Existing information-measuring systems (IMS) do not fully correspond to the tasks of monitoring electric power installations (EPI) in terms their characteristics. The capabilities IMS have certain limitations regarding probability measurement results and degree invariance influence operational factors. This proves that for modern failure-free EPI technical operation, new diagnostic tools are de...

This article proposes a method to compute the maximum allowable delay time (  ) for linear-timeinvariant-time-delayed-systems (LTI-TDS) with state-PID feedback control. It presents the main theorem with corollary, and computing steps to obtain .  Stability of a LTI-TDS with stateproportional integral derivative (PID) feedback is ensured if the delay time is less than .  The proposed approach...