Development of overcurrent relay based on wavelet transform for fault detection in transmission line
Santipont Ananwattanaporn,
Praikanok Lertwanitrot,
Atthapol Ngaopitakkul
et al.
Abstract:This study proposes a protection relay using a microcontroller to detect and classify faults in transmission lines based on the wavelet transform. An experimental model was constructed from an actual 115 kV transmission system prototype. The current signal was observed based on the fault type, phase, and position. Clark’s transform and the discrete wavelet transform (DWT) were applied to transform signals for analysis. Moreover, the performance of fault detection based on the output signals of Clark’s transfor… Show more
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