SU1511816A1 - Three-phase switchable-pole winding - Google Patents

Abstract

The invention relates to electrical engineering. The purpose of the invention is to expand the field of application by making a number of slots in a multiple of 54. A winding with a ratio of the numbers of pole pairs P ₁ / P ₂ P ₃ = 4/3/2 contains 54 coils. Coils form a phase (F), divided into 4 parts. Coils with the following sequence numbers are included in each part: the first part of the first F-42.43.45, the second part of the first F - 1,3,4, the third part of the first F - 15,16,18, the fourth part of the first F - 28,30,31, the first part of the second F-51,25,27, the second part of the second F - 10,12,13, the third part of the second F - 52,54,24, the fourth part of the second F - 37,39,40, the first part of the third F - 33.34.36, the second part of the third F - 19.21.49, the third part of the third F - 6.7.9, the fourth part of the third F - 22.46.48. Within one part of the coil included according to. Winding contains 6 branches. Coils 53,2,5 are included in the first branch connected to the junction point of the first and second parts of the first Ф. The second branch, connected to the connection point of the third and fourth parts of the first Ф, includes coils 26, 29, 32. The third branch, connected to the junction point of the first and second parts of the second Ф, includes coils 8,11,14. Coils 35,38,41 are included in the fourth branch connected to the connection point of the third and fourth parts of the second Ф. The fifth branch, connected to the connection point of the first and second parts of the third Ф, includes coils 17,20,23. The sixth branch, connected to the connection point of the third and fourth parts of the third Ф, includes coils 44, 47, 50. In each branch of the coil included according to. 1 il.

Description

The invention relates to pole-switched windings of electric machines of alternating current and can be used in multi-speed asyncron engines Ho

The purpose of the invention is an extension of the area of application of the winding by making it in the number of slots multiple of 54.

The drawing shows a diagram of a winding of 4.6, and 8 poles, laid in 54 slots of the magnetic circuit.

The winding contains 54 coils with numbers from 1 to 54. Coils form phases, divided into four parts.

31

The first part of the first phase, connected to the terminal 8c and point a, includes coils with nbm 42,43,45,

In the second part of the first phase, attached to point a and clamp BS, coils 1,3,4 are included,

The third part of the first phase, attached to the clamp 6C and point a, includes coils 15,16,18,

In the fourth part of the first phase, attached to. Point a and terminal 8C, coils 28, 30, 31 are included,

The first part of the second phase, connected to the terminal 8C2 and point b, includes coils 51, 25, 27,

In the second part of the second phase, connected to point b and the clamp, the coils 10, 12, 13 are included,

In the third part of the second phase, attached to the clamp BS and point b, included coils 52,54,24,

The fourth part of the second phase, attached to the point b and the terminal 8Cj, includes coils 37.39, 40,

The first part of the third phase, attached to Sim 8Sz and point c, includes coils 34,33,36,

The second part of the third phase, attached to the point c and the clamp, includes coils 19, 21, 49.

The third part of the third phase, attached to the clamp 6cJ and point c, includes coils 6,7,9,

The fourth part of the third phase, connected to point c and terminal 8C, includes coils 22.46.48,

In each of the parts of the coil included according to.

The winding contains six branches, the first branch connected to the clamp 4C and point a, includes coils 53,2,5,

The second branch, attached to the terminal and point a, includes coils 26, 29, 32,

The third branch, connected to the terminal 4C.J and point b, includes coils 8,11,14,

The fourth branch, attached to the terminal 4Cj and the point b, includes a coil 35.38, 41,

Fifth branch, attached to the clamp 4Sz and point c, includes coils 17,20,23.

. The sixth branch, attached to the terminal 4Cj and point c, includes coils 44.47.50,

164

In each branch of the coil included according to.

When the 8C, 8C, 8Cz terminals are connected to the mains supply and free terminals, the winding creates a magnetic field with the number of poles equal to 8,

When the 6C, 6Cj, 6Cj terminals are connected to the mains supply and the 8C, 8C, 8Cz closed terminals, a magnetic field arises with the number of poles equal to 6,

In this case, the remaining clips of freedom

us

15

With 4C and 4C, 4C, and 4C, 4Cd couples in pairs and to the power supply network and closed terminals

8C., 8C,

80z and 6C,

6C

6C, winding., Uv, uv 3 -

ka creates a magnetic field with a number

poles equal to 4,

Claims (1)

The pre-wound winding is made in the number of slots that are a multiple of 54, which expands the area of its application, since it can be used in engines with a different power range. Invention Formula 0 five 0 five 0 five A three-phase pole-switchable winding with the ratio of the numbers of pairs of poles P, / P, / RZ 4/3 / 2-, containing coils forming phases, divided into four parts, and within one part of the coil V1jammed according to, provided with leads from the beginning of the phases, This is due to the fact that, in order to expand the scope of application by making it in the number of slots multiple of 54, the winding contains 54 coils with sequence numbers from 1 to 54, with each Part including coils having the following sequence numbers : the first part of the first phase - 42, 43,45, the second part of the first fa s - 1, 3.4, the third part of the first phase - 15, 16,18, the fourth part of the first phase - 28,30,31, the first part of the second phase - 51,25,27, the second part of the second phase - 10,12, 13, the third part of the second phase - 52,54,24, the fourth part of the second phase - 37,39,40, the first part of the third phase - 33, 34,36, the second part of the third phase - 19,21,49, the third part - the third phases - 6.7.9, the fourth part of the third phase - 22.46.48, and is equipped with six branches, with the beginning of the first branch under the ball to the junction point of the first and second parts of the first phase, the beginning of the second branch to the junction point of the third and the fourth part of the first phase, started the third branch to the junction point of the first and second {5th parts of the second phase, the beginning of the fourth branch to the junction point of the third and fourth parts of the second phase., the beginning of the fifth branch to the junction point of the first and second parts of the third phase to the sixth branch - to the point of connection of the third and fourth parts of tre151 (816 (, In the second phase, from the ends of the branches, conclusions were made, and the first branch included coils with numbers 53,2,5, the second branch - 26,29,32, the third branch 8, II, 14, the fourth branch - 35 , 38.41, in the fifth branch - 17,20,23, in the sixth branch - 44, 47.50, and in each branch the coils are included according to. KI "C, te, to.