The problem of determining the instantaneous power when it is used in the process of diagnosing nonlinear objects of electrical systems is formulated. Generalized calculation relations for instantaneous power components are obtained and presented with different methods for their determination. The results of their comparative analysis made it possible further determine the conditions of applicability of the obtained relations from the standpoint of measurement accuracy, minimizing the volume of calculations, as well as increasing the visibility and information content of the results.
PL
Analizowano problem określania mocy chwilowej przy diagnostyce obiektów nieliniowych. Przedstawiono różne metody określania składowych mocy oraz analizowano dokładność.