Development Of The Software For Faults And Experiments Analysis On Power Sets

In power system, connection among electric networks and expanding of electric networks make transient conditions more complicated. Fault record analyzing monitors power plant responses to transient situations. It not only provides tools and methods for power system designing and running, but also gives basis for monitoring and calibration of relays and automatic facilities. With the ultimate installation of power plant increasing, the importance of the stability of generators increases and the record and analysis facility for faults in generator and transformer units is in great need. These abstract fault records need analysis software to give whole and detailed analyzing. For supporting the fault record facility in No.1 generator in Fengman Hydropower Plant, an integrated analysis software for power sets was developed. This software includes two software modules: the module for fault record analyzing and the module for experiment record analyzing. Based on the VB IDE (Integrated Development Environment), a fault record analyzing software for power set was made out .For analyzing typical generator faults such as stator shortcircuit, shortcircuit between coils, shortcircuit between phases, excitation current losing, the software could provide specific data computing such as U3,U0, 12,z, 8. Besides performing data analyziqg in various gy~phic and tabular forms, it also has remote control functions that could set record parameters and triggering points through the master computer. According to the experiment type, the generator experiment- analyzing program draws out waveforms of 0-load test, three- phase shortcircuit test and sudden load-throwing test, and figure out some specific generator parameters.