The GPA111/110 SL Power Analyzer is designed for high-precision analysis of sinusoidal signals in high-voltage applications up to ±1500 VDC. It features four voltage channels and four current transducer inputs compatible with LEM IT, IN, LF, and Danisense sensors, supporting secondary currents up to 800 mA. The unit integrates a bipolar power supply system for transducers, eliminating the need for external power wiring. With a sampling rate of up to 100 kS/s per channel (20 kHz bandwidth), it ensures accurate real-time analysis of power quality and efficiency. The GPA111 model also includes frequency and counter inputs for torque or speed measurements. All channels are galvanically isolated, and data communication is enabled through EtherCAT, CAN, and CAN-FD interfaces. The system offers onboard data logging with a 4 TB SSD, powered by a Q.station Quad-Core processor for advanced power analysis. Users can access raw and processed data via EtherCAT, network share, or open API, enabling seamless integration into test environments and automation systems.