SU1348959A1 - Single-phase combination winding of dynamoelectric machine - Google Patents

Abstract

The invention relates to windings of electric machines of the combined type with two polarized magnetic fields in a common magnetic circuit and can be used, for example, in single-machine frequency and number phase converters. The purpose of the invention is to expand the field of application by obtaining the numbers of pairs of poles p, as well as improving the parameters for. 10 1 g 3 h 5 in 7 in 3. J - .- 5 5 02 Fie. 2 values of p, and p. The winding is made of uniformly distributed coil groups and connected in two parallel branches, the beginnings and ends of which form phase clamps for pole position p, and the leads from their midpoints are additional points for polarity p. The winding contains ten coil groups, in one branch are connected in series the rolling groups with numbers 1, 3, -4, -8, 9, and in the other branch with numbers -6, -2, 5, 7, -10. The end of the first and the beginning of the sixth coil groups are connected, and additional clamps are made from the beginnings of the coil groups with numbers 4 and 7 and the groove pitch of the grooves is equal to pole division for polarity p, where the minus sign in front of the coil group number means its opposite inclusion in the branches. 2 Il. with 9 (L 00 4 ;; 00 el; o

Description

11348959

The invention relates to the windings of electric machines of alternating current and can be applied in combined machines with two polarized magnetic fields.

The purpose of the invention is to expand the region of prigene-tion by obtaining, as well as improving the parameters for the poles p, and p.

ten

FIG. 1 shows the scheme of the proposed winding; in fig. 2 - EMF diagram for polarity P (.

The winding (fig. 1) is made single-layer in twenty grooves from ten coils (with numbers 1-10) with a step along the grooves Y and connected in two parallel branches, the beginnings and ends of which form clamps А-В for polarity Р, 5. In the first branch are included in series the coils with numbers 1, 3, -A, -8, 9, and in the other branch with numbers -6, -2, 5, 7, -10 with the end of the first and the beginning of the sixth coils connected, and the additional clamps 01-02 for polarity p, are made from the beginning of coils 4 and 7. The upper row of arrows in FIG. Figure 1 shows the direction of the currents when powering the winding through the terminals A-B with a single-phase current (p, 5), and the lower pd when feeding through the terminals 01-02 with direct current (). On the EMF diagram for polarity p, 5 (fig, 2), the coil numbers are assigned to the ED vectors, from where Composer view, Ketsaris Editor T. Parfenova Tehred I.Popovich Corrector M, Demchik

  - - - - “- -. - -. - -- -.. - at - ".-,

Order 5197/55 Circulation 658 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow,:; - 35, Raushsk nab ,, d, 4/5

Production and printing company, Uzhgorod, st. Project, 4

but that this field does not induce an emf at terminals 01-02.

The winding has an equalizing connection (Fig. 2), which improves its parameters — for p.5, the sensitivity of the winding to the magnetic asymmetry of the machine is reduced, the shape of the curve is improved, and copper losses are reduced (by 1/5).

Claims (1)

Invention Formula Single-phase aligned electromachine winding with numbers of pole pairs p, / p, made of spatially displaced coil groups and connected in two parallel branches, the beginning and the ends of which form phase clips for polarity p, and outputs from their midpoints - additional clips for polarity p, characterized in that, in order to expand the scope of application by obtaining, and improve the parameters, the winding contains ten groups, in one branch groups 1, 3, -4, -8, 9 are connected in series, and to another branch - with numbers -6, -2 , 5, 7, -10, the end of the first and the beginning of the sixth groups are connected together, and these additional clamps are made from the beginning of the groups with numbers 4 and 7 and the step of the coils along the grooves is equal to pole division for polarity p, where the minus sign in front of the group number means its counter inclusion in the branches.