Harmonic analyzers are essential for detecting distortion in electrical systems caused by modern electronic equipment and non-linear loads. One question that always comes up is: How many harmonics are there in power systems? Detailed power quality analysis can be performed on up to the 50th harmonic with most advanced analyzers such as the PowerSight PS4550. The PS4550 harmonic analyzer assists engineers in tracking THD, voltage sags, voltage swells, voltage transients and waveform disturbances with ease and accuracy. The sophisticated triggering, data logging and harmonic spectrum analysis capabilities are perfect for industrial facilities, utilities and energy audits. Harmonic analyzers can be used with real-time monitoring and detailed reporting software to help detect overheating, equipment failures and efficiency issues before they turn into expensive issues.