Common Features
Harmonic Analysis
Monitor the 2-63rd harmonic components of the measured signal, including the distortion rates of 2-63rd harmonics in three-phase voltage, 2-63rd harmonics in three-phase current, 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 grid harmonics as specified in national standard GB/T14549-1993.Voltage Fluctuations and Fault Recording
The online power quality monitoring device can capture waveforms of all voltage channels that exceed the limit. Overvoltage, short circuit faults, and other issues can trigger voltage transient recording, thus capturing subtle changes in voltage waveforms.Quantity measurement, voltage unbalance, and deviation analysis
The online power quality monitoring device can measure the unbalance degree of voltage and current, as well as the amplitude 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 overload alarms, three-phase current harmonic overload 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 is composed of data servers, web servers, monitoring equipment, and is complemented by powerful data analysis software, maximizing information integration and resource sharing. Through the implementation of this system, it can automatically collect historical and real-time data from various monitoring points. Workstations within the system can view both historical and real-time data from these monitoring points via the web server, and can analyze historical data, achieving unified management and scheduling of all monitoring points.
Data server
This system utilizes SQL Server 2000 for its database, capable of automatically collecting real-time and historical data from various monitoring points, which is then stored in the database for analysis. The database is mirrored across dual hard drives, enhancing the prevention of data loss.
Web Server
Users can access the web server to view real-time data waveforms, spectrums, etc., across various sites, and can generate reports for any time period from historical data statistics.
