microPMU Synchrophasor
Pinpoint Grid Stress with a Synched System View
When it comes to power grids, unseen issues anywhere can lead to big problems everywhere. That’s where the microPMU comes in. The microPMU is a high-speed synchrophasor that continuously records and streams time-stamped power quality measurements. This gives grid operators the most current visibility into operations for faster, more informed decision making.
microPMU Synchrophasor Industry Applications
Microgrid & DER Impacted Distribution Grids
Ultra-precise monitoring keeps utility systems, including those with renewable energy sources, stable and operating at maximum performance.
- Millidegree angle accuracy with a Total Vector Error (TVE) of 0.01%
- Exact time granularity at 100–120 evaluations per second properly safeguards grid systems and equipment
Grid Operators
Gain specific, accurate and timely monitoring to proactively identify problems or inefficiencies and ensure grid stability.
- Continuous recording
- Time-stamped power quality measurements
- Instant alerts catch grid condition changes and issues
Geographic Localization
Reduce time spent searching for power quality issues. The microPMU identifies problem areas before they progress by capturing specific geographic-location snapshots of key data points (i.e., voltage, current and frequency) across the grid.
microPMU Synchrophasor Key Benefits
Safeguard Equipment Life and Uptime
Protect vital equipment with real-time alerts to changing power grid conditions.
Localized Problem Identification
Find issues quickly with geographically specific points identified with key data snapshots.
Plug and Play Capabilities
microPMUs come pre-configured, DIN rail mountable and ready to measure single or 3-phase voltages and currents.
Minimize Operating Costs
Efficient, proactive maintenance of system health can reduce major repair work and increase system efficiencies.
Get the Full Picture
Beyond the classic voltage and current synchrophasors, the microPMU also computes and records frequency; fundamental apparent, active and reactive powers; as well as displacement power factor (DPF) at a rate of 120 samples per second.
Real-Time Monitoring
Leverage the most current information of the grid to make more informed decisions, based on the continuous records and streams of time-stamped power quality measurements.
microPMU Synchrophasor System Integrations
The microPMU is preconfigured to send synchrophasor measurements to the server (via Ethernet network). The Plotting Application software is open source and runs on the server. It can be accessed from PC via an internet browser.
Integration Features:
- Fleet Management: Monitor multiple units from the software
- Third-Party Compatibility: Works with OpenPDC and PingThings® Predictive Grid cloud platform
microPMU Synchrophasor Specifications
| Parameter | Specification |
|---|---|
| Modes of Operation (High Accuracy Mode) | Streaming, according to IEE C37.118.2-2011, no recording
Parameters streamed: 3 voltage and 3 current phasor angle and magnitude, frequency, ROCOF Parameters recorded: active/reactive power, power factor Latency: 5 sec typical |
| Modes of Operation (Low Latency Mode) | Streaming, according to IEE C37.118.2-2011, no recording
Parameters streamed: 4 voltage and 4 current phasors, frequency, 4 analog channels Latency: 50 msec typical |
| Dimensions (L x W x H) | 4.33 X 2.89 X 3.08 in. (11.0 X 7.34 X 7.82 cm.) 35mm DIN rail mountable |
| Memory & Storage | 32 GB internal storage, up to 30 days of synchrophasor data |
| Instrument Power Requirement | AC: 24 Vac ±10% at 50/60/400 Hz, 1.5 A max
DC: ±24 to 48 Vdc ±10% (polarity independent), 1 A max Optional PM1 and PM2 modules: 100 to 240 Vac 50/60 Hz and 120 to 370 Vdc Power over Ethernet (PoE) compatible |
| Voltage Measurement Range | microPMU: 0-750VAC L-E
microPMU-LV: 0-28VAC L-E |
| Frequency Range | Nominal 50 Hz, 60 Hz |
| Sampling Rate | 25,600 samples/s at 50 Hz and 30,720 samples/s at 60 Hz |
| Isolation | Up to 5100VAC isolation to Earth, UL/IEC 61010 tested |
| Total Vector Error (TVE) | Typical TVE: ±0.01%
Typical short-term TVE stability for differential measurements: ±0.002% |
| Angle Resolution | 0.001° (noise floor - useful for short-term difference measurements) |
| Current Range | 0-6000 A with split-core CTs |
| Reporting Rate | 10, 12, 15, 20, 30, 60, or 120 frames per second configurable |
| Communication Protocols | FTP or HTTP (secure FTPS and HTTPS), IEEE C37.118.2-2011 |
Manuals, Documentation and Help
Utilities working with microgrids, DERs and renewable energies that need measurement and monitoring at the distribution level to ensure grid health and stability.
The microPMU streams real-time data utilizing the IEEE C37.118.2-2011 communication protocol.
The microPMU identifies grid conditions and issues in real-time in their geographic locations, allowing for proactive maintenance prior to equipment failure.
The microPMU Synchrophasor delivers ultra-precise monitoring at the distribution level with 100–120 evaluations per second and a total vector error (TVE) of 0.01%.
A 360º View of Grid Operations
The microPMU acts like a power quality microscope, zeroing in on system health at different geographic points across the grid and taking perfectly synchronized snapshots of key data points like voltage, current and frequency. These insights are automatically combined to give you a real-time, eagle’s-eye view of your entire system with the sharpest clarity. Exactly what you need to investigate grid stability problems, identify events and uncover hidden threats.
Precision Monitoring for Vital Systems
At 100 or 120 evaluations per second, the microPMU delivers time granularity needed for dynamic changes in distribution networks. And with a total vector error (TVE) of 0.01%, the microPMU delivers the millidegree angle accuracy needed to ensure the stability of microgrids, distribution grids and power generation systems.
Purpose-Built for Today’s Power Challenges
Request a Demo
Simple Installation
Easily connect the microPMU to electrical panels, distribution poles, transformers and more
Real-Time Monitoring and Control
Be instantly alerted to changing grid conditions and emerging problems to trigger corrective action
Industry-Leading Performance
With best-in-class monitoring capabilities, the microPMU meets the standards of the U.S. Department of Energy and forms part of the North American Synchrophasor Initiative
