SU1429233A1 - Three-phase switchable-pole winding - Google Patents

Abstract

The invention relates to electrical engineering. The purpose of the invention is to improve the use of active materials. The winding is made of 24 coil groups with serial numbers from 1G to 24G7 of which twelve coil groups with serial numbers of 1G, 37.5G, 7G, 9G, 11G, 13G, 15G, 17G, 19G, 21G, 23G and the beginnings of external coils in the slots numbered 48, 4,8,12, 16,20,24,28,32,36,40,44, respectively, formed by concentric coil groups consisting of one coil with the number of turns W7, g performed in steps of 10 and one coil with the number of turns Wj, performed in increments of 8, twelve coil groups with the order numbers 2Г, 4Г, 6Г, 8Г, ЮГ, 12Г, 14Г, 16Г, 18Г, 20Г, 22Г, 24Г and the beginning of the coils in the slots with numbers 3,7., 11, 1 5,19,23,27, 31,35,39,43,47 respectively formed by coils with the number of turns W and step Yа 4. In the first half-phase of the first phase with clamps 16С1- 4C1 includes coil groups with serial numbers ZG, TOG, 15G, 22G, the second half-phase of the first phase with zamkami 4CI-C1 includes coil groups with order numbers 4G, 9G, 16G, 21G. The first half-phase of the second phase with clips 16C2-4C2 includes coil groups with serial numbers 2Г, 7Г, 14Г, 19Г, the second half-phase of the second phase with clips 4С2-С2 includes coil groups with serial numbers ГГ, 8Г, 13Г, 20Г. The first half phase of the third phase with clips 16СЗ-4СЗ includes coil groups with serial numbers 6Г, 11Г, 18Г, 23Г, the second half-phase of the third phase with clips 4СЗ-СЗ includes coil groups with serial numbers 5Г, 12Г, 17Г, 24Г At the same time, the coil groups with serial numbers 1G, ZG, 5G, 7G, 9G, 11G, 13G, 15G, 17G, 19G, 21 G, 23G are included opposite to the other coil groups within the semi-phases. 1 il. 4 Yu SO 1ch5 SO OO

Description

The invention relates to half-switchable windings of electric machines of alternating current and can be used in the electrical industry in the manufacture and installation of the stator windings of two-speed asynchronous motors.

The purpose of the invention is to improve the use of active materials.

The drawing shows the unwrapped winding circuit, which is completed in D8 of the pacator with numbers from 1G to 48G.

The coil includes 24 coil groups with serial numbers from 1G to 24g. Coils with a total number of turns of W are shown in thick solid lines, and coils with a number of turns of Wg 0.5-W are depicted in thin solid lines. Filling all the grooves is the same. - The winding contains nine outputs (16С1, 16С2, 16СЗ, 4С1, 4С2, 4СЗ, CI, С2, СЗ), which provides switching according to the Y / AU scheme. With the Y / YY switching circuit, the winding may have six.

When connected clips 16С1, 16С2,1бСЗ to a symmetrical power supply and tightened clips C1, C2, СЗ, a rotating magnetic field arises in the motor with pole numbers 2p 16. With connected clips 4CI, 4С2, 4СЗ to a symmetrical power supply and closed in three groups clamps 16C1-C1-4C2, 16C2-C2-4C3, 1 (SC3-C3-4C1 in the engine, a rotating magnetic field with a pole number of 2p 4 appears,

The magnitude of the winding coefficients of the proposed is Kw ,, 0.866, KW. 0.824, Kwc 0.8455. .:

In a constructive respect, the winding is single-double-layered, consists of 24 concentric coil cores and can be laid on modern storobotmotochnoy equipment, as its design meets all the requirements imposed on the windings for mechanized installation.

The proposed winding is superior to that known for the use of active materials and can be recommended for use in the electrical industry in the manufacture and installation of the stator windings of 2-speed 1-phase induction motors.

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Claims (1)

Invention Formula Three-phase pole-switched winding with the ratio of the numbers of poles. 2p. 16: 4, made in 48 slots of the stator with numbers from 1 to 48, containing concentric coil groups, the coils of which are connected in series, forming phases, divided into two half-phases, equipped with steps from the beginning and ends of the phases and points of the half-phases, which is different. In order to improve the use of active materials, the winding is made of 24 coil groups with serial numbers from 1G to 24G, of which twelve coil groups with / order serial numbers 1G. ZG, 5G, 7G, 9G, IG, 13G, 15G, 17G, 19G, 21G, 23G and the beginnings of external coils in grooves with numbers 48, 4, 8.12, 16, 20, 24, 28, 32, 36, 40 , 44, respectively, are formed by concentric coil groups consisting of one coil-C number of turns W, performed in 10 steps, and one coil with the number of turns W, executed in Pitch 8, twelve coil groups with serial numbers 2G , 4Г, 6Г, 8Г, ЮГ, 12Г, 14Г, 16Г, 18Г, 20Г, 22Г, 24Г and the beginning of the coils in the slots with numbers 3.7, П, 15, 19, 23, 27, 31, 35, 39, 43 , 47, respectively, are formed by coils with the number of turns W and a step yg 4, and the first half-phase is The first phase with clips 16C1-4CI includes coil groups with serial numbers, SG, SOUTH, 15G, 22G, the second half of the first phase with clips 4C1-C1 includes coil groups with sequence numbers 4G, 9G, 16G, 21 G , the first half-phase of the second phase with clips 16C2-4C2 includes coil groups with serial numbers 2G, 7G, 14G, 19G, the second half-phase of the second phase with clips 4C2-C2 includes coil groups with serial numbers 1G, 8G, 13G, 20G , the first half-phase of the third phase with clips 16SZ-4SZ includes coil groups with the order numbers bG, PG, 18G, 23rj in Tues The third phase of the third phase with clips 4СЗ-СЗ includes coil groups with serial numbers 5Г1, 12Г, 17Г, 24Г, while coil groups with serial numbers 1Г, HGLG ,eleven t g 3 S i 7 I Snin213J} 5} Snni3Z02122JS2 252S272S2 303) 3jyt353SJ73 3iV 411HS "T Of / " t