Common Features
Harmonic Analysis
Monitor the 2-63rd harmonic components of the measured signal, including the harmonic distortion rates of 2-63rd harmonics for three-phase voltages and currents, inter-harmonic voltages and currents between three phases, as well as the total harmonic distortion rates for three-phase voltages and currents. Meets the test requirements for public grid harmonics as stipulated in the national standard GB/T14549-1993.Voltage Fluctuations and Fault Recording
The online power quality monitor can capture waveforms of all voltage excursion channels. 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 electric power quality monitoring device can measure the unbalance of voltage and current, as well as the amplitudes 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 out-of-range alarms, total voltage distortion rate alarms, and voltage imbalance alarms, with real-time monitoring and recording of various parameters.
Power Quality Monitoring System
System Composition
This system consists of data servers, WEB servers, monitoring equipment, and is complemented by powerful data analysis software, maximizing information integration and resource sharing. With the implementation of this system, it can automatically collect historical and real-time data from various monitoring points. Through the WEB server, workstations within the system can access historical and real-time data from different monitoring points, enabling analysis of historical data, and achieving unified management and scheduling of all monitoring points.
Data server
This system utilizes SQL Server 2000 database to automatically collect real-time and historical data from various monitoring points, storing it in the database for analysis. The database employs dual hard drives in mirror configuration for enhanced data loss prevention.
WEB Server
Users can access the web server to view real-time data waveforms and spectra of various sites, and can generate reports for any time period by analyzing historical data statistics.
