A New Theory of Hunting [includes discussion]

New types of transient equations and equivalent circuits are established for the small oscillation study of synchronous, induction and other rotating machines. In the new form it is possible to interconnect the transient hunting equivalent circuits of any number and types of rotating machines, transmission lines and stationary networks in any desired combination by mere inspection of the actual system, without any previous physical or analytical study. Furthermore, from the resultant equivalent circuit it is possible to write down by mere inspection again the transient hunting equations and transfer functions of the entire complex system, to be set up and solved on a digital or analogue computer, in conjunction with connected regulators and servomechanisms.