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- W3009739077 abstract "This paper evaluates the performance of an integrated power differential (IPD) scheme for three-winding power transformers protection. The proposed scheme aims to diagnose the transformer windings internal faults. In addition, it discriminates efficiently between the internal fault current and the magnetizing inrush current which is based on the sum of active and reactive (P&Q) power flowing from each side into the transformer. Three stages are involved in the proposed scheme. In the first stage, the discrimination process is dependent on active power differential scheme. Secondly, the reactive power differential scheme is enhanced, supports the relay operation and alleviates the problems of sensitivity to high impedance faults resistance accomplished by the first stage. Finally, the results indicated that the previous two stages need additional support to correctly detect the internal Line-to-ground fault at tertiary delta winding. For this reason, the discrete wavelet transformer (DWT) can be clarified to solve that predicament. The proposed scheme is checked when the total transformer losses are considered. Different abnormal conditions including internal, turn to turn and switching cases are used to examine the proposed technique performance which is generated by MATLAB /SIMULINK package simulations." @default.
- W3009739077 created "2020-03-13" @default.
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- W3009739077 date "2019-12-01" @default.
- W3009739077 modified "2023-09-24" @default.
- W3009739077 title "An Integrated Power Differential Scheme for Tertiary Power Transformer Protection" @default.
- W3009739077 cites W2080365290 @default.
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- W3009739077 doi "https://doi.org/10.1109/mepcon47431.2019.9007947" @default.
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