Interactive Circuit Diagram The first step of the 3-step training process is to study the circuit diagram of the relevant high voltage yard. The trainee uses the interactive circuit diagram to perform high voltage yard operating (switching). Breakers and isolators may be opened and closed with mouse clicks. The trainee may also earth (ground) isolated sections of the high voltage yard. A detail electrical simulation runs in the background of the interactive circuit diagram. The system immediately presents a warning if the trainee performs an incorrect operation. The system keeps track of the number of correct and incorrect operations performed by the trainee. When the trainee has mastered the operating process on the interactive circuit diagram (symbolic level) he/she may progress to the virtual control panels. A step is therefore taken towards reality.
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