Measure and understand the complex and dynamic power flows in distribution grids and microgrids with the microPMU-LV. The microPMU is like a microscope that has micro-second resolution and ultra-precise accuracy needed for distribution grid applications. The microPMU-LV is ideal for projects that need ultra-precise synchrophasor measurements for investigating stability and impedance questions. The microPMU-LV can also be used for realtime control applications using the IEEE C37.118.2-2011 protocol.


  • Ultra-accurate phasor measurements: TVE 0.01%
  • Connects to voltages up to 48VAC. Ideal for interfacing to MV sensor outputs, or low voltage output signals
  • Simultaneous recording and streaming of synchrophasors
  • Fast recording / streaming rate: 100/sec at 50Hz and 120/sec at 60Hz
  • Voltage and current phasors, frequency, active / reactive powers, power factor
  • Fully compatible with OpenPDC, and with PSL microPMU plotting application software
  • 30 days of micro-synchrophasor measurement stored in internal memory
  • Recordings can be downloaded via FTP
  • Configuration / firmware update via FTP or Web pages (HTTP)
  • Ultra precise mode (for grid stability analysis) or low latency mode (for control applications)
  • Easy installation (can be installed in electrical panels, on distribution poles, pad mount transformers..)
  • Supports connections via PTs and CTs
  • Fully isolated GPS receiver / antenna with cable delay auto-compensation
  • Compliant with IEEE C37.118.1-2011 and C37.118.2-2011


  • Protects equipment from harmonics generated by other
  • Increases operation reliability reducing maintenance costs
  • Extends the lifetime of electrical equipment
  • Provides additional capacity in an existing electrical network
  • Eliminates the need for engineering analysis
  • Reduces energy costs, lowering CO2 emissions
  • Fast return on investment


  • Monitor and understand the stability of microgrids or distribution grids, and backup power systems
  • Event identification and characterization
  • Topology change detection, open/closed state of switches
  • Detection of cyber attacks rehearsals at substations