Multi-armature and concentric motors

作者： Campbell G , Hoffmann G , Mason E , Jack G

DOI:

关键词: Electrical engineering 、 Armature (electrical engineering) 、 Mechanical engineering 、 Shunt generator 、 Concentric 、 Engineering 、 Excitation 、 Versa 、 Electric motor 、 Magnetic circuit

摘要: Electric motors of multi-armature and concentric design having high efficiency special operating characteristics adapting the for a number different types applications. The employs two or more armatures common source magnetic excitation, parallel circuits being established through to independently excite same. In armature version, connection excitation winding causes motor have dual characteristic in that speed one varies inversely with other armature, vice versa, until higher reaches critical rpm, whereupon load may be increased over wide range without further changes either armature.