilayer of KOHTV7H7 coils in 48 slots

This goal is achieved :: :: - ;; - ,; WHAT: the coil groups contain three Concentric coils, the steps of which in the grooves are 8, b, 4, and the middle coil is made single-layer and has twice the number of turns than the other coils made of two-layer.

Iahe; p-. | El (e shows the winding circuit. The winding is made of three phase

48 slots out of 12

Peluschostio

rag: irc; tepen; -g coil groups with i.shrami from 1 to 12. The group contains -.rk co-identric coils with steps along the grooves at 8, b, 4 and middle-coil coil has twice the number of turns of the other two s.poykya katumkko In one branch of the C1 phase csel1-: nen sequentially according to groups 1 and 7, in the other - 4 and 10 The numbers of the groups of phases C2 and -WD are filled: with an interval of one group-, The ends of r-group 7, 8, .9 and 10, 11, 12 ps | Dk,) P1-och; they are for additional outputs .oc 01 E 02. The upper row of arrows in the drawing shows the direction of the currents when the winding is powered through the output 01, Cl; NW three-phase current 4); and the lower p d - when powering .gk.i through the conclusions 01 and 02 constant current (,

PL.N 1 pad7; agaemob about; otki we have y, .p-6, (, 933, and for the winding, made two-layer, in 48 grooves with four cuts in groups - 054 0.837.

Thus, the use of copper in the pre-winding winding is 1.115 higher than in the known winding.

Claims (1)

THREE-PHASE ELECTROMECHANICAL COMBINED WINDING according to ed. No. 879713, characterized in that, in order to improve the use of copper, the coil groups contain three concentric * coils whose groove steps are 6.6, 4 the middle coil being single-layer and having twice as many turns as the rest of the coils, made two-layer.