Armature Windings of Electric Machines
Armature Windings of Electric Machines
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126 and 127, where smoother action is obtained partly by virtue of the choice of a number of conductors, prime, or nearly so, to the number of poles.
250 ARMATURE WINDINGS OF ELECTRIC MACHINES. [CHAP. Xv.
Figure 119 is a non-overlapping, three-phase, coil wind- ing, with only one and one-half coils per pole piece per phase. It is the winding which was given with its single- phase connection, in Fig. 96. This should make a very excellent three-phase winding, as there is no crossing of the coils.... It is a regular thirty-pole, single-phase winding, connected up as a three-phase armature for twenty poles. This diagram should be compared with Fig. 77, Fig. 96, and Fig. 102. It should be particularly suitable for use in three- phase motor work, as it should have very weakly defined dead points. In a projection armature, when a slot is opposite a certain pole piece, spaces between two slots will be opposite the adjacent pole pieces, thus giving a more equitable distribution of the magnetic flux.
What to read after Armature Windings of Electric Machines?
You can find similar books in the "Read Also" column, or choose other free books by H F Horace Field Parshall to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
126 and 127, where smoother action is obtained partly by virtue of the choice of a number of conductors, prime, or nearly so, to the number of poles.
250 ARMATURE WINDINGS OF ELECTRIC MACHINES. [CHAP. Xv.
Figure 119 is a non-overlapping, three-phase, coil wind- ing, with only one and one-half coils per pole piece per phase. It is the winding which was given with its single- phase connection, in Fig. 96. This should make a very excellent three-phase winding, as there is no crossing of the coils.... It is a regular thirty-pole, single-phase winding, connected up as a three-phase armature for twenty poles. This diagram should be compared with Fig. 77, Fig. 96, and Fig. 102. It should be particularly suitable for use in three- phase motor work, as it should have very weakly defined dead points. In a projection armature, when a slot is opposite a certain pole piece, spaces between two slots will be opposite the adjacent pole pieces, thus giving a more equitable distribution of the magnetic flux.
What to read after Armature Windings of Electric Machines?
You can find similar books in the "Read Also" column, or choose other free books by H F Horace Field Parshall to read onlineMoreLess
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