Power System Monitoring PFM300

The Power System Monitoring PFM300 is a multifunctional Dynamic System Monitor which fully integrates with DIgSILENT PowerFactory software. PFM300 features grid and plant monitoring, fault recording, power quality and grid characteristics analysis. It provides easy access to recorded data and test results and allows for the analysis of trends and the verification of system disturbance responses. PFM300 supports the latest standards and protocols.


Multifunctional Fault and Event Recorder

Transient fault recording facilitates the analysis of protection and circuit-breaker device operation.

  • Digital Fault Recorder (DFR)
  • Flexible channel configuration
  • Up to 640 analogue and 2688 digital channels in one system
  • Flexible trigger conditions on all inputs and conditions
  • Integrated Sequence of Events Recorder (SOE)
  • Protection relay function and status supervision
  • Different recording rates; fully-configurable
  • Centralised Master Station software for convenient data analysis of all field-deployed PFM300 systems
  • IEC 61850 compliant

Dynamic System & Network Performance Monitor (DSM)

DSM performs the important tasks of power system stability supervision and determination and analysis of key system parameters.

  • Voltage stability monitoring and steady-state instability supervision
  • Generation outage, load rejection and system frequency response analysis
  • Primary- and secondary response supervision
  • Load-shedding tuning and optimisation
  • Power System Stabiliser (PSS) effectiveness supervision
  • Tie-line power exchange and network control characteristics
  • Control performance supervision and identification
  • Generator and load parameter identification
  • Phase angle supervision
  • Power oscillation detection and analysis
  • Subsynchronous oscillation monitoring
  • Supervision of super-synchronous control interactions
  • Customised signal aggregation based on multiple input signals

Power Plant Monitor

Precise knowledge of grid response and plant characteristics is often required for solving stability problems, operating within stability margins and for the optimal tuning of grid and plant control systems.

  • Generator, motor and general feeder load tests as well as parameter identification
  • AVR/exciter performance supervision and identification
  • Prime mover and associated controls supervision (boiler control, primary control, etc.)
  • Optimal tuning of Power System Stabilisers (PSS)
  • Supervision of shaft oscillations

Phasor Measurement Unit (PMU)

Wide area measurement (WAM) in regional transmission grids and very wide area super grids via PMUs is considered to be one of the most important measurement techniques in future power systems. PMUs increase grid reliability by early detection of faults and prevention of power outages.

  • Real-time phasor measurement technology with high accuracy synchronised time stamping
  • IEEE C37.118 /2005 /2011 compliant
  • Multiple C37.118 inputs
  • Aggregation of C73.118 inputs with analogue signal inputs
  • C37.118 output

Power Quality Monitor

Poor power quality is a problem for all consumers. It contributes to high energy costs and production disturbances.
Following the IEC 61000-4-30 standard it is possible to verify the power quality of the power supply.

  • IEC 61000-4-30 Class A
  • True RMS voltage and current, frequency, harmonics and interharmonics up to the 50th order according to IEC 61000-4-7, as well as unbalance, voltage dips, swells and interruptions
  • Flickermeter according to IEC 61000-4-15
  • Recording of all time frames from half-cycle stream up to 2 hours aggregated
  • Statistical reports