The 5117278 is a three-phase power quality analyzer designed for advanced logging, troubleshooting, and analysis of power systems. It features advanced transient capture technology with a sampling rate up to 20 MS/s, enabling detailed identification of high-speed voltage transients up to ±8 kV. The analyzer provides four voltage inputs rated at 1000 V CAT III / 600 V CAT IV and measures harmonics up to the 50th order and supraharmonics up to 30 kHz. Compliant with IEC 61000-4-30 Class A standards, it ensures high accuracy and reliability for professional diagnostics. Common applications include discovering equipment failures caused by transients, conducting harmonic surveys, and performing power utility quality surveys.