Experimental performance examination of a coherence technique-based numerical differential current relay for AC machine stator windings protection.

ABSTRACT: A computational technique based on a coherence method for fault detection and classification for electrical machine stator windings is presented in this article. The coherence algorithm can identify clearly and concisely inter-turn and shunt faults situated on the 3-phase stator windings of the AC machine. Besides, it can categorize the different types of internal shunt faults. The cross-coherence algorithm performs the functional role of digital differential current to find and classify the internal faults; while, the auto-coherence algorithm acts as an overcurrent detector to define the occurrence of external, internal, or inter-turn faults. A new setup of three-phase induction machine stator windings, where each winding is re-winded to produce 20 taps per phase, is used to examine the a

SUBMITTER: Mahmoud RA 

PROVIDER: S-EPMC11882915 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature