Common Features:

Harmonic Analysis

Monitor the 2-63rd harmonic components of the measured signal, including the distortion rates of each harmonic for the three-phase voltage (2-63rd harmonics), three-phase current (2-63rd harmonics), inter-harmonics between three-phase voltages, inter-harmonics between three-phase currents, total harmonic distortion rate of three-phase voltage, and total harmonic distortion rate of three-phase current. Meets the testing requirements for public power grid harmonics as specified in GB/T14549-1993.

Voltage Fluctuations, Flickers, and Fault Wave Recording

The online power quality monitoring device can capture waveforms of all voltage channels exceeding the limit. Overvoltage, short-circuit faults, and other issues can trigger voltage transient recording, thereby capturing subtle changes in voltage waveforms.

Quantity measurement, voltage unbalance, and deviation analysis

The online power quality monitor can measure the unbalance degree of voltage and current, as well as the magnitude of zero sequence, positive sequence, and negative sequence, voltage deviation, and display the phase diagram of voltage and current.

Power System Monitoring, Alarm, and Recording

Multi-data monitoring, alarm, and recording including frequency limit alarms, three-phase voltage harmonic over-limit alarms, three-phase current harmonic over-limit alarms, voltage over-line and under-line alarms, total voltage distortion rate alarms, and voltage imbalance alarms, with real-time monitoring and recording of various parameters.