Stability of transmission lines

STABILITY of power transmission “between two power plants operating in parallel is of utmost importance in providing uninterrupted power supply during system disturbances and abnormal operating conditions which may be due to short circuits, switching, and a variety of other causes,” states Alexander Smouroff (F´24) professor, Electrotechnical Institute, Leningrad, U. S. S. R., in introducing a recent manuscript dealing with the subject of static stability. This paper represents another mathematical contribution to the analytical solution of the transmission stability problem and, being written by a prominent foreign engineer, represents a point of view somewhat different from that of American engineers.