Description
The G4DFR has been designed to meet with the needs of Generation, Transmission & Distribution Power System Monitoring. The G4DFR is a fully-featured Digital Fault Recorder equipped with Continuous Recording enabling it to analyze short transient events, longer term disturbances & trend input quantities such as Voltage & Current R.M.S. Values; Frequency; Active & Reactive Power; Power Factor; Current & Voltage Harmonics; Voltage Sages & Swells; Voltage Flicker; etc.
The BLACKBOXDFR can be uniquely configured as either a centralized OR a decentralized architecture, to fit almost any application making it highly cost effective. The G4DFR automatically retrieves any event, including any power parameter at the highest sampling resolution & accuracy. Optimize your power system to improve reliability, shorten your fault clearance times & verify correct operation of your switchgear & other protection equipment.
Brochure – G4DFR Compatible Digital Fault Recorder PQS
The Perfect DFR Solution:
- Continuous Waveform Recordings
- Impedance Based Fault Location
- Superior Accuracy
- Class A Power Quality Profiling
- 20-Bit Continuous Acquisition At 50khz
- Modular Design / 9 Analog , 16 Digital, 6 Relays, 16GB Per Module
- More Than 1,000 Parameters Are Continuous Recording For Each Analog Channel
- Up-To 20 Modules With 500 Channels.
Unique Features:
- Sampling Rate: The highest sampling rate at 1,024 samples per cycle to yield superior resolution, plus the ability to easily detect transients.
- Real-Time Monitoring: View analog and digital inputs including computed values in real time.
- Continuous Recording: Elspec’s unique PQZIP patented compression technology allows continual recording of all power parameter at the highest sampling resolution and accuracy.
- Communication:
- Ethernet (LAN or WAN structure) in accordance with Ethernet 802.3 using a TCP/IP protocol;
- Cellular GPRS modem or direct communication using copper (RS485/422) connections.
- Time Synchronization: A unique time synchronization algorithm assures that logged data from fault recorders and protection equipment at different locations is synchronized and displayed on the same time scale with typical 0.1ms resolution. Results: every event from all G4DFR and BLACKBOX devices is accurately analyzed for precise root cause analysis. This is ensured by the use of additional components, such as a GPS-receiver and sync-transceiver.
- Powerful Recording System: The combination of the BLACKBOX DFR and the PQSCADA software team up to form a powerful power quality monitoring and disturbance recording system. With Elspec’s PQSCADA Enterprise software in automatic mode, unique data collection and archiving capabilities lead to very short analysis times. The various installation possibilities of the PQSCADA in server, client and evaluation mode meet all requirements such as visualization, analysis for parameterization, commissioning, test, automatic data collection, and data archiving.
- Full Compliance With IEC61000-4-30 CLASS A: Far surpassing the highest standards set by the industry, the BLACKBOX device series complies with standards for: aggregations, time clock uncertainty, flagging, and transient influence quantities.





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