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ZYQ-11S/12S voltage switching boxes are important components of PXH-831/801E protection screen. Bus P.T secondary alternating voltage at I and II sections of power substation will be switched in the box and then transmitted to corresponding protective devices. The author has analyzed carefully on several failures under special operating conditions of ZYQ-11S/12S voltage switching boxes. Lay out every...
In order to increase the accuracy of creating operation ticket program, improve the general utilization of system, an intelligent operation ticket expert system for power substation is presented in this paper. The system is developed by VC++ and SQL database using object oriented programming technique. For using the knowledge of the experts in real-time control, the fuzzy control technology is adopted...
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