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The prospects for the development and implementation of new technologies for expanding the functionality and reliability of complete transformer substations are considered. It is shown that the main component of automation of switchgears of modern electrical substations is the system of automatic input of the reserve, and the main intellectual center of it becomes the controller, which is a specialized unit or system of freely programmable relay devices or programmable logic controllers. A new block diagram of the dispatching and diagnostics system of the digital substation switchgear with an element-by-element description of the functions and main operating modes is presented. A detailed description of the switchgear based on two bus sections, to which the circuit breakers of the outgoing lines are connected, is given. Innovative functions of monitoring and intelligent control of automated systems of various switchgears within the framework of the concept of digital substations are proposed. Examples of new unctions of the CTS “Cascade” system based on HMI controllers using web technologies are given.

MONITORING AND NEW FUNCTIONALITY OF SWITCHGEARS OF TRANSFORMER SUBSTATIONS WITH LCD "CASCADE"