Introducing the Power Guard - an advanced system for ultra-early detection and monitoring of partial discharge. This innovative system incorporates digital broadband electromagnetic wave sensors, setting a new standard in early detection technology. Paired with cutting-edge AI dynamic noise reduction and real-time AI-based PRPD (Phase Resolved Partial Discharge) feature recognition, it minimizes false alarms and swiftly identifies partial discharge in its infancy. Not only does it pinpoint the type and severity of the discharge, but it also empowers operators to take immediate action, ensuring the prolonged and stable operation of high-voltage electrical equipment.