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Different stator winding types of multi-branch generator lead to different internal short circuit fault aggregation, and the main protection scheme research must base on this fault aggregation to educe the optimized branch grouping style on neutral side and the main protection configuration principles. The paper analyzed the stator winding type and internal short circuit faults of 250 MW generator...
Comparing with non-salient pole generator, large salient-pole generator's stator winding has generally more branches, so the related protection performance has some difference. In the paper, the related electric quantity change and protection performance are analyzed when generator stator winding breakage fault (SWBF) occurs, and the analysis results are confirmed by the dynamic simulation experiment...
The paper analyzed all the possible faults that may happen in stator of Pubugou 600 MW multi-branch hydro generator. And transient electrical characteristics of these faults are simulated by simplified simulation model, which is constructed based on dual damper in each pole principle. Based on simulation data, the protection effects of different protection theories under different stator branch grouping...
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