End-connection reactance of synchronous machines

Abstract

Much has been published lately on the subject of armature reaction, and the designer is now able to predetermine performances with a considerable degree of accuracy; but many of the assumptions made for the purpose of obtaining a mathematical solution to a difficult problem have tended to obscure rather than elucidate the physical conception of armature reactance. This may be of no serious importance when dealing with standard types of design, but in the development of new ideas or in making calculations on abnormal designs, a clear conception of the magnetic flux linking with the armature windings and so causing a reactive voltage is necessary to the development of new formulas or the intelligent application of existing formulas.