Simulation and Protective Algorithm of Power Transformers Considering Hysteresis Effect
2005
Based on the study on the properties of Magnetic Inrush Current and Fault Current of power transformers, Saber is applied to realize the simulation of such conditions as no-load closing and all the fault conditions including turn-to-turn fault and turn-to-earth fault. Grounded on the wavelet analysis theory, a new method is proposed which can differentiate effectively the internal and external faults and detect the turn-to-turn fault. The simulation result shows its effectiveness.
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