The application of static switching to the control of two 7,500-Hp oil-fired combustion turbines

SWITCHING of electric power is one of the most basic problems of the electrical engineer. The most common and accepted method of switching is by mechanically joining and separating conducting parts. During the past 10 years, the art of switching electric power statically has been developed to the point that it can now compete with the mechanical types of switching devices, particularly in the control field.