RU2242076C1 - Three-phase/two-phase winding - Google Patents

Abstract

FIELD: electrical engineering.

SUBSTANCE: proposed three-phase/two-phase winding has 12 coil groups with outputs from integrated finishing leads 1, 5, 9 and starting leads 4, 8, 12 of coil groups, from integrated starting leads 1, 7 of coil groups, from integrated staring leads 3, 9 of coil groups, from integrated starting leads 5, 11 of coil groups, from integrated finishing leads 2, 8 of coil groups, from integrated finishing leads 4, 10 of coil groups, from integrated finishing leads 6, 12 of coil groups, and from integrated starting leads 2, 6, 10 and finishing leads 3, 7, 11 of coil groups.

EFFECT: enhanced performance characteristics of dual-speed induction motors.

1 cl, 2 dwg

Description

The invention relates to electrical engineering and can be used to create asynchronous electric motors with high performance.

Known three-phase-two-phase winding containing 12 coil groups with leads from the combined ends of 1, 5, 9 and the beginnings of 4, 8, 12 coil groups, from the combined beginnings of 2, 6, 10 coil groups, from the combined beginnings of 1, 7 coil groups, from the combined beginnings of 3, 9 coil groups, from the combined beginnings of 5, 11 coil groups, from the combined ends of 3, 7, 11 coil groups, from the combined ends of 2 and 8 coil groups, from the combined ends of 4 and 10 coil groups, from the combined ends 6 and 12 reel groups / 1, 2 /.

The disadvantage of the winding is a large number of conclusions.

The present invention solves the problem of reducing the number of conclusions from the winding and improving the performance of asynchronous motors.

The solution to this problem is achieved by the fact that in a three-phase-two-phase winding of 12 coil groups with leads from the combined ends of 1, 5, 9 and starts 4, 8, 12 coil groups, from the combined beginnings of 1, 7 coil groups, from the combined beginnings of 3 9 coil groups, from the combined beginnings of 5, 11 coil groups, from the combined ends of 2 and 8 coil groups, from the combined ends of 4 and 10 coil groups, from the combined ends of 6 and 12 coil groups, the conclusion is taken from the combined beginnings 2, 6, 10 and ends 3, 7, 11 of the coil groups.

Figure 1 shows a diagram of a winding;

figure 2 shows a diagram of the inclusion of capacitors.

According to figure 1, the stator winding contains 12 coil groups with leads from the combined ends 1, 5, 9 and the beginnings of 4, 8, 12 coil groups, from the combined beginnings of 1, 7 coil groups, from the combined beginnings of 3, 9 coil groups, from the combined began 5, 11 coil groups, from the combined ends of 2 and 8 coil groups, from the combined ends of 4 and 10 coil groups, from the combined ends of 6 and 12 coil groups and from the combined beginnings of 2, 6, 10 and ends 3, 7, 11 of the coil groups.

According to figure 2, when applying a three-phase voltage to the terminals 13 and 16, 14 and 18, 20 and 19, the winding creates 4 poles, and when applying a single-phase voltage to the terminals 15 and 17, two phase windings form 6 poles. At 4 poles, capacitors C help reduce the reactive current in the network, and at 6 poles they provide a phase shift of currents. To change the direction of rotation of the motor rotor when connected to a single-phase network, capacitors are connected to pins 16, 18 and 19.

Sources of information

1. USSR Author's Certificate No. 734852, N 02 K 3/28, 1980. Vanurin V.N.

2. Stator windings of induction motors. - Zernograd: VNIP-TIMESH, 2001.

Claims (1)

Three-phase-two-phase winding containing 12 coil groups with leads from the combined ends of 1, 5, 9 and the beginnings of 4, 8, 12 coil groups, from the combined beginnings of 1, 7 coil groups, from the combined beginnings of 3, 9 coil groups, from the combined beginnings 5, 11 coil groups, from the combined ends of 2 and 8 coil groups, from the combined ends of 4 and 10 coil groups, from the combined ends of 6 and 12 coil groups, characterized in that the output is taken from the combined beginnings of 2, 6, 10 and ends 3 , 7, 11 reel groups.

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