SU1640793A1 - Three-phase pole-switching winding - Google Patents

Abstract

The invention relates to electrical engineering, in particular to pole-switched windings of electric machines of alternating current. The purpose of the invention is to reduce the labor intensity of manufacturing and expand the scope of application. The winding for 10-8 poles contains 24 coil groups (KQ in 60 slots. Alternation of the numbers of coils in (KG) corresponds to the following: LC, 2K. 2K, LC, AC, 2K, 2K, LC. LC. 2K, 2K, LC , ЗК, 2К, 2К, ЗК, ЗК, 2К. 2К. ЗК, ЗК, 2К, 2К, ЗК. КГ form phases, divided into two semi-phases. In each semi-phase is included in KG, having the following sequence numbers: first half-phase first phases - 23, 1, 4, 6, the second half-phase of the first phase - 11,13,16,18, the first half-phase of the second phase - 7,9,12,14, the second half-phase of the second phase - 19, 21, 24, 2, the first the semi-phase of the third phase is 15. 17, 20, 22, the second semi-phase of the third phase is 3. 5, 8, 10, and In the semi-phase, the neighboring coil groups are included in the opposite direction, where K is an integer, K Z / 60. Z is the number of winding coils, a multiple of 60. 1 ill. with s

Description

The invention relates to pole-switched windings of electric machines of alternating current and can be used in multi-speed asynchronous motors.

The purpose of the invention is to reduce the labor intensity of manufacturing and expand the scope of application.

The drawing shows a diagram of a winding for 10 and 8 poles, laid in 60 slots (K

 one).

Winding contains 24 coil groups. The numbers of coils in each of the coil groups 1-24, starting from the first, correspond to a number of 3. 2. 2, 3, 3. 2, 2, 3. 3, 2, 3, 3, 2, 2, 3 3.2.2,3,3,2.2,3.

The first half-phase of the first phase, connected to the terminals 10Cr8Ci, includes coil groups 23, 1, 4, 6.

In the second half-phase of the first phase, connected to the 8СSОС2 terminals, the coil groups 11,13,16,18 are included.

In the first floor of the phase of the second phase, attached to the terminals 10С2-8С2, included coil groups 7, 9, 12, 14.

In the second half-phase of the second phase, connected to the terminals 8С2-ЮСз, are included the coil groups 19, 21, 24, 2.

The first half-phase of the third phase, connected to the terminals 10Сз-8Сз, includes the coil groups 15, 17, 20, 22.

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In the second half-phase of the third phase, connected to the clips of SzS-IOCi, are included the coil groups 3, 5, 8, 10.

In each semi-phase, neighboring coil groups are switched in opposite.

The pole switching is carried out according to the A / VY scheme,

 With 10Ci, USA, USC terminals and 8Ci, 8CA, 8Cz terminals connected to the mains, the winding creates a magnetic field with the number of poles equal to 10. With 8Ci, 8C2, 8Cz terminals connected to the mains network and closed 10Ci, 10C2, USC terminals, the winding creates a magnetic field with the number of poles equal to 8.

In comparison with the known, the proposed winding is less labor-consuming to manufacture, as it contains a smaller number of coil groups (24 as compared to 42 in the known).

In addition, the winding is feasible with a number of coils that are a multiple of 60, which allows it to be used in engines with a different power range.

Formulas and acquisitions Three-phase pole-switching winding for 10-8 poles, containing coils, combined into coil groups, forming phases, divided into two half-phases, supplied with leads from the beginning of the phases and points of connection of semi-phases, including 24 coil groups with sequence numbers from t to 24, characterized in that, in order to reduce the labor intensity of manufacturing and expand the field of application, the numbers of coils in each coil group correspond to a number of LCs, 2K, 2K. ZK, ZK, 2K, 2K, ZK, ZK, 2K, 2K. ZK, ZK, 2K. 2K, 3K, 3K, 2K, 2K, 3K, 3K, 2K, 2K, 3K, with coil groups having the following sequence numbers in the above range included in each semi-phase: first half-phase of the first phase - 23,1,4 , 6. the second half-phase of the first phase is 11, 13, 16, 18, the first half-phase of the second phase is 7, 9, 12, 14, the second half-phase of the second phase is 19, 21,24,2, the first half-phase of the third phase is 15. 17 , 20, 22, the second semi-phase of the third phase - 3, 5, 8, 10, and in each semi-phase the neighboring coil groups are included opposite, where K is an integer, K Z / 60, Z is the number of winding coils, a multiple of 60.

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Claims (1)

Claim Three-phase pole-switching winding for 10-8 poles, containing coils combined into coil groups, 5 forming phases divided into two half phases., Equipped with leads from the beginning of phases and connection points of the half phases, including 24 coil groups with serial numbers from 1 to 24, o The reason for this is that, with the aim of 10 reducing the laboriousness of manufacturing and expanding the scope, the number of coils in each coil group corresponds to a number of ZK. 2K, 2K. ZK, ZK, 2K, 2K, ZK, ZK, 2K, 2K, ZK, ZK. 2K. 2K, ZK, ZK, 2K, 2K, ZK, 15 ZK, 2K, 2K, ZK, with each half-phase included coil groups having the following serial numbers in the above series: the first half-phase of the first phase 23,1,4,6 The second half of the first phase is 11, 20 13, 16, 18, the first half of the second phase is 7, 9, 12, 14, the second half of the second phase is 19, 21,24,2, the first half of the third phase is -15. 17, 20, 22, the second half-phase of the third phase - 3, 5, 8, 10, and in each half-phase the neighboring 25 coil groups are included in the opposite direction, where K is an integer, K = Z / 60, Z is the number of winding coils that is a multiple of 60 .