Self starting synchronous motors

The following treatment of the starting of synchronous motors is intended to apply to polyphase motors and has been worked out for those of the revolving field type, but can doubtless be so modified as to apply to motors of the revolving armature type as well. The analytical treatment of the subject applies to motors with definite pole construction. The writer has not investigated in any way starting of motors of the round rotor type, such as are used in the construction of large high-speed turbo-generators.