SU1707702A1 - Three-phase pole-changing winding - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to electrical engineering, in particular to the windings of AC electrical machines. The purpose of the invention is the extension of the field of application. The three-phase pole-switching winding for 8-10 poles contains coils combined into 36 coil groups (CG) and grouped into three three-phase stars connected in parallel with the series connection of coil groups in each phase (F). The winding is made in 90 slots. In this case, the alternation of the numbers of coils in the coil groups corresponds to

Description

to

 four, ...). In f one

, gg KG since then d ,, for the first F,

f, Yu, 17 - dl

, Three-phase star

.vut 22, 25, 29 - dl

n the second f, 32, 36.

- retey three-phase

..members 8. 12, 15 -

for the second F, 23,

h: with numbers 35, 20,

l k, 15, 1 included

v. Winding contains

also three branches. In the first branch, connected to the zero point of the first three-phase star, are included CG with numbers 16, 30 and counter with them - 7. 21. In the second branch,

connected to the zero point of the first three-phase star, the CG with numbers 16, 30 and opposite with them - 7, 21 are included. The second branch, connected to the zero point of the second three-phase star, includes the CG with

Numbers 6, 28 and opposite them - 19. 33. The third branch, connected to the zero point of the third three-phase star, includes CGs with numbers 4, 18 and opposite them - 19, 31. 1 ill.

Invented

The name is ochCharically MHorocKiv also p rebuilding 4

Ennim K.V. The purpose of the oathan a4-eni ur.g- On che, - and 8 and K Omeredovdruppakh l. 2. 3. A B per - and. point. P dkov In R-ydy. point

In tr s sub soy point, h rd dvk4 In air, on -, - h point, h r d dc

dy by

the point.

rdk1

In g

SUB

the point. h r d 4

at

YES, PO1

point at

x k.polyuspereklyu- yukriticheskih machines em to find application, circular motors, machines, such as. s, machines with internal- 1

improved use by decreasing OK.

., the winding scheme, laying in 90 slots.

6 reel groups.

,, nis in reel

, do (4, 4, 3, 2. 1. 1, 1,

, "Oh three-phase stars- k1zhim 8Ci and zero,; eternal groups with- J. 35

,, howl three-phase star- 8C; and zero shepherd groups with L). 24. -27.

three-phase star, .. / Kimu 8C.) and zero

 buccal groups with 10, 13. 17., ora of a three-phase star clamp 8C | and zero

Buccal groups from 22, 25, 29.

.; a threefold starfish clip clamping 8Cj and zero buccal groups with a peri., i II. 14.

the three-phase star;, the mode of 8C (and the zero buccal groups with the ...,. 32. 36. 3,

 There is a three-phase star for clamping 8Ci and zero p.1. Tips with a rank of 8. 12, 15.

0

In the second phase of the third three-phase star, connected to the 8Сг clamp and zero point, coil groups with serial numbers 34, 1, 5 are included.

In the third phase of the third three-phase star - 5, which is connected to the terminal 8Сз and the zero point, coil groups with serial numbers 2, 3, 26 are included.

The coil groups with numbers 35, 20, 27, 13. 11, 32, 3. 25, 23, 8, 15, 1 are included in opposite coil groups of the corresponding phases.

The winding also contains three branches, one ends of which are connected to zero points, while others form winding pins.

In the first branch, connected to the JC clamp; and the zero point of the first three-phase star, included are the coil groups with serial numbers 16, 30 and counter with them - 7. 21.

The branch connected to the terminal of the UCS and the zero point of the second three-phase star includes coil groups with serial numbers 6, 28 and opposite them — 19, 33.

The third branch, connected to the USS terminal and the zero point of the third three-phase 5 star, includes coil groups 4, 18 and 9, 31 opposite to them.

When the 8C |, 8C2, 8Сз terminals are connected to the mains supply and the lOCi, 10C-2, USC free terminals, the winding creates a magnetic field with the number of poles equal to 8. 0 With the lOCi terminals connected. 10C. YuSZ to the power supply and free clips 8C |. 8С2, 8С3 winding creates a magnetic field with the number of poles equal to 10.

The magnitude of the differential emf of parallel branches for both numbers of poles is less than 2% versus 4% of the known.

A decrease in the differential emf leads to a decrease in the balancing currents and an increase in the energy indices of the engine.

0

Claims (1)

Claims Three-phase pole-switched winding for 10-8 poles, made in 90 slots of 36 coil groups with the order of the phase of the third three-phase star, includes coil groups with order numbers of 8, 12, 15 for the first phase, 34, 1.5 for the second phases, 23, 26 - for the third phase, vymi numbers from 1 to 36, grouped 5 and coil groups with numbers 35, Three three-phase stars connected in parallel with the series connection of the coil groups in each phase, equipped with leads taken from the points parallel to 20, 27, 13, 11, 32, 3, 25, 23, 8, 15 are included opposite to other coil groups of the corresponding phases besides TOTOV, the winding contains three branches, one ends of which are of the bottom phase connection, which are hooked to the zero points of the stars, while others form the winding pins, while the first branch connected to the zero point of the first three-phase star includes coil groups with serial numbers 16, 30 and 7, 21 opposite to them, the second that, in order to improve the use of active materials by reducing equalizing currents, the alternation of the numbers of coils in the coil groups corresponds to the row (4, 4, 3, 2, 1, 1. I, 1, 2, 3, 4, 4, ... ), the phases of the winding pins are formed, while the first branch connected to the zero point of the first three-phase star includes coil groups with sequence numbers 16, 30 and opposite them - 7, 21, the second The three-phase star includes the coil-15 branch, connected to the zero point in the second group with serial numbers 2, 35 and three-phase star, the first phase coil is included, 20, 24, 27 - for the second group with serial numbers 6, 28 phases, 10, 13, 17 - for the third phase, in phases and opposite with them - 19, 33, and in the third branch, the second three-phase star included katu-connected to the zero point of the third neck groups with serial numbers 22.20 of a three-phase star, coil units included 25, 29 - for the first phase, 11, 14 - for the second group with serial numbers 4. IS and phase of the phase, 32. 36, 3 - for the third phase, 9, 31 along with them. the phases of the third three-phase star include coil groups with sequence numbers 8, 12, 15 for the first phase, 34, 1.5 for the second phase, 23, 26 for the third phase,  moreover, the coil groups with numbers 35, moreover, the coil groups with numbers 35, 20, 27, 13, 11, 32, 3, 25, 23, 8, 15 are included in opposite coil groups of the corresponding phases, besides TOTOV, the winding contains three branches, one ends of which are hooked to the zero points of the stars, and others form the winding pins, while the first branch connected to the zero point of the first three-phase star includes coil groups with serial numbers 16, 30 and 7, 21 opposite to them, the second branch connected to zero wto