The DEWETRON power fault recorders are network analyzers for low, medium and high voltage systems. Because of the flexibility of the software, many functions can be done in a single box - from fault recording to RMS monitoring.
Depending on the system, up to 48 analog voltage and current channels can be monitored within one box. Along with its main task of monitoring and recording RMS values, the PFR series identifies and stores faults as waveforms for detailed analysis. A unique capability of these systems is that they can use calculated line-to-line channels for these events also.
Data can be stored both locally on the PFR's internal hard disk drive, or to a central SQL database. Our flexible system architecture means that multiple databases are supported for one or more PFR systems as well as other DEWETRON instruments. This system-wide interoperability is also a unique feature to DEWETRON.
The Power Fault Recording and Quality Monitoring systems can handle different tasks at the same time in the same box - and this is why DEWETRON PFRs are different: full flexibility in hardware and software is our advantage. As an example, following can be done in ONE BOX at the same time:
- Transient Fault Recorder (TFR)
- Disturbance Fault Recorder (DFR)
- Voltage Recorder (replacement of paper recorders)
- Power Quality Monitor (PQM)
- Power Measurement (PM)
Monitoring Systems with Central Server Technology
Because of technical needs and market rules it comes up more and more that power network companies are building up monitoring systems for power fault recording and quality monitoring. Those networks can be made based on PFR technology with standard internet interfaces and central SQL servers. The data evaluation is made with the help of the strong PMT software on multiple client computers. Email based automatic reports are just one feature of those large systems.
Large Substations and Maximum Flexibility
Our DEWE-818-PFR is the most flexible system in hardware and software and the right instrument for large substations in all voltage levels. Beside voltage and current, even all other physical parameters can be monitored as well.
Small Substations
The typical application for the DEWE-820-PFR are medium voltage substations with a small number of feeder lines.
Stand-alone Systems
For applications where no data network is required, very small applications or test bench applications the DEWE-8xx-PFR series can be used as a stand-alone system as well.