Few-Shot Fault Diagnosis of On-Load Tap Changers Based on a Multi-Source Cross-Sensor Prototype Adaptation and Dual-Prototype Fusion Network
An on-load tap changer (OLTC) is a key electromechanical switching device for transformer on-load voltage regulation, and its mechanical condition is closely related to equipment reliability. Vibration signals are sensitive to sensor location, so the same fault may exhibit different responses at different locations, wh...