Elspec – G5DFR Multi-Functional Digital Fault Recorder

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The BlackBox G5DFR Power Quality analyzer?is?a fully featured digital fault recorder embedded with PQZIP technology. The BlackBox G5DFR Power Quality analyzer is?a distributed multi-functional data acquisition device that continuously records all waveform signals at sampling rate of 1,024 samples per cycle.


  • Digital Fault Recorder (DFR)
  • Phasor Measurement Unit (PMU)
  • Power Quality Monitoring (PQM)
  • Sequence of Event Recording (SER)
  • Dynamic System Monitoring (DSM)
  • Impedance based Fault Location (IbFL)
  • Energy Billing Measurement (EBM)
  • Impedance?Distance to?Fault Location (IDFL)


  • 24-Bit Continuous acquisition at 1,024 sample per cycle[50/60Hz]
  • Modular Design
  • Centralized and decentralized architecture
  • Supreme synchronization
  • Complies with IEC 61850 MMS, GOOSE messaging and sample value
  • Comprehensive web interface
  • 7? touch LCD
  • Scalable architecture

Continous Waveform Recordings

Unique to the BLACKBOX series

the G5DFR is a power quality analyzer able to record and store all electrical waveform at any given time, for more than a year, with no gaps in the data. RMS, harmonics and any other values from waveform in post-processing are calculated, including the tabulation of more than 10,000 parameters. With the G5DFR Analyzer, the result is clear since it shows the conditions before, during, and after an event.

Data Acquisition
Sampling Rate, Maximum Samples/Cycle 256512


Digital & Aux Channels Sampling Rate Samples/Cycle 128
Type of Analog to Digital Converter 24 Bit
Dimensions [W X H X D] 21.5 x 22.1 x 29.1 cm (8.48” x 8.7” x 11.45”)
Fundamental Frequency 37 – 70Hz
Frequency Resolution 1mHz
Frequency accuracy ±1mHz
Applicable Standard IEEE C37.118 – 2011
M Class transmission Max rate 100/sec for 50Hz, 120/sec for 60Hz
P Class Transmission rate 200/sec for 50Hz, 240/sec for 60Hz
Communication (Rear Panel )
 SFP Ports (100/1,000MB/s) 2
 Serial Ports 1
 PPS 1
 Communication (Front Panel )
 Ethernet Port (10/100MB/s) 1
 Serial 1
 Communication Protocols
 IEC 61850 MMS, GOOSE, Sample Value
Power Supply
Main 100-260 VAC @50/60 Hz or
100-300 VDC
Aux 24VDC
Internal Real Time Clock 20PPM
GPS 0.5μsec
IRIG B 0.5 μsec
NTP 100 μsec
Environmental Conditions
Operation Temperature -20C to 70C (-40F to 1580F)
Storage Temperature – 40C to 85C (-40F to 185F)
Human Machine
Human Machine Interface
Built in 7” 1MP LCD. Additional comprehensive web server for local and remote real-time monitoring, historical data analysis and control.

Additional information