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 The SHDFR_PQ (Online Power Quality Monitoring Device) is a high-precision device specifically for monitoring power quality online. It has such functions as high-precision monitoring of power quality steady state indices, recording of transient power quality events, real-time measurement and monitoring of the power and quantity of electricity, recording of power quality events, pass-rate statistics, comprehensive analysis of monitoring data for power quality problems, report statistics and output. With these powerful functions, the device meets the requirements of various likely power quality monitoring scenarios.

Main Purposes

The SHDFR_PQ can be widely applied in power transmission and distribution networks, traditional power plants, electrified railways, new energy enterprises such as wind power companies, and major industrial and mining enterprises. As it is a fixed device, it can be customized as a device with a single monitoring point (a set of voltage and a set of current) or a product with multiple monitoring channels to meet monitoring requirements in various scenarios.

Main Functions

At important power transmission points and sensitive load points, the SHDFR_PQ can be set to achieve online monitoring for various power quality indices.

一、Steady State Function

   ? Frequency monitoring

   ? Voltage monitoring

   ? Harmonic/inter-harmonic monitoring

   ? Power monitoring

   ? Three-phase imbalance factor monitoring

   ? Voltage fluctuation monitoring

   ? Flickering monitoring

   ? Steady state event recording

   ? Pass-rate statistics

   ? Comprehensive analysis and statistics of monitoring data

二、Transient Function

? Transient voltage rise recording

           ? Transient voltage drop recording

           ? Short-time voltage interruption recording

           ? Transient state event recording