DFR

CONTINUOUS WAVEFORM RECORDINGS
Exclusive only to the BLACKBOX, the DFR can record & store all electrical waveforms, for more than a year (Voltage and current at 1024 samples per cycle). It calculates RMS, harmonics & all desired values from waveforms in post-processing that includes calculations of over 10,000 parameters. Obtain a clear and comprehensive picture of conditions leading up to, during, and after an event.

SUPREME TRENDS RESOLUTION
The G5DFR measures and records 5,000 power parameters continuously at a resolution of ½ cycles, 10/12 cycles, 150/180 cycles, 10 min and 2 hours of which, any given resolution is calculated for display and reporting purposes. Hence, there is no need to select which parameters to log, and more importantly, which parameters to ignore.

Harmonics & Inter-Harmonics Analysis
The G5DFR has two FFT engines for harmonics analysis: Cycle by Cycle: performs FFT at 1 cycle resolution for extended bandwidth. This engine provides 512 harmonics order at 50Hz resolution. 10/12 Cycles: performs FFT 10/12 cycles resolution for extended resolution and sub-grouping calculation. This engine provides the magnitude and angle of 512 spectrum components at 5Hz resolution.

Comprehensive Event Mechanism
The G5DFR series is designed to detect any event occurring on your system. The event mechanism allows you to configure events on any measured parameter (more than 1,000) and/or I/O ports. The event mechanism supports out-of-limit events as well as rate of changed limits. As the G5DFR records the waveform
signals continuously. The event configuration doesn’t trigger the recording but stores summary logs including start and end time, duration, severity and magnitude of the event. All the events can be displayed in a tabular or scatter charts as CBEME/ITIC.

Superior Accuracy
Elspec’s pioneering measurement method utilizes a dual-range gain of 2 x 16 Bit to yield, a superior accuracy far surpassing IEC 61000-4-30 Class A requirements, thereby capturing the finest details & deviations in PQ parameters.

Synchronized Monitoring
A unique time synchronization algorithm assures that logged data from multiple units is synchronized & displayed on the same time scale with typical 0.1 ms resolution. Every event on a grid is accurately analysed for precise root cause analysis, behaviour propagation, and traced to its source.