SU1387119A1 - Three-phase pole-switching winding - Google Patents

Abstract

The invention relates to pole-switchable windings of electric machines of alternating current and can be used in the electrical industry in the manufacture and installation of stator windings. The purpose of the invention is to improve the use of active materials and simplify the manufacturing technology. The winding is made in 36 slots with the ratio of the numbers of poles 2p,: 2p, 16: 4. In a constructive respect, the winding is made of a single-layer of 12 coil groups and can be laid in a mechanized way on modern storobotmotochnom equipment. The winding contains nine leads, which provides switching according to the y / DD scheme. The distribution of the coil groups over the half-phases of each of the three phases is given. 1 il. i SL C

Description

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

The aim of the invention is to improve the use of active materials and reduce the labor intensity of manufacturing windings.

The drawing shows the unfolded winding circuit, made in 36 slots of the stator with numbers from 1 to 36.

The coil includes 12 coil groups with serial numbers from G1 to G12.

The winding contains nine pins {16С1, 16С2, 16СЗ, 4С1, 4С2, 4СЗ, С1, С2, СЗ), which provides switching according to the Y / ДЛ scheme. With the Y / YY switching circuit, the winding can have six leads. Six coil groups with serial numbers G1, G4, G5, G8, G9, G12 and the beginnings of external coils in the slots numbered 1, 10, 13, 22, 25, 34, respectively, are formed by concentric coil groups with steps of 6 and y 8, six coils with order numbers G2, GZ, G6, G7, software, G11 and the beginning of the coils in the slots with numbers 4, 7, 16, 19, 28, 31 respectively are formed by a coil with a step of 8, and in the first half-phase of the first phase with clamps 16C1-4C1 include coil groups with serial numbers G4, PO; coil groups are included in the second half-phase of the first phase with clips 4C1-C1 with sequence numbers G1, G7, the first half-phase of the second phase with clamps 16C2-4C2 included coil groups with sequence numbers G12, G6, the second half-phase of second phase with clips 4C2-C2 included coil groups with sequence numbers G9, GZ, the first half phase of the third phase with clips 16СЗ-4СЗ includes coil groups with serial numbers Г8, Г2, the second half of the third phase with clips 4СЗ-СЗ includes coil groups with serial numbers Г5, Г11, while the coil groups within phases include according to.

The winding ratios of the proposed winding are 0.72, Kw, 0.945,, 835.

In a constructive respect, the winding is made single-layer consists of 12 coil groups and can be laid in a mechanized way on modern storobotmotochnom equipment.

Claims (1)

Invention Formula Three-phase pole-switched winding with the ratio of the numbers of poles 2pj: 2pj 16: 4, performed in 36 slots of the stator with numbers from 1 to 36, containing coils connected in series, forming phases, divided into two half-phases, provided with leads from the beginnings and ends of phases and points connection of semi-phases, characterized in that, in order to improve the use of active materials and simplify the manufacturing technology, the winding is made one-layer of 12 coil groups with serial numbers from G1 to G12, of which six coil groups with serial numbers of G1, G4, G5, G8, G9 and G12 and the beginnings of external coils in grooves with numbers 1, 10, 13, 22, 25 and 34, respectively, are formed by concentric coil groups with steps at 6 and 8, six coils with the order numbers G2, GZ, G6, G7, PO and G11 and the beginnings of the coils in the slots 4, 7, 16, 19, 28 and 31, respectively, are formed by a coil with a pitch of 8, and in the first half-phase of the first phase with clamps 16C1-4C1 are included coil groups with order new ones G4 and PO measures, the second half of the first phase with 4C1-C1 clips includes coil groups with serial numbers G1 and G7, in the first half-phase of the second phase with clamps 16C2-4C2 included coil groups with serial numbers G12 and G6, in the second half-phase of the second phase with clips 4C2-C2 included coil groups with order numbers G9 and GZ, in the first half-phase of the third phase with clips 16SZ-4SZ included coil groups with the order numbers G8 and G2, in the second half-phase of the third phase with clips 4SZ-SZ coil groups are included with the order numbers G5 and G11, with coil groups within the phases included according to.