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microPMU

Product catalog summary

Overview
The microPMU is a high-resolution device designed to measure and analyze power flows in distribution grids and microgrids. It offers micro-second resolution and precise accuracy, making it suitable for projects requiring detailed synchrophasor measurements for stability and impedance analysis. It supports real-time control applications via the IEEE C37.118.2-2011 interface.

Features

Ultra-accurate phasor measurements with a Total Vector Error (TVE) of 0.01%.
Simultaneous recording and streaming of synchrophasors at rates of 100/sec at 50Hz and 120/sec at 60Hz.
Supports voltage and current phasors, frequency, active/reactive powers, and power factor measurements.
Compatible with OpenPDC and PSL microPMU plotting software.
Stores 30 days of micro-synchrophasor measurements in internal memory, downloadable via FTP.
Configuration and firmware updates via FTP or HTTP.
Two operational modes: ultra-precise for grid stability analysis and low latency for control applications.
Easy installation in various locations such as electrical panels and distribution poles.
Includes a fully isolated GPS receiver with cable delay auto-compensation.

Applications

Monitoring and understanding the stability of microgrids and distribution grids.
Event identification and characterization.
Topology change detection.
Detection of cyber attack rehearsals at substations.

Specifications
Mains Voltage Input Channels

Connection: L1, L2, L3, N via PQube 3 screw terminals.
Frequency Range: 50 Hz, 60 Hz.
Mains Configuration: Single-phase, split-single-phase, delta, wye/star.
Nominal Input Voltage Range: 100 VAC ~ 960 VAC L-L.
Sampling Rate: 25,600 samples/s @ 50Hz and 30,720 samples/s @ 60Hz.
Isolation: Tested up to 5100VAC to Earth.
Installation Category: CAT IV for voltages up to 300 VAC L-N.

Current Input Channels

Measurement Type: External current transformer, voltage-type secondary.
CT Input Ratio Range: 1:1 to 50000:1.
Nominal Input: 0.333 V RMS.
Sampling Rate: 25,600 samples/s @ 50Hz and 30,720 samples/s @ 60Hz.

Power Measurements Definitions

Watts: Sum of true instantaneous per-phase power.
Volt-Amps: Sum of per-phase product of RMS voltage and RMS current.
Power Factor: Ratio of Watts to Volt-Amps.
VARs: Fundamental VARs.

Modes of Operation

Ultra Precise Mode: Records to internal memory and streams according to C37.118.2-2011.
Low Latency Mode: Uses P-Filter and M-Filter for streaming with typical latency of 50 ms.

Technical Specifications

Dimensions: 4.33 in X 2.89 in X 3.08 in.
Operating Environment: -20 ~ 65 °C, 5 ~ 95% RH, <2000 m above sea level.
Power Supply: 24 VAC ±10% or ±24 ~ 48 VDC ±10%, PoE compatible.
Internal Memory: 32 GB for up to 30 days of data.
Communication: Ethernet port RJ-45, optional wireless and cell modem.

Catalog excerpts

DATA SHEET microPMU FEATURES • Ultra-accurate phasor measurements: • Fast recording / streaming rate: • 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 • Configuration / firmware update via Measure and understand the complex and dynamic power flows in distribution grids and microgrids with the microPMU. • Ultra precise mode (for grid stability The microPMU is like a microscope that has micro-second resolution and ultra-precise accuracy needed for distribution grid applications. • Easy installation (can be installed The microPMU is ideal for projects that need ultra-precise synchrophasor measurements for investigating stability and impedance questions. The microPMU can also be used for real-time control applications using the IEEE C37.118.2-2011 interface. • Fully isolated GPS receiver / antenna analysis) or low latency mode (for control applications) in electrical panels, on distribution poles, pad mount transformers..) with cable delay auto-compensation APPLICATIONS • Monitor and understand stability of microgrids or distribution grids, and backup power systems • vent identification and characterization E • opology change detection (open/closed state of switches) T • etection of cyber attacks rehearsals at substations D Above & Beyond Power

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Part Number: microPMU-DINRaiL-00-000-XXXX MAINS VOLTAGE INPUT CHANNELS 'Amplitude & angle accuracies are dependent when using the Low Latency mode DATA SHEET: microPMU - Nov 5, 2018 v4

Open the catalog to page 2

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