Investigations of the frequency and voltage dependence of load part systems using a digital self-acting measuring and identification system

Automatic equipment has been developed for the investigation of the static and dynamic behavior of load part systems. Two of these microcomputer-based measuring systems have been installed: one at a 150 MW load part system in Heidelberg, West Germany, and the other at a 80 MW load part system in West Berlin. The measuring equipment and the evaluation procedures are described as well as the load parameters obtained by identifying the strongly disturbed and therefore ensemble-averaged input/output signals recorded inside the load part systems.>