根据等效整距集中绕组与实际绕组产生相等基波磁动势的原则，给出了实际定子绕组与转子绕组的总有效匝数表达式。
Based on the principle that an equivalent full-pitch, concentrated winding gives the same fundamental MMF as the actual one, the effective number of turns of the equivalent winding is obtained.
故它能有效地进行直接绕线，工作效率高，匝数准确。
Therefore, the direct winding device can effectively carry out direct winding, achieves high working efficiency and leads exact number of turns.
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